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Wang H, Liu H, Li J, Chen S, Uz Zaman Q, Sultan K, Rehman M, Saud S, El-Kahtany K, Fahad S, Deng G, Chen A. Combined passivators regulate physiological, antioxidant potential and metals accumulation in potato grown in metals contaminated soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168956. [PMID: 38043817 DOI: 10.1016/j.scitotenv.2023.168956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/07/2023] [Accepted: 11/26/2023] [Indexed: 12/05/2023]
Abstract
To solve the problem of excessive heavy metals in farmland soil, there is a dire need for research effort to screen for the soil passivator materials. This study aimed to develop a practical novel approach for improving the potato growth and remedial effectiveness of the metals by optimal combination and dosage of various passivators. Experimental treatments were comprised of various levels of passivating agents (sepiolite, quicklime and calcium magnesium phosphate) in individual and combined form. Results showed that application of passivating agents significantly enhanced growth by optimizing photosynthetic attributes, enzymatic antioxidants, and soil health. Balanced application of passivators effectively reduce the bioavailability of metals, curbing their uptake by potato plants. Sole application of all the agents results statistically similar outcomes as compared with combined form. Additionally, passivators indirectly enhance the activity of essential antioxidant enzymes. Synergistic effect of all the agents significantly improved the tuber quality by decreasing the accumulation of proline, malondialdehyde content, and bioaccumulation of Cu, Pb, Cd, and As in potato parts. In crux, combined usage of passivating agents proved to be of better growth, improvement in antioxidative defense system, and better quality of potato. By mitigating heavy metal contamination, passivators not only enhance crop quality and yield but also ensure heavy metal-free potatoes that meet stringent food safety standards.
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Affiliation(s)
- Hongyang Wang
- Yunnan Key Laboratory of Potato Biology, Yunnan Normal University, Kunming, Yunnan 650500, China
| | - Hao Liu
- School of Agriculture, Yunnan University, Kunming, Yunnan 650504, China
| | - Junhua Li
- School of Agriculture, Yunnan University, Kunming, Yunnan 650504, China
| | - Shengnan Chen
- Yunnan Key Laboratory of Potato Biology, Yunnan Normal University, Kunming, Yunnan 650500, China
| | - Qamar Uz Zaman
- Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan
| | - Khawar Sultan
- Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan
| | - Muzammal Rehman
- Guangxi Key Laboratory of Agro-environment and Agric-products Safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Shah Saud
- College of Life Science, Linyi University, Linyi, Shandong 276000, China
| | - Khaled El-Kahtany
- Geology and Geophysics Department, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Shah Fahad
- Department of Agronomy, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa 23200, Pakistan.
| | - Gang Deng
- School of Agriculture, Yunnan University, Kunming, Yunnan 650504, China.
| | - Aie Chen
- Yunnan Key Laboratory of Potato Biology, Yunnan Normal University, Kunming, Yunnan 650500, China; Teaching Affairs Department, Yunnan Normal University, Kunming 650500, China.
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2
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Xiao J, Li X, Zhang X, Cao Y, Vithanage M, Bolan N, Wang H, Zhong Z, Chen G. Contrasting effect of pristine, ball-milled and Fe-Mn modified bone biochars on dendroremediation potential of Salix jiangsuensis "172" for cadmium- and zinc-contaminated soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 341:123019. [PMID: 38008255 DOI: 10.1016/j.envpol.2023.123019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 10/20/2023] [Accepted: 11/19/2023] [Indexed: 11/28/2023]
Abstract
Bone biochar (BC) has a high capacity for the immobilization of potentially toxic elements (PTEs); however, its effect on dendroremediation efficiency remains unclear. Therefore, this study aimed to determine the effects of various concentrations (0, 0.5, 1, and 2 wt%) of BC, ball-milled BC (MBC), and Fe-Mn oxide-modified BC (FMBC) on soil properties, plant growth, and metal accumulation in Salix jiangsuensis "172" (SJ-172) grown in cadmium (Cd)- and zinc (Zn)-contaminated soil. BC and MBC promoted the photosynthetic rate, mineral element absorption, and plant growth of SJ-172, whereas FMBC inhibited the growth of SJ-172. Different biochars greatly influenced the concentrations of Cd and Zn in tissues of SJ-172. BC and MBC elevated the Cd levels, whereas FMBC decreased the Cd content in the leaves, stems, and cuttings of SJ-172. Unlikely, BC, MBC and FMBC show no evident change to the Zn concentration in the aboveground tissues of SJ-172, while decreased root Cd and Zn content compared with the control. MBC, at a 2.0% application rate, significantly increased the translocation factors of Cd (55.0%) and Zn (40.87%), whereas BC and FMBC demonstrated no significant effects compared with the control (P > 0.05). Moreover, 2.0% BC and MBC increased Cd and Zn accumulation in SJ-172 by 28.40 and 41.14, and 25.89 and 36.16%, respectively, whereas 2.0% FMBC reduced Cd and Zn accumulation by 53.20% and 13.18 %, respectively, compared with the control. The phytoremediation potential of SJ-172 for Cd- and Zn-contaminated soils was enhanced by MBC and BC, whereas it was lowered by FMBC compared to the control. These results provide novel insights for the application of fast-growing trees assisted by biochar amendments in the dendroremediation of severely PTEs-contaminated soil.
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Affiliation(s)
- Jiang Xiao
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, 311400, China
| | - Xiaogang Li
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, 311400, China
| | - Xiaoping Zhang
- China National Bamboo Research Center, National Forestry and Grassland Administration, Hangzhou, 310012, China
| | - Yini Cao
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, 311400, China
| | - Meththika Vithanage
- Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka
| | - Nanthi Bolan
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia; The UWA Institute of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
| | - Hailong Wang
- School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China; Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, 528000, China
| | - Zheke Zhong
- China National Bamboo Research Center, National Forestry and Grassland Administration, Hangzhou, 310012, China
| | - Guangcai Chen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, 311400, China.
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3
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He X, Xiao X, Wei W, Li L, Zhao Y, Zhang N, Wang M. Soil rare microorganisms mediated the plant cadmium uptake: The central role of protists. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168505. [PMID: 37967623 DOI: 10.1016/j.scitotenv.2023.168505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/25/2023] [Accepted: 11/09/2023] [Indexed: 11/17/2023]
Abstract
Plants and microorganisms symbiotically mediate and/or catalyse the turnover of elements in rhizosphere soils, thus directly influencing the effectiveness of phytoremediation in addressing heavy metal contamination. Soil rare microbial communities are diverse but not well understood in terms of their importance for phytoremediation. In this study, we simulated the loss of rare microorganisms through dilution-to-extinction approach, and investigated the effects on integrated rhizosphere microbiome with soil microcosm experiments, including bacteria, fungi, protists, and microfauna. Additionally, we explored the implications for ryegrass (Lolium multiflorum Lam.) growth and its uptake of Cd (cadmium). Compared with the undiluted group, ryegrass exhibited a significant decrease in Cd uptake ranging from 52.34 % to 73.71 % in the rare species-loss soils, indicating a lack of functional redundancy in rhizosphere soil microbial community following rare species loss. Interestingly, these soils displayed a remarkable 1.79-fold increase in plant biomass and a 41.02 % increase in plant height. By sequencing the 16S, 18S, and ITS rRNA gene amplicons of rhizosphere microbes, we found that soil rare species loss decreased the rhizosphere microbial α-diversity, changed the community structures, and shifted the functional potential. Protists were particularly affected. Through the analysis of species co-occurrence networks, along with the partial least squares path modeling, we found that the diversity of protists and bacteria and the co-occurring network connectivity of protists and fungi contributed most to plant Cd uptake and growth. These results highlighted the potential significance of rare microorganisms, particularly protists, in phytoextraction of Cd-contaminated soils, owing to their central role in the microbial food web.
