1
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Takman M, Betsholtz A, Davidsson Å, Cimbritz M, Svahn O, Karlsson S, Karstenskov Østergaard S, Lund Nielsen J, Falås P. Biological degradation of organic micropollutants in GAC filters-temporal development and spatial variations. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134449. [PMID: 38733780 DOI: 10.1016/j.jhazmat.2024.134449] [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: 02/14/2024] [Revised: 04/05/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024]
Abstract
The capacity for organic micropollutant removal in granular activated carbon (GAC) filters for wastewater treatment changes over time. These changes are in general attributed to changes in adsorption, but may in some cases also be affected by biological degradation. Knowledge on the degradation of organic micropollutants, however, is scarce. In this work, the degradation of micropollutants in several full-scale GAC and sand filters was investigated through incubation experiments over a period of three years, using 14C-labeled organic micropollutants with different susceptibilities to biological degradation (ibuprofen, diclofenac, and carbamazepine), with parallel 16S rRNA gene sequencing. The results showed that the degradation of diclofenac and ibuprofen in GAC filters increased with increasing numbers of bed volumes when free oxygen was available in the filter, while variations over filter depth were limited. Despite relatively large differences in bacterial composition between filters, a degradation of diclofenac was consistently observed for the GAC filters that had been operated with high influent oxygen concentration (DO >8 mg/L). The results of this comprehensive experimental work provide an increased understanding of the interactions between microbial composition, filter material, and oxygen availability in the biological degradation of organic micropollutants in GAC filters.
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Affiliation(s)
- Maria Takman
- Department of Process and Life Science Engineering, Division of Chemical Engineering, Lund University, PO Box 124, SE-221 00 Lund, Sweden.
| | - Alexander Betsholtz
- Department of Process and Life Science Engineering, Division of Chemical Engineering, Lund University, PO Box 124, SE-221 00 Lund, Sweden
| | - Åsa Davidsson
- Department of Process and Life Science Engineering, Division of Chemical Engineering, Lund University, PO Box 124, SE-221 00 Lund, Sweden
| | - Michael Cimbritz
- Department of Process and Life Science Engineering, Division of Chemical Engineering, Lund University, PO Box 124, SE-221 00 Lund, Sweden
| | - Ola Svahn
- Department of Environmental Science and Bioscience, Kristianstad University, SE-291 39 Kristianstad, Sweden
| | | | | | - Jeppe Lund Nielsen
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Per Falås
- Department of Process and Life Science Engineering, Division of Chemical Engineering, Lund University, PO Box 124, SE-221 00 Lund, Sweden
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2
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Nie Y, Zhang T, Xu Y, Du Y, Ai J, Xue N. Study on mechanism of removal of sudden Tetracycline by compound modified biological sand filtration process. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120709. [PMID: 38537460 DOI: 10.1016/j.jenvman.2024.120709] [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: 09/12/2023] [Revised: 03/05/2024] [Accepted: 03/19/2024] [Indexed: 04/07/2024]
Abstract
The removal of tetracycline from the sewage plant effluents through advanced treatment methods is key to controlling tetracycline levels in the water environment. In this study, modified quartz sands (QS) were used in a biological sand filter to remove tetracycline. The modified QS, with different surface characteristics, were prepared using glass etching technology combined with subsequent chemical modification methods, including hydroxylation treatment, metal ion modification, and amino modification. The adsorption efficiency of hydroxylated QS was higher than that of metal ion modified and amino modified QS, with adsorption efficiencies of 20.4331 mg/kg, 12.8736 mg/kg, and 10.1737 mg/kg, respectively. Results indicated that QS primarily reduce tetracycline through adsorption. Adsorption on ordinary QS fit the pseudo-first-order kinetic model, while adsorption on other modified QS and biofilm-coated QS fit the pseudo-second-order kinetics model. Biodegradation was identified as another mechanism for tetracycline reduction, which fit the zero-order kinetic model. Pseudomonas alcaligenes and unclassified Pseudomonas accounted for 96.6% of the total tetracycline-degrading bacteria. This study elucidates the effectiveness and mechanisms of five types of QS in treating tetracycline from sewage plant effluents. It provides a novel method for tetracycline reduction in real-world wastewater scenarios.
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Affiliation(s)
- Yudong Nie
- Research Center for Eco-Environmental Science, Chinese Academy of Science, Beijing 100085, China; College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
| | - Tao Zhang
- Research Center for Eco-Environmental Science, Chinese Academy of Science, Beijing 100085, China.
| | - Yufeng Xu
- Research Center for Eco-Environmental Science, Chinese Academy of Science, Beijing 100085, China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541006, China; Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin 541006, China.
| | - Yunfei Du
- School of Foreign Languages, Chongqing University of Technology, Chongqing 400054, China.
