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Kulkarni K, Chawan A, Kulkarni A, Gharat S. Bioremediation of imidacloprid using Azospirillium biofertilizer and Rhizobium biofertilizer. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-022-1149-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xiong S, Deng Y, Tang R, Zhang C, Zheng J, Zhang Y, Su L, Yang L, Liao C, Gong D. Factors study for the removal of epoxiconazole in water by common biochars. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107690] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Gamma radiation induced degradation of the phenoxy acid herbicide diclofop-methyl in aqueous solutions. Appl Radiat Isot 2020; 156:108939. [DOI: 10.1016/j.apradiso.2019.108939] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 09/04/2019] [Accepted: 10/13/2019] [Indexed: 01/17/2023]
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4
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García-Mancha N, Monsalvo VM, Puyol D, Rodriguez JJ, Mohedano AF. Enhanced anaerobic degradability of highly polluted pesticides-bearing wastewater under thermophilic conditions. JOURNAL OF HAZARDOUS MATERIALS 2017; 339:320-329. [PMID: 28658641 DOI: 10.1016/j.jhazmat.2017.06.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 06/14/2017] [Accepted: 06/15/2017] [Indexed: 06/07/2023]
Abstract
This work presents a sustainable and cost-competitive solution for hardly biodegradable pesticides-bearing wastewater treatment in an anaerobic expanded granular sludge bed (EGSB) reactor at mesophilic (35°C) and thermophilic (55°C). The reactor was operated in continuous mode during 160days, achieving an average COD removal of 33 and 44% under mesophilic and thermophilic conditions, respectively. The increase of temperature improved the biomass activity and the production of methane by 35%. Around 96% of pesticides identified in raw wastewater were not detected in both mesophilic and thermophilic effluents. A dramatic selection of the microbial population in anaerobic granules was caused by the presence of pesticides, which also changed significantly when the temperature was increased. Pesticides caused a significant inhibition on methanogenesis, especially over acetoclastic methanogens. Aerobic biodegradability tests of the resulting anaerobic effluents revealed that aerobic post-treatment is also a feasible and effective option, yielding more than 60% COD reduction.
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Affiliation(s)
- N García-Mancha
- Chemical Engineering Section, University Autonoma de Madrid, Francisco Tomas y Valiente 7, 28049 Madrid, Spain.
| | - V M Monsalvo
- Innovation and Technology Department, FCC Aqualia, Av. del Camino de Santiago, 40, 28050 Madrid, Spain.
| | - D Puyol
- Department of Chemical and Energy Tech., Chemical and Environmental Tech., Mechanical Tech. and Analytical Chemistry ESCET, Rey Juan Carlos University, 28933 Madrid, Spain.
| | - J J Rodriguez
- Chemical Engineering Section, University Autonoma de Madrid, Francisco Tomas y Valiente 7, 28049 Madrid, Spain.
| | - A F Mohedano
- Chemical Engineering Section, University Autonoma de Madrid, Francisco Tomas y Valiente 7, 28049 Madrid, Spain.
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Saini R, Raghunath CV, Pandey P, Kumar P. Optimization of Fenton oxidation for the removal of methyl parathion in aqueous solution. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.pisc.2016.06.054] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Mercado-Borrayo BM, Cram Heydrich S, Pérez IR, Hernández Quiroz M, De León Hill CP. Organophosphorus and Organochlorine Pesticides Bioaccumulation by Eichhornia crassipes in Irrigation Canals in an Urban Agricultural System. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2015; 17:701-708. [PMID: 25976884 DOI: 10.1080/15226514.2014.964841] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A natural wetland in Mexico City Metropolitan Area is one of the main suppliers of crops and flowers, and in consequence its canals hold a high concentration of organochlorine (OC) and organophosphorus (OP) pesticides. There is also an extensive population of water hyacinth (Eichhornia crassipes), which is considered a plague; but literature suggests water hyacinth may be used as a phytoremediator. This study demonstrates bioaccumulation difference for the OC in vivo suggesting their bioaccumulation is ruled by their log K(ow), while all the OP showed bioaccumulation regardless of their log K(ow). The higher bioaccumulation factors (BAF) of the accumulated OC pesticides cannot be explained by their log K(ow), suggesting that the OC pesticides may also be transported passively into the plant. Translocation ratios showed that water hyacinth is an accumulating plant with phytoremediation potential for all organophosphorus pesticides studied and some organochlorine pesticides. An equation for free water surface wetlands with floating macrophytes, commonly used for the construction of water-cleaning wetlands, showed removal of the pesticides by the wetland with room for improvement with appropriate management.