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Affiliation(s)
- Xingguo He
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Xian Xiao
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
| | - Weiwei Wei
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Key Laboratory for Lake Pollution Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Liangzhong Li
- Chongqing Huanyue Ecological Environment Technology Co., Ltd., Chongqing 400000, China
| | - Yuan Zhao
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Na Zhang
- Hunan Soil and Fertilizer Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Mingyu Wang
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
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Hussain B, Riaz L, Li K, Hayat K, Akbar N, Hadeed MZ, Zhu B, Pu S. Abiogenic silicon: Interaction with potentially toxic elements and its ecological significance in soil and plant systems. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 338:122689. [PMID: 37804901 DOI: 10.1016/j.envpol.2023.122689] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/28/2023] [Accepted: 10/02/2023] [Indexed: 10/09/2023]
Abstract
Abiogenic silicon (Si), though deemed a quasi-nutrient, remains largely inaccessible to plants due to its prevalence within mineral ores. Nevertheless, the influence of Si extends across a spectrum of pivotal plant processes. Si emerges as a versatile boon for plants, conferring a plethora of advantages. Notably, it engenders substantial enhancements in biomass, yield, and overall plant developmental attributes. Beyond these effects, Si augments the activities of vital antioxidant enzymes, encompassing glutathione (GSH), catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD), among others. It achieves through the augmentation of reactive oxygen species (ROS) scavenging gene expression, thus curbing the injurious impact of free radicals. In addition to its effects on plants, Si profoundly ameliorates soil health indicators. Si tangibly enhances soil vitality by elevating soil pH and fostering microbial community proliferation. Furthermore, it exerts inhibitory control over ions that could inflict harm upon delicate plant cells. During interactions within the soil matrix, Si readily forms complexes with potentially toxic metals (PTEs), encapsulating them through Si-PTEs interactions, precipitative mechanisms, and integration within colloidal Si and mineral strata. The amalgamation of Si with other soil amendments, such as biochar, nanoparticles, zeolites, and composts, extends its capacity to thwart PTEs. This synergistic approach enhances soil organic matter content and bolsters overall soil quality parameters. The utilization of Si-based fertilizers and nanomaterials holds promise for further increasing food production and fortifying global food security. Besides, gaps in our scientific discourse persist concerning Si speciation and fractionation within soils, as well as its intricate interplay with PTEs. Nonetheless, future investigations must delve into the precise functions of abiogenic Si within the physiological and biochemical realms of both soil and plants, especially at the critical juncture of the soil-plant interface. This review seeks to comprehensively address the multifaceted roles of Si in plant and soil systems during interactions with PTEs.
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Affiliation(s)
- Babar Hussain
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China
| | - Luqman Riaz
- Department of Environmental Sciences, Kohsar University Murree, 47150, Punjab, Pakistan
| | - Kun Li
- Sichuan Academy of Forestry, Chengdu, 610081, Sichuan, China
| | - Kashif Hayat
- Key Laboratory of Pollution Exposure and Health Intervention, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Naveed Akbar
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China
| | | | - Bowei Zhu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China
| | - Shengyan Pu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China.
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5
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Zou Y, An Z, Chen X, Zheng X, Ben Zhang, Zhang S, Chang SX, Jia J. Effects of co-applied biochar and plant growth-promoting bacteria on soil carbon mineralization and nutrient availability under two nitrogen addition rates. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115579. [PMID: 37856979 DOI: 10.1016/j.ecoenv.2023.115579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/03/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Abstract
In the background of climate warming, the demand for improving soil quality and carbon (C) sequestration is increasing. The application of biochar to soil has been considered as a method for mitigating climate change and enhancing soil fertility. However, it is uncertain whether the effects of biochar application on C-mineralization and N transformation are influenced by the presence or absence of plant growth-promoting bacteria (PGPB) and soil nitrogen (N) level. An incubation study was conducted to investigate whether the effects of biochar application (0 %, 1 %, 2 % and 4 % of soil mass) on soil respiration, N status, and microbial attributes were altered by the presence or absence of PGPB (i.e., Sphingobium yanoikuyae BJ1) under two soil N levels (N0 and N1 soils as created by the addition of 0 and 0.2 g kg-1 urea- N, respectively). The results showed that biochar, BJ1 strain and their interactive effects on cumulative CO2 emissions were not significant in N0 soils, while the effects of biochar on the cumulative CO2 emissions were dependent on the presence or absence of BJ1 in N1 soils. In N1 soils, applying biochar at 2 % and 4 % increased the cumulative CO2 emissions by 141.0 % and 166.9 %, respectively, when BJ1 was absent. However, applying biochar did not affect CO2 emissions when BJ1 was present. In addition, the presence of BJ1 generally increased ammonium contents in N0 soils, but decreased nitrate contents in N1 soils relative to the absence of BJ1, which indicates that the combination of biochar and BJ1 is beneficial to play the N fixation function of BJ1 in N0 soils. Our results highlight that biochar addition influences not only soil C mineralization but also soil available N, and the direction and magnitude of these effects are highly dependent on the presence of PGPB and the soil N level.
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Affiliation(s)
- Yiping Zou
- School of Chemical & Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; Department of Renewable Resources, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
| | - Zhengfeng An
- Department of Renewable Resources, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
| | - Xinli Chen
- Department of Renewable Resources, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
| | - Xiang Zheng
- Department of Renewable Resources, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
| | - Ben Zhang
- School of Chemical & Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Shuyue Zhang
- School of Chemical & Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Scott X Chang
- Department of Renewable Resources, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
| | - Jianli Jia
- School of Chemical & Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.
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6
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Ma M, Xu X, Ha Z, Su Q, Lv C, Li J, Du D, Chi R. Deep insight on mechanism and contribution of arsenic removal and heavy metals remediation by mechanical activation phosphogypsum. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122258. [PMID: 37536479 DOI: 10.1016/j.envpol.2023.122258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/08/2023] [Accepted: 07/24/2023] [Indexed: 08/05/2023]
Abstract
Arsenic-containing wastewater and arsenic-contaminated soil can cause serious environmental pollution. In this study, phosphogypsum with partial mechanical activation of calcium oxide was used to prepare a new phosphogypsum-based passivate (Ca-mPG), and its remediation performance on arsenic-contaminated soil was evaluated in terms of both effectiveness and microbial response. The results showed that the optimum conditions for the preparation of the passivate were optimized in terms of single factor and response surface with a ball milling speed of 200 r/min, a material ratio of 6:4 and a ball milling time of 4 h. Under these conditions, the adsorption capacity was 37.75 mg/g. The leaching concentration of arsenic (As) in the contaminated soil after Ca-mPG modification decreased from 25.75 μg/L to 5.88 μg/L, which was lower than the Chinese national standard (GB/T 5085.3-2007); Ca-mPG also showed excellent passivation effect on other heavy Metals (copper, nickel, cadmium, zinc). In addition, As-resistant bacteria and passivators work together to promote the stabilization effect of contaminants during the remediation of As-contaminated soil. The mechanisms of Cu, As(III)/As(V), Zn, Cd, and Ni removal were related to ion exchange, electrostatic adsorption of substances on heavy metals, calcium binding to other substances to produce precipitation; and microbially induced stabilization of HMs, oxidized. Overall, this study demonstrates an eco-friendly "waste-soil remediation" strategy to solve problems associated with solid waste reuse and remediation of HM-contaminated soils.