| | - Junjie Ai
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
| | - Na Xue
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
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3
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Li X, Lu Z, Wu B, Xie H, Liu G. Antibiotics and antibiotic resistance genes removal in biological aerated filter. BIORESOURCE TECHNOLOGY 2024; 395:130392. [PMID: 38301943 DOI: 10.1016/j.biortech.2024.130392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/03/2024]
Abstract
Two laboratory-level biological aerated filters (BAF) were constructed to explore their treatment capacity for simulated antibiotic wastewater at high (1 - 16 mg/L) and low (0 - 0.5 mg/L) concentrations. Results showed that BAF was capable of removing both sulfonamides and tetracyclines with an efficiency of over 90 % at 16 mg/L. The main mechanism for removing antibiotics was found to be biodegradation followed by adsorption. Paenarthrobacter was identified as the key genus in sulfonamides degradation, while Hydrogenophaga played a crucial role in tetracyclines degradation. Antibiotics resistant genes such as intI1, sul1, sul2, tetA, tetW and tetX were frequently detected in the effluent, with interception rates ranging from 105 - 106 copies/mL. The dominated microorganisms obtained in the study could potentially be utilized to enhance the capacity of biological processes for treating antibiotics contaminated wastewater. These findings contribute to a better understanding of BAF treating wastewater containing antibiotics and resistant genes.
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Affiliation(s)
- Xiangkun Li
- School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Ziyi Lu
- School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Baoli Wu
- North China Municipal Engineering Design & Research Institute Co.,Ltd., Tianjin 300381, China
| | - Hongwei Xie
- School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Gaige Liu
- School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China.
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4
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Dzionek A, Nowak A, Wojcieszyńska D, Potocka I, Smułek W, Guzik U. Decomposition of non-steroidal anti-inflammatory drugs by activated sludge supported by biopreparation in sequencing batch reactor. BIORESOURCE TECHNOLOGY 2024; 395:130328. [PMID: 38242239 DOI: 10.1016/j.biortech.2024.130328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/29/2023] [Accepted: 01/11/2024] [Indexed: 01/21/2024]
Abstract
The presence of non-steroidal anti-inflammatory drugs in wastewater from sewage treatment plants indicates that they are not completely biodegradable. The designed biopreparation based on immobilized bacteria enables the degradation of paracetamol, ibuprofen, naproxen and diclofenac at a rate of 0.50 mg/L*day, 0.14 mg/L*day, 0.16 mg/L*day and 0.04 mg/L*day, respectively. Lower degradation of drugs in the mixture than in monosubstrate systems indicates their additive, antagonistic effect, limiting the degradative capacity of microorganisms. The biopreparation is stable for at least 6 weeks in bioreactor conditions. Biochemical parameters of activated sludge functioning showed increased oxygen demand, which was related to increased ammonia concentration caused by long-term exposure of activated sludge to drugs. Reduced metabolic activity was also observed. The preparation enables decomposing drugs and their metabolites, restoring the activated sludge's functionality. The tested biopreparation can support activated sludge in sewage treatment plants in degrading non-steroidal anti-inflammatory drugs and phenolic compounds.
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Affiliation(s)
- Anna Dzionek
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Science, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland.
| | - Agnieszka Nowak
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Science, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland.
| | - Danuta Wojcieszyńska
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Science, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland.
| | - Izabela Potocka
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Science, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland.
| | - Wojciech Smułek
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, 60-965 Poznan, Poland.
| | - Urszula Guzik
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Science, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland.
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5
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Liu J, Wang Z, Zhao C, Lu B, Zhao Y. Phytohormone gibberellins treatment enhances multiple antibiotics removal efficiency of different bacteria-microalgae-fungi symbionts. BIORESOURCE TECHNOLOGY 2024; 394:130182. [PMID: 38081467 DOI: 10.1016/j.biortech.2023.130182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/06/2023] [Accepted: 12/06/2023] [Indexed: 02/04/2024]
Abstract
To develop and characterize novel antibiotics removal biomaterial technology, we constructed three different bacteria-microalgae-fungi consortiums containing Chlorella vulgaris (C. vulgaris), endophytic bacterium, Clonostachys rosea (C. rosea), Ganoderma lucidum, and Pleurotus pulmonarius. The results showed that under treatment with 50 mg/L of gibberellins (GAs), the three bacteria-microalgae-fungi symbionts had maximal growth rates (0.317 ± 0.030 d-1) and the highest removal efficiency for seven different antibiotics. Among them, C. vulgaris-endophytic bacterium-C. rosea symbiont had the best performance, with antibiotics removal efficiencies of 96.0 ± 1.4 %, 91.1 ± 7.9 %, 48.7 ± 5.1 %, 34.6 ± 2.9 %, 61.0 ± 5.5 %, 63.7 ± 5.6 %, and 54.3 ± 4.9 % for tetracycline hydrochloride, oxytetracycline hydrochloride, ciprofloxacin, norfloxacin, sulfadiazine, sulfamethazine, and sulfamethoxazole, respectively. Overall, the present study demonstrates that 50 mg/L GAs enhances biomass production and antibiotics removal efficiency of bacteria-microalgae-fungi symbionts, providing a framework for future antibiotics-containing wastewater treatment using three-phase symbionts.
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Affiliation(s)
- Jun Liu
- School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Zhengfang Wang
- Suzhou Institute of Trade & Commerce, Suzhou 215009, China
| | - Chunzhi Zhao
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201400, China
| | - Bei Lu
- School of Ecological Technology & Engineering, Shanghai Institute of Technology, Shanghai 201400, China
| | - Yongjun Zhao
- School of Engineering, Hangzhou Normal University, Hangzhou 311121, China.
