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Biodegradation of poly(butylene succinate) in soil laboratory incubations assessed by stable carbon isotope labelling. Nat Commun 2022; 13:5691. [PMID: 36171185 PMCID: PMC9519748 DOI: 10.1038/s41467-022-33064-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 08/30/2022] [Indexed: 11/20/2022] Open
Abstract
Using biodegradable instead of conventional plastics in agricultural applications promises to help overcome plastic pollution of agricultural soils. However, analytical limitations impede our understanding of plastic biodegradation in soils. Utilizing stable carbon isotope (13C-)labelled poly(butylene succinate) (PBS), a synthetic polyester, we herein present an analytical approach to continuously quantify PBS mineralization to 13CO2 during soil incubations and, thereafter, to determine non-mineralized PBS-derived 13C remaining in the soil. We demonstrate extensive PBS mineralization (65 % of added 13C) and a closed mass balance on PBS−13C over 425 days of incubation. Extraction of residual PBS from soils combined with kinetic modeling of the biodegradation data and results from monomer (i.e., butanediol and succinate) mineralization experiments suggest that PBS hydrolytic breakdown controlled the overall PBS biodegradation rate. Beyond PBS biodegradation in soil, the presented methodology is broadly applicable to investigate biodegradation of other biodegradable polymers in various receiving environments. This study applies stable carbon isotope labelling to study polymer biodegradation in soils. This labelling enables accurate and precise tracking of polymer carbon during biodegradation and, thereby, provides a holistic picture of this process.
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Shi J, Wang J, Lv J, Wang Z, Peng Y, Shang J, Wang X. Microplastic additions alter soil organic matter stability and bacterial community under varying temperature in two contrasting soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156471. [PMID: 35660606 DOI: 10.1016/j.scitotenv.2022.156471] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 05/28/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
Microplastics can accumulate in soils and strongly affect the biogeochemical cycle. Biodegradable plastic films show potential as sustainable alternatives that could reduce microplastic soil contamination and accumulation. However, the effects of traditional and biodegradable microplastics on soil organic matter (SOM) stability are not sufficiently understood, particularly under varying temperatures. The objective of this study was to examine the effects of polyethylene (PE) and biodegradable polylactic acid (PLA) microplastics on SOM stability and bacterial community in two contrasting soils (Black soil vs. Loess soil) under varying temperature conditions (15 °C vs. 25 °C). Results showed that microplastics addition significantly enhanced cumulative CO2 emissions and DOC contents, particularly 1 % PLA treatment accelerated CO2 emissions by 19 % - 74 %, DOC content by 3 % - 23 % at 25 °C. A higher temperature sensitivity (Q10) at the PLA treatment indicated that PLA is more susceptible to elevated temperature compared to PE. The presence of both PE and PLA microplastics significantly changed the DOC spectral characteristics, i.e., high temperature increased the value of the specific UV absorbance (SUVA) in soil without microplastics, while decreased it in soil with microplastics. In comparison to soil without microplastics, soil exposed to 1 % microplastics had lower MBC concentrations and greater metabolic quotient. 16S rRNA gene sequencing showed that the presence of PLA microplastic significantly alters soil bacterial community. PE and CK had similar Bray-Curtis distances between two temperatures, while PLA increased the dissimilarity between CK compared to PE. Compared to the two soils, loess soil is more sensitive to microplastics addition. Microplastics have a non-ignorable effect on soil organic matter stability, the interaction between microplastics and soil environment should be considered.
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Affiliation(s)
- Jia Shi
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jie Wang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Junfei Lv
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China
| | - Zi Wang
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yumei Peng
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jianying Shang
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xiang Wang
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China.
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Šašinková D, Serbruyns L, Julinová M, FayyazBakhsh A, De Wilde B, Koutný M. Evaluation of the biodegradation of polymeric materials in the freshwater environment—An attempt to prolong and accelerate the biodegradation experiment. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Dar SU, Wu Z, Zhang L, Yu P, Qin Y, Shen Y, Zou Y, Poh L, Eichen Y, Achmon Y. On the quest for novel bio-degradable plastics for agricultural field mulching. Front Bioeng Biotechnol 2022; 10:922974. [PMID: 36003544 PMCID: PMC9393227 DOI: 10.3389/fbioe.2022.922974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/28/2022] [Indexed: 11/13/2022] Open
Abstract
Plasticulture, the practice of using plastic materials in agricultural applications, consumes about 6.7 million tons of plastics every year, which is about 2% of the overall global annual plastics production. For different reasons, plastic material used for agriculture is difficult to recycle. Therefore, most of it is either buried in fertile soils, thereby significantly causing deterioration of their properties, or, at best case, end in landfills where its half-life is measured in decades and even centuries. Hence, developing biodegradable plastic materials that are suitable for agricultural applications is a vital and inevitable need for the global human society. In our labs, two types of potentially biodegradable plastic polymer films were prepared and characterized imidazolium in terms of their bio-degradability. In the first approach, polymers made of ionic liquid monomers were prepared using photo radical induced polymerization. The second approach relies on formation of polyethylene-like n-alkane disulfide polymers from 1,ω-di-thiols through thermally activated air oxidation. These two families of materials were tested for their biodegradability in soils by using a simulation system that combines a controlled environment chamber equipped with a respirometer and a proton-transfer-reaction time of flight mass spectrometer (PTR-TOF-MS) system. This system provides a time-dependent and comprehensive fingerprint of volatiles emitted in the degradation process. The results obtained thus far indicate that whereas the ionic-liquid based polymer does not show significant bio-degradability under the test conditions, the building block monomer, 1,10-n-decane dithiol, as well as its disulfide-based polymer, are bio-degradable. The latter reaching, under basic soil conditions and in room temperature, ∼20% degradation within three months. These results suggest that by introduction of disulfide groups into the polyethylene backbone one may be able to render it biodegradable, thus considerably shortening its half-life in soils. Principal component analysis, PCA, of the data about the total volatiles produced during the degradation in soil indicates a distinctive volatile “fingerprint” of the disulfide-based bio-degradable products which comes from the volatile organic compounds portfolio as recorded by the PTR-TOF-MS. The biodegradation volatile fingerprint of this kind of film was different from the “fingerprint” of the soil background which served as a control. These results can help us to better understand and design biodegradable films for agricultural mulching practices.
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Affiliation(s)
- Sami Ullah Dar
- Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, Shantou, China
- Guangdong Technion Department of Chemistry—Israel Institute of Technology, Shantou, China
| | - Zizhao Wu
- Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, Shantou, China
| | - Linyi Zhang
- Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, Shantou, China
| | - Peirong Yu
- Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, Shantou, China
| | - Yiheng Qin
- Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, Shantou, China
| | - Yezi Shen
- Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, Shantou, China
| | - Yunfan Zou
- Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, Shantou, China
| | - Leslie Poh
- Polymer Physics Laboratory, Department of Chemical Engineering, Guangdong Technion–Israel Institute of Technology (GTIIT), Shantou, China
| | - Yoav Eichen
- Guangdong Technion Department of Chemistry—Israel Institute of Technology, Shantou, China
| | - Yigal Achmon
- Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, Shantou, China
- Faculty of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Haifa, Israel
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion—Israel Institute of Technology, Shantou, China
- *Correspondence: Yigal Achmon,
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Liu Q, Wang Y, Liu J, Liu X, Dong Y, Huang X, Zhen Z, Lv J, He W. Degradability and Properties of PBAT-Based Biodegradable Mulch Films in Field and Their Effects on Cotton Planting. Polymers (Basel) 2022; 14:polym14153157. [PMID: 35956671 PMCID: PMC9371060 DOI: 10.3390/polym14153157] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/28/2022] [Accepted: 07/28/2022] [Indexed: 12/10/2022] Open
Abstract
Biodegradable mulches (BDMs) are considered promising alternative green materials to achieve the substitution of polythene (PE) films to reduce plastic pollution. However, whether the BDMs are sufficiently effective to promote cotton production as PE film is a controversial topic. In this study, laboratory determination and field experiments were conducted with one pure Poly(butylene adipate-co-terephthalate) (PBAT) film (BDM), two commercial PBAT-based films (BDM1 and BDM2), and one PE film to (ⅰ) compare the degradation behavior, morphology, and property changes during field application, and (ⅱ) reveal their effects on biomass accumulation and cotton yield. Degradation behavior, degradation rate, structure, thermal stability, crystallinity, and molecular weight changes of the films before and after mulching were investigated and characterized. Water vapor transmission rate and mechanical properties of the films and the effects these on soil temperature, crop growth, and cotton yield were discussed. Results show that the three PBAT-based mulch films gradually degraded during mulching. The molecular weight, thermal stability, and crystallinity of BDM1 and BDM2 decreased. Interestingly, BDM showed the opposite characteristics, but the degradation degree was greatest at harvest. PE film showed no significant changes in its microscopic appearance, thermal performance, or properties. These PBAT-based films were positively correlated with the complete coverage period of the films. In-depth studies focused on BDMs with a longer mulching period must be developed to promote the substitution of BDMs into PE to reduce the residual mulch pollution in cotton fields.
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Affiliation(s)
- Qi Liu
- National Engineering Laboratory for Crop Efficient Water Use and Disaster Mitigation, Key Laboratory of Prevention and Control of Residual Pollution in Agricultural Film, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.L.); (Y.W.); (J.L.); (Y.D.); (X.H.)
| | - Yue Wang
- National Engineering Laboratory for Crop Efficient Water Use and Disaster Mitigation, Key Laboratory of Prevention and Control of Residual Pollution in Agricultural Film, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.L.); (Y.W.); (J.L.); (Y.D.); (X.H.)
| | - Jialei Liu
- National Engineering Laboratory for Crop Efficient Water Use and Disaster Mitigation, Key Laboratory of Prevention and Control of Residual Pollution in Agricultural Film, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.L.); (Y.W.); (J.L.); (Y.D.); (X.H.)
| | - Xiaowei Liu
- Shihezi Agricultural Science Research Institute, Shihezi 832000, China;
| | - Yanyan Dong
- National Engineering Laboratory for Crop Efficient Water Use and Disaster Mitigation, Key Laboratory of Prevention and Control of Residual Pollution in Agricultural Film, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.L.); (Y.W.); (J.L.); (Y.D.); (X.H.)
| | - Xin Huang
- National Engineering Laboratory for Crop Efficient Water Use and Disaster Mitigation, Key Laboratory of Prevention and Control of Residual Pollution in Agricultural Film, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.L.); (Y.W.); (J.L.); (Y.D.); (X.H.)
| | - Zhichao Zhen
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100045, China
- Correspondence: (Z.Z.); (J.L.); (W.H.)
| | - Jun Lv
- Shihezi Agricultural Science Research Institute, Shihezi 832000, China;
- Correspondence: (Z.Z.); (J.L.); (W.H.)
| | - Wenqing He
- National Engineering Laboratory for Crop Efficient Water Use and Disaster Mitigation, Key Laboratory of Prevention and Control of Residual Pollution in Agricultural Film, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.L.); (Y.W.); (J.L.); (Y.D.); (X.H.)
- Correspondence: (Z.Z.); (J.L.); (W.H.)