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Affiliation(s)
- Mengyu Ma
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China; Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Xingfa Mining Engineering, Wuhan Institute of Technology, Wuhan 430074, PR China
| | - Xiangqun Xu
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Zhihao Ha
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Qingmuke Su
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Chenyang Lv
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Jia Li
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Dongyun Du
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China.
| | - Ruan Chi
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Xingfa Mining Engineering, Wuhan Institute of Technology, Wuhan 430074, PR China
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7
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Li Q, Guan C, Zhao Y, Duan X, Yang Z, Zhu J. Salicylic acid alleviates Zn-induced inhibition of growth via enhancing antioxidant system and glutathione metabolism in alfalfa. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 265:115500. [PMID: 37757624 DOI: 10.1016/j.ecoenv.2023.115500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
Zinc (Zn) is considered as one of the heavy metal pollutants in soil affecting agriculture. Salicylic acid (SA) is an important phytohormone that can mitigate effects against various abiotic stresses in plants, however, its exploration to improve Zn stress tolerance in alfalfa plants is still elusive. Thus, in the present study, exogenous SA treatment was conducted on alfalfa plants under Zn stress. The effects of exogenous SA on the physiological effects of alfalfa plants and the expression levels related genes were studied. This study tested the biomass, relative water content, chlorophyll levels, photosynthetic capacity, proline and soluble sugar contents, detected the activity of antioxidant enzymes (such as peroxidase and superoxide dismutase), glutathione biosynthesis, and endogenous SA levels, and quantified the genes associated with the antioxidant system and glutathione metabolism-mediated Zn stress. The results showed that exogenous SA could elevate the physiological adaptability of alfalfa plants through enhancing photosynthesis, proline and soluble sugar levels, stimulating antioxidant system and glutathione metabolism, and inducing the transcription level of related genes, thereby diminishing oxidative stress, inhibiting excessive Zn accumulation of alfalfa plants, increasing tolerance to Zn stress, and reducing the toxicity of Zn. Collectively, the application of SA alleviates Zn toxicity in alfalfa plants. The findings gave first insights into the regulatory mechanism of the Zn stress tolerance of alfalfa by exogenous SA and this might have positive implications for managing other plants which are suffering Zn stress.
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Affiliation(s)
- Qian Li
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China; State Key Laboratory of North China Crop Improvement and Regulation, Baoding, Hebei 071001, China
| | - Chunfeng Guan
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yi Zhao
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
| | - Xiaoye Duan
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
| | - Zhihui Yang
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China.
| | - Jiehua Zhu
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China.
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8
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Wen L, Lin L, Fan YA, Luo Y, Ma SS, Zhou Y, Yang C, Shih K, Li XY. Valorization of thermally hydrolyzed sludge with clay for sintering of ceramic tiles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 877:162871. [PMID: 36933740 DOI: 10.1016/j.scitotenv.2023.162871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 05/06/2023]
Abstract
The disposal of wastewater sludge is one of the most challenging environmental problems for large cities. Wastewater sludge may be utilized as a feasible substitute for clay to sinter ceramics, given their similar mineralogical composition. However, the organics in sludge will be wasted, while their release during sintering will leave cracks in the ceramic products. In this research, after the thermal treatment for effective organic recovery, the thermally hydrolyzed sludge (THS) is incorporated with clay for the sintering of construction ceramics. The experimental results showed that a THS dosing ratio up to 40 % can be achieved for mixing with montmorillonite clay to make ceramic tiles. The sintered tiles (THS-40) had an intact shape and structure, and the tile performance was close to that made from single montmorillonite (THS-0), with water absorption of 0.4 % vs. 0.2 %, compressive strength of 136.8 vs. 140.7 MPa, and undetected heavy metal leaching. Further addition of THS would lead to a considerable deterioration of the quality of the tiles to a compressive strength of as low as 5.0 MPa for the THS only product (THS-100). Comparing with the tiles incorporated with raw sludge (RS-40), the THS-40 tiles had a more intact and denser structure with a 10 % improved compressive strength. Cristobalite, aluminum phosphate, mullite, and hematite dominated in the THS-born ceramics, which are typical components of ceramics, and the amount of hematite increased with the THS dosing ratio. Sintering at a high temperature of 1200 °C enabled efficient phase transformation from quartz to cristobalite and from muscovite to mullite, which ensured the toughness and compactness of the THS-born ceramic tiles.
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Affiliation(s)
- Lei Wen
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Lin Lin
- Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
| | - Yi-Ang Fan
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Yang Luo
- Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zurich 8093, Switzerland
| | - Sheng-Shou Ma
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Ying Zhou
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Chao Yang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Kaimin Shih
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Xiao-Yan Li
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong; Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
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9
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Yang M, Li J, Wu H. Toxicity evaluation of chlorinated natural water using Photobacterium phosphoreum: Implications for ballast water management. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 335:117471. [PMID: 36863148 DOI: 10.1016/j.jenvman.2023.117471] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/23/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
Chlorination of ballast water could produce harmful disinfection by-products (DBPs) and total residual oxidants. The International Maritime Organization calls for toxicity testing of discharged ballast water with fish, crustacea and algae to reduce the risk, but it is difficult to evaluate the toxicity of treated ballast water in a short time. Therefore, the purpose of this study was to analyze the applicability of luminescent bacteria to the assessment of residual toxicity of chlorinated ballast water. The toxicity unit for all treated samples were higher for Photobacterium phosphoreum than for microalgae (Selenastrum capricornutum and Chlorella pyrenoidosa), after adding neutralizer, all samples showed little effect on the luminescent bacteria and microalgae. For the DBPs, except for 2,4,6-Tribromophenol, Photobacterium phosphoreum could produce more sensitive and rapid test results than other species, the results in Photobacterium phosphoreum showed that the toxicity of DBPs in order of: 2,4-Dibromophenol > 2,6-Dibromophenol > 2,4,6-Tribromophenol > Monobromoacetic acid > Dibromoacetic acid > Tribromoacetic acid, and most binary mixtures (aromatic DBPs and aliphatic DBPs) presented synergistic effects based on the CA model. The aromatic DBPs in ballast water deserve more attention. In general, for ballast water management, the use of luminescent bacteria to evaluate the toxicity of treated ballast water and DBPs is desirable, this study could provide beneficial information for enhancing ballast water management.
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Affiliation(s)
- Min Yang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Centre for Research on the Ecological Security of Ports and Shipping, Shanghai Ocean University, Shanghai, 201306, China
| | - Jinjie Li
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Centre for Research on the Ecological Security of Ports and Shipping, Shanghai Ocean University, Shanghai, 201306, China
| | - Huixian Wu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Centre for Research on the Ecological Security of Ports and Shipping, Shanghai Ocean University, Shanghai, 201306, China.
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10
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Sun Y, Han T, Lu W, Wang Y, Jiang D, Abbasi HN, Guo Z, Zhang S, Li B, Wang X, Dai H. Effects of nano metal oxide particles on denitrifying phosphorus removal system: Potential stress mechanism and recovery strategy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 875:162706. [PMID: 36906010 DOI: 10.1016/j.scitotenv.2023.162706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
The accumulation of nano metal oxide particles (NMOPs) in municipal sewage treatment systems harms the microbial community and its metabolism in activated sludge system, resulting in the degradation of its pollutants removal performance. In this work, the stress effect of NMOPs on the denitrifying phosphorus removal system was systematically investigated in terms of pollutants removal performance, key enzyme activities, microbial community diversity and abundances, and intracellular metabolites. Among the ZnO NPs, TiO2 NPs, CeO2 NPs, and CuO NPs, the ZnO NPs showed the most significant impacts with the chemical oxygen demand, total phosphorus, and nitrate nitrogen removal ratio decreased from above 90 % to 66.50 %, 49.13 %, and 57.11 %, respectively. The addition of surfactants and chelating agents could relieve the toxic effect of NMOPs on the denitrifying phosphorus removal system, and the chelating agents were more effective than surfactants in performance recovery. After adding ethylene diamine tetra acetic acid, the removal ratio of chemical oxygen demand, total phosphorus, and nitrate nitrogen under ZnO NPs stress was restored to 87.31 %, 88.79 %, and 90.35 %, respectively. The study provides valuable knowledge to better understand the impacts and stress mechanism of NMOPs on activated sludge systems and provides a solution to recover the nutrients removal performance of denitrifying phosphorus removal system under NMOPs stress.
