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Camacho-López C, Romo-Gómez C, Otazo-Sánchez EM, Acevedo-Sandoval OA, García-Nieto E, Juárez-Santacruz L. Biotransformation of 17β-Estradiol through a Denitrifying Sludge. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13326. [PMID: 36293905 PMCID: PMC9602675 DOI: 10.3390/ijerph192013326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
17β-estradiol (E2) is the natural estrogen with the most significant potential for endocrine disruption in the biota of aquatic ecosystems at trace concentrations. It is, therefore, essential to study treatments for water polluted with E2 that would guarantee its complete elimination and mineralization. Denitrification is a biological process shown to have the capacity to completely biodegrade drugs, such as ampicillin. This work is aimed to evaluate the biotransformation of 17β-estradiol by employing a denitrifying sludge. The assays performed were: (I) abiotic with 3.5 mg E2-C L-1 and (II) denitrifying with 10 mg CH3COO--C L-1 as the reference, 10 mg E2-C L-1 as the sole electron donor, and a mixture of (mg L-1) 10 E2-C with 10 CH3COO--C at C N-1 of 1.1. The E2-C and NO3--N consumption efficiencies were greater than 99%, and HCO3--C and N2 production yields were close to 1 in all assays. The denitrifying sludge could biodegrade up to 10 mg E2-C L-1 as the sole electron donor and when mixed with 10 mg CH3COO--C L-1. No intermediate metabolites were generated from the process.
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Affiliation(s)
- César Camacho-López
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma 42184, Hidalgo, Mexico
| | - Claudia Romo-Gómez
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma 42184, Hidalgo, Mexico
| | - Elena María Otazo-Sánchez
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma 42184, Hidalgo, Mexico
| | | | - Edelmira García-Nieto
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala de Xicohténcatl 90000, Tlaxcala, Mexico
| | - Libertad Juárez-Santacruz
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala de Xicohténcatl 90000, Tlaxcala, Mexico
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Yang J, Ma F, Dai C, Wu W, Fan S, Lian S, Qu Y. Indole metabolism by phenol-stimulated activated sludges: Performance, microbial communities and network analysis. ENVIRONMENTAL RESEARCH 2022; 207:112660. [PMID: 34995547 DOI: 10.1016/j.envres.2021.112660] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/03/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
Indole and phenol often coexist in the coking wastewater, while the effects of phenol on microbial communities of indole metabolism were less explored. In this study, the microbial interactions within activated sludge microbial communities stimulated by indole (group A) or by indole and phenol (group B) were systematically investigated in sequencing batch reactors (SBRs). The results showed that the removal of indole was increased by adding phenol. By using high-throughput sequencing technology, it was found that α-diversity was reduced in both groups. According to the relative abundance analysis, the indole-degrading genus Comamonas was the core genus in both groups (33.94% and 61.40%). But another indole-degrading genus Pseudomonas was only enriched in group A with 12.22% relative abundance. Meanwhile, common aromatic degrading genus Dyella and Thermomonas were enriched only in group B. It was found that the relative abundance of cytochrome P450 and styrene degradation enzymes were increased in group B by PICRUSt analysis. Based on the phylogenetic molecular ecological networks (pMENs), module hub OTU_1149 (Burkholderia) was only detected in group B, and the positive interactions between the key functional genus Burkholderia and other bacteria were increased. This study provides new insights into our understanding of indole metabolism communities stimulated by phenol, which would provide useful information for practical coking wastewater treatment.
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Affiliation(s)
- Jing Yang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Chunxiao Dai
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Weize Wu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Shuling Fan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Shengyang Lian
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Yuanyuan Qu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China.
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Simultaneous removal characteristics of ammonium and phenol by Alcaligenes faecalis strain WY-01 with the addition of acetate. Bioprocess Biosyst Eng 2020; 44:27-38. [PMID: 32748276 DOI: 10.1007/s00449-020-02416-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 07/24/2020] [Indexed: 10/23/2022]
Abstract
In this study, simultaneous removal of ammonium plus phenol could be achieved by Alcaligenes faecalis strain WY-01 with the addition of acetate, although acetate delayed the phenol degradation, probably due to the delayed expression of phenol hydroxylase gene under the presence of acetate. Moreover, the successful expression of key enzyme genes in strain WY-01 provided some evidence to illustrate its metabolic pathways of ammonium and phenol under aerobic conditions. Furthermore, SEM was used to clarify the role of acetate in resisting phenol toxicity, and these results demonstrated that strain WY-01 has the ability to form cell flocs when sodium acetate is used as co-substrate for a high concentration of phenol, and these flocs could protect cells against the toxicity of phenol, further enhancing phenol degradation in a high concentration of phenol. All these will provide further insights into the efficacy of strain WY-01 for treating wastewater cocontaminated by ammonium and phenol.