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56
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Chen C, Pan J, Xiao S, Wang J, Gong X, Yin G, Hou L, Liu M, Zheng Y. Microplastics alter nitrous oxide production and pathways through affecting microbiome in estuarine sediments. WATER RESEARCH 2022; 221:118733. [PMID: 35714467 DOI: 10.1016/j.watres.2022.118733] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/19/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Increasing microplastics (MPs) pollution in estuaries profoundly impacts microbial ecosystems and biogeochemical processes. Nitrous oxide (N2O), a powerful greenhouse gas, is an important intermediate product of microbial nitrogen cycling. However, how MPs regulate N2O production and its pathways remain poorly understood. Here, impacts of traditional petroleum-based and emerging biodegradable MPs on microbial N2O production and its pathways were studied through dual-isotope (15N-18O) labeling technique and molecular methods. Results indicated that both traditional petroleum-based and emerging biodegradable MPs promoted sedimentary N2O production, whereas pathways varied. Biodegradable polylactic acid (PLA) MPs displayed greater promotion of N2O production than petroleum-based MPs, polyvinyl chloride (PVC) and polyethylene (PE), of which PLA promoted through nitrifier nitrification (NN) and heterotrophic denitrification (HD), PE through nitrifier denitrification and HD, and PVC through NN. By combining the analysis of N2O production rates with sediment chemical and microbiological properties, we demonstrated that the enrichment of nitrifying and denitrifying bacteria, as well as related functional genes directly and/or indirectly increased N2O production primarily by interacting with carbon and nitrogen substrates. Different response of nitrogen cycling microbes to MPs led to the difference in N2O increase pathways, of which nitrifying bacteria significantly enriched in all MPs treatments due to the niches provided by MPs. However, part of denitrifying bacteria significantly enriched in treatments containing PLA and PE MPs, which may serve as organic carbon substrates. This work highlights that the presence of MPs can promote sedimentary N2O production, and the emerging biodegradable MPs represented by PLA may have a greater potential to enhance estuarine N2O emissions and accelerate global climate change.
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Affiliation(s)
- Cheng Chen
- Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China
| | - Jiongyu Pan
- Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China
| | - Shuxin Xiao
- Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China
| | - Jiayi Wang
- Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China
| | - Xiaoluo Gong
- Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China
| | - Guoyu Yin
- Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China.
| | - Lijun Hou
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, China
| | - Min Liu
- Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China
| | - Yanling Zheng
- Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China
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Infurna G, Botta L, Maniscalco M, Morici E, Caputo G, Marullo S, D’Anna F, Dintcheva NT. Biochar Particles Obtained from Agricultural Carob Waste as a Suitable Filler for Sustainable Biocomposite Formulations. Polymers (Basel) 2022; 14:polym14153075. [PMID: 35956588 PMCID: PMC9370289 DOI: 10.3390/polym14153075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Abstract
In the context of sustainable and circular economy, the recovery of biowaste for sustainable biocomposites formulation is a challenging issue. The aim of this work is to give a new life to agricultural carob waste after glucose extraction carried out by a local factory for carob candy production. A pyrolysis process was carried out on bio-waste to produce biofuel and, later, the solid residual fraction of pyrolysis process was used as interesting filler for biocomposites production. In this work, biochar particles (BC) as a pyrolysis product, after fuels recovery of organic biowaste, specifically, pyrolyzed carobs after glucose extraction, were added on poly(butylene-adipate-co-terephthalate), (PBAT), at two different concentrations, i.e., 10 and 20 wt%. The BC have been produced using three pyrolysis processing temperatures (i.e., 280, 340 and 400 °C) to optimize the compositions of produced solid fractions and biofuels. The resulting particles from the pyrolysis process (BC280, BC340 and BC400) were considered as suitable fillers for PBAT. Firstly, the BC particles properties were characterized by elemental composition and spectroscopy analysis, particle size measurements and evaluation of radical scavenging activity and efficiency. Moreover, PBAT/BC composites were subjected to analysis of their rheological and thermal behavior, morphologies and mechanical properties. In addition, accelerated weathering, monitored by both tensile test and spectroscopic analysis, was carried out, and obtained results show that the biochar particles can exert a beneficial effect on photo-oxidation delay of PBAT matrix.
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Affiliation(s)
- Giulia Infurna
- Dipartimento di Ingegneria, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy; (G.I.); (M.M.); (E.M.); (G.C.)
| | - Luigi Botta
- Dipartimento di Ingegneria, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy; (G.I.); (M.M.); (E.M.); (G.C.)
- Correspondence: (L.B.); (N.T.D.); Tel.: +39-09123863709 (L.B.); +39-09123862658 (N.T.D.)
| | - Marco Maniscalco
- Dipartimento di Ingegneria, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy; (G.I.); (M.M.); (E.M.); (G.C.)
| | - Elisabetta Morici
- Dipartimento di Ingegneria, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy; (G.I.); (M.M.); (E.M.); (G.C.)
- ATeN Center, Università di Palermo, Viale delle Scienze, Ed. 18, 90128 Palermo, Italy
| | - Giuseppe Caputo
- Dipartimento di Ingegneria, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy; (G.I.); (M.M.); (E.M.); (G.C.)
| | - Salvatore Marullo
- Dipartimento STEBICEF, Sez. Chimica, Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; (S.M.); (F.D.)
| | - Francesca D’Anna
- Dipartimento STEBICEF, Sez. Chimica, Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; (S.M.); (F.D.)
| | - Nadka Tz. Dintcheva
- Dipartimento di Ingegneria, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy; (G.I.); (M.M.); (E.M.); (G.C.)
- Correspondence: (L.B.); (N.T.D.); Tel.: +39-09123863709 (L.B.); +39-09123862658 (N.T.D.)
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Gao X, Fu C, Li M, Qi X, Jia X. Effects of Biodegradation of Corn-Starch-Sodium-Alginate-Based Liquid Mulch Film on Soil Microbial Functions. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19148631. [PMID: 35886488 PMCID: PMC9317586 DOI: 10.3390/ijerph19148631] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/13/2022] [Accepted: 07/13/2022] [Indexed: 12/10/2022]
Abstract
In response to the problems of the poor degradability and mechanical properties of liquid mulch, natural non-toxic polymer compound corn starch and sodium alginate were used to prepare fully biodegradable liquid mulch. The preparation conditions of the mulch were optimized, and the mechanical properties of the mulch and the changes in the microbial community in soil with the mulch degradation were analyzed. The corn-starch–sodium-alginate-based liquid mulch film had an optimum performance at a tensile strength of 0.145 MPa and an elongation at a break of 16.05%, which was attained by adding 33.33% sodium alginate, 50% glycerol 22 and 4% citric acid to corn starch after moist heat modification. Fourier transform infrared spectroscopy analysis showed that the -COOH in sodium alginate could interact with the -OH in starch and glycerol through hydrogen bonding, thus, resulting in a denser structure and better mechanical properties of the liquid mulch as a non-crystalline material. The soil burial degradation study of mulch revealed that corn-starch–sodium-alginate-based liquid mulch degraded completely at 25 days macroscopically, and mulch degradation increased soil organic matter content. Microbial kinetic analysis showed that the abundance and diversity of the bacterial community decreased with the degradation of the mulch, which was conducive to the optimization of the bacterial community structure and function. Arthrobacter of the class Actinomycetes became the dominant microorganism, and its abundance increased by 16.48-times at 14 days of mulch degradation compared with that before degradation, and Acidophilus phylum (14 days) decreased by 99.33%. The abundance of fungal communities was elevated in relation to the main functional microorganisms involved in liquid mulch degradation, with Alternaria and Cladosporium of the Ascomycete phylum Zygomycetes being the most active at the early stage of mulch degradation (7 days), and the relative abundance of Blastocystis was significantly elevated at the late stage of mulch degradation (14 days), which increased by 13.32%. This study provides important support for the green and sustainable development of modern agriculture.
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Affiliation(s)
- Xia Gao
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China; (X.G.); (C.F.)
- Key Laboratory of Cleaner Production, Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Chenxing Fu
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China; (X.G.); (C.F.)
- Key Laboratory of Cleaner Production, Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Mingxiao Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (M.L.); (X.Q.)
| | - Xuejiao Qi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (M.L.); (X.Q.)
| | - Xuan Jia
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China; (X.G.); (C.F.)
- Key Laboratory of Cleaner Production, Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing 100048, China
- Correspondence:
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59
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Wang Y, Jia X, Olasupo IO, Feng Q, Wang L, Lu L, Xu J, Sun M, Yu X, Han D, He C, Li Y, Yan Y. Effects of biodegradable films on melon quality and substrate environment in solar greenhouse. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 829:154527. [PMID: 35307450 DOI: 10.1016/j.scitotenv.2022.154527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/25/2022] [Accepted: 03/08/2022] [Indexed: 05/14/2023]
Abstract
With the increase in plastic pollution of farmland substrate, biodegradable mulch film research has become a hotspot. However, the degradation rate of biodegradable plastic film over the entire crop growth period is still unclear, as well as its impact on crop growth and product quality. Here, several properties of two kinds of composite biodegradable mulch films, PBAT/PLA-[S1] and PBAT/lignin-[S2], are studied with polyethylene-[PE] and uncovered substrate (CK) as controls. We tested the differences in morphological characterization, physical properties, and weight loss rate of the plastic films, as well as the effects of the different plastic films on melon yield and quality, substrate temperature and humidity, physical and chemical properties of the substrate, and substrate fungal species composition. Compared to PE, biodegradable plastic films S1 and S2 increased substrate temperature and the net photosynthetic rate of leaves. The results of substrate 18 s rDNA assay of CK, PE, S1, and S2 after 80 days of treatment and pre-treatment showed that a total of 12 fungal phylum, with 317 fungal genera were found, in which Ascomycota as the main phyla and Penicillium as the main genera. Compared with PE, the S2 treatment significantly increased the single fruit weight, central sugar content and soluble sugar of melon by 225.35 g, 1.26%, and 0.68%, respectively (p < 0.05). When buried for 240 d, the weight loss rate of S2 was significantly increased by 86.08% compared with PE (p < 0.05). From these results, we extrapolated that covering the substrate with the most biodegradable film, PBAT/lignin composite (10 μm), improved the yield and fruit quality of the melon in winter greenhouse production.
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Affiliation(s)
- Yijia Wang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China; College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Xianfei Jia
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Ibraheem Olamide Olasupo
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qian Feng
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Lei Wang
- Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu, China
| | - Lu Lu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Xu
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Mintao Sun
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xianchang Yu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Deguo Han
- College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Chaoxing He
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yansu Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yan Yan
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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60
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Greaseproof, hydrophobic, and biodegradable food packaging bioplastics from C6-fluorinated cellulose esters. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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61
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Xi B, Wang B, Chen M, Lee X, Zhang X, Wang S, Yu Z, Wu P. Environmental behaviors and degradation methods of microplastics in different environmental media. CHEMOSPHERE 2022; 299:134354. [PMID: 35306053 DOI: 10.1016/j.chemosphere.2022.134354] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/21/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Microplastics, as a group of emerging contaminants, are widely present in environmental media and have the potential to endanger the ecological environment and human health. Due to the inconsistencies and difficulties inherent in the analysis of microplastic particles, global monitoring data on the distribution of microplastics in the environment are still far from sufficient. The fate and migration of microplastics in the environment are also uncertain. Therefore, there have been increasing reviews on the distribution, biological effects, migration, and health risks of microplastics. However, reports focusing on the degradation of microplastics are still rare. Understanding and commanding the environmental behavior of microplastics are of great significance to explore the treatment of microplastic pollution. Although some preliminary studies on microplastics have been carried out, there is still an urgent need to conduct a comprehensive study on environmental behaviors and degradation methods of microplastics in different environmental media. This article summarizes the recent advances on microplastics, basically includes the distribution and ecological impact of microplastics in soil and water environments, then elaborates the migration behavior and influencing factors of microplastics, and focuses on the research progress of microplastics degradation methods. On this basis, the problems existing in the current research and the future development directions have been proposed. This review could provide a more systematic reference for the development and research of microplastics in the future.
