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Wen M, Zhang Q, Li Y, Cui Y, Shao J, Liu Y. Influence of dissolved organic matter on the anaerobic biotransformation of roxarsone accompanying microbial community response. CHEMOSPHERE 2024; 362:142606. [PMID: 38876324 DOI: 10.1016/j.chemosphere.2024.142606] [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: 03/21/2024] [Revised: 05/30/2024] [Accepted: 06/12/2024] [Indexed: 06/16/2024]
Abstract
Roxarsone (ROX), commonly employed as a livestock feed additive, largely remains unmetabolized and is subsequently excreted via feces. ROX could cause serious environmental risks due to its rapid transformation and high mobility in the anaerobic subsurface environment. Dissolved organic matter (DOM) is an important constituent of fecal organics in livestock waste and could affect the ROX biotransformation. Nonetheless, the underlying mechanisms governing the interaction between DOM and ROX biotransformation have not yet been elucidated in the anaerobic environment. In this study, the changes of ROX, metabolites, and microbial biomass in the solutions with varying DOM concentrations (0, 50, 100, 200, and 400 mg/L) under anaerobic environments were investigated during the ROX (200 mg/L) degradation. EEM-PARAFAC and metagenomic sequencing were combined to identify the dynamic shifts of DOM components and the functional microbial populations responsible for ROX degradation. Results indicated that DOM facilitated the anaerobic biotransformation of ROX and 200 mg/L ROX could be degraded completely in 28 h. The tryptophan-like within DOM functioned as a carbon source to promote the growth of microorganisms, thus accelerating the degradation of ROX. The mixed microflora involved in ROX anaerobic degrading contained genes associated with arsenic metabolism (arsR, arsC, acr3, arsA, nfnB, and arsB), and arsR, arsC, acr3 exhibited high microbial diversity. Variations in DOM concentrations significantly impacted the population dynamics of microorganisms involved in arsenic metabolism (Proteiniclasticum, Exiguobacterium, Clostridium, Proteiniphilum, Alkaliphilus, and Corynebacterium spp.), which in turn affected the transformation of ROX and its derivatives. This study reveals the mechanism of ROX degradation influenced by the varying concentrations of DOM under anaerobic environments, which is important for the prevention of arsenic contamination with elevated levels of organic matter.
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Affiliation(s)
- Mengtuo Wen
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China; Key Laboratory of Water and Soil Resources Conservation and Restoration in the Middle and Lower Reaches of Yellow River Basin, MNR, Zhengzhou, 450016, China; Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Xiamen, 361000, China
| | - Qiulan Zhang
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Yasong Li
- Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Xiamen, 361000, China
| | - Yali Cui
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Jingli Shao
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Yaci Liu
- Key Laboratory of Water and Soil Resources Conservation and Restoration in the Middle and Lower Reaches of Yellow River Basin, MNR, Zhengzhou, 450016, China; Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Xiamen, 361000, China.
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2
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Zhang Y, Yan Y, Bai W, Tang R, Su K, Hu ZH. Insight into the transformation of 4-hydroxy-3-aminophenylarsonic acid (HAPA) and its mechanisms under simulated sunlight irradiation. JOURNAL OF HAZARDOUS MATERIALS 2024; 463:132925. [PMID: 37951170 DOI: 10.1016/j.jhazmat.2023.132925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/12/2023] [Accepted: 11/01/2023] [Indexed: 11/13/2023]
Abstract
Four-hydroxy-3-aminophenylarsonic acid (HAPA), the reduced product of roxarsone (4-hydroxy-3-nitro-phenylarsonic acid, ROX) under anaerobic conditions, is resistant to be biologically degraded under anaerobic/anoxic conditions. The transformation of HAPA in aquatic environment under sunlight irradiation is still unknown. In this study, the photodegradation of HAPA and the possible mechanism under simulated sunlight conditions were investigated. The result shows that under visible light irradiation, HAPA wasn't degraded. Under UV254 and UV302 irradiation, about 60% and 30% HAPA were decomposed, while nearly no HAPA was degraded under UV365 irradiation over a period of 240 min. UVC light was the main wavelength for the degradation of HAPA under sunlight conditions. HCO3- and NO3- slightly enhanced the photodegradation, but Cl- and SO42- had a marginal influence on the photodegradation. During the photodegradation, HAPA was decomposed into organic intermediates, inorganic arsenics, ammonia and undetermined arsenic species. Arsenite (As(III)) was the dominant inorganic arsenic species from the photodegradation of HAPA. The mechanism analysis shows that singlet molecular oxygen (1O2) has little influence on the decomposition of HAPA under UV irradiation, but significantly enhanced the conversion of As(III) to arsenate (As(V)).
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Affiliation(s)
- Yixin Zhang
- Anhui Engineering Laboratory of Rural Water Environment and Resource, School of Civil Engineering, Hefei University of Technology, Hefei 230009, PR China
| | - Yingjie Yan
- Anhui Engineering Laboratory of Rural Water Environment and Resource, School of Civil Engineering, Hefei University of Technology, Hefei 230009, PR China
| | - Wenjing Bai
- Anhui Engineering Laboratory of Rural Water Environment and Resource, School of Civil Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Rui Tang
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, PR China
| | - Kuizu Su
- Anhui Engineering Laboratory of Rural Water Environment and Resource, School of Civil Engineering, Hefei University of Technology, Hefei 230009, PR China
| | - Zhen-Hu Hu
- Anhui Engineering Laboratory of Rural Water Environment and Resource, School of Civil Engineering, Hefei University of Technology, Hefei 230009, PR China.
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3
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Wen M, Liu Y, Zhang Q, Liu C, Li Y, Yang Y. Effects of dissolved organic matter derived from chicken manure on the biotransformation of roxarsone in soil. CHEMOSPHERE 2023; 311:137118. [PMID: 36336016 DOI: 10.1016/j.chemosphere.2022.137118] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/12/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
Roxarsone (3-nitro-4-hydroxyphenylarsonic acid, ROX), widely used as a livestock feed additive, is excreted untransformed in large concentrations. Accumulation of this manure in the open environment increases dissolved organic matter (DOM) and ROX in soil within the aeration zone. And microbial action plays a dominant role in the transformation of ROX. However, the specific effect of DOM on the biotransformation of ROX is not known. In this paper, we investigated the transformation rate, metabolite content, and microbial community response of ROX in soils with different DOM concentrations (71.61, 100, 200, 500, and 800 mg L-1). The transformation of ROX was consistent with first-order transformation kinetics. DOM promoted the transformation of ROX, and with high DOM (DOM ≥200 mg L-1), ROX was transformed almost completely within two days. In this case, DOM provided nutrients to microorganisms and promoted their growth, accelerating the transformation of ROX. Also, the solubility of ROX was enhanced by DOM to increase its bioavailability. The microbial diversity was negatively correlated with DOM concentration and ROX transformation time; during the transformation of ROX, Bacillus, Arthrobacter, Enterococcus, Acinetobacter, and Pseudomonas became dominant in the soil with anomalously high levels of DOM. This study demonstrates the transformation process of ROX under actual environmental conditions where organic matter coexists with ROX, and this understanding is important for the prevention and control of arsenic pollution in soil within the aeration zone with anomalously high levels of DOM.
