1
|
Němcová K, Lhotský O, Stavělová M, Komárek M, Semerád J, Filipová A, Najmanová P, Cajthaml T. Effects of different organic substrate compositions on the decontamination of aged PAH-polluted soils through outdoor co-composting. CHEMOSPHERE 2024; 362:142580. [PMID: 38866336 DOI: 10.1016/j.chemosphere.2024.142580] [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: 01/12/2024] [Revised: 05/25/2024] [Accepted: 06/08/2024] [Indexed: 06/14/2024]
Abstract
The effects of different organic substrate compositions on the efficiency of outdoor co-composting as a bioremediation technology for decontaminating soil polluted by polycyclic aromatic hydrocarbons (PAHs) were investigated. Four different substrate mixtures and two different aged PAH-contaminated soils were used in a semi-pilot-scale experiment that lasted nearly 700 days. The two soils (A and B) differed concerning both the initial concentrations of the Ʃ16 US EPA PAHs (5926 vs. 369 mg kg-1, respectively) and the type of predominant PAH group by molecular weight. The experiments revealed that while the composition of the organic substrate had an impact on the rate of PAH degradation, it did not significantly influence the final extent of PAH degradation. Notably, the organic substrate consisting of green waste and wood chips (GW) was found to facilitate the most rapid rate of PAH degradation (first-order rate constant k = 0.033 ± 0.000 d-1 with soil A over the initial 42 days of the experiment and k = 0.036 ± 0.000 d-1 with soil B over the initial 56 days). Despite the differences in organic substrate compositions and types of soil being treated, PAH degradation levels exceeded at least 95% in all the treatments after more than 680 days of co-composting. Regardless of the composition, the removal of low- and medium- molecular-weight (2-4 rings) PAHs was nearly complete by the end of the experiment. Furthermore, high-molecular-weight PAHs (5 rings and more) were significantly degraded during co-composting, with reductions ranging from 54% to 79% in soil A and from 59% to 68% in soil B. All composts were dominated by Proteobacteria, Firmicutes, and Actinobacteria, with significant differences in abundance between soils. Genera with PAH degradation potentials were detected in all samples. The results of a battery of toxicity tests showed that there was almost no toxicity associated with the final composts.
Collapse
Affiliation(s)
- Kateřina Němcová
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic; Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic
| | - Ondřej Lhotský
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic; Dekonta, a.s., Dřetovice 109, CZ-273 42, Stehelčeves, Czech Republic
| | - Monika Stavělová
- AECOM CZ s.r.o., Trojská 92, CZ-171 00, Prague 7, Czech Republic
| | - Michael Komárek
- Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, CZ-165 00, Prague - Suchdol, Czech Republic
| | - Jaroslav Semerád
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic
| | - Alena Filipová
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic; Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic
| | - Petra Najmanová
- Dekonta, a.s., Dřetovice 109, CZ-273 42, Stehelčeves, Czech Republic
| | - Tomáš Cajthaml
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic; Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague 4, Czech Republic.
| |
Collapse
|
2
|
Agnello AC, Peluffo M, Di Clemente NA, Del Panno MT. Sequential oxidation-composting-phytoremediation treatment for the management of an oily sludge from petroleum refinery. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 360:121142. [PMID: 38749127 DOI: 10.1016/j.jenvman.2024.121142] [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: 12/22/2023] [Revised: 04/22/2024] [Accepted: 05/09/2024] [Indexed: 06/05/2024]
Abstract
Oily sludges are generated in large quantities in petroleum refinery wastewater treatment plants. Given their complex composition, they are classified as hazardous waste. Selecting a single treatment technique for their remediation is challenging. This work aims to assess the extent of composting followed by phytoremediation on an oily sludge from an API separator unit, pre-treated by chemical oxidation with alkaline activated persulfate (PS). 18% of total petroleum hydrocarbons (TPH) were determined by IR spectroscopy. The aliphatic hydrocarbon content was 4714 ± 250 ppm by GC-FID, and aromatics were not detectable, suggesting a high amount of non-chromatographable complex hydrocarbons. The density of generalist and hydrocarbon-degrading populations of the oily sludge estimated by quantitative polymerase chain reaction (qPCR) evidenced an autochthonous microbiota with hydrocarbon-degrading capacity. The oxidative treatment with PS removed 31% of the TPH determined by IR after 20 days. The significant reduction of the native bacterial community was counterbalanced by coupling a composting treatment. Co-composting the sludge with goat manure and oat straw produced, after a year, a 96% reduction in TPH content, regardless of the oxidative pretreatment. Organic matter transformation was evidenced by the decrease of dissolved organic carbon (DOC) and the variation in E4/E6 ratio. The matrices obtained of composting were used as substrates for phytoremediation for 4 months. Ryegrass seeds were planted in both PS-treated and untreated sludge substrates. The presence of the plant grown in the pre-oxidised and composted substrate resulted in a higher aerial biomass of ryegrass (67%), an increase in enzymatic activities, and higher concentration of DOC, although without evidence of additional dissipation of TPH. The dynamics of the bacterial communities of the different substrates generated during the biological treatment were analyzed by Illumina NovaSeq DNA sequencing of 16S rRNA amplicons. The findings mirrored a succession compatible with that described in contaminated matrices, but also in other non-contaminated ones. According to these findings, an organic matter transformation process occurred, which included the complex hydrocarbons of the oily sludge, resulting in an active substrate that promoted the retention of nutrients and water and provided the necessary support for plant development.