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6
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Aguilar-Aguilar A, de León-Martínez LD, Forgionny A, Acelas Soto NY, Mendoza SR, Zárate-Guzmán AI. A systematic review on the current situation of emerging pollutants in Mexico: A perspective on policies, regulation, detection, and elimination in water and wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167426. [PMID: 37774864 DOI: 10.1016/j.scitotenv.2023.167426] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/01/2023]
Abstract
Emerging pollutants (EPs) emerged as a group of new compounds whose presence in the environment has been widely detected in Mexico. In this country, different concentrations of pharmaceutical compounds, pesticides, dyes, and microplastics have been reported, which vary depending on the region and the analyzed matrix (i.e., wastewater, surface water, groundwater). The evidence of the EPs' presence focuses on the detection of them, but there is a gap in information regarding is biomonitoring and their effects in health in Mexico. The presence of these pollutants in the country associated with lack of proper regulations in the discharge and disposal of EPs. Therefore, this review aims to provide a comprehensive view of the current environmental status, policies, and frameworks regarding Mexico's situation. The review also highlights the lack of information about biomonitoring since EPs are present in water even after their treatment, leading to a critical situation, which is high exposure to humans and animals. Although, technologies to efficiently eliminate EPs are available, their application has been reported only at a laboratory scale thus far. Here, an overview of health and environmental impacts and a summary of the research works reported in Mexico from 2014 to 2023 were presented. This review concludes with a concrete point of view and perspective on the status of the EPs' research in Mexico as an alert for government entities about the necessity of measures to control the EPs disposal and treatment.
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Affiliation(s)
- Angélica Aguilar-Aguilar
- Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78210, Mexico
| | | | - Angélica Forgionny
- Grupo de Materiales con Impacto, Mat&mpac, Facultad de Ciencias Básicas, Universidad de Medellín, Medellín 55450, Colombia
| | - Nancy Y Acelas Soto
- Grupo de Materiales con Impacto, Mat&mpac, Facultad de Ciencias Básicas, Universidad de Medellín, Medellín 55450, Colombia
| | - Sergio Rosales Mendoza
- Centro de Investigación en Ciencias de la Salud y Biomedicina, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Manuel Nava No. 201, San Luis Potosí 78210, Mexico
| | - Ana I Zárate-Guzmán
- Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78210, Mexico.
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7
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Lin JY, Zhang Y, Bian Y, Zhang YX, Du RZ, Li M, Tan Y, Feng XS. Non-steroidal anti-inflammatory drugs (NSAIDs) in the environment: Recent updates on the occurrence, fate, hazards and removal technologies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166897. [PMID: 37683862 DOI: 10.1016/j.scitotenv.2023.166897] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023]
Abstract
Non-steroidal Anti-inflammatory Drugs (NSAIDs) are extensively utilized pharmaceuticals worldwide. However, owing to the improper discharge and disposal practices, they have emerged as significant contaminants that are widely distributed in water, soils, and sewage sediments. This ubiquity poses a substantial threat to the ecosystem and human health. Consequently, it is imperative to develop rapid, cost-effective, efficient and reliable approaches for containing these substance in order to mitigate the deleterious impact of NSAIDs. This research provides a comprehensive review of the occurrence, fate, and hazards associated with NSAIDs in the general environment. Additionally, various removal technologies, including advanced oxidation processes, biodegradation, and adsorption, were systematically summarized. The study also presents a comparative analysis of the benefits and drawbacks of different removal technologies while interpreting challenges related to NSAIDs' removal and proposing strategies for future development.
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Affiliation(s)
- Jia-Yuan Lin
- School of Pharmacy, China Medical University, Shenyang 110122, China; Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yuan Zhang
- School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Yu Bian
- School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Yi-Xin Zhang
- School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Rong-Zhu Du
- School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Ming Li
- Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing 100029, China
| | - Yue Tan
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang 110022, China
| | - Xue-Song Feng
- School of Pharmacy, China Medical University, Shenyang 110122, China.
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8
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Tawalbeh M, Mohammed S, Al-Othman A, Yusuf M, Mofijur M, Kamyab H. MXenes and MXene-based materials for removal of pharmaceutical compounds from wastewater: Critical review. ENVIRONMENTAL RESEARCH 2023; 228:115919. [PMID: 37072081 DOI: 10.1016/j.envres.2023.115919] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/10/2023] [Accepted: 04/14/2023] [Indexed: 05/16/2023]
Abstract
The rapid increase in the global population and its ever-rising standards of living are imposing a huge burden on global resources. Apart from the rising energy needs, the demand for freshwater is correspondingly increasing. A population of around 3.8 billion people will face water scarcity by 2030, as per the reports of the World Water Council. This may be due to global climate change and the deficiency in the treatment of wastewater. Conventional wastewater treatment technologies fail to completely remove several emerging contaminants, especially those containing pharmaceutical compounds. Hence, leading to an increase in the concentration of harmful chemicals in the human food chain and the proliferation of several diseases. MXenes are transition metal carbide/nitride ceramics that primarily structure the leading 2D material group. MXenes act as novel nanomaterials for wastewater treatment due to their high surface area, excellent adsorption properties, and unique physicochemical properties, such as high electrical conductivity and hydrophilicity. MXenes are highly hydrophilic and covered with active functional groups (i.e., hydroxyl, oxygen, fluorine, etc.), which makes them efficient adsorbents for a wide range of species and promising candidates for environmental remediation and water treatment. This work concludes that the scaling up process of MXene-based materials for water treatment is currently of high cost. The up-to-date applications are still limited because MXenes are currently produced mainly in the laboratory with limited yield. It is recommended to direct research efforts towards lower synthesis cost procedures coupled with the use of more environmentally friendly materials to avoid secondary contamination.