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Affiliation(s)
- Binbin Xi
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China
| | - Bing Wang
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China; Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guiyang, Guizhou 550025, China.
| | - Miao Chen
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China; Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guiyang, Guizhou 550025, China
| | - Xinqing Lee
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou 550081, China
| | - Xueyang Zhang
- School of Environmental Engineering, Jiangsu Key Laboratory of Industrial Pollution Control and Resource Reuse, Xuzhou University of Technology, Xuzhou 221018, China
| | - Shengsen Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Zebin Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Panfeng Wu
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
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62
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Xie J, Yan Y, Fan S, Min X, Wang L, You X, Jia X, Waterhouse GIN, Wang J, Xu J. Prediction Model of Photodegradation for PBAT/PLA Mulch Films: Strategy to Fast Evaluate Service Life. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9041-9051. [PMID: 35580299 DOI: 10.1021/acs.est.2c01687] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Eco-friendly biodegradable PBAT/PLA mulch films are attracting increasing interest in sustainable agricultural production. However, currently, little is known about the service life for the PBAT/PLA mulch films. Herein, PBAT/PLA mulch films are subjected to indoor UV-accelerated degradation (UAD) experiments and field cultivation environment degradation (CED) experiments to systematically investigate the relationship between UAD and CED processes. Results demonstrate that 10 days of indoor UAD treatment corresponds to around 120 days aging under outdoor CED conditions. Using eight PBAT/PLA evaluation indicators (haze, elongation at break, tensile strength, gel content, light transmittance, polydispersity index, Mn, Mw), we established a service life prediction model for PBAT/PLA mulch films based on short-term indoor UAD experiments, which could accurately estimate the long-term service life of the mulch films in the field. In particular, using the haze value, near-perfect correlation (R2 = 0.995 for eq. 1 and R2 = 0.993 for eq. 2) was found between CED days and UAD days. The establishment of these reliable predictive models for the service lifetime of PBAT/PLA mulch films will avoid the undesirable premature breakdown during crop growth, thus fostering end-user confidence in eco-friendly biodegradable mulch films.
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Affiliation(s)
- Jiazhuo Xie
- College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
- National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, Taian 271018, China
| | - Yan Yan
- The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shaohua Fan
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, China
| | - Xiangyu Min
- College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Lei Wang
- Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China
| | - Xiaoqing You
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, China
| | - Xianfei Jia
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, China
| | | | - Jing Wang
- College of Information Science and Engineering, Shandong Agricultural University, Taian 271018, China
| | - Jing Xu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, China
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Taian 271018, China
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63
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Menzel T, Meides N, Mauel A, Mansfeld U, Kretschmer W, Kuhn M, Herzig EM, Altstädt V, Strohriegl P, Senker J, Ruckdäschel H. Degradation of low-density polyethylene to nanoplastic particles by accelerated weathering. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 826:154035. [PMID: 35217061 DOI: 10.1016/j.scitotenv.2022.154035] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/25/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
When plastics enter the environment, they are exposed to abiotic and biotic impacts, resulting in degradation and the formation of micro- and nanoplastic. Microplastic is ubiquitous in every environmental compartment. Nevertheless, the underlying degradation processes are not yet fully understood. Here, we studied the abiotic degradation of commonly used semi-crystalline, low-density polyethylene (LDPE) in a long-term accelerated weathering experiment combining several macro- and microscopic methods. Based on our observations, the degradation of LDPE proceeds in three stages. Initially, LDPE objects are prone to abrasion, followed by a period of surface cracking. A large number of secondary particles with a high degree of crystallinity are formed, with sizes down to the nanometer scale. These particles consist of highly polar oligomers leading to agglomeration in the final stage. We therefore suppose that weathered microplastic and nanoplastic particles will attach to colloidal environmental matter. This offers an explanation for the absence of free nanoplastic particles in natural samples.
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Affiliation(s)
- Teresa Menzel
- Department of Polymer Engineering, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Nora Meides
- Department of Macromolecular Chemistry I, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Anika Mauel
- Department of Inorganic Chemistry III, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Ulrich Mansfeld
- Bavarian Polymer Institute, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Winfried Kretschmer
- Department of Inorganic Chemistry II, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Meike Kuhn
- Dynamics and Structure Formation - Herzig Group, Institute of Physics, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Eva M Herzig
- Dynamics and Structure Formation - Herzig Group, Institute of Physics, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Volker Altstädt
- Department of Polymer Engineering, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Peter Strohriegl
- Department of Macromolecular Chemistry I, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Jürgen Senker
- Department of Inorganic Chemistry III, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany.
| | - Holger Ruckdäschel
- Department of Polymer Engineering, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany.
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64
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Delangiz N, Aliyar S, Pashapoor N, Nobaharan K, Asgari Lajayer B, Rodríguez-Couto S. Can polymer-degrading microorganisms solve the bottleneck of plastics' environmental challenges? CHEMOSPHERE 2022; 294:133709. [PMID: 35074325 DOI: 10.1016/j.chemosphere.2022.133709] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/27/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
Increasing world population and industrial activities have enhanced anthropogenic pollution, plastic pollution being especially alarming. So, plastics should be recycled and/or make them biodegradable. Chemical and physical remediating methods are usually energy consuming and costly. In addition, they are not ecofriendly and usually produce toxic byproducts. Bioremediation is a proper option as it is cost-efficient and environmentally friendly. Plastic production and consumption are increasing daily, and, as a consequence, more microorganisms are exposed to these nonbiodegradable polymers. Therefore, investigating new efficient microorganisms and increasing the knowledge about their biology can pave the way for efficient and feasible plastic bioremediation processes. In this sense, omics, systems biology and bioinformatics are three important fields to analyze the biodegradation pathways in microorganisms. Based on the above-mentioned technologies, researchers can engineer microorganisms with specific desired properties to make bioremediation more efficient.
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Affiliation(s)
- Nasser Delangiz
- Department of Plant Biotechnology and Breeding, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.
| | - Sajad Aliyar
- Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Neda Pashapoor
- Department of Soil Science, Faculty of Agriculture, Urmia University, Urmia, Iran
| | | | - Behnam Asgari Lajayer
- Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.
| | - Susana Rodríguez-Couto
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, FI-50130 Mikkeli, Finland
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65
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Ren SY, Ni HG. A method for measuring the emissions of in situ agricultural plastic film microplastics by ultraviolet and mechanical abrasion. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 819:152041. [PMID: 34856262 DOI: 10.1016/j.scitotenv.2021.152041] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/24/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
Agricultural plastic film (APF) is widely used in modern agriculture. Under natural environmental conditions, the structure, surface properties and mechanical properties of APFs change because of sunlight, wind and other factors and gradually break into debris, resulting in the generation of microplastics (MPs). Studies have reported that the MPs concentration in soil is positively correlated with the use intensity and duration of APFs. Unfortunately, to the best of our knowledge, no method to measure the emissions of in situ APFs has been developed. In this study, the effects of mechanical abrasion driven by wind on MPs fragmentation by polyethylene (PE) and polyvinyl chloride (PVC) APFs with the increase of exposure time were investigated. Meanwhile, based on the release rate model of PS fragmented MPs under natural sunlight, a modified model to quantify the effect of ultraviolet (UV) radiation exposure duration on the production of APF fragmented MPs was developed. Based on these models, the amount of MPs produced from APFs in farmland in China was estimated. The national annual MPs mass emissions from APFs in agricultural soil were approximately 5 × 104 to 6.8 × 104 tons in 2018 due to wind and 6.5 × 103 tons due to sunlight, and the total emission level due to both wind and sunlight was 5.1 × 104 to 7.0 × 104 tons. Compared with that of wind, the contribution of UV radiation to MPs emission is smaller. Our estimates are comparable to data reported in previous studies, indicating that our models have good practical applications and are of great significance for predicting MPs production from APFs in farmland.
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Affiliation(s)
- Shu-Yan Ren
- School of Urban Planning and Design, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Hong-Gang Ni
- School of Urban Planning and Design, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
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66
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Ren X, Yin S, Wang L, Tang J. Microplastics in plant-microbes-soil system: A review on recent studies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 816:151523. [PMID: 34748830 DOI: 10.1016/j.scitotenv.2021.151523] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/17/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
Microplastics (MPs) and nanoplastics (NPs) have been widely studied, mostly focusing on the methods of separation, detection, and adsorption or the ecological effects in aquatic ecosystems. When different sources and types of MPs/NPs enter the soil, they can affect the biogeochemical cycle in terms of the direct impacts on soil physicochemical properties and soil organisms, and the indirect impact on soil biota through changes in soil material cycling. To date, a few studies have focused on the effects of MPs/NPs on soil ecosystems, including soil properties, microbial communities, soil fauna, and plants, as well as the potential or affirmed correlations among them. In this review, we summarized the recent literature on soil MPs/NPs focusing on their types, sources, separation, and ecological impacts on soil properties, microbes, and plants. We attempted to establish an overall relationship between MPs/NPs and soil plant system. Based on existing studies, we also highlight the research gaps and propose several directions for future studies.
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Affiliation(s)
- Xinwei Ren
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, 800 Dongchuan Rd, Shanghai 200240, China; Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
| | - Shan Yin
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, 800 Dongchuan Rd, Shanghai 200240, China; Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
| | - Lan Wang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Jingchun Tang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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67
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Wang Y, Davey CJE, van der Maas K, van Putten RJ, Tietema A, Parsons JR, Gruter GJM. Biodegradability of novel high T g poly(isosorbide-co-1,6-hexanediol) oxalate polyester in soil and marine environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 815:152781. [PMID: 34990691 DOI: 10.1016/j.scitotenv.2021.152781] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/05/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
In order to reduce the plastic accumulation in the environment, biodegradable plastics are attracting interest in the plastics market. However, the low thermal stability of most amorphous biodegradable polymers limits their application. With the aim of combining high glass transition temperature (Tg), with good (marine) biodegradation a family of novel fully renewable poly(isosorbide-co-diol) oxalate (PISOX-diol) copolyesters was recently developed. In this study, the biodegradability of a representative copolyester, poly(isosorbide-co-1,6-hexanediol) oxalate (PISOX-HDO), with 75/25 mol ratio IS/HDO was evaluated at ambient temperature (25 °C) in soil and marine environment by using a Respicond system with 95 parallel reactors, based on the principle of frequently monitoring CO2 evolution. During 50 days incubation in soil and seawater, PISOX-HDO mineralised faster than cellulose. The ready biodegradability of PISOX-HDO is related to the relatively fast non-enzymatic hydrolysis of polyoxalates. To study the underlying mechanism of PISOX-HDO biodegradation, the non-enzymatic hydrolysis of PISOX-HDO and the biodegradation of the monomers in soil were also investigated. Complete hydrolysis was obtained in approximately 120 days (tracking the formation of hydrolysis products via 1H NMR). It was also shown that (enzymatic) hydrolysis to the constituting monomers is the rate-determining step in this biodegradation mechanism. These monomers can subsequently be consumed and mineralised by (micro)organisms in the environment much faster than the polyesters. The combination of high Tg (>100 °C) and fast biodegradability is quite unique and makes this PISOX-HDO copolyester ideal for short term applications that demand strong mechanical and physical properties.