Collapse
Affiliation(s)
- Ana Carolina Agnello
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI, CONICET-UNLP), La Plata, Argentina.
| | - Marina Peluffo
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI, CONICET-UNLP), La Plata, Argentina
| | - Natalia Andrea Di Clemente
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI, CONICET-UNLP), La Plata, Argentina
| | - María Teresa Del Panno
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI, CONICET-UNLP), La Plata, Argentina
| |
Collapse
|
3
|
Medina R, David Gara PM, Rosso JA, Del Panno MT. Effects of organic matter addition on chronically hydrocarbon-contaminated soil. Biodegradation 2021; 32:145-163. [PMID: 33586077 DOI: 10.1007/s10532-021-09929-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 01/08/2021] [Accepted: 01/22/2021] [Indexed: 11/26/2022]
Abstract
Soil is the recipient of organic pollutants as a consequence of anthropogenic activities. Hydrocarbons are contaminants that pose a risk to human and environmental health. Bioremediation of aging contaminated soils is a challenge due to the low biodegradability of contaminants as a result of their interaction with the soil matrix. The aim of this work was to evaluate the effect of both composting and the addition of mature compost on a soil chronically contaminated with hydrocarbons, focusing mainly on the recovery of soil functions and transformations of the soil matrix as well as microbial community shifts. The initial pollution level was 214 ppm of polycyclic aromatic hydrocarbons (PAHs) and 2500 ppm of aliphatic hydrocarbons (AHs). Composting and compost addition produced changes on soil matrix that promoted the release of PAHs (5.7 and 15 % respectively) but not the net PAH elimination. Interestingly, composting stimulated AHs elimination (about 24 %). The lack of PAHs elimination could be attributed to the insufficient PAHs content to stimulate the microbial degrading capacity, and the preferential consumption of easily absorbed C sources by the bacterial community. Despite the low PAH catabolic potential of the aging soil, metabolic shift was driven by the addition of organic matter, which could be monitored by the ratio of Proteobacteria to Actinobacteria combined with E4/E6 ratio. Regarding the quality of the soil, the nutrients provided by the exogenous organic matter contributed to the recovery of the global functions and species diversity of the soil along with the reduction of phytotoxicity.
Collapse
Affiliation(s)
- Rocío Medina
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), CONICET- UNLP, La Plata, Argentina.
- Centro de Investigación de Fitopatologías (CIDEFI), CICBA - UNLP, La Plata, Argentina.
| | - Pedro M David Gara
- Centro de Investigaciones Ópticas (CIOp), CONICET - CICBA - UNLP, La Plata, Argentina
| | - Janina A Rosso
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CONICET- UNLP, La Plata, Argentina
| | - María T Del Panno
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), CONICET- UNLP, La Plata, Argentina
| |
Collapse
|
4
|
Bioremediation of PAH-Contaminated Soils: Process Enhancement through Composting/Compost. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10113684] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Bioremediation of contaminated soils has gained increasing interest in recent years as a low-cost and environmentally friendly technology to clean soils polluted with anthropogenic contaminants. However, some organic pollutants in soil have a low biodegradability or are not bioavailable, which hampers the use of bioremediation for their removal. This is the case of polycyclic aromatic hydrocarbons (PAHs), which normally are stable and hydrophobic chemical structures. In this review, several approaches for the decontamination of PAH-polluted soil are presented and discussed in detail. The use of compost as biostimulation- and bioaugmentation-coupled technologies are described in detail, and some parameters, such as the stability of compost, deserve special attention to obtain better results. Composting as an ex situ technology, with the use of some specific products like surfactants, is also discussed. In summary, the use of compost and composting are promising technologies (in all the approaches presented) for the bioremediation of PAH-contaminated soils.