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Affiliation(s)
- Muhammad Tawalbeh
- Sustainable and Renewable Energy Engineering Department, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates; Sustainable Energy & Power Systems Research Centre, RISE, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates.
| | - Shima Mohammed
- Sustainable and Renewable Energy Engineering Department, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates
| | - Amani Al-Othman
- Department of Chemical and Biological Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Mohammad Yusuf
- Institute of Hydrocarbon Recovery (IHR), Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, 32610, Malaysia.
| | - M Mofijur
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW, 2007, Australia; Mechanical Engineering Department, Prince Mohammad Bin Fahd University, Al Khobar, 31952, Saudi Arabia
| | - Hesam Kamyab
- Faculty of Architecture and Urbanism, UTE University, Calle Rumipamba S/N and Bourgeois, Quito, Ecuador; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600 077, India; Process Systems Engineering Centre (PROSPECT), Faculty of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
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9
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Cao Y, Wang L, Wang Y, Wang X, Wei J, Yu T, Ma F. Functional fungal pellets self-immobilized by mycelium fragments of Irpex lacteus WRF-IL for efficient degradation of sulfamethazine as the sole carbon source. BIORESOURCE TECHNOLOGY 2023:129376. [PMID: 37355140 DOI: 10.1016/j.biortech.2023.129376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 06/26/2023]
Abstract
In order to achieve an efficient microbial material with dual functions of self-immobilization and sulfamethazine (SMZ) degradation, this study explored the pelletization technique utilizing mycelium fragments of Irpex lacteus WRF-IL and systematically examined the pellets formation conditions and degradation capability. The Box-Behnken design results demonstrated that pure mycelium fragments, broken by frosted glass beads, could be rapidly self-immobilized to form white rot mycelial pellets (WRMPs) within 24 h, serving as the pelleting core. These WRMPs could completely remove SMZ as the sole carbon source within 20 h. The addition of sucrose expedited this process, achieving complete removal within only 14 h. Kinetic analysis showed that WRMPs could potentially remove SMZ at higher concentrations (>25 mg/L). Biodegradation was the primary pathway of SMZ removal. Seven intermediates were identified by QTOF LC/MS, and three transformation pathways initiated by SO2 overflow, molecular rearrangement, and aniline moiety oxidation were deduced.
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Affiliation(s)
- Yuqing Cao
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Li Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China.
| | - Yujiao Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Xin Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Jiayu Wei
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Tianmiao Yu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
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10
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Chen W, Wang B, Wang Y, Li J. Understanding the cometabolic degradation of sulfadiazine by an enriched ammonia oxidizing bacteria culture from both extracellular and intracellular perspectives. CHEMOSPHERE 2023:139244. [PMID: 37330061 DOI: 10.1016/j.chemosphere.2023.139244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/09/2023] [Accepted: 06/14/2023] [Indexed: 06/19/2023]
Abstract
Antibiotics are widely used drugs in the world and pose serious threats to ecosystems and human health. Although it has been reported that ammonia oxidizing bacteria (AOB) can cometabolize antibiotics, little has been reported on how AOB would respond to the exposure of antibiotics on extracellular and enzymatic levels, as well as the impact of antibiotics on the bioactivity of AOB. Therefore, in this study, a typical antibiotic, sulfadiazine (SDZ), was selected, and a series short-term batch tests using enriched AOB sludge were conducted to investigate the intracellular and extracellular responses of AOB along the cometabolic degradation process of SDZ. The results showed the cometabolic degradation of AOB made the main contribution to SDZ removal. When the enriched AOB sludge was exposed to SDZ, ammonium oxidation rate, ammonia monooxygenase activity, adenosine triphosphate concentration and dehydrogenases activity were negatively affected. The amoA gene abundance increased 1.5 folds within 24 h, which may enhance the uptake and utilization of substrates and maintain stable metabolic activity. In the tests with and without ammonium, the concentration of total EPS increased from 264.9 to 231.1 mg/gVSS to 607.7 and 538.2 mg/gVSS, respectively, under the exposure to SDZ, which was mainly contributed by the increase of proteins in tightly bound extracellular polymeric substances (EPS) and polysacharides in tightly bound EPS and soluble microbial products. The proportion of tryptophan-like protein and humic acid-like organics in EPS also increased. Moreover, SDZ stress stimulated the secretion of three quorum sensing signal molecules, C4-HSL (from 140.3 to 164.9 ng/L), 3OC6-HSL (from 17.8 to 42.4 ng/L) and C8-HSL (from 35.8 to 95.9 ng/L) in the enriched AOB sludge. Among them, C8-HSL may be a key signal molecule that promoted the secretion of EPS. The findings of this study could shed more light on the cometabolic degradation of antibiotics by AOB.