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Affiliation(s)
- Yue Wang
- van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands; Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands.
| | - Charlie J E Davey
- van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands; Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands.
| | - Kevin van der Maas
- van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands.
| | | | - Albert Tietema
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands.
| | - John R Parsons
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands.
| | - Gert-Jan M Gruter
- van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands; Avantium Support BV, Zekeringstraat 29, 1014 BV Amsterdam, the Netherlands.
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68
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Peñas MI, Pérez-Camargo RA, Hernández R, Müller AJ. A Review on Current Strategies for the Modulation of Thermomechanical, Barrier, and Biodegradation Properties of Poly (Butylene Succinate) (PBS) and Its Random Copolymers. Polymers (Basel) 2022; 14:1025. [PMID: 35267848 PMCID: PMC8914744 DOI: 10.3390/polym14051025] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/23/2022] [Accepted: 03/01/2022] [Indexed: 02/01/2023] Open
Abstract
The impact of plastics on the environment can be mitigated by employing biobased and/or biodegradable materials (i.e., bioplastics) instead of the traditional "commodities". In this context, poly (butylene succinate) (PBS) emerges as one of the most promising alternatives due to its good mechanical, thermal, and barrier properties, making it suitable for use in a wide range of applications. Still, the PBS has some drawbacks, such as its high crystallinity, which must be overcome to position it as a real and viable alternative to "commodities". This contribution covers the actual state-of-the-art of the PBS through different sections. The first section reviews the different synthesis routes, providing a complete picture regarding the obtained molecular weights and the greener alternatives. Afterward, we examine how different strategies such as random copolymerization and the incorporation of fillers can effectively modulate PBS properties to satisfy the needs for different applications. The impact of these strategies is evaluated in the crystallization behavior, crystallinity, mechanical and barrier properties, and biodegradation. The biodegradation is carefully analyzed, highlighting the wide variety of methodologies existing in the literature to measure PBS degradation through different routes (hydrolytic, enzymatic, and soil).
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Affiliation(s)
- Mario Iván Peñas
- Institute of Polymer Science and Technology ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain;
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
| | - Ricardo Arpad Pérez-Camargo
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
| | - Rebeca Hernández
- Institute of Polymer Science and Technology ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain;
| | - Alejandro J. Müller
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
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69
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Jiang X, Yang Y, Wang Q, Liu N, Li M. Seasonal variations and feedback from microplastics and cadmium on soil organisms in agricultural fields. ENVIRONMENT INTERNATIONAL 2022; 161:107096. [PMID: 35074634 DOI: 10.1016/j.envint.2022.107096] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/06/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Plastic film mulching is an important agricultural technology that plays a critical role in increasing crop yield and maintaining soil moisture. However, long-term coverage and untimely recovery lead to a large amount of plastic residues in soils. This decomposes into smaller plastics over time, which can reduce sowing quality, destroy the soil structure, and have adverse effects on soil organisms. In this study, the seasonal variations and correlations of microplastics and cadmium (Cd) in Wuxi farmland soils of Taihu Lake, China, were investigated in the spring and winter. The microplastics were mainly in the form of films, fibers, and debris and were mainly transparent and black in color. Microplastic abundance reached 890 particles/kg soil, with the majority of microplastics (>72.5%) being 0-500 μm. Polyethylene microplastics were the main polymers, accounting for >54.65%. In addition, the abundance of soil microplastics in the winter was significantly correlated with Cd, indicating that microplastics and heavy metals present a risk of coexposure to soil organisms. Furthermore, the response of in situ earthworms to microplastic-Cd pollution revealed that microplastics can be used as a vector to transfer heavy metals in the soil environment and may accumulate in the bodies of soil organisms. Multiomics techniques demonstrated bacterial community structure dysbiosis and metabolic changes of in situ earthworms under microplastic heavy metal-contaminated soils. The abundance of microplastics in earthworm casts and intestines was higher than that in the soil samples. These results reveal the potential risks from microplastics entering the soil environment and heavy metal pollution in soil ecosystems.
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Affiliation(s)
- Xiaofeng Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yang Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Qian Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Na Liu
- Norwegian Research Center NORCE, Nygårdsgaten 112, 5008 Bergen, Norway
| | - Mei Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
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70
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Zhang Y, Ma J, O'Connor P, Zhu YG. Microbial communities on biodegradable plastics under different fertilization practices in farmland soil microcosms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:152184. [PMID: 34890659 DOI: 10.1016/j.scitotenv.2021.152184] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/28/2021] [Accepted: 11/30/2021] [Indexed: 06/13/2023]
Abstract
Plastic mulching is a common practice in agricultural systems and is often combined with fertilization. Biodegradable plastics (BPs) are becoming an alternative to non-biodegradable plastics (non-BPs) for soil mulching. However, the effects of fertilization on the microbial communities on BPs remain unclear. Here, we explored the responses of the plastisphere to different fertilization practices in soil-based microcosms containing three BPs: polylactic acid (PLA), poly (butylene succinate) (PBS), and poly (butylene-adipate-co-terephthalate) (PBAT), and one non-BP (low-density polyethylene, LDPE). The 16S and ITS rRNA gene-based Illumina sequencing method were used to identify the bacterial and fungal communities on the plastics and in the soils. Microbial community structure on BPs was significantly different from that in soils and on LDPE. The predicted functional profiles of bacteria on BPs, especially PBAT, were distinct from those in soils. The plastisphere communities on BPs were dominated by microbes adapted to access and utilize carbon sources compared with of the communities on LDPE. Application of manure increased the alpha diversity of bacterial communities on BPs but decreased it on LDPE. The structure of bacterial communities on BPs changed with the application of manure. Our research establishes the baseline dynamics of plastisphere communities on BPs in soils.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Ma
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, Ningbo Urban Environment Observation and Research Station-NUEORS, Institute of Urban Environment, Chinese Academy of Sciences, Ningbo 315800, China.
| | - Patrick O'Connor
- Centre for Global Food and Resources, University of Adelaide, Adelaide 5005, Australia
| | - Yong-Guan Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China
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Feng X, Wang Q, Sun Y, Zhang S, Wang F. Microplastics change soil properties, heavy metal availability and bacterial community in a Pb-Zn-contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127364. [PMID: 34879561 DOI: 10.1016/j.jhazmat.2021.127364] [Citation(s) in RCA: 162] [Impact Index Per Article: 81.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/22/2021] [Accepted: 09/25/2021] [Indexed: 05/06/2023]
Abstract
Microplastics (MPs) co-occur widely with diverse contaminants in soils. However, few data are available on their impacts on soil chemical and microbial properties of heavy metal-contaminated soils. For the first time, we investigated the changes in chemical and microbial properties of a Pb-Zn-contaminated soil as induced by six different MPs, including polyethylene (PE), polystyrene (PS), polyamide (PA), polylactic acid (PLA), polybutylene succinate (PBS), and polyhydroxybutyrate (PHB), at two doses (0.2% and 2%, w/w). After 120 days of soil incubation, significant changes were observed in soil pH, dissolved organic carbon (DOC), NH4+-N, NO3--N, available P, the availability of Zn and Pb, and the activities of soil enzymes. Overall, MPs especially at the dose of 2% decreased the richness and diversity of bacterial communities and altered microbial community composition, causing special enrichments of specific taxa. MPs increased predicted functional genes involved in xenobiotics biodegradation and metabolism. Generally, impacts were dependent on MPs' type and dose. Changes in soil properties and heavy metal availability had significant correlations with bacterial community diversity and composition. Our findings imply that MPs co-occurring with heavy metals may change metal mobility, soil fertility, and microbial diversity and functions, thus causing a potential threat to soil ecosystem multifunctionality.
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Affiliation(s)
- Xueying Feng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China
| | - Quanlong Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China
| | - Yuhuan Sun
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China
| | - Shuwu Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China
| | - Fayuan Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China.
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72
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Alimi OS, Claveau-Mallet D, Kurusu RS, Lapointe M, Bayen S, Tufenkji N. Weathering pathways and protocols for environmentally relevant microplastics and nanoplastics: What are we missing? JOURNAL OF HAZARDOUS MATERIALS 2022; 423:126955. [PMID: 34488100 DOI: 10.1016/j.jhazmat.2021.126955] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/03/2021] [Accepted: 08/17/2021] [Indexed: 05/14/2023]
Abstract
To date, most studies of microplastics have been carried out with pristine particles. However, most plastics in the environment will be aged to some extent; hence, understanding the effects of weathering and accurately mimicking weathering processes are crucial. By using microplastics that lack environmental relevance, we are unable to fully assess the risks associated with microplastic pollution in the environment. Emerging studies advocate for harmonization of experimental methods, however, the subject of reliable weathering protocols for realistic assessment has not been addressed. In this work, we critically analysed the current knowledge regarding protocols used for generating environmentally relevant microplastics and leachates for effects studies. We present the expected and overlooked weathering pathways that plastics will undergo throughout their lifecycle. International standard weathering protocols developed for polymers were critically analysed for their appropriateness for use in microplastics research. We show that most studies using weathered microplastics involve sorption experiments followed by toxicity assays. The most frequently reported weathered plastic types in the literature are polystyrene>polyethylene>polypropylene>polyvinyl chloride, which does not reflect the global plastic production and plastic types detected globally. Only ~10% of published effect studies have used aged microplastics and of these, only 12 use aged nanoplastics. This highlights the need to embrace the use of environmentally relevant microplastics and to pay critical attention to the appropriateness of the weathering methods adopted moving forward. We advocate for quality reporting of weathering protocols and characterisation for harmonization and reproducibility across different research efforts.
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Affiliation(s)
- Olubukola S Alimi
- Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Dominique Claveau-Mallet
- Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada; Department of Civil, Geological and Mining Engineering, Polytechnique Montreal, Montreal, H3C 3A7, Canada
| | - Rafael S Kurusu
- Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Mathieu Lapointe
- Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Stéphane Bayen
- Department of Food Science and Agricultural Chemistry, McGill University, Lakeshore, Ste Anne de Bellevue, 21111, Canada
| | - Nathalie Tufenkji
- Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada.
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73
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Ju Z, Du X, Feng K, Li S, Gu S, Jin D, Deng Y. The Succession of Bacterial Community Attached on Biodegradable Plastic Mulches During the Degradation in Soil. Front Microbiol 2021; 12:785737. [PMID: 35046914 PMCID: PMC8762578 DOI: 10.3389/fmicb.2021.785737] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/26/2021] [Indexed: 11/17/2022] Open
Abstract
Despite the increasing application of biodegradable plastic mulches (BDMs) in agriculture, the colonization and succession of the attached microbial community on BDMs during their degradation processes remain poorly characterized. Here, we buried four types of commonly used BDMs, including pure polylactic acid (PLA), pure polybutylene adipate terephthalate (PBAT), and two mixtures of PLA and PBAT (85:15 and 15:85 w/w), and one classic polyethylene (PE) mulch in soil for 5 months. Both plastic components and incubation time significantly shaped the β-diversities of microbiota on the plastic mulches (p < 0.001). Meanwhile, the microbial compositions and community structures on BDMs were significantly different from PE mulch, and when excluding PE mulch, the microbiota varied more with time than by the composition of the four BDMs. The orders Burkholderiales and Pseudonocardiales were dominant on most BDMs across different time points. The genus Ramlibacter was revealed as a common biomarker for both PLA and PBAT by random-forest model, and all biomarkers for the BDMs belonged to the dominant order Burkholderiales. In addition, degradation-related and pathogen-related functional taxa were enriched in all mulches among all 40 functional groups, while surprisingly, potential pathogens were detected at higher levels on BDMs than PE. For community assembly on all mulches, the drift and dispersal processes played more important roles than selection, and in particular, the contribution of stochastic drift increased during the degradation process of BDMs while selection decreased, while the opposite trend was observed with PE mulch. Overall, our results demonstrated some degradation species and pathogens were specifically enriched on BDMs, though stochastic processes also had important impacts on the community assembly. It suggested that, similar to conventional plastic mulch, the increased usage of BDMs could lead to potential hazards to crops and human health.