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Affiliation(s)
- Mengtuo Wen
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, 050061, PR China; Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen, 361000, PR China; School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Yaci Liu
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, 050061, PR China; Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen, 361000, PR China.
| | - Qiulan Zhang
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Changli Liu
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, 050061, PR China; Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen, 361000, PR China
| | - Yasong Li
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, 050061, PR China; Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen, 361000, PR China
| | - Yuqi Yang
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China
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Sriram B, Kogularasu S, Hsu YF, Wang SF, Sheu JK. Fabrication of Praseodymium Vanadate Nanoparticles on Disposable Strip for Rapid and Real-Time Amperometric Sensing of Arsenic Drug Roxarsone. Inorg Chem 2022; 61:16370-16379. [PMID: 36184926 DOI: 10.1021/acs.inorgchem.2c02388] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nanomaterials have versatile properties owing to their high surface-to-volume ratio and can thus be used in a variety of applications. This work focused on applying a facile hydrothermal strategy to prepare praseodymium vanadate nanoparticles due to the importance of nanoparticles in today's society and the fact that their synthesis might be a challenging endeavor. The structural and morphological characterizations were carried out to confirm the influence of the optimizations on the reaction's outcomes, which revealed praseodymium vanadate (PrVO4) with a tetragonal crystal system. In this regard, the proposed development of electrochemical sensors based on the PrVO4 nanocatalyst for the real-time detection of arsenic drug roxarsone (RXS) is a primary concern. The detection was measured by amperometric (i-t) signals where PrVO4/SPCE, as a new electrochemical sensing medium for RXS detection, increased the sensitivity of the sensor to about ∼2.5 folds compared to the previously reported ones. In the concentration range of 0.001-551.78 μM, the suggested PrVO4/SPCE sensor has a high sensitivity for RXS, with a detection limit of 0.4 nM. Furthermore, the impact of several selected potential interferences, operational stability (2000 s), and reproducibility measurements have no discernible effect on RXS sensing, making it the ideal sensing device feasible for technical analysis. The real-time analysis reveals the excellent efficiency and reliability of the prosed sensor toward RXS detection with favorable recovery ranges between ±97.00-99.66% for chicken, egg, water, and urine samples.
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Affiliation(s)
- Balasubramanian Sriram
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei106, Taiwan
| | | | - Yung-Fu Hsu
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei106, Taiwan
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei106, Taiwan
| | - Jinn-Kong Sheu
- Department of Photonics, National Cheng Kung University, Tainan701, Taiwan
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5
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Li F, Gao J, Wu H, Li Y, He X, Chen L. A Highly Selective and Sensitive Fluorescent Sensor Based on Molecularly Imprinted Polymer-Functionalized Mn-Doped ZnS Quantum Dots for Detection of Roxarsone in Feeds. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12172997. [PMID: 36080032 PMCID: PMC9457937 DOI: 10.3390/nano12172997] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 05/31/2023]
Abstract
Roxarsone (ROX) as an organoarsenic feed additive has been widely used in livestock breeding and poultry industry, but ROX can degrade into highly toxic inorganic arsenic species in natural environments to threaten to the environment and human health. Therefore, there is a considerable interest in developing convenient, selective and sensitive methods for the detection of ROX in livestock breeding and poultry industry. In this work, a fluorescent molecularly imprinted polymer (MIPs) probe based on amino-modified Mn-ZnS quantum dots (QDs) has been developed by sol-gel polymerization for specific recognition of ROX. The synthesized MIPs-coated Mn-ZnS QDs (MIPs@Mn-ZnS QDs) have highly selective recognition sites to ROX because there are multi-interactions among the template ROX, functional monomer phenyltrimethoxysilane and the amino-functionalized QDs such as the π-π conjugating effect, hydrogen bonds. Under the optimal conditions, an obvious fluorescence quenching was observed when ROX was added to the solution, and the quenching mechanism could be explained as the photo-induced electron transfer. The MIPs@Mn-ZnS QDs sensor exhibited sensitive response to ROX in the linear range from 3.75 × 10-8 M to 6.25 × 10-7 M (R2 = 0.9985) and the limit of detection down to 4.34 nM. Moreover, the fluorescence probe has been applied to the quantitative detection of ROX in feed samples, and the recovery was in the range of 91.9% to 108.0%. The work demonstrated that the prepared MIPs@Mn-ZnS QDs probe has a good potential for rapid and sensitive determination of ROX in complicated samples.
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Affiliation(s)
- Fei Li
- College of Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Jie Gao
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Haocheng Wu
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yijun Li
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
- National Demonstration Center for Experimental Chemistry Education, Nankai University, Tianjin 300071, China
| | - Xiwen He
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Langxing Chen
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
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6
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Wu S, Yang T, Mai J, Tang L, Liang P, Zhu M, Huang C, Li Q, Cheng X, Liu M, Ma J. Enhanced removal of organoarsenic by chlorination: Kinetics, effect of humic acid, and adsorbable chlorinated organoarsenic. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126820. [PMID: 34418831 DOI: 10.1016/j.jhazmat.2021.126820] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 08/01/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
In this study, the effective removal of organoarsenic by the combined process of "chlorination + Fe(II)" was achieved. Chlorine could effectively degrade roxarsone (ROX) over pH from 5 to 10. The fitting results of acid-base protonation model proved that the degradation of ROX was mainly attributed to the reaction of HOCl and deprotonated ROX. The transformation of arsenic species conformed to the fitting results of two-channel kinetic model, in which 32.4% of ROX was oxidized to As(V) via electron transfer pathway (ii) and the rest was converted into monochloro-ROX via electrophilic substitution pathway (i). Humic acid inhibited the degradation of ROX due to the competitive consumption of chlorine and the restraint on the pathway ii. Subsequently, an enhanced removal of total arsenic achieved after chlorination, due to that the generating As(V) and monochloro-ROX were easier adsorbed compared with ROX, over 97.8% of total arsenic was removed by ferric (oxyhydr)oxides which in-situ formed from the oxidation of Fe(II). Additionally, toxicity studies indicated that the acute toxicity was significantly eliminated by adding Fe(II) after chlorination, likely due to the removal of As(V) and chlorinated products. Furthermore, organoarsenic was also effectively removed by the combined process of "chlorination + Fe(II)" in real water.
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Affiliation(s)
- Sisi Wu
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, China
| | - Tao Yang
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, China.
| | - Jiamin Mai
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, China
| | - Liuyan Tang
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, China
| | - Ping Liang
- School of Applied and Physics Materials, Wuyi University, Jiangmen 529020, China
| | - Mengyang Zhu
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, China
| | - Cui Huang
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, China
| | - Qiuhua Li
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, China
| | - Xiaoxiang Cheng
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Minchao Liu
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environmental, Harbin Institute of Technology, Harbin 150090, China.