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Affiliation(s)
- Yang Sun
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Ting Han
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Wenxin Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Yingqi Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Deyi Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Haq Nawaz Abbasi
- Department of Environmental science, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan.
| | - Zechong Guo
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China; School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, China.
| | - Shuai Zhang
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Bing Li
- Jiangsu Zhongchuang Qingyuan Technology Co., Ltd., Yancheng 224000, China
| | - Xingang Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
| | - Hongliang Dai
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China; School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, China.
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11
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Tan X, Liu J, Liu M, Zhang Y, Liu Q, Duan G, Cui J, Lin A. Arsenic removal and stabilization behavior of schwertmannite@BC (Sch@BC) in contaminated dual media (water/soil): Via sulfate exchange and chemical complexation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 325:121431. [PMID: 36914151 DOI: 10.1016/j.envpol.2023.121431] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Arsenic (As) is extremely harmful to the ecological environment and human health owing to its high toxicity. The composite that biochar (BC) modified by Schwertmannite (Sch), marked as Sch@BC, were prepared to remediate As-contaminated water and soil with a high efficiency. The characterization results showed that the Sch particles were successfully loaded on the BC, providing more active sites for As(V) adsorption. Compared with the pristine BC, the adsorption capacity of Sch@BC-1 was significantly improved (50.00 mg/g), of which the adsorption capacity kept stable over a wide pH range (pH = 2-8). The adsorption process conformed to pseudo-second-order kinetics and Langmuir isotherm model, which indicated that chemical adsorption was the dominant mechanism and the adsorption rate was controlled by intraparticle diffusion. Sch@BC could adsorb As(V) through electrostatic interaction and ion exchange, forming a FeAsO4 complex and removing As(V). The 5-week soil incubation experiment showed that 3% Sch@BC showed the optimal stabilization effect, while the proportion of stable crystalline Fe/Mn-bound fractionation (F4) increased. Moreover, the results of microbial community diversity showed that Sch@BC interacted with As-resistant dominant microorganisms such as Proteobacteria in soil, promoted their growth and reproduction, and improved the stability of As in soil. In summary, Sch@BC is an excellent agent with broad application prospects for remediating As-contaminated water and soil.
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Affiliation(s)
- Xiao Tan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Jiahao Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Meng Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Yinjie Zhang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Qi Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100029, PR China
| | - Jun Cui
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
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12
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Yin R, Wang Z, Xu F. Multi-scenario simulation of China's dynamic relationship between water-land resources allocation and cultivated land use based on shared socioeconomic pathways. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 341:118062. [PMID: 37141718 DOI: 10.1016/j.jenvman.2023.118062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/17/2023] [Accepted: 04/28/2023] [Indexed: 05/06/2023]
Abstract
Rapid urban expansion, population growth, and limited cultivated land in China necessitate rethinking the path to sustainable management of cultivated land. Understanding the long-term dynamic relationship between water-land resource endowment and cultivated land use contributes to effective management and use of cultivated land. However, few studies have systematically documented this relationship, especially for future trends. Accordingly, we modified water-land resource matching (WLRM) using a more refined grid-scale and assessed cultivated land use efficiency (CLUE), then deployed spatial panel regression models to quantify historical changes. We subsequently simulated future trends under three Shared Socioeconomic Pathways scenarios. The results showed that the relationship assumed an N-shaped curve in nation, while the curve followed a down-up-down pattern in economically less developed regions, largely because of structural transformations of production factors. Under three development scenarios, the stage-specific characteristics of production factors were pronounced, and the dynamic relationship varied across regions.
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Affiliation(s)
- Ruimin Yin
- School of Public Administration, China University of Geosciences, Wuhan, 430074, China.
| | - Zhanqi Wang
- School of Public Administration, China University of Geosciences, Wuhan, 430074, China.
| | - Feng Xu
- School of Public Administration, China University of Geosciences, Wuhan, 430074, China.
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13
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Jin C, Cao J, Zhang K, Zhang X, Cao Z, Zou W. Promotion effects and mechanisms of molybdenum disulfide on the propagation of antibiotic resistance genes in soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 256:114913. [PMID: 37062264 DOI: 10.1016/j.ecoenv.2023.114913] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/28/2023] [Accepted: 04/12/2023] [Indexed: 06/19/2023]
Abstract
The rapid development of nanotechnology has aroused considerable attentions toward understanding the effects of engineered nanomaterials (ENMs) on the propagation of antibiotic resistance. Molybdenum disulfide (MoS2) is an extensively used ENM and poses potential risks associated with environmental exposure; nevertheless, the role of MoS2 toward antibiotic resistance genes (ARGs) transfer remains largely unknown. Herein, it was discovered that MoS2 nanosheets accelerated the horizontal transfer of RP4 plasmid across Escherichia coli in a dose-dependent manner (0.5-10 mg/L), with the maximum transfer frequency 2.07-fold higher than that of the control. Integration of physiological, transcriptomics, and metabolomics analyses demonstrated that SOS response in bacteria was activated by MoS2 due to the elevation of oxidative damage, accompanied by cell membrane permeabilization. MoS2 promoted bacterial adhesion and intercellular contact via stimulating the secretion of extracellular polysaccharides. The ATP levels were maximally increased by 305.7 % upon exposure to MoS2, and the expression of plasmid transfer genes was up-regulated, contributing to the accelerated plasmid conjugation and increased ARG abundance in soil. Our findings highlight the roles of emerging ENMs (e.g., MoS2) in ARGs dissemination, which is significant for the safe applications and risk management of ENMs under the development scenarios of nanotechnology.
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Affiliation(s)
- Caixia Jin
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Jingxin Cao
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Kai Zhang
- School of Geographic Sciences, Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang 464000, China
| | - Xingli Zhang
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Zhiguo Cao
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Wei Zou
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China.
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14
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Ma N, Gao L, Ge Z, Li M. Hydrochemical characteristics of groundwater in a plain river network region: Establishing linkages between source and water quality variables. CHEMOSPHERE 2023; 331:138809. [PMID: 37127199 DOI: 10.1016/j.chemosphere.2023.138809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 04/15/2023] [Accepted: 04/28/2023] [Indexed: 05/03/2023]
Abstract
The chemical characteristics of groundwater can indicate water quality condition and provide useful information for pollution source identification. This study aimed to understand the effects of dissolved organic matter (DOM) on ionic composition of groundwater and identify the main ions and sources of pollution. The Lake Taihu is a typical eutrophic lake in China. In this study, the hydrochemical composition of groundwater in the surrounding aquifer of Lake Taihu Basin was analyzed. The results showed that the values of water quality index (WQI) range from 13.29 to 56.26 (good water quality). The dominant hydrochemical type of groundwater was Ca-Mg-HCO3 type, and the rock dominance was the major mechanism controlling the groundwater chemistry. With an increasing concentration in dissolved organic carbon (DOC), the Na+, Mg2+, and HCO3- concentrations all showed a sharp increase followed by a slow increase, while the NO3- concentration showed an opposite trend, indicating the DOM can affect the ions composition. In addition, K+ was positively correlated with NO3-, As, and Cd. Hence, DOM input may directly or indirectly change the hydrochemistry of groundwater. Besides, the NO3- concentration in groundwater was much higher than that in Lake Taihu, indicating that the NO3- in groundwater mainly came from surface soil leaching. The anthropogenic sources are probably the main sources of different ions, including K+, NO3-, As, and Cd. This study can help to better understand the effects of lake eutrophication on groundwater and its pathways.