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Affiliation(s)
- B M Mercado-Borrayo
- a Facultad de Ciencias, Universidad Nacional Autónoma de México , Delegación Coyoacán , D.F. , México
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Fischer K, Majewsky M. Cometabolic degradation of organic wastewater micropollutants by activated sludge and sludge-inherent microorganisms. Appl Microbiol Biotechnol 2014; 98:6583-97. [PMID: 24866947 DOI: 10.1007/s00253-014-5826-0] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/10/2014] [Accepted: 05/13/2014] [Indexed: 11/30/2022]
Abstract
Municipal wastewaters contain a multitude of organic trace pollutants. Often, their biodegradability by activated sludge microorganisms is decisive for their elimination during wastewater treatment. Since the amounts of micropollutants seem too low to serve as growth substrate, cometabolism is supposed to be the dominating biodegradation process. Nevertheless, as many biodegradation studies were performed without the intention to discriminate between metabolic and cometabolic processes, the specific contribution of the latter to substance transformations is often not clarified. This minireview summarizes current knowledge about the cometabolic degradation of organic trace pollutants by activated sludge and sludge-inherent microorganisms. Due to their relevance for communal wastewater contamination, the focus is laid on pharmaceuticals, personal care products, antibiotics, estrogens, and nonylphenols. Wherever possible, reference is made to the molecular process level, i.e., cometabolic pathways, involved enzymes, and formed transformation products. Particular cometabolic capabilities of different activated sludge consortia and various microbial species are highlighted. Process conditions favoring cometabolic activities are emphasized. Finally, knowledge gaps are identified, and research perspectives are outlined.
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Affiliation(s)
- Klaus Fischer
- Department of Analytical and Ecological Chemistry, University of Trier, Behringstr. 21, 54296, Trier, Germany,
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Nouri A, Sargolzaei J. Removal of Phenol Dyes Using a Photocatalytic Reactor with SnO2/Fe3O4Nanoparticles. J DISPER SCI TECHNOL 2014. [DOI: 10.1080/01932691.2013.826585] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wang D, Ji M, Wang C. The stimulating effects of the addition of glucose on denitrification and removal of recalcitrant organic compounds. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2014. [DOI: 10.1590/s0104-66322014000100002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Min Ji
- Tianjin University, China
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Amorim CC, Bottrel SEC, Costa EP, Teixeira APC, Leão MMD. Removal of ethylenthiourea and 1,2,4-triazole pesticide metabolites from water by adsorption in commercial activated carbons. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2013; 48:183-190. [PMID: 23356339 DOI: 10.1080/03601234.2013.730287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This study evaluated the adsorption capacity of ethylenthiourea (ETU) and 1H-1,2,4-triazole (1,2,4-T) for two commercial activated carbons: charcoal-powdered activated carbon (CPAC) and bovine bone-powdered activated carbon (BPAC). The tests were conducted at a bench scale, with ETU and 1,2,4-T diluted in water, for isotherm and adsorption kinetic studies. The removal of the compounds was accompanied by a total organic carbon (TOC) analysis and ultraviolet (UV) reduction analysis. The coals were characterized by their surface area using nitrogen adsorption/desorption, by a scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDS) and by a zero charge point analysis (pHpcz). The results showed that adsorption kinetics followed a pseudo-second-order model for both coals, and the adsorption isotherms for CPAC and BPAC were adjusted to the Langmuir and Freundlich isotherms, respectively. The CPAC removed approximately 77% of the ETU and 76% of the 1,2,4-T. The BPAC was ineffective at removing the contaminants.