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7
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Tang R, Wang Y, Yuan S, Wang W, Yue Z, Zhan X, Hu ZH. Organoarsenic feed additives in biological wastewater treatment processes: Removal, biotransformation, and associated impacts. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124789. [PMID: 33310328 DOI: 10.1016/j.jhazmat.2020.124789] [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: 09/10/2020] [Revised: 11/16/2020] [Accepted: 12/04/2020] [Indexed: 06/12/2023]
Abstract
Aromatic organoarsenicals are widely used in animal feeding operations and cause arsenic contamination on livestock wastewater and manure, thereby raising the risk of surface water pollution. Biological wastewater treatment processes are often used for livestock wastewater treatment. Organoarsenic removal and biotransformation under aerobic and anaerobic conditions, and the associated impacts have received extensive attention due to the potential threat to water security. The removal efficiency and biotransformation of organoarsenicals in biological treatment processes are reviewed. The underlying mechanisms are discussed in terms of functional microorganisms and genes. The impacts associated with organoarsenicals and their degradation products on microbial activity and performance of bioreactors are also documented. Based on the current research advancement, knowledge gaps and potential research in this field are discussed. Overall, this work delivers a comprehensive understanding on organoarsenic behaviors in biological wastewater treatment processes, and provides valuable information on the control of arsenic contamination from the degradation of organoarsenicals in biological wastewater treatment processes.
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Affiliation(s)
- Rui Tang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yulan Wang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Shoujun Yuan
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Wei Wang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei University of Technology, Hefei 230009, China.
| | - Zhengbo Yue
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xinmin Zhan
- Civil Engineering, College of Engineering and Informatics, National University of Ireland, Galway, Ireland
| | - Zhen-Hu Hu
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei University of Technology, Hefei 230009, China.
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8
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Zhou S, Shang H, Luo J, Shen M, Wang Q, Zhang S, Zhu X. Organoarsenic conversion to As(III) in subcritical hydrothermal reaction of livestock manure. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123571. [PMID: 32763770 DOI: 10.1016/j.jhazmat.2020.123571] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/04/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
Liquid phase produced by the subcritical hydrothermal liquefaction (HTL) of livestock manure is extensively used in agronomic and environmental applications, but the potential risks caused by inherent pollutants (e.g., roxarsone, ROX) of the livestock manure have not been considered. This study shows that less toxic ROX is completely converted into highly toxic As(III) and As(V) in the HTL reaction with temperature more than 240 °C. Moreover, more than 81.5% of As is distributed in the liquid phase generated by the livestock manure HTL reaction. Notably, the hydrothermal products of livestock manure facilitate the conversion of As(V) to As(III). The resulting hydrochar and aldehydes act as electron donors for As(V) reduction, thus resulting in the formation of As(III). Furthermore, the dissociated As promotes the depolymerization and deoxygenation of the macromolecular compounds to produce more small oxygen-containing compounds such as aldehydes, further boosting the As(V) reduction to As(III). These results indicate that the liquid phase of the livestock manure has potential risks in applications as a fertilizer. Such findings have substantial implications in biomass utilization and redox reactions of envirotechnical and biogeochemical relevance.
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Affiliation(s)
- Shaojie Zhou
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Hua Shang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Jiewen Luo
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Minghao Shen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Qi Wang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Shicheng Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Xiangdong Zhu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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9
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Tang R, Prommer H, Yuan S, Wang W, Sun J, Jamieson J, Hu ZH. Enhancing Roxarsone Degradation and In Situ Arsenic Immobilization Using a Sulfate-Mediated Bioelectrochemical System. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:393-401. [PMID: 33301302 DOI: 10.1021/acs.est.0c06781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Roxarsone (ROX) is widely used in animal farms, thereby producing organoarsenic-bearing manure/wastewater. ROX cannot be completely degraded and nor can its arsenical metabolites be effectively immobilized during anaerobic digestion, potentially causing arsenic contamination upon discharge to the environment. Herein, we designed and tested a sulfate-mediated bioelectrochemical system (BES) to enhance ROX degradation and in situ immobilization of the released inorganic arsenic. Using our BES (0.5 V voltage and 350 μM sulfate), ROX and its metabolite, 4-hydroxy-3-amino-phenylarsonic acid (HAPA), were completely degraded within 13-22 days. In contrast, the degradation efficiency of ROX and HAPA was <85% during 32-day anaerobic digestion. In a sulfate-mediated BES, 75.0-83.2% of the total arsenic was immobilized in the sludge, significantly more compared to the anaerobic digestion (34.1-57.3%). Our results demonstrate that the combination of sulfate amendment and voltage application exerted a synergetic effect on enhancing HAPA degradation and sulfide-driven arsenic precipitation. This finding was further verified using real swine wastewater. A double-cell BES experiment indicated that As(V) and sulfate were transported from the anode to the cathode chamber and coprecipitated as crystalline alacranite in the cathode chamber. These findings suggest that the sulfate-mediated BES is a promising technique for enhanced arsenic decontamination of organoarsenic-bearing manure/wastewater.
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Affiliation(s)
- Rui Tang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
- CSIRO Land and Water, Private Bag No. 5, Wembley, Western Australia 6913, Australia
| | - Henning Prommer
- CSIRO Land and Water, Private Bag No. 5, Wembley, Western Australia 6913, Australia
- School of Earth Sciences, University of Western Australia, Crawley, Western Australia 6009, Australia
- National Centre for Groundwater Research and Training, Adelaide, South Australia 5001, Australia
| | - Shoujun Yuan
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Wei Wang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jing Sun
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - James Jamieson
- CSIRO Land and Water, Private Bag No. 5, Wembley, Western Australia 6913, Australia
- School of Earth Sciences, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Zhen-Hu Hu
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
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10
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Tang R, Wu G, Yue Z, Wang W, Zhan X, Hu ZH. Anaerobic biotransformation of roxarsone regulated by sulfate: Degradation, arsenic accumulation and volatilization. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115602. [PMID: 33254639 DOI: 10.1016/j.envpol.2020.115602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/31/2020] [Accepted: 09/02/2020] [Indexed: 06/12/2023]
Abstract
Roxarsone, an extensively used organoarsenical feed additive, is often pooled in livestock wastewater. Sulfate exists ubiquitously in livestock wastewater and is capable for arsenic remediation. However, little is known about impacts of sulfate on roxarsone biotransformation during anaerobic digestion of livestock wastewater. In this study, the biodegradation of 5.0 mg L-1 roxarsone, and the accumulation and volatilization of the generated arsenical metabolites in a sulfate-spiked upflow anaerobic granular blanket reactor were investigated. Based on the analysis of degradation products, the nitro and arsenate groups of roxarsone were successively reduced to amino and arsenite groups before the C-As bond cleavage. Effluent arsenic concentration was ∼0.75 mg L-1, of which 82.9-98.5% were organoarsenicals. The maximum arsenic volatilization rate reached 32.6 μg-As kg-1-VS d-1. Adding 5.0 mg L-1 sulfate enabled 66.7% and 45.9% decrease in inorganic arsenic concentration and arsenic volatilization rate, respectively. Arsenic content in the anaerobic granular sludge (AGS) was accumulated to 1250 mg kg-1 within 420 days. Based on the results of FESEM-EDS and XPS, sulfate addition induced arsenic precipitation in the AGS through the formation of orpiment. Arsenic in the effluent, biogas and AGS accounted for 52.9%, 0.01% and 47.1% of the influent arsenic when the reactor operated stably. The findings from this study suggest that sulfate has effectively regulatory effects on arsenic immobilization and volatilization during anaerobic digestion of organoarsenic-contaminated livestock wastewater.