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Affiliation(s)
- Zhicheng Ju
- CAS Key Laboratory for Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Xiongfeng Du
- CAS Key Laboratory for Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Kai Feng
- CAS Key Laboratory for Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Shuzhen Li
- CAS Key Laboratory for Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Songsong Gu
- CAS Key Laboratory for Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Decai Jin
- CAS Key Laboratory for Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Ye Deng
- CAS Key Laboratory for Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
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74
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Wang Y, Murcia Valderrama MA, van Putten RJ, Davey CJE, Tietema A, Parsons JR, Wang B, Gruter GJM. Biodegradation and Non-Enzymatic Hydrolysis of Poly(Lactic- co-Glycolic Acid) (PLGA12/88 and PLGA6/94). Polymers (Basel) 2021; 14:polym14010015. [PMID: 35012037 PMCID: PMC8747309 DOI: 10.3390/polym14010015] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/17/2021] [Accepted: 12/18/2021] [Indexed: 11/16/2022] Open
Abstract
The predicted growth in plastic demand and the targets for global CO2 emission reductions require a transition to replace fossil-based feedstock for polymers and a transition to close- loop recyclable, and in some cases to, biodegradable polymers. The global crisis in terms of plastic littering will furthermore force a transition towards materials that will not linger in nature but will degrade over time in case they inadvertently end up in nature. Efficient systems for studying polymer (bio)degradation are therefore required. In this research, the Respicond parallel respirometer was applied to polyester degradation studies. Two poly(lactic-co-glycolic acid) copolyesters (PLGA12/88 and PLGA6/94) were tested and shown to mineralise faster than cellulose over 53 days at 25 °C in soil: 37% biodegradation for PLGA12/88, 53% for PLGA6/94, and 30% for cellulose. The corresponding monomers mineralised much faster than the polymers. The methodology presented in this article makes (bio)degradability studies as part of a materials development process economical and, at the same time, time-efficient and of high scientific quality. Additionally, PLGA12/88 and PLGA6/94 were shown to non-enzymatically hydrolyse in water at similar rates, which is relevant for both soil and marine (bio)degradability.
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Affiliation(s)
- Yue Wang
- Van ‘t Hoff Institute for Molecular Sciences (HIMS), Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (Y.W.); (M.A.M.V.); (R.-J.v.P.); (C.J.E.D.)
- Institute for Biodiversity and Ecosystem Dynamics (IBED), Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (A.T.); (J.R.P.)
| | - Maria A. Murcia Valderrama
- Van ‘t Hoff Institute for Molecular Sciences (HIMS), Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (Y.W.); (M.A.M.V.); (R.-J.v.P.); (C.J.E.D.)
| | - Robert-Jan van Putten
- Van ‘t Hoff Institute for Molecular Sciences (HIMS), Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (Y.W.); (M.A.M.V.); (R.-J.v.P.); (C.J.E.D.)
- Avantium Support BV, Zekeringstraat 29, 1014 BV Amsterdam, The Netherlands;
| | - Charlie J. E. Davey
- Van ‘t Hoff Institute for Molecular Sciences (HIMS), Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (Y.W.); (M.A.M.V.); (R.-J.v.P.); (C.J.E.D.)
- Institute for Biodiversity and Ecosystem Dynamics (IBED), Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (A.T.); (J.R.P.)
| | - Albert Tietema
- Institute for Biodiversity and Ecosystem Dynamics (IBED), Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (A.T.); (J.R.P.)
| | - John R. Parsons
- Institute for Biodiversity and Ecosystem Dynamics (IBED), Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (A.T.); (J.R.P.)
| | - Bing Wang
- Avantium Support BV, Zekeringstraat 29, 1014 BV Amsterdam, The Netherlands;
| | - Gert-Jan M. Gruter
- Van ‘t Hoff Institute for Molecular Sciences (HIMS), Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (Y.W.); (M.A.M.V.); (R.-J.v.P.); (C.J.E.D.)
- Avantium Support BV, Zekeringstraat 29, 1014 BV Amsterdam, The Netherlands;
- Correspondence:
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75
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Ren SY, Kong SF, Ni HG. Contribution of mulch film to microplastics in agricultural soil and surface water in China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118227. [PMID: 34582919 DOI: 10.1016/j.envpol.2021.118227] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/03/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Agricultural mulch film (AMF) is deemed an important source of microplastics (MPs) in agricultural soil (AS). However, quantitating the contribution of AMFs to MPs in farmland soil and surface water remains a considerable challenge to date. In the present study, a basic framework was developed to address these concerns. First, the concentrations of MPs in soil derived from AMF abrasion (CMP) and the total MPs from all sources in AS (CTMP) were measured. Then, the ratios of CMP to CTMP, i.e., the contribution of AMFs to MPs in AS, were calculated. The contribution of AMFs to MPs in surface water via soil erosion was calculated based on CTMP values, the ratios of CMP to CTMP, soil erosion intensities (SEIs), and farmland areas. Furthermore, the potential contribution of soil erosion to MPs in the ocean was estimated. In China, the inventory of MPs in surface AS in 2018 ranged from 4.9 × 106 to 1.0 × 107 tons according to our results. AMFs contributed 10%-30% of the CTMP with certainties of 60-95%. Assuming that all MPs in AS can be exhaustively transferred to surface water via soil erosion, the national mass transfer amount of MPs (MTTMP) from AS to surface water reached 1.2 × 105-2.2 × 105 tons (∼2% of the inventory of MPs in the AS of China); the fluxes of MPs into the ocean from AS were 3.4 × 104-6.6 × 104 tons, assuming that all MPs in the AS of coastal provinces enter the ocean. It is likely that AMFs contributed 10%-30% MTTMP and fluxes of MPs to the ocean according to the ratios of CMP to CTMP. Apparently, approximately 30% of the national MTTMP (i.e., the rate of MP flux to the ocean to MTTMP) was input to the ocean.
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Affiliation(s)
- Shu-Yan Ren
- School of Urban Planning and Design, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Si-Fang Kong
- School of Traffic & Environment, Shenzhen Institute of Information Technology, Shenzhen, 518172, China
| | - Hong-Gang Ni
- School of Urban Planning and Design, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
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76
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Rauschendorfer RJ, Whitham KM, Summer S, Patrick SA, Pierce AE, Sefi-Cyr H, Tadjiki S, Kraft MD, Emory SR, Rider DA, Montaño MD. Development and Application of Nanoparticle-Nanopolymer Composite Spheres for the Study of Environmental Processes. FRONTIERS IN TOXICOLOGY 2021; 3:752296. [PMID: 35295116 PMCID: PMC8915914 DOI: 10.3389/ftox.2021.752296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/09/2021] [Indexed: 11/15/2022] Open
Abstract
Plastics have long been an environmental contaminant of concern as both large-scale plastic debris and as micro- and nano-plastics with demonstrated wide-scale ubiquity. Research in the past decade has focused on the potential toxicological risks posed by microplastics, as well as their unique fate and transport brought on by their colloidal nature. These efforts have been slowed by the lack of analytical techniques with sufficient sensitivity and selectivity to adequately detect and characterize these contaminants in environmental and biological matrices. To improve analytical analyses, microplastic tracers are developed with recognizable isotopic, metallic, or fluorescent signatures capable of being identified amidst a complex background. Here we describe the synthesis, characterization, and application of a novel synthetic copolymer nanoplastic based on polystyrene (PS) and poly(2-vinylpyridine) (P2VP) intercalated with gold, platinum or palladium nanoparticles that can be capped with different polymeric shells meant to mimic the intended microplastic. In this work, particles with PS and polymethylmethacrylate (PMMA) shells are used to examine the behavior of microplastic particles in estuarine sediment and coastal waters. The micro- and nanoplastic tracers, with sizes between 300 and 500 nm in diameter, were characterized using multiple physical, chemical, and colloidal analysis techniques. The metallic signatures of the tracers allow for quantification by both bulk and single-particle inductively-coupled plasma mass spectrometry (ICP-MS and spICP-MS, respectively). As a demonstration of environmental applicability, the tracers were equilibrated with sediment collected from Bellingham Bay, WA, United States to determine the degree to which microplastics bind and sink in an estuary based of grain size and organic carbon parameters. In these experiments, between 80 and 95% of particles were found to associate with the sediment, demonstrative of estuaries being a major anticipated sink for these contaminants. These materials show considerable promise in their versatility, potential for multiplexing, and utility in studying micro- and nano-plastic transport in real-world environments.
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Affiliation(s)
- Robert J. Rauschendorfer
- Department of Environmental Sciences, Western Washington University, Bellingham, WA, United States
| | - Kyle M. Whitham
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - Star Summer
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - Samantha A. Patrick
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - Aliandra E. Pierce
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - Haley Sefi-Cyr
- Department of Environmental Sciences, Western Washington University, Bellingham, WA, United States
| | - Soheyl Tadjiki
- Postnova Analytics Inc., Salt Lake City, UT, United States
| | - Michael D. Kraft
- Scientific Technical Services, Western Washington University, Bellingham, WA, United States
| | - Steven R. Emory
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - David A. Rider
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
- Department of Engineering and Design, Western Washington University, Bellingham, WA, United States
| | - Manuel D. Montaño
- Department of Environmental Sciences, Western Washington University, Bellingham, WA, United States
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77
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Wang K, Sun X, Long B, Li F, Yang C, Chen J, Ma C, Xie D, Wei Y. Green Production of Biodegradable Mulch Films for Effective Weed Control. ACS OMEGA 2021; 6:32327-32333. [PMID: 34870052 PMCID: PMC8638303 DOI: 10.1021/acsomega.1c05725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
Biodegradable mulch films are supposed to be a prospective substitute for poly(ethylene)-based mulch films in the field of sustainable agriculture. Among them, weeding mulch films play significant roles. However, the large-scale production of weeding mulch films through the traditional high-temperature film blowing process would often cause serious pollution due to the diffusion of herbicides in the surroundings. Herein, a green and facile coating approach is developed to produce biodegradable weeding mulch films. In our strategy, a herbicide was added into a poly(vinyl alcohol) aqueous solution with dopamine in it. After the subsequent low-temperature coating procedure on a biodegradable poly(butylene adipate-co-terephthalate)/poly(lactic acid) film, effective weeding mulch films were obtained. The morphology, structure, and mechanical property test results revealed the robustness and stability of the coating, and the pot experiments clearly demonstrated the effective weed suppression ability of the obtained weeding films. Evidently, this strategy to produce biodegradable weeding mulch films is green and facile, exhibiting great prospects in the large-scale production of weeding mulch films and other functional biodegradable mulch films.