Collapse
|
5
|
Liu M, Cao J, Wang C. Bioremediation by earthworms on soil microbial diversity and partial nitrification processes in oxytetracycline-contaminated soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:109996. [PMID: 31785943 DOI: 10.1016/j.ecoenv.2019.109996] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 11/16/2019] [Accepted: 11/20/2019] [Indexed: 06/10/2023]
Abstract
A large proportion (60-90%) of ingested tetracyclines are released to slurry, soils, surface waters and ground water, which has raised extensive concerns and may pose a risk to the soil ecosystem. A 56-day experiment was conducted to study the bioremediation by earthworms on soil microbial diversity and partial nitrification processes in oxytetracycline (OTC)-contaminated soil. The results showed that high OTC concentration significantly decreased the activity of soil bacteria, ammonia-oxidizing bacteria (AOB) and archaea (AOA). Earthworms were found to accelerate the degradation efficiency and rate of OTC, and its main metabolites were 4-epi-oxytetracycline (EOTC) and 2-acetyl-2-decarboxamido-oxytetracycline (ADOTC). Earthworms had an important role in the bioremediation of soil microbial diversity by degrading OTC and its metabolite (EOTC), especially in the high OTC condition. Additionally, the results indicated that the effects of earthworms on the degradation of OTC could remediate the abundances of 16S rRNA and AOB amoA genes and the NO3- content in both low and high OTC-contaminated soils. The structural equation model suggested that earthworms could remediate the microbial diversity, the abundances of 16s rRNA and AOB amoA genes by accelerating the degradation of OTC, which contributed to the bioremediation by earthworms on soil microbial diversity and partial nitrification processes in oxytetracycline-contaminated soil.
Collapse
Affiliation(s)
- Mengli Liu
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing, 100193, China; Key Laboratory of Plant-Soil Interactions, MOE, Beijing, 100193, China
| | - Jia Cao
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing, 100193, China; Key Laboratory of Plant-Soil Interactions, MOE, Beijing, 100193, China
| | - Chong Wang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing, 100193, China; Key Laboratory of Plant-Soil Interactions, MOE, Beijing, 100193, China.
| |
Collapse
|
6
|
TREJOS-DELGADO CATALINA, CADAVID-RESTREPO GLORIAE, HORMAZA-ANAGUANO ANGELINA, AGUDELO EDISONA, BARRIOS-ZIOLO LEONARDO, LOAIZA-USUGA JUANCARLOS, CARDONA-GALLO SANTIAGOA. Oil Bioremediation in a Tropical Contaminated Soil Using a Reactor. ACTA ACUST UNITED AC 2020; 92:e20181396. [DOI: 10.1590/0001-3765202020181396] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 04/15/2019] [Indexed: 11/22/2022]
|
7
|
Farber R, Rosenberg A, Rozenfeld S, Banet G, Cahan R. Bioremediation of Artificial Diesel-Contaminated Soil Using Bacterial Consortium Immobilized to Plasma-Pretreated Wood Waste. Microorganisms 2019; 7:E497. [PMID: 31661854 PMCID: PMC6921085 DOI: 10.3390/microorganisms7110497] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/19/2019] [Accepted: 10/26/2019] [Indexed: 11/16/2022] Open
Abstract
Bioaugmentation is a bioremediation option based on increasing the natural in-situ microbial population that possesses the ability to degrade the contaminating pollutant. In this study, a diesel-degrading consortium was obtained from an oil-contaminated soil. The diesel-degrading consortium was grown on wood waste that was plasma-pretreated. This plasma treatment led to an increase of bacterial attachment and diesel degradation rates. On the 7th day the biofilm viability on the plasma-treated wood waste reached 0.53 ± 0.02 OD 540 nm, compared to the non-treated wood waste which was only 0.34 ± 0.02. Biofilm attached to plasma-treated and untreated wood waste which was inoculated into artificially diesel-contaminated soil (0.15% g/g) achieved a degradation rate of 9.3 mg day-1 and 7.8 mg day-1, respectively. While, in the soil that was inoculated with planktonic bacteria, degradation was only 5.7 mg day-1. Exposing the soil sample to high temperature (50 °C) or to different soil acidity did not influence the degradation rate of the biofilm attached to the plasma-treated wood waste. The two most abundant bacterial distributions at the family level were Xanthomonadaceae and Sphingomonadaceae. To our knowledge, this is the first study that showed the advantages of biofilm attached to plasma-pretreated wood waste for diesel biodegradation in soil.