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Affiliation(s)
- Rui Tang
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China; School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Guangxue Wu
- Key Laboratory of Microorganism Application and Risk Control (MARC) of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Zhengbo Yue
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Wei Wang
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Xinmin Zhan
- Civil Engineering, College of Engineering and Informatics, National University of Ireland, Galway, Ireland
| | - Zhen-Hu Hu
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei University of Technology, Hefei, 230009, China.
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11
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Chen N, Wang X, Wan Y, Luo Y, Huang Y, Zhang L. Simulated solar light driven Fe(III)/Fe(II) redox cycle for roxarsone degradation and simultaneous arsenate immobilization. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:121635. [PMID: 32289620 DOI: 10.1016/j.jhazmat.2019.121635] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 10/28/2019] [Accepted: 11/07/2019] [Indexed: 06/11/2023]
Abstract
Organoarsenicals remediation requires degrading organoarsenicals and simultaneously immobilizing the resulted inorganic arsenic, and is thus a great challenge. In this study, a simulated solar light driven Fe(III)/Fe(II) cycle strategy was developed to degrade roxarsone and immobilize the generated inorganic arsenic via tuning the degree of Fe(III) hydrolysis. At pH values of 2.0 and 3.0, the hydrolysis of Fe(III) in the solution was suppressed to produce photoreactive Fe(III)-hydroxyl complexes, which could be excited by simulated solar light to generate OH for 85.3 % of roxarsone degradation into arsenate within 60 min. Density functional theory calculations suggested that Fe(OH)(H2O)52+ with lower energy separation gap was the most photoactive Fe(III)-hydroxyl complex for OH generation. With further increasing pH value to 6.0, the hydrolysis of Fe(III) was promoted to precipitate the arsenate for its immobilization, accompanying with the decrease of final iron ions and arsenate concentrations to 0.012 mmol L-1 and 58 μg L-1, respectively. Meanwhile, the undegraded roxarsone was also adsorbed by the precipitate, increasing the overall roxarsone removal efficiency to 99.0 %. This study offers a promising strategy for the efficient organoarsenicals treatment, and also sheds light on the dual effects of iron based materials in organic pollutants degradation and heavy metal ions immobilization.
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Affiliation(s)
- Na Chen
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental & Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | - Xiaobing Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental & Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | - Yichao Wan
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental & Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | - Yani Luo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental & Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | - Yunhua Huang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental & Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | - Lizhi Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental & Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China.
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12
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Wang G, Han N, Liu L, Ke Z, Li B, Chen G. Molecular density regulating electron transfer efficiency of S. oneidensis MR-1 mediated roxarsone biotransformation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 262:114370. [PMID: 32443212 DOI: 10.1016/j.envpol.2020.114370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/17/2020] [Accepted: 03/12/2020] [Indexed: 06/11/2023]
Abstract
Efficient extracellular electron transport is a key for sufficient bioremediation of organoarsenic pollutants such as 4-hydroxy-3-nitrobenzenearsonic acid (roxarsone). The related apparent kinetics characteristics are essential for engineering practice of bioremediation activities and for full understanding the environmental fate of roxarsone, yet remains poorly understood. We report, to our knowledge, the first study of the electron transfer characteristics between roxarsone and participating S. oneidensis MR-1. The electron transfer rate during roxarsone biotransformation was estimated up to 3.1 × 106 electrons/cell/s, with its value being clearly associated with the apparent roxarsone concentration. Lowing roxarsone concentration extended the average separation distance between cells and neighboring roxarsone molecules and thereby augmented electric resistance as well as extended cell movement for foraging, thus reduced electron transfer rate. In addition, the presence of roxarsone significantly stimulated population growth of S. oneidensis MR-1 with nearly doubled maximum specific growth rate, albeit with clearly increased lag time, as compared with that of none-roxarsone scenario. These findings provide, at the first time, basic biostoichiometry of S. oneidensis MR-1 induced roxarsone biotransformation, which may shed lights for full understanding of roxarsone transformation process in waste treatment systems that are necessary for engineering practice and/or environmental risks assessment.
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Affiliation(s)
- Gang Wang
- Department of Soil and Water Sciences, China Agricultural University, Beijing, 100193, China
| | - Neng Han
- Department of Soil and Water Sciences, China Agricultural University, Beijing, 100193, China
| | - Li Liu
- Department of Civil Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Zhengchen Ke
- Department of Civil Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Baoguo Li
- Department of Soil and Water Sciences, China Agricultural University, Beijing, 100193, China
| | - Guowei Chen
- Department of Civil Engineering, Hefei University of Technology, Hefei, 230009, China.
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13
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Fu W, Lu DL, Yao H, Yuan S, Wang W, Gong M, Hu ZH. Simultaneous roxarsone photocatalytic degradation and arsenic adsorption removal by TiO 2/FeOOH hybrid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:18434-18442. [PMID: 32185737 DOI: 10.1007/s11356-020-08310-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 03/02/2020] [Indexed: 06/10/2023]
Abstract
Roxarsone (3-nitro-4-hydroxyphenylarsonic acid) is an extensively used organoarsenic feed additive. The effective removal of arsenic from roxarsone degradation before discharging is of great importance for controlling artificial arsenic pollution in aquatic environment. In this study, a bifunctional TiO2/ferrihydrite (TiO2/FeOOH) hybrid was synthesized by a hydrothermal method for the simultaneously photocatalytic degradation of roxarsone and adsorption removal of released arsenic. The analysis of the prepared TiO2/FeOOH by field-emission scanning electron microscope (FE-SEM), transmission electron microscopy (TEM), Raman spectra, X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), and X-ray photoelectron spectroscopy (XPS) confirmed the successful formation of the hybrid of crystalline TiO2 and no crystalline FeOOH. TiO2/FeOOH hybrid had better adsorption capacity for As(V) than roxarsone. Compared to TiO2, the TiO2/FeOOH hybrid exhibited much superior UV-driven photocatalytic activities for roxarsone degradation. After 12 h irradiation, more than 96% of roxarsone was degraded by 1:1 TiO2/FeOOH hybrid, and the released As(V) was simultaneously removed from the solution. The residual As(V) concentration was lower than 0.02 mg L-1. The reusability test indicated that TiO2/FeOOH hybrid had excellent stability and reliability. The possible mechanism of roxarsone degradation and released inorganic arsenics removal by this hybrid was also proposed. These results clearly indicated that the TiO2/FeOOH hybrid could be used for the removal of roxarsone and its degradation product.