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Affiliation(s)
- Ke Wang
- Institute
of Bioengineering and Guangdong Biomaterials Engineering Technology
Research Center, Guangdong Academy of Sciences, Guangzhou 510316, China
- Department
of Chemistry and the Tsinghua Center for Frontier Polymer Research, Tsinghua University, Beijing 100084, China
| | - Xiaoyan Sun
- Institute
of Bioengineering and Guangdong Biomaterials Engineering Technology
Research Center, Guangdong Academy of Sciences, Guangzhou 510316, China
| | - Bibo Long
- Institute
of Bioengineering and Guangdong Biomaterials Engineering Technology
Research Center, Guangdong Academy of Sciences, Guangzhou 510316, China
| | - Fayong Li
- Institute
of Bioengineering and Guangdong Biomaterials Engineering Technology
Research Center, Guangdong Academy of Sciences, Guangzhou 510316, China
| | - Chong Yang
- Institute
of Bioengineering and Guangdong Biomaterials Engineering Technology
Research Center, Guangdong Academy of Sciences, Guangzhou 510316, China
| | - Junjia Chen
- Institute
of Bioengineering and Guangdong Biomaterials Engineering Technology
Research Center, Guangdong Academy of Sciences, Guangzhou 510316, China
| | - Chunping Ma
- Guangdong-HongKong
Joint Laboratory for New Textile Materials, School of Textile Materials
and Engineering, Wuyi University, Jiangmen 529020, China
| | - Dong Xie
- Institute
of Bioengineering and Guangdong Biomaterials Engineering Technology
Research Center, Guangdong Academy of Sciences, Guangzhou 510316, China
| | - Yen Wei
- Department
of Chemistry and the Tsinghua Center for Frontier Polymer Research, Tsinghua University, Beijing 100084, China
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78
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Purahong W, Wahdan SFM, Heinz D, Jariyavidyanont K, Sungkapreecha C, Tanunchai B, Sansupa C, Sadubsarn D, Alaneed R, Heintz-Buschart A, Schädler M, Geissler A, Kressler J, Buscot F. Back to the Future: Decomposability of a Biobased and Biodegradable Plastic in Field Soil Environments and Its Microbiome under Ambient and Future Climates. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:12337-12351. [PMID: 34486373 DOI: 10.1021/acs.est.1c02695] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Decomposition by microorganisms of plastics in soils is almost unexplored despite the fact that the majority of plastics released into the environment end up in soils. Here, we investigate the decomposition process and microbiome of one of the most promising biobased and biodegradable plastics, poly(butylene succinate-co-adipate) (PBSA), under field soil conditions under both ambient and future predicted climates (for the time between 2070 and 2100). We show that the gravimetric and molar mass of PBSA is already largely reduced (28-33%) after 328 days under both climates. We provide novel information on the PBSA microbiome encompassing the three domains of life: Archaea, Bacteria, and Eukarya (fungi). We show that PBSA begins to decompose after the increase in relative abundances of aquatic fungi (Tetracladium spp.) and nitrogen-fixing bacteria. The PBSA microbiome is distinct from that of surrounding soils, suggesting that PBSA serves as a new ecological habitat. We conclude that the microbial decomposition process of PBSA in soil is more complex than previously thought by involving interkingdom relationships, especially between bacteria and fungi.
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Affiliation(s)
- Witoon Purahong
- Department of Soil Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, Halle (Saale) D-06120, Germany
| | - Sara Fareed Mohamed Wahdan
- Department of Soil Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, Halle (Saale) D-06120, Germany
- Department of Botany, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Daniel Heinz
- Department of Chemistry, Martin Luther University Halle-Wittenberg, Halle (Saale) D-06099, Germany
| | - Katalee Jariyavidyanont
- Center of Engineering Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale) D-06099, Germany
| | - Chanita Sungkapreecha
- Center of Engineering Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale) D-06099, Germany
| | - Benjawan Tanunchai
- Department of Soil Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, Halle (Saale) D-06120, Germany
| | - Chakriya Sansupa
- Department of Soil Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, Halle (Saale) D-06120, Germany
| | - Dolaya Sadubsarn
- Department of Soil Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, Halle (Saale) D-06120, Germany
| | - Razan Alaneed
- Department of Chemistry, Martin Luther University Halle-Wittenberg, Halle (Saale) D-06099, Germany
| | - Anna Heintz-Buschart
- Department of Soil Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, Halle (Saale) D-06120, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig D-04103, Germany
| | - Martin Schädler
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig D-04103, Germany
- Department of Community Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, Halle (Saale) D-06120, Germany
| | - Andreas Geissler
- Department of Macromolecular Chemistry and Paper Chemistry, Technical University of Darmstadt, Darmstadt D-64287, Germany
| | - Joerg Kressler
- Department of Chemistry, Martin Luther University Halle-Wittenberg, Halle (Saale) D-06099, Germany
| | - François Buscot
- Department of Soil Ecology, UFZ-Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, Halle (Saale) D-06120, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig D-04103, Germany
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79
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Zhang X, Li Y, Ouyang D, Lei J, Tan Q, Xie L, Li Z, Liu T, Xiao Y, Farooq TH, Wu X, Chen L, Yan W. Systematical review of interactions between microplastics and microorganisms in the soil environment. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126288. [PMID: 34102358 DOI: 10.1016/j.jhazmat.2021.126288] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/28/2021] [Accepted: 05/30/2021] [Indexed: 06/12/2023]
Abstract
Terrestrial ecosystems are widely contaminated by microplastics due to extensive usage and poor handling of plastic materials, but the subsequent fate and remediate strategy of these pollutants are far from fully understood. In soil environments, microplastics pose a potential threat to the survival, growth, and reproduction of soil microbiota that in turn threaten the biodiversity, function, and services of terrestrial ecosystems. Meanwhile, microorganisms are sensitive to microplastics due to the adaptability to changes in substrates and soil properties. Through the metabolic and mineralization processes, microorganisms are also crucial participator to the plastic biodegradation. In this review, we present current knowledges and research results of interactions between microplastics and microorganisms (both fungi and bacteria) in soil environments and mainly discuss the following: (1) effects of microplastics on microbial habitats via changes in soil physical, chemical, and biological properties; (2) effects of microplastics on soil microbial communities and functions; and (3) soil microbial-mediated plastic degradation with the likely mechanisms and potential remediation strategies. We aim to analyze the mechanisms driving these interactions and subsequent ecological effects, propose future directives for the study of microplastic in soils, and provide valuable information on the plastic bioremediation in contaminated soils.
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Affiliation(s)
- Xuyuan Zhang
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China
| | - Yong Li
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China; Laboratory of Urban Forest Ecology of Hunan Province, Changsha 410004, China.
| | - Dan Ouyang
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Junjie Lei
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Qianlong Tan
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Lingli Xie
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Ziqian Li
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Ting Liu
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yunmu Xiao
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Taimoor Hassan Farooq
- National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China; Bangor College China, a joint unit of Bangor University, Wales, UK and Central South University of Forestry and Technology, Changsha 410004, China
| | - Xiaohong Wu
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China; Laboratory of Urban Forest Ecology of Hunan Province, Changsha 410004, China
| | - Liang Chen
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China; Laboratory of Urban Forest Ecology of Hunan Province, Changsha 410004, China
| | - Wende Yan
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China; Laboratory of Urban Forest Ecology of Hunan Province, Changsha 410004, China.
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80
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Wang Z, Li M, Flury M, Schaeffer SM, Chang Y, Tao Z, Jia Z, Li S, Ding F, Wang J. Agronomic performance of polyethylene and biodegradable plastic film mulches in a maize cropping system in a humid continental climate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 786:147460. [PMID: 33971593 DOI: 10.1016/j.scitotenv.2021.147460] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/26/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
Plastic polyethylene mulch has been widely used in crop production, but also causes environmental pollution if plastic residues accumulate in soil. Biodegradable plastic mulches (BDM) are a potential solution to problems caused by polyethylene mulches, as BDMs are designed be tilled into the soil after the growing season and then biodegrade. However, the agronomic performance of BDMs still needs to be tested for comparison to polyethylene mulch. We carried out a two-year field experiment in 2018 and 2019 in a typical humid continental climate in Northeast China. Maize was planted in a ridge-furrow pattern, with mulching treatments consisting of no mulch (control), clear BDM, black BDM, clear polyethylene, and black polyethylene. Clear mulches increased soil temperature when compared to no mulch control treatments, while black mulches decreased or did not change soil temperature during the early growing season. Soil temperature and root morphology were similar between BDM and polyethylene mulches for a given type of plastic color. Maize yield did not differ across all the treatments. Maize protein, fat, N and P contents were generally higher for black BDM than other treatments, suggesting that maize quality benefited especially from black BDM. Overall, these results show that, in a humid continental climate, the agronomic performance of clear and black BDMs was equivalent to, or better than, that of polyethylene plastic mulches for maize production.
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Affiliation(s)
- Zhengyu Wang
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110086, China
| | - Mingxuan Li
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110086, China
| | - Markus Flury
- Department of Crop and Soil Sciences, Washington State University, Pullman 99164 and Puyallup, WA 98371, USA
| | - Sean M Schaeffer
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, USA
| | - Yi Chang
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110086, China
| | - Zhao Tao
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110086, China
| | - Zhaojie Jia
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110086, China
| | - Shitong Li
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110086, China
| | - Fan Ding
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110086, China.
| | - Jingkuan Wang
- College of Land and Environment, Shenyang Agricultural University, Shenyang 110086, China
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81
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Hayes DG. Enhanced end-of-life performance for biodegradable plastic mulch films through improving standards and addressing research gaps. Curr Opin Chem Eng 2021. [DOI: 10.1016/j.coche.2021.100695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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82
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Han Y, Teng Y, Wang X, Ren W, Wang X, Luo Y, Zhang H, Christie P. Soil Type Driven Change in Microbial Community Affects Poly(butylene adipate- co-terephthalate) Degradation Potential. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:4648-4657. [PMID: 33761242 DOI: 10.1021/acs.est.0c04850] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Biodegradable mulch films have been developed as a suitable alternative to conventional nondegradable polyethylene films. However, the key factors controlling the degradation speed of biodegradable mulch films in soils remain unclear. Here, we linked changes in the soil microbiome with the degradation rate of a promising biodegradable material poly(butylene adipate-co-terephthalate) (PBAT) in four soil types, a lou soil (LS), a fluvo-aquic soil (CS), a black soil (BS), and a red soil (RS), equivalent to Inceptisols (the first two soils), Mollisols, and Ultisols, using soil microcosms. The PBAT degradation rate differed with the soil type, with PBAT mineralization levels of 16, 9, 0.3, and 0.9% in LS, CS, BS, and RS, respectively, after 120 days. Metagenomic analysis showed that the microbial community in LS was more responsive to PBAT than the other three soils. PBAT hydrolase genes were significantly enriched in LS but were not significantly stimulated by PBAT in CS, BS, or RS. Several members of Proteobacteria were identified as novel potential degraders, and their enrichment extent was significantly positively correlated with PBAT degradation capacity. Overall, our results suggest that soil environments harbored a range of PBAT-degrading bacteria and the enrichment of potential degraders drives the fate of PBAT in the soils.