Collapse
Affiliation(s)
- Ravit Farber
- Department of Chemical Engineering and Biotechnology, Ariel University, Ariel 40700, Israel.
| | - Alona Rosenberg
- Department of Chemical Engineering and Biotechnology, Ariel University, Ariel 40700, Israel.
| | - Shmuel Rozenfeld
- Department of Chemical Engineering and Biotechnology, Ariel University, Ariel 40700, Israel.
| | - Gabi Banet
- Dead Sea-Arava Science Center, Arava 86910, Israel.
| | - Rivka Cahan
- Department of Chemical Engineering and Biotechnology, Ariel University, Ariel 40700, Israel.
| |
Collapse
|
8
|
Response surface optimization and effects of agricultural wastes on total petroleum hydrocarbon degradation. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2018. [DOI: 10.1016/j.bjbas.2018.06.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
9
|
Zhu X, Wang W, Sun K, Lin X, Li S, Waigi MG, Ling W. Inoculating wheat (Triticum aestivum L.) with the endophytic bacterium Serratia sp. PW7 to reduce pyrene contamination. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:718-724. [PMID: 28121475 DOI: 10.1080/15226514.2017.1284747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This research was conducted to find an optimal inoculation way for a pyrene-degrading endophytic Serratia sp. PW7 to colonize wheat for reducing pyrene contamination. Three inoculation ways, which are soaking seeds in inocula (TS), dipping roots of seedlings in inocula (TR), and spraying inocula on leaves of seedlings (TL), were used in this study. Inoculated seedlings and noninoculated seedlings (CK) were, respectively, cultivated in Hoagland solutions supplemented with pyrene in a growth chamber. The results showed that strain PW7 successfully colonized the inoculated seedlings in high numbers, and significantly promoted the growth of seedlings (TS and TR). More importantly, strain PW7 reduced pyrene levels in the seedlings and the Hoagland solutions. Compared to the noninoculated seedlings, the pyrene contents of the inoculated seedlings were decreased by 35.7-86.3% in the shoots and by 26.8-60.1% in the roots after 8-day cultivation. By comparing the efficiencies of decreasing pyrene residues, it can be concluded that TR was an optimal inoculation way for endophytic strains to colonize the inoculated plants and to reduce the pyrene contamination. Our findings provide an optimized inoculation way to reduce organic contamination in crops by inoculating plants with functional endophytic bacteria.
Collapse
Affiliation(s)
- Xuezhu Zhu
- a Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing , P.R. China
| | - Wanqing Wang
- a Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing , P.R. China
| | - Kai Sun
- a Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing , P.R. China
| | - Xianghao Lin
- a Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing , P.R. China
| | - Shuang Li
- a Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing , P.R. China
| | - Michael Gatheru Waigi
- a Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing , P.R. China
| | - Wanting Ling
- a Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing , P.R. China
| |
Collapse
|
10
|
Zhu X, Wang W, Crowley DE, Sun K, Hao S, Waigi MG, Gao Y. The endophytic bacterium Serratia sp. PW7 degrades pyrene in wheat. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:6648-6656. [PMID: 28083742 DOI: 10.1007/s11356-016-8345-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 12/28/2016] [Indexed: 06/06/2023]
Abstract
This research was conducted to isolate polycyclic aromatic hydrocarbon-degrading (PAH-degrading) endophytic bacteria and investigate their potential in protecting plants against PAH contamination. Pyrene-degrading endophytic bacteria were isolated from plants grown in PAH-contaminated soil. Among these endophytic bacteria, strain PW7 (Serratia sp.) isolated from Plantago asiatica was selected to investigate the suppression of pyrene accumulation in Triticum aestivum L. In the in vitro tests, strain PW7 degraded 51.2% of the pyrene in the media within 14 days. The optimal biodegradation conditions were pH 7.0, 30 °C, and MS medium supplemented with additional glucose, maltose, sucrose, and peptones. In the in vivo tests, strain PW7 successfully colonized the roots and shoots of inoculated (E+) wheat plants, and its colonization decreased pyrene accumulation and pyrene transportation from roots to shoots. Remarkably, the concentration of pyrene in shoots decreased much more than that in roots, suggesting that strain PW7 has the potential for protecting wheat against pyrene contamination and mitigating the threat of pyrene to human health via food consumption.