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Affiliation(s)
| | | | - Hang Yao
- College of Civil Engineering and Architecture, Tongling University, Tongling, 244000, China
| | - Shoujun Yuan
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Wei Wang
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Miao Gong
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Zhen-Hu Hu
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China.
- Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei University of Technology, Hefei, 230009, China.
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14
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Tang R, Yuan S, Wang Y, Wang W, Wu G, Zhan X, Hu Z. Arsenic volatilization in roxarsone-loaded digester: Insight into the main factors and arsM genes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 711:135123. [PMID: 31818587 DOI: 10.1016/j.scitotenv.2019.135123] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/28/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
The extensive use of roxarsone (ROX) in livestock and poultry husbandry causes the production of arylarsenic-contaminated manure/wastewater. Anaerobic digestion is a conventional technique for livestock manure/wastewater treatment. However, the factors affecting arsenic volatilization are poorly understood in arylarsenic-loaded anaerobic reactors. The main factors such as ROX loading, exposure time of anaerobic granular sludge (AGS) to ROX, and volatile fatty acid (VFA) levels, affecting arsenic volatilization were investigated in this study. The results indicated that ROX loading of 5.70 mg-As·L-1 triggered the maximum volatile arsenic yield of 6.78 ng-As·g-1-VSS·d-1, which was 4.95 times higher compared to the ROX-free assay. The conversion of ROX into inorganic arsenic was an essential step for arsenic volatilization. The 160-day and 270-day exposure of AGS to ROX caused 6-fold and 8-fold increase in volatile arsenic yield, respectively, compared to the 0-day exposure. With the longer-time exposure to ROX, AGS provided more available arsenic for volatilization and its arsenic-volatilizing capacity was significantly enhanced. VFA level was positively associated with arsenic volatilization (r = 0.832-0.950; p < 0.05). The abundance of arsM genes in AGS increased by 34.62-129.05% after the 100-day incubation, and was strongly correlated to arsenic volatilization. Based on these results, possible pathway of arsenic volatilization in ROX-loaded digesters were proposed. The result from this study improves a better understanding of the potential of arsenic volatilization in arylarsenic-contaminated environments.
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Affiliation(s)
- Rui Tang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Shoujun Yuan
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yulan Wang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Wei Wang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Guangxue Wu
- Key Laboratory of Microorganism Application and Risk Control (MARC) of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Xinmin Zhan
- College of Engineering and Informatics, National University of Ireland, Galway, Ireland
| | - Zhenhu Hu
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China.
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15
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Li Y, Liu Y, Zhang Z, Fei Y, Tian X, Cao S. Identification of an anaerobic bacterial consortium that degrades roxarsone. Microbiologyopen 2020; 9:e1003. [PMID: 32053294 PMCID: PMC7142373 DOI: 10.1002/mbo3.1003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 01/07/2020] [Accepted: 01/14/2020] [Indexed: 02/01/2023] Open
Abstract
The degradation of roxarsone, an extensively used organoarsenic feed additive, occurs quickly under anaerobic conditions with microorganisms playing an important role in its degradation. Here, an anaerobic bacterial consortium that effectively degraded roxarsone was isolated, and its degradation efficiency and community changes along a roxarsone concentration gradient under anaerobic conditions were assessed. We used batch experiments to determine the roxarsone degradation rates, as well as the bacterial community structure and diversity, at initial roxarsone concentrations of 50, 100, 200, and 400 mg/kg. The results showed that roxarsone was degraded completely within 28, 28, 36, and 44 hr at concentrations of 50, 100, 200, and 400 mg/kg, respectively. The anaerobic bacterial consortium displayed considerable potential to degrade roxarsone, as the degradation rate increased with increasing roxarsone concentrations. Roxarsone promoted microbial growth, and in turn, the microorganisms degraded the organoarsenic compound, with the functional bacterial community varying between different roxarsone concentrations. Lysinibacillus, Alkaliphilus, and Proteiniclasticum were the main genera composing the roxarsone‐degrading bacterial community.
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Affiliation(s)
- Yasong Li
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, China.,Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, China
| | - Yaci Liu
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, China.,Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, China
| | - Zhaoji Zhang
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, China
| | - Yuhong Fei
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, China.,Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, China
| | - Xia Tian
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, China.,Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, China
| | - Shengwei Cao
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, China.,Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang, China
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16
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Guo N, Ma X, Ren S, Wang S, Wang Y. Mechanisms of metabolic performance enhancement during electrically assisted anaerobic treatment of chloramphenicol wastewater. WATER RESEARCH 2019; 156:199-207. [PMID: 30917300 DOI: 10.1016/j.watres.2019.03.032] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/15/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
The anaerobic process is a favorable alternative for the treatment of antibiotic pharmaceutical wastewater. The electrically assisted anaerobic process can be used to accelerate contaminant removal, especially for persistent organic pollutants such as antibiotics. In this study, an electrically assisted anaerobic system for chloramphenicol (CAP) wastewater treatment was developed. The system performance and the underlying metabolic mechanisms were evaluated under different applied voltages. With the increase of applied voltage from 0 to 2 V, the CAP removal efficiencies increased from 53.3% to 89.7%, while the methane production increased more than three times. The microbial community structure and correlation analysis showed that electrical stimulation selected the dominant functional bacteria and increased antibiotic resistance in dominant functional bacteria, both of which enhanced CAP removal and methane production. The improved CAP removal was a result of the presence of dechlorination-related bacteria (Acidovorax, Sedimentibacter, Thauera, and Flavobacterium) and potential electroactive bacteria (Shewanella and Comamonas), both of which carried ARGs and therefore could survive the biotoxicity of CAP. The enhanced methane production could be partly attributed to the surviving fermentative-related bacteria (Paludibacter, Proteiniclasticum, and Macellibacteroides) in the anaerobic bioreactor. The increased abundances of methanogenic genes (mcrA and ACAS genes) under high voltage further confirmed the enhanced methane production of this electrically assisted anaerobic system. The fundamental understanding of the mechanisms underlying metabolic performance enhancement is critical for the further development of anaerobic wastewater treatment.
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Affiliation(s)
- Ning Guo
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Xiaofang Ma
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Shaojie Ren
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Shuguang Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Yunkun Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China.