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Affiliation(s)
- Camila C Amorim
- Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
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Behloul M, Grib H, Drouiche N, Abdi N, Lounici H, Mameri N. Removal of Malathion Pesticide from Polluted Solutions by Electrocoagulation: Modeling of Experimental Results using Response Surface Methodology. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2012.707734] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Robles-Molina J, Martín de Vidales MJ, García-Reyes JF, Cañizares P, Sáez C, Rodrigo MA, Molina-Díaz A. Conductive-diamond electrochemical oxidation of chlorpyrifos in wastewater and identification of its main degradation products by LC-TOFMS. CHEMOSPHERE 2012; 89:1169-76. [PMID: 22947255 DOI: 10.1016/j.chemosphere.2012.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 08/02/2012] [Accepted: 08/03/2012] [Indexed: 05/24/2023]
Abstract
The electrochemical transformation of the organophosphorous insecticide chlorpyrifos (CPF) was investigated in wastewater. The oxidation of CPF was carried out in a single-compartment electrochemical flow cell working under batch operation mode, using diamond-based material as anode and stainless steel as cathode. In order to evaluate its persistence and degradation pathway, two different concentration levels (1.0 mg L(-1) and 0.1 mg L(-1)) were studied. Liquid chromatography/mass spectrometry was used for evaluation of the initial and electrolyzed solutions. The identification of CPF transformation products was performed by liquid chromatography-time of flight-mass spectrometry (LC-TOFMS). Results showed that CPF is completely removed at the end of treatment time. Analysis by LC-TOFMS allowed the identification of six degradation products (with Mw 154, 170, 197, 305 321 and 333). Three of the identified intermediates (Mw 170, 305 and 321) were completely removed at the end of electrolysis time. Interestingly, the formation of diethyl 3,5,6-trichloropyridin-2yl phosphate (chlorpyrifos oxon) and 3,5,6-trichloropyridin-2-ol was also found in previous reported degradation pathways using different degradation technologies.
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Affiliation(s)
- José Robles-Molina
- Analytical Chemistry Research Group, Department of Physical and Analytical Chemistry, University of Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
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Lopez-Alvarez B, Torres-Palma RA, Ferraro F, Peñuela G. Solar photo-Fenton treatment of carbofuran: analysis of mineralization, toxicity, and organic by-products. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2012; 47:2141-2150. [PMID: 22871012 DOI: 10.1080/10934529.2012.696029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The degradation of the pesticide carbofuran (CBF) using solar photo-Fenton treatment, at both the laboratory and the pilot scale, was evaluated. At the laboratory scale, in a suntest reactor, the Fe(2+) concentration and H(2)O(2) concentration were evaluated and optimized using the surface response methodology and the Pareto diagram. Under optimal conditions experiments were performed to evaluate the evolution of the substrate removal, oxidation, subsequent mineralization, toxicity and the formation of chloride ions during the treatment. The analysis and evolution of five CBF by-products as well as several control and reactivity tests at the density functional theory level were used to depict a general scheme of the main degradation pathway of CBF via the photo-Fenton system. Finally, at the pilot scale, a sample of the commercial CBF product Furadan was eliminated after 420 min by the photo-Fenton system using direct sunlight. Under these conditions, after 900 min 89% of toxicity (1/E(50) on Vibrio fischeri bacteria), 97% of chemical oxygen demand, and 90% of dissolved organic carbon were removed.
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Affiliation(s)
- Blady Lopez-Alvarez
- Grupo diagnóstico y control de la contaminación, Facultad de ingeniería, Universidad de Antioquia, Medellín, Colombia
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