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Affiliation(s)
- Yujuan Han
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Ying Teng
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xia Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Wenjie Ren
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xiaomi Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yongming Luo
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Huimin Zhang
- Shanghai Majorbio Bio-Pharm Technology Co., Ltd., Shanghai 201318, China
| | - Peter Christie
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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83
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Chen G, Cao L, Cao C, Zhao P, Li F, Xu B, Huang Q. Effective and Sustained Control of Soil-Borne Plant Diseases by Biodegradable Polyhydroxybutyrate Mulch Films Embedded with Fungicide of Prothioconazole. Molecules 2021; 26:762. [PMID: 33540718 PMCID: PMC7867224 DOI: 10.3390/molecules26030762] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 11/17/2022] Open
Abstract
Soil-borne diseases and plant rhizosphere nematode have caused many crop yield losses. Increased environmental awareness is leading to more restrictions on the use of certain fumigants and root irrigation methods due to their impact on human health and soil system. Therefore, it is necessary to find alternative treatments to maintain crop economic yields and environmental sustainability. In the present work, biodegradable antifungal mulches were prepared by blending poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (PHB) with fungicide of prothioconazole (PRO), which were used for effective and sustained control of soil-borne plant diseases. To reveal the application prospect of the PHB/PRO composite films in the management of soilborne plant diseases, some physical and biological properties were evaluated. The proper mulch film of PHB/PRO was assessed based on its mechanical and optical properties, while water solubility and the film micromorphology was further characterized. The release patterns of composite films under different pH levels were investigated. Moreover, the in vitro antifungal bioassay and pot experiment showed satisfactory bioactivity of the PHB/PRO films against Sclerotium rolfsii Sacc., a soil-borne disease in peanut fields. This study demonstrated that the biodegradable mulch films containing PRO fungicide are capable of inhibiting soil-borne plant pathogenic fungi effectively, and this facile but powerful strategy may find wide applicability in sustainable plant and horticulture protection.
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Affiliation(s)
- Ge Chen
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China; (G.C.); (C.C.); (P.Z.); (F.L.)
| | - Lidong Cao
- Henan Haonianjing Biological Development Co., Ltd., Yangjin Industrial Park, Jinshui District, Zhengzhou 450000, China;
| | - Chong Cao
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China; (G.C.); (C.C.); (P.Z.); (F.L.)
| | - Pengyue Zhao
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China; (G.C.); (C.C.); (P.Z.); (F.L.)
| | - Fengmin Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China; (G.C.); (C.C.); (P.Z.); (F.L.)
| | - Bo Xu
- Henan Haonianjing Biological Development Co., Ltd., Yangjin Industrial Park, Jinshui District, Zhengzhou 450000, China;
| | - Qiliang Huang
- Henan Haonianjing Biological Development Co., Ltd., Yangjin Industrial Park, Jinshui District, Zhengzhou 450000, China;
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84
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Wanner P. Plastic in agricultural soils - A global risk for groundwater systems and drinking water supplies? - A review. CHEMOSPHERE 2021; 264:128453. [PMID: 33038754 DOI: 10.1016/j.chemosphere.2020.128453] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Abstract
The global plastic contamination is one of the major challenges facing mankind as plastic is ubiquitously present in all environmental compartments. In contrast to freshwater and marine environments, plastic contamination of agricultural soils was only recently subject to investigations although it represents a significant amount (14%) of the global plastic pollution. Of concern is the vertical migration of plastic particles in agricultural soils and plastic-induced enhancement of pesticide transport towards underlying groundwater systems. To assess the risk of the large plastic inventory in agricultural soils for groundwater systems and drinking water supplies, this review critically synthesizes the current knowledge of the plastic mobility and plastic-pesticide interactions in agricultural soils, identifies future research directions and evaluates associated analytical challenges. The reviewed studies provide consistent evidence for vertical migration of plastic in agricultural soils towards aquifer systems, especially for sub-micrometer sized plastic particles, analogously to the well-known migration of natural particles in the sub-micrometer range (colloids). The reviewed investigations also showed that plastic changes the sorption behavior of pesticides in agricultural soils and enhances their transport towards underlying groundwater systems. Hence, the deposited plastic in agricultural soils likely poses a major risk for underlying aquifers and drinking water supplies that rely on groundwater resources below farmlands to be contaminated by plastic and pesticides. This demonstrates that improved regulatory measures are necessary regarding the general usage of plastic in the farming process to protect aquifers and drinking water supplies from plastic and pesticide contamination and to avoid a potential human health hazard.
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Affiliation(s)
- Philipp Wanner
- Department of Earth Sciences, University of Gothenburg, Guldhedsgatan 5A, 413 20, Gothenburg, Sweden.
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85
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Supanakorn G, Varatkowpairote N, Taokaew S, Phisalaphong M. Alginate as Dispersing Agent for Compounding Natural Rubber with High Loading Microfibrillated Cellulose. Polymers (Basel) 2021; 13:polym13030468. [PMID: 33535720 PMCID: PMC7867155 DOI: 10.3390/polym13030468] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 11/16/2022] Open
Abstract
Natural rubber (NR) reinforced with high loading of microfibrillated cellulose (MFC) was fabricated in the presence of sodium alginate as a thickening and dispersing agent in NR latex. The tensile strength and Young’s moduli of the 50% wt. MFC loading-NR composites were 13.6 and 1085.7 MPa, which were about 11.3- and 329-times enhanced compared with those of the neat NR film. The maximum elongation at 313.3% was obtained from 30% MFC loading, which was a 3.3-fold increase of that of the NR film. The thermal stability of MFC–NR films was slightly reduced, while the glass transition temperature remained unchanged at −64 °C. The MFC–NR films exhibited high water adsorption ability, toluene resistance, and biodegradability.
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Affiliation(s)
- Goragot Supanakorn
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (G.S.); (N.V.)
| | - Nanthaphak Varatkowpairote
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (G.S.); (N.V.)
| | - Siriporn Taokaew
- Department of Materials Science and Technology, School of Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan;
| | - Muenduen Phisalaphong
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (G.S.); (N.V.)
- Correspondence: ; Tel.: +66-2218-6875
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86
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Zhang T, Han W, Zhang C, Weng Y. Effect of chain extender and light stabilizer on the weathering resistance of PBAT/PLA blend films prepared by extrusion blowing. Polym Degrad Stab 2021. [DOI: 10.1016/j.polymdegradstab.2020.109455] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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87
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Serrano-Ruiz H, Martin-Closas L, Pelacho AM. Biodegradable plastic mulches: Impact on the agricultural biotic environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 750:141228. [PMID: 32871365 DOI: 10.1016/j.scitotenv.2020.141228] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 05/26/2023]
Abstract
The increasing use of plastic films for agricultural mulching continues worldwide. Mulching improves crop yield, decreases pesticide' inputs to the field, saves irrigation water and contributes to tackle the food demand for the growing world population. However, plastic mulching results in polyethylene residues that contaminate agricultural soils and contribute to the massive worldwide plastic pollution, a serious environmental concern. Biodegradable plastic mulches (BDM) have emerged as a promising alternative to alleviate polyethylene pollution. BDM, made of different polymers and compositions, are designed to biodegrade in situ, into the agricultural soil. Their use may entail environmental impacts for the agricultural system that deserve to be explored on the short and on the long-term. This review discusses emerging findings on the impact of BDM on agroecosystem organisms, with special emphasis on cultivated plants and on soil organisms. The relevance of the material composition is highlighted by some reports evidencing specific BDM to alter development of cultivated plant species and to modify soil microbiome on the short-term (spanning a few months); model organisms may also be affected. Long-term studies have not yet been attempted. In-depth studies focused on the effects of the diversity of BDM on agroecosystem organisms are urgently required to identify low-impact BDM materials and to guarantee advanced agriculture in a sustainable environment.
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Affiliation(s)
- Hadaly Serrano-Ruiz
- Department of Horticulture, Botany and Gardening, University of Lleida, Avda. Alcalde Rovira Roure 191, 25198 Lleida, Spain.
| | - Lluis Martin-Closas
- Department of Horticulture, Botany and Gardening, University of Lleida, Avda. Alcalde Rovira Roure 191, 25198 Lleida, Spain.
| | - Ana M Pelacho
- Department of Horticulture, Botany and Gardening, University of Lleida, Avda. Alcalde Rovira Roure 191, 25198 Lleida, Spain.
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88
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Feng S, Yue Y, Chen J, Zhou J, Li Y, Zhang Q. Biodegradation mechanism of polycaprolactone by a novel esterase MGS0156: a QM/MM approach. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:2332-2344. [PMID: 33146659 DOI: 10.1039/d0em00340a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nowadays micro-plastic pollution has become one of the most serious global environmental problems. A potential strategy in managing micro-plastic waste is enzyme-catalyzed degradation. MGS0156 is a hydrolase screened from environmental metagenomes, which can efficiently degrade commercial plastics such as polycaprolactone, polylactide, etc. Here a combined molecular dynamics, molecular mechanics Poisson-Boltzmann surface area, and quantum mechanics/molecular mechanism method was used to reveal the enzymatic depolymerization mechanism. By systematically analyzing the binding processes of nine oligomers (from a monomer to tetramer), we found that longer oligomers have relatively stronger binding energy. The degradation process involves two concerted elementary steps: triad-assisted nucleophilic attack and C-O bond cleavage. C-O bond cleavage is the rate determining step with an average barrier of 15.7 kcal mol-1, which is consistent with the experimentally determined kcat (1101 s-1, corresponds to 13.3 kcal mol-1). The electrostatic influence analysis of twenty amino acids highlights His231 and Asp237 as potential mutation targets for designing more efficient MGS0156 mutants.
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Affiliation(s)
- Shanshan Feng
- Environment Research Institute, Shandong University, Qingdao, 266200, P. R. China.
| | - Yue Yue
- Environment Research Institute, Shandong University, Qingdao, 266200, P. R. China.
| | - Jinfeng Chen
- Environment Research Institute, Shandong University, Qingdao, 266200, P. R. China.
| | - Jie Zhou
- Environment Research Institute, Shandong University, Qingdao, 266200, P. R. China.
| | - Yanwei Li
- Environment Research Institute, Shandong University, Qingdao, 266200, P. R. China.
| | - Qingzhu Zhang
- Environment Research Institute, Shandong University, Qingdao, 266200, P. R. China.
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89
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Sun Y, Ren X, Pan J, Zhang Z, Tsui TH, Luo L, Wang Q. Effect of microplastics on greenhouse gas and ammonia emissions during aerobic composting. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 737:139856. [PMID: 32563113 DOI: 10.1016/j.scitotenv.2020.139856] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to investigate the effect of polyethylene (PE), polyvinyl chloride (PVC) and polyhydroxyalkanoate (PHA) microplastics on greenhouse gas and ammonia emissions during 60 days composting. PE, PVC and PHA microplastics were respectively mixed with the cow manure; and a treatment without microplastics was used as the control. Compared to the control, PE and PVC inhibited organic matter degradation. Conversely, PHA accelerated temperature increases and organic matter degradation. Meanwhile, PE and PHA aggravated CH4 and NH3 emissions by 7.9-9.1% and 20.9-33.9%, respectively. PVC decreased CH4 and NH3 emissions by 6.6% and 30.4%, respectively. Additionally, the N2O emissions of the PE and PVC treatments were higher than those of the control while PHA decreased N2O emissions by 11.8%. Furthermore, PE, PVC and PHA microplastics reduced the NO3--N contents and compost maturity. The results indicated that microplastics reduced compost quality while the effects of microplastics on greenhouse gases and ammonia emissions were related to their sources.
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Affiliation(s)
- Yue Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Xiuna Ren
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Junting Pan
- Key Laboratory of Non-point Source Pollution of Ministry of Agricultural and Rural Affairs, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - To-Hung Tsui
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong
| | - Liwen Luo
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong
| | - Quan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China.