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17
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Chen G, Liu H, Zhang W, Li B, Liu L, Wang G. Roxarsone exposure jeopardizes nitrogen removal and regulates bacterial community in biological sequential batch reactors. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 159:232-239. [PMID: 29753825 DOI: 10.1016/j.ecoenv.2018.05.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/02/2018] [Accepted: 05/05/2018] [Indexed: 06/08/2023]
Abstract
Roxarsone is widely present in wastewaters of many animal farms in China. However, little is known about how long-term roxarsone exposure influences the nitrogen removal of biological wastewater treatment in agricultural settings. Here we investigated the nitrogen removal performance of a biological sequential batch reactor (SBR) and the changes of bacterial community, upon long-term roxarsone exposure. The long-term roxarsone dosing decreased the SBR nitrogen removal by 52.4%, with an immediate inhibition on denitrification and a delayed inhibition on nitrification. The analyses of bacterial enzymatic activities and 16 S rRNA sequencing revealed that bacterial activities generally decreased, and the nitrogen-cycling bacterial community was changed, particularly by the decrease (Acinetobacter and Methylophilaceae), persistence (Flavobacterium and Methylotenera), and emergence (Aeromonas) of certain bacterial genera. Overall, chronic roxarsone exposure could suppress nitrification and denitrification, which may even have broad implications on the use efficiency and cycling of nitrogen in agroecosystems.
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Affiliation(s)
- Guowei Chen
- Department of Civil Engineering, Hefei University of Technology, Hefei 230009, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China
| | - Huan Liu
- Department of Civil Engineering, Hefei University of Technology, Hefei 230009, China; SIPPR Engineering Group Co., Ltd, Zhengzhou 450000, China
| | - Wei Zhang
- Department of Plant, Soil and Microbial Sciences, and Environmental Science and Policy Program, Michigan State University, East Lansing, MI 48824, United States
| | - Baoguo Li
- Department of Soil and Water Sciences, China Agricultural University, Beijing 100193, China
| | - Li Liu
- Department of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Gang Wang
- Department of Soil and Water Sciences, China Agricultural University, Beijing 100193, China.
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18
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Fei J, Wang T, Zhou Y, Wang Z, Min X, Ke Y, Hu W, Chai L. Aromatic organoarsenic compounds (AOCs) occurrence and remediation methods. CHEMOSPHERE 2018; 207:665-675. [PMID: 29857198 DOI: 10.1016/j.chemosphere.2018.05.145] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/24/2018] [Accepted: 05/24/2018] [Indexed: 06/08/2023]
Abstract
Many researchers at home and abroad have made a body of researches and have gained great achievements on the environmental occurrence, fate, and toxicity of inorganic arsenic. But there is less research on the use of aromatic organoarsenic compounds (AOCs), which are common feed additives for livestock in the poultry industry. In this review, we outline the current state of knowledge acquired on the occurrence and remediation of AOCs, respectively. We also identify knowledge gaps and research needs, including the elucidation of the environmental fate of AOCs, metabolic pathway, the impact of metabolic modification on toxicity, and advanced analytical or repaired methods that allows for monitoring, identification or removal of the degradation products.
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Affiliation(s)
- Jiangchi Fei
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Ting Wang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Zhenxing Wang
- South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China
| | - Xiaobo Min
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China.
| | - Yong Ke
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Wenyong Hu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Liyuan Chai
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
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19
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Limited carbon source retards inorganic arsenic release during roxarsone degradation in Shewanella oneidensis microbial fuel cells. Appl Microbiol Biotechnol 2018; 102:8093-8106. [DOI: 10.1007/s00253-018-9212-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/25/2018] [Accepted: 06/30/2018] [Indexed: 11/26/2022]
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20
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Yin Y, Wan J, Li S, Li H, Dagot C, Wang Y. Transformation of roxarsone in the anoxic-oxic process when treating the livestock wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 616-617:1235-1241. [PMID: 29074235 DOI: 10.1016/j.scitotenv.2017.10.194] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/15/2017] [Accepted: 10/19/2017] [Indexed: 06/07/2023]
Abstract
In order to evaluate the influence of roxarsone (ROX) on the livestock wastewater treatment, a lab-scale pilot employing an anoxic-oxic (A-O) process was investigated by adding different concentrations of ROX at different periods. The mass balance of arsenic (As) in the A-O system was established through the analysis of As speciation and As migration in the gas, liquid and solid phases. The results showed that around 80% of total ROX (initial concentration was 50mgROXL-1) was eliminated in the anoxic reactor (R1) in which at least about 11% of total ROX was transformed to inorganic Asv (iAsv) due to the direct breaking of the C-As bond of ROX. Inorganic AsIII (iAsIII) and arsine (AsH3) were produced in R1, while the generated iAsIII in the effluent of R1 was almost completely oxidized to iAsV in the aerobic reactor (R2). However, the concentration of ROX in the effluent of R2 was almost the same as that in the effluent of R1. After 85days operation, iAsV and residual ROX as the main forms of As were observed after the A-O process. Furthermore, the mass balance of As at steady state revealed that around 0.08%, 3.91% and 96.01% of total As was transformed into gas (biogas), solid (excess sludge) and liquid (effluent). Additionally, the 16S rRNA analysis demonstrated that the existence of ROX in livestock wastewater may play a crucial role in the diversity of bacterial community in the A-O system.
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Affiliation(s)
- Yue Yin
- School of Chemical Engineering and Energy, Zhengzhou University, 100 Science Avenue, 450001, PR China
| | - Junfeng Wan
- School of Chemical Engineering and Energy, Zhengzhou University, 100 Science Avenue, 450001, PR China.
| | - Shaozhen Li
- School of Chemical Engineering and Energy, Zhengzhou University, 100 Science Avenue, 450001, PR China
| | - Hongli Li
- School of Chemical Engineering and Energy, Zhengzhou University, 100 Science Avenue, 450001, PR China
| | - Christophe Dagot
- GRESE EA 4330, Université de Limoges, 123 Avenue Albert Thomas, F-87060 Limoges Cedex, France; INSERM, U1092, Limoges, France
| | - Yan Wang
- School of Chemical Engineering and Energy, Zhengzhou University, 100 Science Avenue, 450001, PR China
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21
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Jiang X, Shen J, Xu K, Chen D, Mu Y, Sun X, Han W, Li J, Wang L. Substantial enhancement of anaerobic pyridine bio-mineralization by electrical stimulation. WATER RESEARCH 2018; 130:291-299. [PMID: 29245151 DOI: 10.1016/j.watres.2017.12.005] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 10/24/2017] [Accepted: 12/04/2017] [Indexed: 06/07/2023]
Abstract
Due to highly recalcitrant and toxicological nature of pyridine, the conventional anaerobic bioprocess is often limited by low removal rate and poor process stability. In this study, an electricity-assisted anaerobic system was developed in order to enhance biodegradation of pyridine from wastewater. The results showed that the performance and stability of the anaerobic reactor was remarkably improved for pyridine biodegradation with the applied direct current of 0.3 mA, where the efficiencies of pyridine and total organic carbon removal as well as NH4+-N formation were as high as 100.0%, 96.1 ± 1.2% and 60.1 ± 2.1% respectively. The compact biofilm due to electrical stimulation as well as the microaerobic environment in the bioanode might promote pyridine bio-mineralization in the anaerobic reactor. Moreover, the species related to pyridine biodegradation (Desulfovibrio, Dokdonella, Hydrogenophaga, and Paracoccus) were enriched in the anodic biofilm, which would be another reason for better reactor performance. This study demonstrated that electrical stimulation would be a potential alternative for the enhancement of pyridine removal from wastewater in anaerobic systems.