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Affiliation(s)
- Weiping Chen
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi, 214122, China
| | - Bingzheng Wang
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi, 214122, China.
| | - Yaqing Wang
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi, 214122, China
| | - Ji Li
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi, 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Jiangnan University, Wuxi, 214122, China; Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou, 215009, China.
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11
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Dai W, Pang JW, Ding J, Wang YQ, Zhang LY, Ren NQ, Yang SS. Study on the removal characteristics and degradation pathways of highly toxic and refractory organic pollutants in real pharmaceutical factory wastewater treated by a pilot-scale integrated process. Front Microbiol 2023; 14:1128233. [PMID: 36970662 PMCID: PMC10034018 DOI: 10.3389/fmicb.2023.1128233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/21/2023] [Indexed: 03/12/2023] Open
Abstract
IntroductionPharmaceutical wastewater frequently contains high levels of toxic pollutants. If they are discharged untreated, they pose a threat to the environment. The traditional activated sludge process and the advanced oxidation process do not sufficiently remove toxic and conventional pollutants from pharmaceutical wastewater treatment plants (PWWTPs).MethodsWe designed a pilot-scale reaction system to reduce toxic organic pollutants and conventional pollutants from pharmaceutical wastewater during the biochemical reaction stage. This system included a continuous stirred tank reactor (CSTR), microbial electrolysis cells (MECs), an expanded sludge bed reactor (EGSB), and a moving bed biofilm reactor (MBBR). We used this system to further investigate the benzothiazole degradation pathway.Results and discussionThe system effectively degraded the toxic pollutants (benzothiazole, pyridine, indole, and quinoline) and the conventional chemicals (COD, NH4+-N, TN). During the stable operation of the pilot-scale plant, the total removal rates of benzothiazole, indole, pyridine, and quinoline were 97.66, 94.13, 79.69, and 81.34%, respectively. The CSTR and MECs contributed the most to the removal of toxic pollutants, while the EGSB and MBBR contributed less to the removal of the four toxic pollutants. Benzothiazoles can be degraded via two pathways: the benzene ring-opening reaction and the heterocyclic ring-opening reaction. The heterocyclic ring-opening reaction was more important in degrading the benzothiazoles in this study.ConclusionThis study provides feasible design alternatives for PWWTPs to remove both toxic and conventional pollutants at the same time.
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Affiliation(s)
- Wei Dai
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
| | - Ji-Wei Pang
- China Energy Conservation and Environmental Protection Group, CECEP Talroad Technology Co., Ltd., Beijing, China
| | - Jie Ding
- National Engineering Research Center for Bioenergy, Harbin Institute of Technology, Harbin, China
- *Correspondence: Jie Ding,
| | - Yu-Qian Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
| | - Lu-Yan Zhang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, China
| | - Nan-Qi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
| | - Shan-Shan Yang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
- Shan-Shan Yang,
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12
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Ajala OA, Akinnawo SO, Bamisaye A, Adedipe DT, Adesina MO, Okon-Akan OA, Adebusuyi TA, Ojedokun AT, Adegoke KA, Bello OS. Adsorptive removal of antibiotic pollutants from wastewater using biomass/biochar-based adsorbents. RSC Adv 2023; 13:4678-4712. [PMID: 36760292 PMCID: PMC9897205 DOI: 10.1039/d2ra06436g] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/22/2022] [Indexed: 02/05/2023] Open
Abstract
This study explores adsorptive removal measures to shed light on current water treatment innovations for kinetic/isotherm models and their applications to antibiotic pollutants using a broad range of biomass-based adsorbents. The structure, classifications, sources, distribution, and different techniques for the remediation of antibiotics are discussed. Unlike previous studies, a wide range of adsorbents are covered and adsorption of comprehensive classes of antibiotics onto biomass/biochar-based adsorbents are categorized as β-lactam, fluoroquinolone, sulfonamide, tetracycline, macrolides, chloramphenicol, antiseptic additives, glycosamides, reductase inhibitors, and multiple antibiotic systems. This allows for an assessment of their performance and an understanding of current research breakthroughs in applying various adsorbent materials for antibiotic removal. Distinct from other studies in the field, the theoretical basis of different isotherm and kinetics models and the corresponding experimental insights into their applications to antibiotics are discussed extensively, thereby identifying the associated strengths, limitations, and efficacy of kinetics and isotherms for describing the performances of the adsorbents. In addition, we explore the regeneration of adsorbents and the potential applications of the adsorbents in engineering. Lastly, scholars will be able to grasp the present resources employed and the future necessities for antibiotic wastewater remediation.