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Affiliation(s)
- Ning Ma
- College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, PR China
| | - Li Gao
- Institute for Sustainable Industries and Liveable Cities, Victoria University, PO Box 14428, Melbourne, Victoria, 8001, Australia
| | - Zhengkui Ge
- College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, PR China
| | - Ming Li
- College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, PR China.
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15
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Liu P, Gong Y, Yang C, Ledesma-Amaro R, Park YK, Deng S, Wang Y, Wei H, Chen W. Biorefining of rapeseed meal: A new and sustainable strategy for improving Cr(VI) biosorption on residual wastes from agricultural byproducts after phenolic extraction. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 165:70-81. [PMID: 37086658 DOI: 10.1016/j.wasman.2023.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/02/2023] [Accepted: 04/12/2023] [Indexed: 05/03/2023]
Abstract
Phenolic recovery from agricultural byproducts has been highlighted due to their health-promoting bioactivities. However, uncontrolled discard of residues after extraction process would induce environmental pollution and bioresource waste. In this study, biorefining of phenolic-rich rapeseed meal (RSM) and its defatted sample (dRSM) was attempted by holistic utilization of phenolic extract and residue separately. Phenolic removal could significantly improve residues' Cr(VI) adsorption capacities by about 21%, which presented extended physical surface and more released functional groups. Moreover, simulating raw material by remixing 3% separated phenolic extracts or main component sinapic acid therein with corresponding residues further improved about 12% adsorption efficiencies. These indicated that the different present forms of phenolics had opposite effects on Cr(VI) removal. While natural conjugational form inhibited hosts' biosorption, free form had enhanced functions for either extract or residue. Four optimal adsorption parameters (pH, adsorbent dosage, contact time and initial Cr(VI) concentration), three kinetic (pseudo-first order, pseudo-second order and intra-particle diffusion) models and two isotherms (Langmuir and Freundlich) were used to reveal the adsorption process. The maximum Cr(VI) adsorption capacity on residues could reach about 100 mg/g, which was superior to that of most biosorbents derived from agricultural byproducts, even some biochar. Together with the residues' advantages with everlasting capacity after 3 adsorption-desorption cycles and excellent abilities for adsorbing multiple co-existed metal ions (Cr(VI), Cd(II), Cu(II), Pb(II), Ni(II) and Zn(II)), phenolic recovery was first proved to be a new and sustainable strategy for modifying biosorbents from agricultural byproducts with zero waste.
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Affiliation(s)
- Pei Liu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, PR China
| | - Yangmin Gong
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, PR China
| | - Chen Yang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, PR China
| | - Rodrigo Ledesma-Amaro
- Department of Bioengineering and Imperial College Centre for Synthetic Biology, Imperial College London, London SW7 2AZ, UK
| | - Young-Kyoung Park
- Department of Bioengineering and Imperial College Centre for Synthetic Biology, Imperial College London, London SW7 2AZ, UK
| | - Shiyu Deng
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, PR China
| | - Yuliang Wang
- Hubei University of Technology, Wuhan 430068, PR China
| | - Hongbo Wei
- Yangtze University, Jingzhou 434025, PR China
| | - Wenchao Chen
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, PR China.
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16
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Shang H, Zhao W, Zhang X, Wang Z. The potential of biomass-derived bio-liquid to prevent the spread of SARS-CoV-2 from waste and its production-based life cycle assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 869:161833. [PMID: 36716876 PMCID: PMC9883070 DOI: 10.1016/j.scitotenv.2023.161833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/18/2023] [Accepted: 01/21/2023] [Indexed: 06/18/2023]
Abstract
COVID-19 pandemic caused a significant increase in medical and infected domestic waste, greatly increasing risk of human infected with SARS-CoV-2. Therefore, it is critical to prevent the spread of SARS-CoV-2 from solid waste to humans. Current commercial disinfectants present a high carbon footprint issue. Hence, we prepared a renewable wheat straw-based bio-liquid that can damage SARS-CoV-2 RNA and protein. The wet thermochemical extraction (WTE) bio-liquid, with total organic carbon concentration exceeding 1892 mg/L, could effectively damage the virus. However, dry thermochemical extraction (DTE) samples were not efficient due to their low content of effective compounds. The life cycle assessment showed that WTE bio-liquid production implies lower energy and environmental negative impacts than DTE. Moreover, the process by-product, char, can simultaneously reduce 3.1 million tonnes of global CO2 emissions while used as coal substitute. Yield of bio-liquid extremely exceed commercial disinfectant with just 1 % wheat straw utilisation, which meet the demand of processing solid waste. Further, their costs are significantly lower than commercial disinfectants, which are suitable for developing countries. Therefore, the antiviral bio-liquid produced from agricultural straw can be a new way to meet the needs of preventing the spread of SARS-CoV-2 and resume the sustainable development of society.
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Affiliation(s)
- Hua Shang
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Wang Zhao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
| | - Xiaokai Zhang
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, 215009, China.
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17
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He Y, Zheng H. How does environmental regulation affect industrial structure upgrading? Evidence from prefecture-level cities in China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 331:117267. [PMID: 36642042 DOI: 10.1016/j.jenvman.2023.117267] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/27/2022] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
This study examines whether and how environmental regulation affects industrial structure upgrading with a panel data of 270 cities between 2006 and 2019. We first adopt two indicators-rationalization and advancement-to quantify industrial structure upgrading and then use kernel density estimation as well as trend surface analysis to investigate these indicators' spatial-temporal pattern. With a spatial Durbin model, we find that environmental regulation has inverted U-shaped and U-shaped direct impacts on rationalization and advancement, and inverted U-shaped indirect impacts on both rationalization and advancement in neighboring regions. Moreover, our subsample tests demonstrate that environmental regulation has various impacts on industrial structure upgrading in different regions. Last, a mediating effect analysis shows that technological innovation is an important path for environmental regulation to promote advancement. Our study provides new evidence for the Porter hypothesis, and offers suggestions for the authorities to formulate and optimize environmental regulation intensity.
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Affiliation(s)
- Yu He
- School of Finance, Chongqing Technology and Business University. 19 Xuefu Road, Nan'an District, Chongqing, 400067, China.
| | - Huan Zheng
- School of Economics and Management, Chongqing Jiaotong University. 66 Xuefu Road, Nan'an District, Chongqing, 400074, China.
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18
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Zhu Z, Su L, Zhang M, Lu L, Wu T, Zhou T. Waste reclamation from municipal solid waste for the cost-efficient treatment of landfill leachate with a novel biological trickle reactor system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 865:161129. [PMID: 36587683 DOI: 10.1016/j.scitotenv.2022.161129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Mature landfill leachate (MLL) would be a tough nut to crack, how to realize waste reclamation while deal with the intractable by-products deserves for more considerations. In this study, a novel system, equipped with two biological trickle reactors developed by inert wastes and a connected organic feeder using waste-recycling rotten banana powder, was established for treating MLL. Results indicated that superior pollutant removal performance and long-term stability were achieved by this system, with only COD and TN concentrations slightly higher than the relevant standard limits. But the shortage about poor resistance to shock pollution loads, was underlined by the fluctuation of water quality. Anaerobic condition and carbon source supplementation contributed to more microbial similarities but less community richness and diversity among inert fillings, and the selective enrichment of denitrification and organic-degrading strains simultaneously occurred. The comparisons with common processes demonstrated that this system was a cost-efficient choice for MLL treatment.