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Affiliation(s)
- Xinbai Jiang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jinyou Shen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Kaichun Xu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Dan Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Collaborative Innovation Centre of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Xiuyun Sun
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Weiqing Han
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jiansheng Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Lianjun Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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Lin JB, Yuan S, Wang W, Hu ZH, Yu HQ. Precipitation of organic arsenic compounds and their degradation products during struvite formation. JOURNAL OF HAZARDOUS MATERIALS 2016; 317:90-96. [PMID: 27262276 DOI: 10.1016/j.jhazmat.2016.05.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 05/02/2016] [Accepted: 05/18/2016] [Indexed: 06/05/2023]
Abstract
Roxarsone (ROX) and arsanilic acid (ASA) have been extensively used as organoarsenic animal feed additives. Organic arsenic compounds and their degradation products, arsenate (As(V)) and arsenite (As(III)), exist in the effluent from anaerobic reactors treating animal manure contaminated by ROX or ASA with ammonium (NH4(+)-N) and phosphate (PO4(3-)-P) together. Therefore, arsenic species in the effluent might be involved in the struvite formation process. In this study, the involvement of organic arsenic compounds and their degradation products As(V) and As(III) in the struvite crystallization was investigated. The results demonstrated that arsenic compounds did not substantially affect the PO4(3-)-P recovery, but confirmed the precipitation of arsenic during struvite formation. The precipitation of arsenic compounds in struvite was considerably affected by a solution pH from 9.0 to 11.0. With an increase in pH, the content of ASA and ROX in the precipitation decreased, but the contents of As(III) and As(V) increased. In addition, the arsenic content of As(V) in the struvite was higher than that of As(III), ASA and ROX. The results indicated that the struvite could be contaminated when the solution contains arsenic species, but that could be minimized by controlling the solution pH and maintaining anaerobic conditions during struvite formation.
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Affiliation(s)
- Jin-Biao Lin
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Institute of Water Treatment and Wastes Reutilization, Hefei University of Technology, Hefei 230009, China
| | - Shoujun Yuan
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Institute of Water Treatment and Wastes Reutilization, Hefei University of Technology, Hefei 230009, China
| | - Wei Wang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Institute of Water Treatment and Wastes Reutilization, Hefei University of Technology, Hefei 230009, China.
| | - Zhen-Hu Hu
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Institute of Water Treatment and Wastes Reutilization, Hefei University of Technology, Hefei 230009, China.
| | - Han-Qing Yu
- Department of Chemistry, University of Science & Technology of China, Hefei 230026, China
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23
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Yan PF, Hu ZH, Yu HQ, Li WH, Liu L. Fluorescence quenching effects of antibiotics on the main components of dissolved organic matter. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:5667-5675. [PMID: 26578380 DOI: 10.1007/s11356-015-5800-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 11/11/2015] [Indexed: 06/05/2023]
Abstract
Dissolved organic matter (DOM) in wastewater can be characterized using fluorescence excitation-emission matrix and parallel factor (EEM-PARAFAC) analysis. Wastewater from animal farms or pharmaceutical plants usually contains high concentration of antibiotics. In this study, the quenching effect of antibiotics on the typical components of DOM was explored using fluorescence EEM-PARAFAC analysis. Four antibiotics (roxarsone, sulfaquinoxaline sodium, oxytetracycline, and erythromycin) at the concentration of 0.5∼4.0 mg/L and three typical components of DOM (tyrosine, tryptophan, and humic acid) were selected. Fluorescence quenching effects were observed with the addition of antibiotics. Among these four antibiotics, roxarsone (2.9∼20.2 %), sulfaquinoxaline sodium (0∼32.0 %), and oxytetracycline (0∼41.8 %) led to a stronger quenching effect than erythromycin (0∼8.0 %). From the side of DOM, tyrosine and tryptophan (0.5∼41.8 %) exhibited a similar quenching effect, but they were higher than humic acids (0∼20.2 %) at the same concentration of antibiotics. For humic acid, a significant quenching effect was observed only with the addition of roxarsone. This might be the first report about the fluorescence quenching effect caused by antibiotics. The results from this study confirmed the interference of antibiotics on the fluorescence intensity of the main components of DOM and highlighted the importance of correcting fluorescence data in the wastewater containing antibiotics.
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Affiliation(s)
- Peng-Fei Yan
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Zhen-Hu Hu
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China.
| | - Han-Qing Yu
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Wei-Hua Li
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei, 230601, China
| | - Li Liu
- School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China
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24
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Menahem A, Dror I, Berkowitz B. Transport of gadolinium- and arsenic-based pharmaceuticals in saturated soil under various redox conditions. CHEMOSPHERE 2016; 144:713-20. [PMID: 26408978 DOI: 10.1016/j.chemosphere.2015.09.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 08/30/2015] [Accepted: 09/10/2015] [Indexed: 05/28/2023]
Abstract
The release of pharmaceuticals and personal care products (PPCPs) to the soil-water environment necessitates understanding of PPCP transport behavior under conditions that account for dynamic flow and varying redox states. This study investigates the transport of two organometallic PPCPs, Gd-DTPA and roxarsone (arsenic compound) and their metal salts (Gd(NO3)3, AsNaO2); Gd-DTPA is used widely as a contrasting agent for MRI, while roxarsone is applied extensively as a food additive in the broiler poultry industry. Here, we present column experiments using sand and Mediterranean red sandy clay soil, performed under several redox conditions. The metal salts were almost completely immobile. In contrast, transport of Gd-DTPA and roxarsone was affected by the soil type. Roxarsone was also affected by the different redox conditions, showing delayed breakthrough curves as the redox potential became more negative due to biological activity (chemically-strong reducing conditions did not affect the transport). Mechanisms that include adsorptive retardation for aerobic and nitrate-reducing conditions, and non-adsorptive retardation for iron-reducing, sulfate-reducing and biologically-strong reducing conditions, are suggested to explain the roxarsone behavior. Gd-DTPA is found to be a stable complex, with potential for high mobility in groundwater systems, whereas roxarsone transport through groundwater systems is affected by redox environments, demonstrating high mobility under aerobic and nitrate-reducing conditions and delayed transport under iron-reducing, sulfate-reducing and biologically-strong reducing conditions.