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Islas-García I, Romo-Gómez C, de María Cuervo-López F. Ampicillin Mineralization by Denitrifying Process: Kinetic and Metabolic Effects. Appl Biochem Biotechnol 2017; 183:1049-1061. [DOI: 10.1007/s12010-017-2483-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 04/13/2017] [Indexed: 10/19/2022]
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Olaniran AO, Singh L, Kumar A, Mokoena P, Pillay B. Aerobic degradation of 2,4-dichlorophenoxyacetic acid and other chlorophenols by Pseudomonas strains indigenous to contaminated soil in South Africa: Growth kinetics and degradation pathway. APPL BIOCHEM MICRO+ 2017. [DOI: 10.1134/s0003683817020120] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Arellano-González MÁ, González I, Texier AC. Mineralization of 2-chlorophenol by sequential electrochemical reductive dechlorination and biological processes. JOURNAL OF HAZARDOUS MATERIALS 2016; 314:181-187. [PMID: 27131458 DOI: 10.1016/j.jhazmat.2016.04.048] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 04/15/2016] [Accepted: 04/19/2016] [Indexed: 06/05/2023]
Abstract
In this work, a novel approach was applied to obtain the mineralization of 2-chlorophenol (2-CP) in an electrochemical-biological combined system where an electrocatalytic dehydrogenation process (reductive dechlorination) was coupled to a biological denitrification process. Reductive dechlorination of 2-CP was conducted in an ECCOCEL-type reactor on a Pd-Ni/Ti electrode at a potential of -0.40V vs Ag/AgCl(s)/KCl(sat), achieving 100 percent transformation of 2-CP into phenol. The electrochemically pretreated effluent was fed to a rotating cylinder denitrifying bioreactor where the totality of phenol was mineralized by denitrification, obtaining CO2 and N2 as the end products. The total time required for 2-CP mineralization in the combined electrochemical-biological process was 7.5h. This value is close to those previously reported for electrochemical and advanced oxidation processes but in this case, an efficient process was obtained without accumulation of by-products or generation of excessive energy costs due to the selective electrochemical pretreatment. This study showed that the use of electrochemical reductive pretreatment combined with biological processes could be a promising technology for the removal of recalcitrant molecules, such as chlorophenols, from wastewaters by more efficient, rapid, and environmentally friendly processes.
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Affiliation(s)
- Miguel Ángel Arellano-González
- Universidad Autónoma Metropolitana-Iztapalapa, Departamento de Química, Av. San Rafael Atlixco No. 186, Col. Vicentina, 09340 Mexico D.F., Mexico
| | - Ignacio González
- Universidad Autónoma Metropolitana-Iztapalapa, Departamento de Química, Av. San Rafael Atlixco No. 186, Col. Vicentina, 09340 Mexico D.F., Mexico
| | - Anne-Claire Texier
- Universidad Autónoma Metropolitana-Iztapalapa, Departamento de Biotecnología, Av. San Rafael Atlixco No. 186, Col. Vicentina, 09340 Mexico, D.F., Mexico.
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Beristain-Montiel L, Martínez-Hernández S, de María Cuervo-López F, Ramírez-Vives F. Dynamics of a microbial community exposed to several concentrations of 2-chlorophenol in an anaerobic sequencing batch reactor. ENVIRONMENTAL TECHNOLOGY 2015; 36:1776-1784. [PMID: 25666400 DOI: 10.1080/09593330.2015.1010595] [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
The aim of this study was to contribute to the knowledge on the dynamic of the microbial community involved in anaerobic degradation of different concentrations of 2-chlorophenol (2CP, from 28 to 196 mg 2CP-C/L) and a mixture of 2CP and phenol (from 28 to 196 mg phenol-C/L) and its relationship with the respiratory process in two anaerobic sequencing batch reactors (ASBR). The dynamic of the microbial community was evaluated by denaturant gradient gel electrophoresis (DGGE) and ecological indices (S and J indices). The respiratory process was evaluated by means of substrate consumption efficiency, biogas yield, and specific consumption rates as response variables. The high consumption efficiency (90%) and the constant biogas yields obtained at concentrations up to 140 mg C/L may be related with the evenness of microbial populations (J index=0.97±0.2) present in both reactors. Pseudomonas genus was present in all concentrations tested, suggesting a possible relationship with the dehalogenation observed in both reactors. The decrease in specific consumption rate and biogas yield as well as the accumulation of phenol and volatile fatty acids observed in both reactors at 196 mg 2CP-C/L might be associated with the disappearance of the bands related to Caulobacter and Bacillus. At these conditions, the disappearance of fermentative or acetogenic bacteria resulted in reduction of substrates required to carry out methanogenesis, which eventually might cause the declination in methanogenic populations present in the reactors.
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Affiliation(s)
- Lizeth Beristain-Montiel
- a Department of Biotechnology , Universidad Autónoma Metropolitana-Iztapalapa , Av. San Rafael Atlixco 186, Col. Vicentina, Iztapalapa , D.F 09340 , México
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Martínez-Gutiérrez E, Texier AC, de María Cuervo-López F, Gómez J. Consumption of 2-chlorophenol using anaerobic sludge: physiological and kinetic analysis. Appl Biochem Biotechnol 2014; 174:2171-80. [PMID: 25172056 DOI: 10.1007/s12010-014-1166-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 08/15/2014] [Indexed: 11/30/2022]
Abstract
Chlorophenols are toxic and recalcitrant compounds produced by many industrial. Different strategies have been used to improve their biological consumption, but there is insufficient information to understand how the process is carried out. The objective of this study was to evaluate in batch tests the effect of the addition of phenol, acetate, or glucose as electron donors at different concentrations on the efficiencies, yields, and specific rates of 2-chlorophenol (2-CP) consumption. The addition of phenol (177.6 mg C/L), acetate (127.6 mg C/L), or glucose (77.6 mg C/L) increased the 2-CP consumption efficiency up to 54.6, 98.6, and 97.8 %, respectively. With respect to the control assay without electron donor, the specific rate of 2-CP consumption was up to 2.5 times higher with phenol (177.6 mg C/L), 8.4 times higher with acetate (127.6 mg C/L), and 3 times higher with glucose (127.6 mg C/L). The results showed that the type and concentration of electron donor determine the physiological behavior of the anaerobic sludge, modifying efficiency, yield, and specific rate values of the 2-CP consumption process. The addition of readily oxidable cosubstrates seems to be a good alternative and might be used for the biological treatment of industrial wastewater polluted with chlorinated phenols.
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Affiliation(s)
- Emir Martínez-Gutiérrez
- Departamento de Biotecnología, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, 09340, Iztapalapa, D.F., Mexico
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