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Affiliation(s)
- Zihan Zhu
- The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
| | - Lianghu Su
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, 8 Jiangwangmiao Street, Nanjing 210042, PR China
| | - Meilan Zhang
- Shanghai Institute of Pollution Control and Ecological Security, 1515 North Zhongshan Rd. (No. 2), Shanghai 200092, PR China
| | - Lu Lu
- Shanghai Chengtou Environment Group Co., Ltd., Shanghai 200060, China
| | - Tong Wu
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Tao Zhou
- The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, 1515 North Zhongshan Rd. (No. 2), Shanghai 200092, PR China.
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19
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Xu L, Shu Z, Song J, Li T, Zhou J. Waste bamboo framework decorated with α-FeOOH nanoneedles for effective arsenic (V/III) removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160951. [PMID: 36528951 DOI: 10.1016/j.scitotenv.2022.160951] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Arsenic pollution of water is one of the severest environmental challenges for human health, and adsorption is the most often used technique in investigations of selective As removal. However, the development of low-cost and easily recoverable adsorbent for aqueous arsenic adsorption remains a challenge. In this work, the α-FeOOH-decorated monolith bamboo composites (α-FeOOH/MB) were fabricated via directly decorating α-FeOOH nanoneedles on the waste bamboo framework without pre‑carbonization. As expected, the as-prepared α-FeOOH/MB exhibits considerably increased adsorption capacity for aqueous arsenic over pure α-FeOOH nanoneedles, with increases of 1.88 and 1.52 times for As(V) and As(III), respectively. Meanwhile, the α-FeOOH/MB composites exhibit positive reusability (recovering 89.73 % and 80.17 % adsorption capacity for As(V) and As(III) after 5 cycles) and are easy to separate after water treatment. Furthermore, the α-FeOOH/MB composites exhibit high arsenic adsorption selectivity even in the presence of competing anions. Overall, the as-obtained α-FeOOH/MB composites, reuse of waste bamboo, are a kind of favorable candidate for arsenic decontamination in practical application owing to the high adsorption capacity, low-cost and facile separation features.
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Affiliation(s)
- Lina Xu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China
| | - Zhu Shu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China; Hubei Three Gorges Laboratory, 1 Mazongling Road, Yichang 443007, China
| | - Jingyang Song
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China
| | - Tiantian Li
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China
| | - Jun Zhou
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China; Hubei Three Gorges Laboratory, 1 Mazongling Road, Yichang 443007, China.
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20
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Jiabao Q, Zhan Q, Hongyu C, Zhihua W, Qi H, Yuxin Z, Hong Z, Yidi G, Ying Z, Xianze W, Suiyi Z. Pyrometallurgy treatment of electroplating sludge, emulsion mud and coal ash: ZnAlFeO 4 spinel separation and stabilization in calcium metasilicate glass. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 329:117101. [PMID: 36566727 DOI: 10.1016/j.jenvman.2022.117101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Electroplating sludge was a hazardous waste comprised of heavy metals and other Fe/Al/Ca/Si impurities, and produced massively in surface treatment industry. In the past, it was commonly purified via hydrometallurgy, chlorination and reduction calcination routes, but also blended as additive in rotary kiln, to stabilize the heavy metals in geopolymer. Herein, an alternative strategy was developed to treat a real electroplating sludge for recycling magnetic Zn-rich spinel and stabilizing Zn in calcium metasilicate glass via a facile pyrometallurgy route with the blending of emulsion mud and coal ash. The sludge contained 35.6% Zn and 0.54% Cr and then was blended with 50% emulsion mud. After calcination at 1200 °C, the product was highly dispersed, whilst octahedral ZnAlFeO4 spinel with Zn content of 40.0% were formed and separated by using magnet, in accordance with the recycling efficiency of 51.2% Zn from the electroplating sludge. But after calcination at 1400 °C, the gypsum in emulsion mud was decomposed as CaO and accelerated the dissolution of Si-bearing substance as calcium metasilicate glass for covering ZnAlFeO4 spinel, resulting in the Zn leaching of 1568 mg/L. By adding 50% Si-rich coal ash in the calcination system, more calcium metasilicate glass were generated, and then the Zn concentration in the toxic leaching test was only 12.09 mg/L. During the calcination, Cr showed similar performance to Al/Fe and involved in the spinel formation. This provided a new route to recycle Zn from Zn-rich electroplating sludge and to solidify heavy metals via calcium metasilicate glass route.
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Affiliation(s)
- Qin Jiabao
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China
| | - Qu Zhan
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China
| | - Chen Hongyu
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China; College of Resources and Environment, Zhongkai University of Agriculture and Engineering, 501 Zhongkai-road, Guangzhou, China
| | - Wang Zhihua
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China; Henan-Tuoren Medical Equipment Group Co., Ltd, Menggang-town, Changyuan, China
| | - Han Qi
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China
| | - Zhang Yuxin
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China
| | - Zhang Hong
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China
| | - Gao Yidi
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China
| | - Zhang Ying
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China
| | - Wang Xianze
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China
| | - Zhu Suiyi
- Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection, Northeast Normal University, Changchun, China; College of Resources and Environment, Zhongkai University of Agriculture and Engineering, 501 Zhongkai-road, Guangzhou, China.
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21
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Liu X, Zhang H, Zhang X, Yang Y, Yang C, Zhao P, Dong Y. Chloride removal from flue gas desulfurization wastewater through Friedel's salt precipitation method: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 862:160906. [PMID: 36521621 DOI: 10.1016/j.scitotenv.2022.160906] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/02/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
As a high efficiency method for chloride removal, Friedel's salt precipitation (FSP) method has attracted much attention in zero liquid discharge (ZLD) of flue gas desulfurization (FGD) wastewater. This review provides comprehensive knowledge of FSP method for chloride removal through analysis of the evolution, reaction mechanisms and influential factors, and describes the recent research progress. FSP method is a cost-efficient technology to remove chloride from saline wastewater by adding lime and aluminate. Chloride ions react with the precipitants by adsorption or/and ion exchange to form Friedel's salt, which is affected by the reaction conditions including reaction time, temperature, interferential ions, etc. The effluent of this process can be reused as the makeup water of desulfurization tower, and the dechloridation precipitates can be reclaimed as adsorption materials and sludge conditioners. That can not only offset a fraction of the treatment cost, but also avoid secondary pollution, so ZLD of FGD wastewater can be achieved. This paper summarizes the deficiencies and potential improvement measures of FSP method. We believe this technology is a promising way to achieve ZLD of FGD wastewater and other wastewater containing chloride, and expect FSP method would become more mature and be widely applied in hypersaline wastewater treatment in the foreseeable future.
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Affiliation(s)
- Xiao Liu
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China
| | - Hao Zhang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China
| | - Xiaoyang Zhang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China
| | - Yanchun Yang
- Guoneng (Shandong) Energy & Environment Co. Ltd., Jinan 250012, Shandong, China
| | - Chunzhen Yang
- Guoneng (Shandong) Energy & Environment Co. Ltd., Jinan 250012, Shandong, China
| | - Pei Zhao
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China.
| | - Yong Dong
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China.