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Affiliation(s)
- Oluwaseyi Aderemi Ajala
- Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1, Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Solomon Oluwaseun Akinnawo
- Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology P. M. B. 4000 Ogbomoso Oyo State Nigeria
- Department of Chemical Sciences, Olusegun Agagu University of Science and Technology P. M. B. 353 Okitipupa Ondo State Nigeria
| | - Abayomi Bamisaye
- Department of Chemical Sciences, Faculty of Natural and Applied Sciences, Lead City University Ibadan Oyo State Nigeria
| | - Demilade Tunrayo Adedipe
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong SAR China
| | - Morenike Oluwabunmi Adesina
- Department of Chemical Sciences, Faculty of Natural and Applied Sciences, Lead City University Ibadan Oyo State Nigeria
| | - Omolabake Abiodun Okon-Akan
- Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology P. M. B. 4000 Ogbomoso Oyo State Nigeria
- Wood and Paper Technology Department, Federal College of Forestry Jericho Ibadan Nigeria
| | | | - Adedamola Titi Ojedokun
- Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology P. M. B. 4000 Ogbomoso Oyo State Nigeria
| | - Kayode Adesina Adegoke
- Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology P. M. B. 4000 Ogbomoso Oyo State Nigeria
| | - Olugbenga Solomon Bello
- Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology P. M. B. 4000 Ogbomoso Oyo State Nigeria
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13
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Tian J, Chen C, Lartey-Young G, Ma L. Biodegradation of cefalexin by two bacteria strains from sewage sludge. ROYAL SOCIETY OPEN SCIENCE 2023; 10:220442. [PMID: 36686552 PMCID: PMC9832293 DOI: 10.1098/rsos.220442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Bioremediation has been used as an environmentally-friendly, energy-saving and efficient method for removing pollutants. However, there have been very few studies focusing on the specific antibiotic-degrading microorganisms in the activated sludge and their degradation mechanism. Two strains of cefalexin-degrading bacteria (Rhizobium sp. (CLX-2) and Klebsiella sp. (CLX-3)) were isolated from the activated sludge in this study. They were capable of rapidly eliminating over 99% of cefalexin at an initial concentration of 10 mg l-1 within 12 h. The exponential phase of cefalexin degradation happened a little earlier than that of bacterial growth. The first-order kinetic model could elucidate the biodegradation process of cefalexin. The optimized environmental temperature and pH values for rapid biodegradation by these two strains were found to be 30°C and 6.5-7, respectively. Furthermore, two major biodegradation metabolites of CLX-3, 7-amino-3-cephem-4-carboxylic acid and 2-hydroxy-3-phenyl pyrazine were identified using UHPLC-MS and the biodegradation pathway of cefalexin was proposed. Overall, the results showed that Rhizobium sp. (CLX-2) and Klebsiella sp. (CLX-3) could possibly be useful resources for antibiotic pollution remediation.
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Affiliation(s)
- Jichen Tian
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Chong Chen
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - George Lartey-Young
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Limin Ma
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
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14
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Yang L, Yuan C, Chen X, Xue W, Cao G, Meng S, Bai L. The effect of nitrification inhibitors on the aerobic biodegradation of tetracycline antibiotics in swine wastewater. CHEMOSPHERE 2023; 311:136849. [PMID: 36252901 DOI: 10.1016/j.chemosphere.2022.136849] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/21/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
The aerobic biotreatment process for the dual goals of antibiotic removal and ammonia retainment for the field-return-based treatment of swine wastewater was optimized by adding 2-chloro-6-trichloromethylpyridine (TCMP), commonly used as a nitrogen fertilizer synergist. The results show that the dosage of 5-10 mg/L TCMP daily effectively inhibited nitrification. The COD and tetracycline antibiotics (TCs) in the absence of TCMP was removed by 91% and 76%, and became 87% and 78% with 5 mg/L TCMP and 83% and 70% with 10 mg/L TCMP, respectively. The removal efficiency of four TCs generally followed a decreasing trend of chlortetracycline (CTC) > doxycycline (DC) > tetracycline (TC) > oxytetracycline (OTC). A dosage of 5 mg/L TCMP daily inhibited ammonia nitrification effectively and only slightly affected the removal of conventional organic pollutants and TCs. The contribution of volatilization and hydrolysis to the removal of TCs was negligible. The overall removal efficiency of four TCs in removal pathway experiments was 98%, 94%, 97%, and 96% for OTC, CTC, DC, and TC, of which 69%, 41%, 56%, and 62% was contributed by absorption, and 29%, 53%, 41%, and 34% was contributed by biodegradation, respectively. This study may have significant implications for the proper management of livestock wastewater intended to be used as fertilizers, which aims to reduce the exposure risk of antibiotics and preserve its nutrient value.
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Affiliation(s)
- Linyan Yang
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, East China University of Science and Technology, Shanghai, 200237, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China; School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
| | - Cheng Yuan
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Xueming Chen
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment and Safety Engineering, Fuzhou University, Fuzhou, Fujian, 350116, PR China
| | - Weibo Xue
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Guomin Cao
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, East China University of Science and Technology, Shanghai, 200237, PR China; School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Shujuan Meng
- School of Space and Environment, Beihang University, Beijing, 100191, PR China
| | - Lichun Bai
- Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, 410075, PR China
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15
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Chauhan S, Shafi T, Dubey BK, Chowdhury S. Biochar-mediated removal of pharmaceutical compounds from aqueous matrices via adsorption. WASTE DISPOSAL & SUSTAINABLE ENERGY 2022; 5:37-62. [PMID: 36568572 PMCID: PMC9757639 DOI: 10.1007/s42768-022-00118-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 12/23/2022]
Abstract
Pharmaceutical is one of the noteworthy classes of emerging contaminants. These biologically active compounds pose a range of deleterious impacts on human health and the environment. This is attributed to their refractory behavior, poor biodegradability, and pseudopersistent nature. Their large-scale production by pharmaceutical industries and subsequent widespread utilization in hospitals, community health centers, and veterinary facilities, among others, have significantly increased the occurrence of pharmaceutical residues in various environmental compartments. Several technologies are currently being evaluated to eliminate pharmaceutical compounds (PCs) from aqueous environments. Among them, adsorption appears as the most viable treatment option because of its operational simplicity and low cost. Intensive research and development efforts are, therefore, currently underway to develop inexpensive adsorbents for the effective abatement of PCs. Although numerous adsorbents have been investigated for the removal of PCs in recent years, biochar-based adsorbents have garnered tremendous scientific attention to eliminate PCs from aqueous matrices because of their decent specific surface area, tunable surface chemistry, scalable production, and environmentally benign nature. This review, therefore, attempts to provide an overview of the latest progress in the application of biochar for the removal of PCs from wastewater. Additionally, the fundamental knowledge gaps in the domain knowledge are identified and novel strategic research guidelines are laid out to make further advances in this promising approach towards sustainable development.