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90
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Beriot N, Zomer P, Zornoza R, Geissen V. A laboratory comparison of the interactions between three plastic mulch types and 38 active substances found in pesticides. PeerJ 2020; 8:e9876. [PMID: 33005488 PMCID: PMC7513747 DOI: 10.7717/peerj.9876] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 08/14/2020] [Indexed: 01/19/2023] Open
Abstract
Background In semi-arid regions, the use of plastic mulch and pesticides in conventional agriculture is nearly ubiquitous. Although the sorption of pesticides on Low Density Polyethylene (LDPE) has been previously studied, no data are available for other plastics such as Pro-oxidant Additive Containing (PAC) plastics or "biodegradable" (Bio) plastics. The aim of this research was to measure the sorption pattern of active substances from pesticides on LDPE, PAC and Bio plastic mulches and to compare the decay of the active substances in the presence and absence of plastic debris. Methods For this purpose, 38 active substances from 17 insecticides, 15 fungicides and six herbicides commonly applied with plastic mulching in South-east Spain were incubated with a 3 × 3 cm2 piece of plastic mulch (LDPE, PAC and Bio). The incubation was done in a solution of 10% acetonitrile and 90% distilled water at 35 °C for 15 days in the dark. The Quick Easy Cheap Effective Rugged Safe approach was adapted to extract the pesticides. Results The sorption behavior depended on both the pesticide and the plastic mulch type. On average, the sorption percentage was ~23% on LDPE and PAC and ~50% on Bio. The decay of active substances in the presence of plastic was ~30% lesser than the decay of active substances in solution alone. This study is the first attempt at assessing the behavior of a diversity of plastic mulches and pesticides to further define research needs.
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Affiliation(s)
- Nicolas Beriot
- Soil Physics and Land Management Group, Wageningen University and Research, Wageningen, Netherlands.,Sustainable Use, Management and Reclamation of Soil and Water Research Group, Universidad Politécnica de Cartagena, Cartagena, Murcia, Spain
| | - Paul Zomer
- Wageningen Food Safety Research, Wageningen University and Research, Wageningen, Netherlands
| | - Raul Zornoza
- Sustainable Use, Management and Reclamation of Soil and Water Research Group, Universidad Politécnica de Cartagena, Cartagena, Murcia, Spain
| | - Violette Geissen
- Soil Physics and Land Management Group, Wageningen University and Research, Wageningen, Netherlands
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91
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Wang B, Li Z, Liu F, Liu Y. Eco-friendly, self-repairing polymer materials based on reversible Diels-Alder chemistry. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2020. [DOI: 10.1080/10601325.2020.1807365] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Bao Wang
- College of Chemistry, Key Laboratory of High Performance Plastics, Ministry of Education, Jilin University, Changchun, P.R. China
| | - Zhiying Li
- College of Chemistry, Key Laboratory of High Performance Plastics, Ministry of Education, Jilin University, Changchun, P.R. China
| | - Fengya Liu
- College of Chemistry, Key Laboratory of High Performance Plastics, Ministry of Education, Jilin University, Changchun, P.R. China
| | - Yudong Liu
- College of Chemistry, Key Laboratory of High Performance Plastics, Ministry of Education, Jilin University, Changchun, P.R. China
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92
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Borrowman CK, Bücking M, Göckener B, Adhikari R, Saito K, Patti AF. LC-MS analysis of the degradation products of a sprayable, biodegradable poly(ester-urethane-urea). Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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93
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94
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Sintim HY, Bary AI, Hayes DG, Wadsworth LC, Anunciado MB, English ME, Bandopadhyay S, Schaeffer SM, DeBruyn JM, Miles CA, Reganold JP, Flury M. In situ degradation of biodegradable plastic mulch films in compost and agricultural soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 727:138668. [PMID: 32334227 DOI: 10.1016/j.scitotenv.2020.138668] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/05/2020] [Accepted: 04/10/2020] [Indexed: 05/20/2023]
Abstract
The global use of agricultural plastic films, which provide multiple benefits for food production, is expected to grow by 59% from 2018 to 2026. Disposal options for agricultural plastics are limited and a major global concern, as plastic fragments from all sources ultimately accumulate in the sea. Biodegradable plastic mulches could potentially alleviate the disposal problem, but little is known about how well they degrade under different environmental conditions. We quantified the degradation of biodegradable plastic mulches in compost and in soil at warm and cool climates (Tennessee and Washington). Mulch degradation was assessed by Fourier-transformed infrared (FTIR) spectroscopy, molecular weight analysis, thermogravimetric analysis (TGA), nuclear-magnetic resonance (NMR), and mulch surface-area quantification. Biodegradable plastic mulches degraded faster in compost than in soil: degradation, as assessed by surface-area reduction, in compost ranged from 85 to 99% after 18 weeks, and in soil from 61 to 83% in Knoxville and 26 to 63% in Mount Vernon after 36 months. FTIR analyses indicate that hydrolytic degradation of ester bonds occurred, and a significant reduction of molecular weight was observed. TGA and NMR confirmed degradation of biodegradable polymers. Our results indicate that biodegradable plastic mulches degrade in soil, but at different rates in different climates and that degradation occurs over several years. Faster degradation occurred in compost, making composting a viable disposal method, especially in cool climates, where mulch fragments in soil may persist for many years.
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Affiliation(s)
- Henry Y Sintim
- Department of Crop & Soil Sciences, Washington State University, Puyallup, WA 98371, United States of America; Department of Crop & Soil Sciences, Washington State University, Pullman, WA 99164, United States of America
| | - Andy I Bary
- Department of Crop & Soil Sciences, Washington State University, Puyallup, WA 98371, United States of America; Department of Crop & Soil Sciences, Washington State University, Pullman, WA 99164, United States of America
| | - Douglas G Hayes
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, United States of America
| | - Larry C Wadsworth
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, United States of America
| | - Marife B Anunciado
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, United States of America
| | - Marie E English
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, United States of America
| | - Sreejata Bandopadhyay
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, United States of America
| | - Sean M Schaeffer
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, United States of America
| | - Jennifer M DeBruyn
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, United States of America
| | - Carol A Miles
- Department of Horticulture, Washington State University, WSU Mount Vernon, Northwestern Washington Research & Extension Center, Mount Vernon, WA 98273, United States of America
| | - John P Reganold
- Department of Crop & Soil Sciences, Washington State University, Pullman, WA 99164, United States of America
| | - Markus Flury
- Department of Crop & Soil Sciences, Washington State University, Puyallup, WA 98371, United States of America; Department of Crop & Soil Sciences, Washington State University, Pullman, WA 99164, United States of America.
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95
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Borrowman CK, Johnston P, Adhikari R, Saito K, Patti AF. Environmental degradation and efficacy of a sprayable, biodegradable polymeric mulch. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109126] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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96
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Chen L, Dai R, Shan Z, Chen H. Fabrication and characterization of one high-hygroscopicity liquid starch-based mulching materials for facilitating the growth of plant. Carbohydr Polym 2020; 230:115582. [PMID: 31887860 DOI: 10.1016/j.carbpol.2019.115582] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/04/2019] [Accepted: 11/06/2019] [Indexed: 11/18/2022]
Abstract
One high-performance liquid starch-based mulching materials (LSMM) was successfully fabricated by grafting polyacrylic acid (PAA) onto starch then crosslinking with N,N'-methylene-bisacrylamide (MBA). The effects of the dosage of acrylic acid on the performances of LSMM film had been explored. The LSMM was characterized by FTIR, solid state 13C NMR, XRD and SEM. Their application performances by spraying the LSMM on the soil surface also had been discussed. The PAA grafted onto starch significantly improved the properties of LSMM film (tensile strength 20.89 MPa, elongation at break 59.19 %, water absorbency 68.58 g/g and solubility in water 4.5 %). The PAA broke the hydrogen bonds and reduced the crystallinity of starch molecule, which can form the compact structure in LSSM film. As a result, the LSMM showed excellent relative hygroscopicity, water retention, degradability (weight loss 72.61 %) and the effect of facilitating the growth and germination ratio (84.00 %) of lettuce.
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Affiliation(s)
- Liwei Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Rui Dai
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Zhihua Shan
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Hui Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China.
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97
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Nelson TF, Remke SC, Kohler HPE, McNeill K, Sander M. Quantification of Synthetic Polyesters from Biodegradable Mulch Films in Soils. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:266-275. [PMID: 31738056 DOI: 10.1021/acs.est.9b05863] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Soil biodegradable mulch films composed of the polyester polybutylene adipate-co-terephthalate (PBAT) are being increasingly used in agriculture. Analytical methods to quantify PBAT in field soils are needed to assess its soil occurrence and fate. Here, we report an analytical method for PBAT in soils that couples Soxhlet extraction or accelerated solvent extraction (ASE) with quantitative protonnuclear magnetic resonance (q-1H NMR) spectroscopy detection. The 1H NMR peak areas of aromatic PBAT protons increased linearly with PBAT concentrations dissolved in deuterated chloroform (CDCl3), demonstrating accurate quantitation of PBAT by q-1H NMR. Spike-recovery experiments involving PBAT addition to model sorbents and soils showed increased PBAT extraction efficiencies into chloroform (CHCl3) with methanol (MeOH) as cosolvent, consistent with MeOH competitively displacing PBAT from H-bond donating sites on mineral surfaces. Systematic variations in solvent composition and temperatures in ASE revealed quantitative PBAT extraction from soil with 90/10 volume % CHCl3/MeOH at 110-120 °C. Both Soxhlet extraction and ASE resulted in the complete recovery of PBAT added to a total of seven agricultural soils covering a range of physicochemical properties, independent of whether PBAT was added to soils dissolved in CHCl3, as film, or as particles. Recovery was also complete for PBAT added to soil in the form of a commercial soil biodegradable mulch film with coextractable polylactic acid (PLA). The presented analytical method enables accurate quantification and biodegradation monitoring of PBAT in agricultural field soils.
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Affiliation(s)
- Taylor F Nelson
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, 8092 Zurich, Switzerland
| | - Stephanie C Remke
- Drinking Water Chemistry Group, Water Resources and Drinking Water, Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland
- School of Architecture, Civil and Environmental Engineering (ENAC), Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Hans-Peter E Kohler
- Environmental Biochemistry Group; Environmental Microbiology, Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland
| | - Kristopher McNeill
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, 8092 Zurich, Switzerland
| | - Michael Sander
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, 8092 Zurich, Switzerland
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98
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Lopresti F, Botta L, Scaffaro R, Bilello V, Settanni L, Gaglio R. Antibacterial biopolymeric foams: Structure–property relationship and carvacrol release kinetics. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109298] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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99
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Rychter P, Lewicka K, Rogacz D. Environmental usefulness of PLA/PEG blends for controlled‐release systems of soil‐applied herbicides. J Appl Polym Sci 2019. [DOI: 10.1002/app.47856] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Piotr Rychter
- Faculty of Mathematics and Natural ScienceJan Długosz University in Częstochowa 13/15 Armii Krajowej Av., 42‐200 Częstochowa Poland
| | - Kamila Lewicka
- Faculty of Mathematics and Natural ScienceJan Długosz University in Częstochowa 13/15 Armii Krajowej Av., 42‐200 Częstochowa Poland
| | - Diana Rogacz
- Faculty of Mathematics and Natural ScienceJan Długosz University in Częstochowa 13/15 Armii Krajowej Av., 42‐200 Częstochowa Poland
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100
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Sander M, Kohler HPE, McNeill K. Assessing the environmental transformation of nanoplastic through 13C-labelled polymers. NATURE NANOTECHNOLOGY 2019; 14:301-303. [PMID: 30944423 DOI: 10.1038/s41565-019-0420-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- Michael Sander
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zurich, Switzerland.
| | - Hans-Peter E Kohler
- Environmental Microbiology, Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Kristopher McNeill
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zurich, Switzerland
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