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Lin C, Liang S, Yang X, Yang Q. Toxicity monitoring signals analysis of selenite using microbial fuel cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 862:160801. [PMID: 36493832 DOI: 10.1016/j.scitotenv.2022.160801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/27/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Microbial fuel cells (MFCs) based biosensors are widely studied to environmental monitoring. The suitable responsive signal is important for microbial electrochemical sensors. However, the responsive signals of toxins have not been investigated in detail. Using sodium selenite as a toxic substance, the different response signals are analyzed over a concentration range from 0 to 150 mg/L in the double chambered. The output voltage and power density had the opposite trend between 0 and 2.5 mg/L and 2.5-150 mg/L. To analyze the reasonable signal of Se(IV) monitoring sensor, correlation analysis of concentrations and responsive signal data (maximum voltage, maximum power density, coulombic recovery, coulombic efficiency, and normalized energy recovery, etc.) has been accomplished. The high concentration of exogenous selenite (2.5-100 mg/L) is negatively correlated with maximum voltage (r = -0.901, p < 0.01) and max power density (r = -0.910, p < 0.01). The low concentration of exogenous selenite is positively correlated with average voltage, max power density, coulombic yield (r = 0.973, 0.999 and 0.975, respectively. p < 0.05). Furthermore, Illumina sequencing results indicate that the addition of sodium selenite solution changes the anode community structure, thereby affecting the removal efficiency of organic matter, which may be the reason why coulombic efficiency and normalized energy recovery are not suitable as sensing signal. Overall, based on the analysis of experimental data, the maximum power density is the best response signal, which provides a reference for the selection of sensor response signal based on microbial fuel cells.
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Affiliation(s)
- Chunyang Lin
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Shengna Liang
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Xiaojing Yang
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Qiao Yang
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China.
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Sinha R, Ghosal PS. A comprehensive appraisal on status and management of remediation of DBPs by TiO 2 based-photocatalysts: Insights of technology, performance and energy efficiency. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 328:117011. [PMID: 36525732 DOI: 10.1016/j.jenvman.2022.117011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/08/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Disinfection has been acknowledged as an inevitable technique in water treatment. However, an inadvertent consequence of generation of carcinogenic and mutagenic disinfection byproducts (DBPs) is associated with the reaction of disinfectants and natural organic matter (NOM) present in water. More than 700 DBPs have been identified in drinking water. The conventional processes carried out in WTPs do not optimally ensure NOM elimination, which evokes the need for the incorporation of other processes. In this context, several physicochemical and advanced oxidation processes (AOP), such as adsorption, membrane techniques, photocatalysis, etc., have been studied for the removal of NOM from water. Photocatalysis using semiconductors has been one of the most proficient technologies, which utilizes light energy for the degradation of recalcitrant organics. The present study aims to provide a comprehensive appraisal on the performance of titanium dioxide (TiO2) based photocatalysts in the remediation of DBPs concerning the efficacy and energy requirements of the system. Furthermore, the effect of process parameters, such as pH, catalyst dose, light intensity, etc. on the efficacy of the process was also studied. It was observed that conventional P25-TiO2 powders were efficient in the degradation of dissolved organic carbon (DOC) (up to 90%). However, low photocatalytic activity under visible light activation is one of its significant downsides. Several modifications on the catalyst surface in many studies exhibited advantages, such as high humic acid (HA) degradation under visible light. Furthermore, doped TiO2 catalysts have shown high total organic carbon (TOC) degradation. The photocatalytic systems have achieved a better decrease in trihalomethane formation potential (THMFP) when compared to haloacetic acid formation potential (HAAFP). The energy requirements of the photocatalytic systems are determined by electrical energy per order (EE/O), which has been observed to be lesser for doped TiO2 and engineered TiO2 catalysts when compared with P25-TiO2 powders. Carbon, iron, silver, etc., based catalysts can be a promising alternative to TiO2-based photocatalysts for the degradation of NOM, although further research is required in this direction. The present review provides critical highlights on the uses, opportunities, and challenges of TiO2-based photocatalytic techniques for the management of DBPs and their precursors pertaining to an emerging area of water treatment.
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Affiliation(s)
- Rupal Sinha
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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24
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Nazloo EK, Moheimani NR, Ennaceri H. Graphene-based catalysts for biodiesel production: Characteristics and performance. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160000. [PMID: 36368383 DOI: 10.1016/j.scitotenv.2022.160000] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/21/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Biodiesel is a promising alternative to reduce the dependency on fossil fuels. However, biodiesel's cost is still higher than its petroleum counterpart, hence its production process must be modified to make it economically viable. Microalgae are an alternative feedstock to replace agricultural crops for biodiesel production, and offer several advantages such as fast growth, use of non-arable land, growth in saline and wastewater, and high lipid yield. Unfortunately, biodiesel production from microalgae is very energy-intensive and costly, mainly due to the high energy consumption required for dewatering and drying. Therefore, utilizing wet microalgal biomass instead of dry biomass can be a promising solution to reduce the biodiesel production cost Furthermore, the use of heterogeneous catalysts offers high efficiency, recoverability, and reusability, and is therefore very promising from the economic and environmental perspectives. The unique characteristics of graphene-based nano-catalysts, such as their high surface area, two-dimensional structure, and functional groups, make them suitable candidates for biodiesel production. In this review, the use of graphene-based catalysts for biodiesel production is analyzed in depth, and their efficiency compared to other heterogeneous catalysts is scrutinized. Moreover, their recoverability, reusability, and economic feasibility are critically discussed, and their potential to produce biodiesel from wet microalgae is explored as a sustainable and cost-effective approach.
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Affiliation(s)
- Ehsan Khorshidi Nazloo
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Navid Reza Moheimani
- Algae R&D Centre, Murdoch University, Murdoch, Western Australia 6150, Australia; Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Perth 6150, Australia
| | - Houda Ennaceri
- Algae R&D Centre, Murdoch University, Murdoch, Western Australia 6150, Australia; Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Perth 6150, Australia.
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25
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Dong X, Zhu L, Wu R, Li C, Li D. Is there a significant difference in microbiota between water and microplastic surfaces in winter? The possibility of spreading offshore into the ocean. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159769. [PMID: 36309272 DOI: 10.1016/j.scitotenv.2022.159769] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/19/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Environmental problems caused by microplastics (MPs) are attracting global attention. The ecological risks of bacteria attached to MPs have not been studied in detail under low temperature conditions. Here, MPs in surface water were sampled in winter from the Changjiang (or Yangtze) River Estuary. The physical and chemical characteristics of the MPs were identified, and the diversity and species composition of bacteria on the surface water MPs were analyzed. Phenotypic prediction analysis was used to analyze the potential risk of bacteria in the biofilm on the surfaces of MPs. The main chemical composition in the MPs in the surface water were PP (polypropylene), PE (polyethylene), PS (polystyrene) and other light weight MPs. Sampling sites played a decisive role in the bacterial species composition. The potential plastic-degrading bacterium Acinetobacter and the potential pathogenic bacterium Pseudomonas showed significant differences across different sampling sites. Microbial communities on the surfaces of MPs in winter were not significantly different from planktonic bacteria in the water body. Phenotypic prediction results showed that bacteria on the surface of MPs had a marked capacity to form biofilms, but a low pathogenicity risk. Based on the results of biodiversity analysis and phenotypic prediction, the potential ecological risk of bacteria in biofilms on MP surfaces is lower at low temperatures. In addition, the numerical simulation results show that the possibility of bacteria attached to MPs from the Changjiang River entering the Pacific Ocean in winter is small. MPs attached bacteria in the Changjiang estuary have low ecological risk to the estuary and the Pacific Ocean in winter.
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Affiliation(s)
- Xuri Dong
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Plastic Marine Debris Research Center, East China Normal University, Shanghai 200241, China; Region Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, 200241, China
| | - Lixin Zhu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Plastic Marine Debris Research Center, East China Normal University, Shanghai 200241, China; Region Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, 200241, China
| | - Ruiming Wu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
| | - Changjun Li
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Plastic Marine Debris Research Center, East China Normal University, Shanghai 200241, China; Region Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, 200241, China
| | - Daoji Li
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Plastic Marine Debris Research Center, East China Normal University, Shanghai 200241, China; Region Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, 200241, China.