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Affiliation(s)
- Sahil Chauhan
- grid.429017.90000 0001 0153 2859School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302 India
| | - Tajamul Shafi
- grid.429017.90000 0001 0153 2859School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302 India
| | - Brajesh Kumar Dubey
- grid.429017.90000 0001 0153 2859Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302 India
| | - Shamik Chowdhury
- grid.429017.90000 0001 0153 2859School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302 India
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16
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Pirsaheb M, Moradi N, Hossini H. Sonochemical processes for antibiotics removal from water and wastewater: A systematic review. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Mussa ZH, Al-Qaim FF, Jawad AH, Scholz M, Yaseen ZM. A Comprehensive Review for Removal of Non-Steroidal Anti-Inflammatory Drugs Attained from Wastewater Observations Using Carbon-Based Anodic Oxidation Process. TOXICS 2022; 10:598. [PMID: 36287878 PMCID: PMC9610849 DOI: 10.3390/toxics10100598] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/10/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) (concentration <µg/L) are globally acknowledged as hazardous emerging pollutants that pass via various routes in the environment and ultimately enter aquatic food chains. In this context, the article reviews the occurrence, transport, fate, and electrochemical removal of some selected NSAIDs (diclofenac (DIC), ketoprofen (KTP), ibuprofen (IBU), and naproxen (NPX)) using carbon-based anodes in the aquatic environment. However, no specific protocol has been developed to date, and various approaches have been adopted for the sampling and elimination processes of NSAIDs from wastewater samples. The mean concentration of selected NSAIDs from different countries varies considerably, ranging between 3992−27,061 µg/L (influent wastewater) and 1208−7943 µg/L (effluent wastewater). An assessment of NSAIDs removal efficiency across different treatment stages in various wastewater treatment plants (WWTPs) has been performed. Overall, NSAIDs removal efficiency in wastewater treatment plants has been reported to be around 4−89%, 8−100%, 16−100%, and 17−98% for DIC, KTP, NPX, and IBU, respectively. A microbiological reactor (MBR) has been proclaimed to be the most reliable treatment technique for NSAIDs removal (complete removal). Chlorination (81−95%) followed by conventional mechanical biological treatment (CMBT) (94−98%) treatment has been demonstrated to be the most efficient in removing NSAIDs. Further, the present review explains that the electrochemical oxidation process is an alternative process for the treatment of NSAIDs using a carbon-based anode. Different carbon-based carbon anodes have been searched for electrochemical removal of selected NSAIDs. However, boron-doped diamond and graphite have presented reliable applications for the complete removal of NSAIDs from wastewater samples or their aqueous solution.
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Affiliation(s)
| | - Fouad Fadhil Al-Qaim
- College of Medicine, University of Warith Al-Anbiyaa, Karbala 56001, Iraq
- Department of Chemistry, College of Science for Women, University of Babylon, Hillah 51001, Iraq
| | - Ali H Jawad
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia
| | - Miklas Scholz
- Directorate of Engineering the Future, School of Science, Engineering and Environment, The University of Salford, Newton Building, Salford M5 4WT, Greater Manchester, UK
- Department of Civil Engineering Science, School of Civil Engineering and the Built Environment, University of Johannesburg, Kingsway Campus, Johannesburg 2092, South Africa
- Department of Town Planning, Engineering Networks and Systems, South Ural State University (National Research University), 76, Lenin Prospekt, 454080 Chelyabinsk, Russia
| | - Zaher Mundher Yaseen
- Civil and Environmental Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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18
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Rahman A, Jennings JR, Tan AL, Khan MM. Molybdenum Disulfide-Based Nanomaterials for Visible-Light-Induced Photocatalysis. ACS OMEGA 2022; 7:22089-22110. [PMID: 35811905 PMCID: PMC9260757 DOI: 10.1021/acsomega.2c01314] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/08/2022] [Indexed: 05/08/2023]
Abstract
Visible-light-responsive photocatalytic materials have a multitude of important applications, ranging from energy conversion and storage to industrial waste treatment. Molybdenum disulfide (MoS2) and its variants exhibit high photocatalytic activity under irradiation by visible light as well as good stability and recyclability, which are desirable for all photocatalytic applications. MoS2-based materials have been widely applied in various fields such as wastewater treatment, environmental remediation, and organic transformation reactions because of their excellent physicochemical properties. The present review focuses on the fundamental properties of MoS2, recent developments and remaining challenges, and key strategies for tackling issues related to the utilization of MoS2 in photocatalysis. The application of MoS2-based materials in visible-light-induced catalytic reactions for the treatment of diverse kinds of pollutants including industrial, environmental, pharmaceutical, and agricultural waste are also critically discussed. The review concludes by highlighting the prospects of MoS2 for use in various established and emerging areas of photocatalysis.