Collapse
Affiliation(s)
- Xuezhu Zhu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, People's Republic of China
| | - Wanqing Wang
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, People's Republic of China
| | - David E Crowley
- The Department of Environmental Sciences, University of California, Riverside, CA, USA
| | - Kai Sun
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, People's Republic of China
| | - Shupeng Hao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, People's Republic of China
| | - Michael Gatheru Waigi
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, People's Republic of China
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, People's Republic of China.
| |
Collapse
|
11
|
Peng J, Zhang Y, Su J, Qiu Q, Jia Z, Zhu YG. Bacterial communities predominant in the degradation of 13C(4)-4,5,9,10-pyrene during composting. BIORESOURCE TECHNOLOGY 2013; 143:608-614. [PMID: 23845709 DOI: 10.1016/j.biortech.2013.06.039] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 06/09/2013] [Accepted: 06/12/2013] [Indexed: 06/02/2023]
Abstract
An in-vessel composting bioremediation of (13)C4-4,5,9,10-pyrene and unlabeled pyrene spiked soil amended with fresh wastes was investigated by DNA-based stable isotope probing (SIP) of active bacteria involved. Highest dissipation of (13)C4-pyrene was detected at 55 °C after 42 days composting. The active bacterial communities in the composting changed over time, showing a distinct difference among different stages. α-, β-, γ-Proteobacteria, and Actinobacteria were detected mainly involving in pyrene degradation at 38 °C over 14 days composting. Streptomyces appeared to dominate the pyrene degradation at 55 °C. β- and γ-Proteobacteria and Actinobacteria were the dominant pyrene degraders at 70 °C after 42 days composting and at 38 °C after 60 days composting. The results of this study suggest the pyrene degradation was performed by phylogenetically distinct bacterial guilds from the phyla Actinobacteria and Proteobacteria during in-vessel composition processes.
Collapse
Affiliation(s)
- Jingjing Peng
- Key Laboratory of Urban Environment and Health Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | | | | | | | | | | |
Collapse
|
12
|
Chen B, Yuan M. Enhanced dissipation of polycyclic aromatic hydrocarbons in the presence of fresh plant residues and their extracts. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2012; 161:199-205. [PMID: 22230086 DOI: 10.1016/j.envpol.2011.10.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2011] [Revised: 10/04/2011] [Accepted: 10/26/2011] [Indexed: 05/31/2023]
Abstract
The feasibility of using fresh plant residues and their extracts to stimulate the bio-dissipation of polycyclic aromatic hydrocarbons (PAHs) were highlighted. Wood chip, bamboo leave, orange peel and their water-extractable organic matter (WEOM) were chosen as amendment materials. Effect of WEOM on bio-dissipation (bioaccumulation and biodegradation) of phenanthrene and pyrene from water by two bacteria were investigated. Orange peel extract demonstrated the highest efficiency for stimulating PAHs removal by bacterium B1 (Pseudomonas putida), while bamboo leave extract was the best one to enhance PAHs bio-dissipation by bacterium B2 (unidentified bacterium isolated from PAHs-contaminated soil). Amended the actual contaminated soil with 1% plant residues, PAHs dissipation were increased by 15-20%, 20-39%, 14-24%, 12-23% and 17-26%, respectively, for 2-, 3-, 4-, 5- and 6-ring PAHs via stimulating indigenous microbial degradation activity. Bamboo leave exhibited the most effective one to stimulate dissipation of PAHs in contaminated soil.