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Affiliation(s)
- Adi Menahem
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, 7610001, Rehovot, Israel
| | - Ishai Dror
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, 7610001, Rehovot, Israel.
| | - Brian Berkowitz
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, 7610001, Rehovot, Israel
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25
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Mafla S, Moraga R, León CG, Guzmán-Fierro VG, Yañez J, Smith CT, Mondaca MA, Campos VL. Biodegradation of roxarsone by a bacterial community of underground water and its toxic impact. World J Microbiol Biotechnol 2015; 31:1267-77. [PMID: 26063647 DOI: 10.1007/s11274-015-1886-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 06/05/2015] [Indexed: 02/06/2023]
Abstract
Roxarsone is included in chicken food as anticoccidial and mainly excreted unchanged in faeces. Microorganisms biotransform roxarsone into toxic compounds that leach and contaminate underground waters used for human consumption. This study evaluated roxarsone biotransformation by underground water microorganisms and the toxicity of the resulting compounds. Underground water from an agricultural field was used to prepare microcosms, containing 0.05 mM roxarsone, and cultured under aerobic or anaerobic conditions. Bacterial communities of microcosms were characterized by PCR-DGGE. Roxarsone degradation was measured by HPLC/HG/AAS. Toxicity was evaluated using HUVEC cells and the Toxi-ChromoTest kit. Roxarsone degradation analysis, after 15 days, showed that microcosms of underground water with nutrients degraded 90 and 83.3% of roxarsone under anaerobic and aerobic conditions, respectively. Microcosms without nutrients degraded 50 and 33.1% under anaerobic and aerobic conditions, respectively. Microcosms including nutrients showed more roxarsone conversion into toxic inorganic arsenic species. DGGE analyses showed the presence of Proteobacteria, Firmicutes, Actinobacteria, Planctomycetes and Spirochaetes. Toxicity assays showed that roxarsone biotransformation by underground water microorganisms in all microcosms generated degradation products toxic for eukaryotic and prokaryotic cells. Furthermore, toxicity increased when roxarsone leached though a soil column and was further transformed by the bacterial community present in underground water. Therefore, using underground water from areas where roxarsone containing manure is used as fertilizer might be a health risk.
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Affiliation(s)
- S Mafla
- Environmental Microbiology Laboratory, Department of Microbiology, Faculty of Biological Sciences, University of Concepción, P.O. Box 160-C, Correo 3, Concepción, Chile
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26
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P Mangalgiri K, Adak A, Blaney L. Organoarsenicals in poultry litter: detection, fate, and toxicity. ENVIRONMENT INTERNATIONAL 2015; 75:68-80. [PMID: 25461415 DOI: 10.1016/j.envint.2014.10.022] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/24/2014] [Accepted: 10/28/2014] [Indexed: 06/04/2023]
Abstract
Arsenic contamination in groundwater has endangered the health and safety of millions of people around the world. One less studied mechanism for arsenic introduction into the environment is the use of organoarsenicals in animal feed. Four organoarsenicals are commonly employed as feed additives: arsanilic acid, carbarsone, nitarsone, and roxarsone. Organoarsenicals are composed of a phenylarsonic acid molecule with substituted functional groups. This review documents the use of organoarsenicals in the poultry industry, reports analytical methods available for quantifying organic arsenic, discusses the fate and transport of organoarsenicals in environmental systems, and identifies toxicological concerns associated with these chemicals. In reviewing the literature on organoarsenicals, several research needs were highlighted: advanced analytical instrumentation that allows for identification and quantification of organoarsenical degradation products; a greater research emphasis on arsanilic acid, carbarsone, and nitarsone; identification of degradation pathways, products, and kinetics; and testing/development of agricultural wastewater and solid treatment technologies for organoarsenical-laden waste.
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Affiliation(s)
- Kiranmayi P Mangalgiri
- Department of Chemical, Biochemical and Environmental Engineering, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
| | - Asok Adak
- Department of Chemical, Biochemical and Environmental Engineering, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA; Department of Civil Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711103, India
| | - Lee Blaney
- Department of Chemical, Biochemical and Environmental Engineering, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
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27
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Zhu X, Qian F, Liu Y, Zhang S, Chen J. Environmental performances of hydrochar-derived magnetic carbon composite affected by its carbonaceous precursor. RSC Adv 2015. [DOI: 10.1039/c5ra07339a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Strong linear correlations were obtained between hydrochar properties and the environmental performances of its derived magnetic carbon composites.
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Affiliation(s)
- Xiangdong Zhu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3)
- Department of Environmental Science and Engineering
- Fudan University
- Shanghai 200433
- China
| | - Feng Qian
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3)
- Department of Environmental Science and Engineering
- Fudan University
- Shanghai 200433
- China
| | - Yuchen Liu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3)
- Department of Environmental Science and Engineering
- Fudan University
- Shanghai 200433
- China
| | - Shicheng Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3)
- Department of Environmental Science and Engineering
- Fudan University
- Shanghai 200433
- China
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3)
- Department of Environmental Science and Engineering
- Fudan University
- Shanghai 200433
- China
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28
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Wang HL, Hu ZH, Tong ZL, Xu Q, Wang W, Yuan S. Effect of arsanilic acid on anaerobic methanogenic process: Kinetics, inhibition and biotransformation analysis. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.08.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Zhang FF, Wang W, Yuan SJ, Hu ZH. Biodegradation and speciation of roxarsone in an anaerobic granular sludge system and its impacts. JOURNAL OF HAZARDOUS MATERIALS 2014; 279:562-568. [PMID: 25108830 DOI: 10.1016/j.jhazmat.2014.07.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Revised: 07/15/2014] [Accepted: 07/16/2014] [Indexed: 06/03/2023]
Abstract
Roxarsone (3-nitro-4-hydroxy benzene arsenic acid) is an organoarsenic feed additive and has been widely used in the poultry industry to prevent coccidiosis and improve feed efficiency. The presence of roxarsone and its degradation products results in the instability of the anaerobic methanogenic process. This study investigated the degradation and speciation of roxarsone in an anaerobic granular sludge (AGS) system and the impacts of roxarsone and its degradation products on the structure of AGS. Roxarsone inhibited methane production, and the added roxarsone was rapidly degraded into 3-amino-4-hydroxyphenylarsonic acid (HAPA). After 240 days of incubation, the distribution of arsenic differed between the aqueous solution and the AGS in the assays of 20 and 350mg/L roxarsone. Species analysis indicated that HAPA was completely degraded in all of the assays with roxarsone addition after 240 days of incubation. Species distribution was affected by the phases and the initial concentration of roxarsone added. The concentration of As(III) was higher than that of As(V) in both the aqueous solution and the AGS in all assays with roxarsone addition. The toxicity of roxarsone and its degradation products resulted in changes in the structure and the microorganism species in the AGS.
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Affiliation(s)
- Fei-Fei Zhang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Wei Wang
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Institute of Water Treatment and Wastes Reutilization, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Shou-Jun Yuan
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Institute of Water Treatment and Wastes Reutilization, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Zhen-Hu Hu
- School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Institute of Water Treatment and Wastes Reutilization, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China.
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