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26
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Lin B, Yang M. Choosing the right policy: Factors influencing the preferences of consumption-side personal carbon reduction policies. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116706. [PMID: 36402018 DOI: 10.1016/j.jenvman.2022.116706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/30/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
With the development of the social economy and the improvement of personal income, the government must consider formulating personal carbon reduction policies to reduce carbon emissions from the consumption side. Therefore, it is valuable to understand the public's preferences for different policies and the factors influencing the willingness of policy support, which can help policy selection and promotion. Using data collected from 2801 college students and a multinomial logit model, this study explores the influence of personal and social factors on preferences for three different personal carbon reduction policies (personal carbon trading, carbon tax, and carbon generalized system of preferences). The results show that individuals with higher levels of affluence, social trust, and social norms prefer personal carbon trading; individuals with higher levels of affluence, self-motivation, and social norms prefer carbon tax; individuals with higher levels of low-carbon behavioral attitudes and social trust prefer carbon generalized system of preferences; and low-carbon responsibility, access to low-carbon information, and social equity are beneficial to all three policies. In addition, this study examined the heterogeneity of individuals with different levels of affluence and low-carbon behavioral attitudes. This study compares the differences in influencing factors of policy preferences, clarifies the effects of various personal and social factors, which can help the government to design consumption-side personal carbon reduction policies in the future, and provide a reference for the promotion of corresponding policies.
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Affiliation(s)
- Boqiang Lin
- School of Management, China Institute for Studies in Energy Policy, Xiamen University, Fujian, 361005, China; Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China.
| | - Mengqi Yang
- School of Management, China Institute for Studies in Energy Policy, Xiamen University, Fujian, 361005, China.
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Shah S, Zhang SS, Elgizawy KK, Yan WH, Tang N, Wu G, Yang FL. Diallyl trisulfide reduced the reproductive capacity of male Sitotroga cerealella via the regulation of juvenile and ecdysone hormones. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114304. [PMID: 36403303 DOI: 10.1016/j.ecoenv.2022.114304] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/21/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Environmental pollution and resistance in animals are major concerns for the application of synthetic pesticides. Diallyl trisulfide (DAT), an active compound in garlic essential oil, is a novel tool for active and safe control of agricultural insect pests. In this study, we analysed the effects of DAT (0.01 μL/L) on the protein content in male reproductive tissues (accessory glands, ejaculatory ducts, and testis), and juvenile hormone (JH) and ecdysone titres in a highly detrimental pest of stored products, Sitotroga cerealella. Evaluation of the expression profile of JH and ecdysone pathway-related genes in various tissues indicated that the accessory gland protein and ecdysone titres were markedly decreased after DAT fumigation, whereas the testis protein content and JH titre were increased. However, the protein content of the ejaculatory ducts remained unchanged between the treated and control groups. Further investigation revealed that DAT disrupted the mRNA expression of key enzymes involved in JH and ecdysone pathways. While increased mRNA levels of juvenile hormone acid O-methyltransferase (JHMAT) and Kruppel homologue 1 (Kr-h1) were observed after 4 and 7 h of DAT fumigation, the levels of juvenile hormone epoxide hydrolase (JHEH) were substantially reduced 3 h post-fumigation. mRNA levels of the ecdysone-responsive gene, FTZF1, and cytochrome P450 enzyme, CYP315A1, were notably decreased at 7 h and 4 h, respectively, post-fumigation, whereas CYP314A1 and CYP302A1 mRNA levels decreased after 3 h and 4 h, respectively. While DAT fumigation disrupted sperm number in the testis, ejaculatory ducts, and seminal vesicles, topical application of the 20-hydroxyecdysone (20E) analogue also lowered sperm number in the ejaculatory ducts. Topical application of methoprene, a JH analogue, increased the protein content in the testes, but not in the accessory glands or ejaculatory ducts. However, the survival rate was not affected by the topical application of methoprene or 20E. These data suggest that DAT regulates JH and ecdysone via its molecular pathway genes and modulates endocrine secretion during the male reproductive process.
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Affiliation(s)
- Sakhawat Shah
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070 Wuhan, Hubei, People's Republic of China
| | - Su-Su Zhang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070 Wuhan, Hubei, People's Republic of China
| | - Karam Khamis Elgizawy
- Plant Protection Department, Faculty of Agriculture, Benha University, Moshtohor, Toukh 13736, Egypt
| | - Wen-Han Yan
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070 Wuhan, Hubei, People's Republic of China
| | - Ning Tang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070 Wuhan, Hubei, People's Republic of China
| | - Gang Wu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070 Wuhan, Hubei, People's Republic of China
| | - Feng-Lian Yang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070 Wuhan, Hubei, People's Republic of China.
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Zhang K, Khan Z, Yu Q, Qu Z, Liu J, Luo T, Zhu K, Bi J, Hu L, Luo L. Biochar Coating Is a Sustainable and Economical Approach to Promote Seed Coating Technology, Seed Germination, Plant Performance, and Soil Health. PLANTS (BASEL, SWITZERLAND) 2022; 11:2864. [PMID: 36365318 PMCID: PMC9657824 DOI: 10.3390/plants11212864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/14/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Seed germination and stand establishment are the first steps of crop growth and development. However, low seed vigor, improper seedbed preparation, unfavorable climate, and the occurrence of pests and diseases reduces the germination rate and seedling quality, resulting in insufficient crop populations and undesirable plant growth. Seed coating is an effective method that is being developed and applied in modern agriculture. It has many functions, such as improving seed vigor, promoting seedling growth, and reducing the occurrence of pests and diseases. Yet, during seed coating procedures, several factors, such as difficulty in biodegradation of coating materials and hindrance in the application of chemical ingredients to seeds, force us to explore reliable and efficient coating formulations. Biochar, as a novel material, may be expected to enhance seed germination and seedling establishment, simultaneously ensuring agricultural sustainability, environment, and food safety. Recently, biochar-based seed coating has gained much interest due to biochar possessing high porosity and water holding capacity, as well as wealthy nutrients, and has been proven to be a beneficial agent in seed coating formulations. This review presents an extensive overview on the history, methods, and coating agents of seed coating. Additionally, biochar, as a promising seed coating agent, is also synthesized on its physico-chemical properties. Combining seed coating with biochar, we discussed in detail the agricultural applications of biochar-based seed coating, such as the promotion of seed germination and stand establishment, the improvement of plant growth and nutrition, suitable carriers for microbial inoculants, and increase in herbicide selectivity. Therefore, this paper could be a good source of information on the current advance and future perspectives of biochar-based seed coating for modern agriculture.
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Affiliation(s)
- Kangkang Zhang
- MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Shanghai Agrobiological Gene Center, No. 2901 Beidi Road, Shanghai 201106, China
| | - Zaid Khan
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Qing Yu
- MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Shanghai Agrobiological Gene Center, No. 2901 Beidi Road, Shanghai 201106, China
| | - Zhaojie Qu
- MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiahuan Liu
- MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tao Luo
- MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Kunmiao Zhu
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-products, Institute of Quality Standard and Testing Technology for Agro-Products, Hubei Academy of Agricultural Sciences, Wuhan 430072, China
| | - Junguo Bi
- Shanghai Agrobiological Gene Center, No. 2901 Beidi Road, Shanghai 201106, China
| | - Liyong Hu
- MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lijun Luo
- Shanghai Agrobiological Gene Center, No. 2901 Beidi Road, Shanghai 201106, China
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