Collapse
Affiliation(s)
- Baoliang Chen
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | | |
Collapse
|
13
|
Megharaj M, Ramakrishnan B, Venkateswarlu K, Sethunathan N, Naidu R. Bioremediation approaches for organic pollutants: a critical perspective. ENVIRONMENT INTERNATIONAL 2011; 37:1362-75. [PMID: 21722961 DOI: 10.1016/j.envint.2011.06.003] [Citation(s) in RCA: 366] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 05/30/2011] [Accepted: 06/07/2011] [Indexed: 05/22/2023]
Abstract
Due to human activities to a greater extent and natural processes to some extent, a large number of organic chemical substances such as petroleum hydrocarbons, halogenated and nitroaromatic compounds, phthalate esters, solvents and pesticides pollute the soil and aquatic environments. Remediation of these polluted sites following the conventional engineering approaches based on physicochemical methods is both technically and economically challenging. Bioremediation that involves the capabilities of microorganisms in the removal of pollutants is the most promising, relatively efficient and cost-effective technology. However, the current bioremediation approaches suffer from a number of limitations which include the poor capabilities of microbial communities in the field, lesser bioavailability of contaminants on spatial and temporal scales, and absence of bench-mark values for efficacy testing of bioremediation for their widespread application in the field. The restoration of all natural functions of some polluted soils remains impractical and, hence, the application of the principle of function-directed remediation may be sufficient to minimize the risks of persistence and spreading of pollutants. This review selectively examines and provides a critical view on the knowledge gaps and limitations in field application strategies, approaches such as composting, electrobioremediation and microbe-assisted phytoremediation, and the use of probes and assays for monitoring and testing the efficacy of bioremediation of polluted sites.
Collapse
Affiliation(s)
- Mallavarapu Megharaj
- Centre for Environmental Risk Assessment and Remediation, University of South Australia, SA 5095, Australia
| | | | | | | | | |
Collapse
|
14
|
Jonsson AP, Östberg TL. The effects of carbon sources and micronutrients in whey and fermented whey on the kinetics of phenanthrene biodegradation in diesel contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2011; 192:1171-7. [PMID: 21741168 DOI: 10.1016/j.jhazmat.2011.06.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 06/09/2011] [Accepted: 06/09/2011] [Indexed: 05/25/2023]
Abstract
This paper demonstrates significant effects on phenanthrene degradation in diesel contaminated soil by the addition of organic amendments such as whey and fermented whey. Both amount of amendment added and mode of administration was shown to be decisive. There was a strong positive effect on the (14)C-mineralization of phenanthrene by multiple (bi-weekly) additions of fermented whey 210 mg dw kg(-1) soil dw (FW multi) and also by single dose addition of 2100 mg dw sweet whey kg(-1) soil dw (SW high). The most prominent effects on phenanthrene degradation kinetics were a five to fifteen fold increase in the linear growth term (k(2)) and a 23-27% increase in bioavailability factor S(0) for SW high and FW multi respectively. Also, total mineralization at the end of the experiment increased from 46% in the control to 66 and 71% respectively and the lag time was reduced from 21 to 15 days by multiple addition of fermented whey. The most significant stimulating effects on phenanthrene degradation kinetics could be attributed to lactate and vitamins. This study demonstrates a more complex dependence of carbon sources and growth factors for an aromatic compound such as phenanthrene in comparison to hexadecane.
Collapse
Affiliation(s)
- Anders P Jonsson
- Department of Engineering, and Sustainable Development, Mid Sweden University, SE-83125 Östersund, Sweden.
| | | |
Collapse
|
15
|
Sayara T, Sarrà M, Sánchez A. Effects of compost stability and contaminant concentration on the bioremediation of PAHs-contaminated soil through composting. JOURNAL OF HAZARDOUS MATERIALS 2010; 179:999-1006. [PMID: 20399017 DOI: 10.1016/j.jhazmat.2010.03.104] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2009] [Revised: 03/24/2010] [Accepted: 03/24/2010] [Indexed: 05/25/2023]
Abstract
The objective of this study was to investigate the effect of two factors: the stability degree (0.37-4.55 mg O(2) g(-1) Organic Matter h(-1)) of different composts derived from the organic fraction of municipal solid wastes and the concentration of a complex mixture of PAHs including fluorene, phenanthrene, anthracene, fluoranthene, pyrene and benzo(a)anthracene in the bioremediation of soil. The two factors were systematically studied applying central composite design methodology. The obtained results demonstrated that compost stability degree was particularly important during the first stage of the process. Stable composts enhanced the levels of degradation in soil-compost mixture and a degradation rate of 92% was achieved in this period, but only 40% was degraded with the least stable compost. The PAHs concentration was also important during the process, since the degradation rates increased with the increase in the PAHs concentration. Moreover, all the individual PAHs demonstrated a notable decrease in their concentrations after the incubation period, but pyrene was degraded to lower levels in some treatments compared to others PAHs.
Collapse
Affiliation(s)
- Tahseen Sayara
- Department of Chemical Engineering, Escola d'Enginyeria, Edifici Q, Universitat Autònoma de Barcelona, Campus Bellaterra, Cerdanyola del Velles, 08193-Barcelona, Spain
| | | | | |
Collapse
|