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Affiliation(s)
- Ashmalina Rahman
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - James Robert Jennings
- Applied
Physics, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
- Optoelectronic
Device Research Group, Universiti Brunei
Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Ai Ling Tan
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Mohammad Mansoob Khan
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
- Optoelectronic
Device Research Group, Universiti Brunei
Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
- ;
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19
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Elshikh MS, Hussein DS, Al-Khattaf FS, Rasheed El-Naggar RA, Almaary KS. Diclofenac removal from the wastewater using activated sludge and analysis of multidrug resistant bacteria from the sludge. ENVIRONMENTAL RESEARCH 2022; 208:112723. [PMID: 35063434 DOI: 10.1016/j.envres.2022.112723] [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: 06/28/2021] [Revised: 11/04/2021] [Accepted: 01/04/2022] [Indexed: 06/14/2023]
Abstract
Diclofenac is an anti-inflammatory drug and has been frequently detected from the wastewater. In the present study, factors affecting diclofenac adsorption on sewage sludge was evaluated. At 1 mg/L initial diclofenac concentration, more than 80% diclofenac removal was achieved. Adsorption increased at higher concentration (100 mg/L concentration) and more than 99% diclofenac was adsorbed from the wastewater. Significant removal of diclofenac was observed after 5 min contact time. The adsorption efficacy was more than 98% after 50 and 60 min. Pseudo-first and second order kinetics revealed reasonable regression value (0.9) indicated that the model is best fitted. Diclofenac adsorption was extremely high at acidic pHs than alkaline range. The sludge samples showed the presence of multi drug resistant bacteria. Vancomycin-resistant enterococcus stains were 27%, Methicillin-resistant Staphylococcus aureus positive strains were 16.5% and Extended-spectrum betal-lactamase-harbouring Enterobacteriacea were 65.4% in the sludge. The drug resistance Enterobacteriaceae revealed 14 Klebsiella pneumonia strains, 11 strains from E. coli and two from the genus Enterobacter. To conclude, the activated sludge could be effectively utilized for the removal of diclofenac from wastewater.
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Affiliation(s)
- Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia.
| | - Dina S Hussein
- Department of Chemistry, College of Sciences and Health, Cleveland State University, Cleveland, USA
| | - Fatimah S Al-Khattaf
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Rabab Ahmed Rasheed El-Naggar
- Department of Histology and Cell Biology, Faculty of Medicine, King Salman International University, South Sinai, Egypt
| | - Khalid S Almaary
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
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Niu X, Liu C, Li L, Han X, Chang C, Li P, Chen J. High specific surface area N-doped activated carbon from hydrothermal carbonization of shaddock peel for the removal of norfloxacin from aqueous solution. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:2964-2979. [PMID: 35638799 DOI: 10.2166/wst.2022.163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A novel N-doped activated carbon (NAC) derived from shaddock peel was investigated to remove norfloxacin (NFX) from aqueous solution. The Box-Behnken central composite design (BBD) was used to optimize the preparation conditions of NAC. The specific surface area of NAC was 2,481.81 m2 g-1, which was obtained at 1,106 K activation temperature, 2.4 h residence time, and 2.3:1 mass ratio of KOH to hydrochar. Moreover, the equilibrium data were perfectly represented by Langmuir and Koble-Corrigan isotherms, and the adsorption process was precisely described by the pseudo-second-order kinetic model. Besides, the adsorption of NFX on NAC was mainly controlled by π-π electron-donor-acceptor (EDA) interaction, hydrophobic effect, hydrogen-bonding, electrostatic interaction and Lewis acid-base effect. The maximum monolayer adsorption capacity of NFX was 746.29 mg g-1 at 298 K, implying that NAC was a promising adsorbent for the removal of NFX from aqueous solution.
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Affiliation(s)
- Xinyong Niu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China E-mail:
| | - Chenglin Liu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China E-mail:
| | - Lin Li
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China E-mail:
| | - Xiuli Han
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China E-mail:
| | - Chun Chang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China E-mail:
| | - Pan Li
- School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Junying Chen
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China E-mail:
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21
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Sugioka M, Yoshida N, Yamane T, Kakihana Y, Higa M, Matsumura T, Sakoda M, Iida K. Long-term evaluation of an air-cathode microbial fuel cell with an anion exchange membrane in a 226L wastewater treatment reactor. ENVIRONMENTAL RESEARCH 2022; 205:112416. [PMID: 34808126 DOI: 10.1016/j.envres.2021.112416] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/13/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
Although the treatment of municipal wastewater using microbial fuel cells (MFCs) has been extensively studied, scaling the systems up for practical use remains challenging. In this study, a 226 L sewage treatment reactor was equipped with 27 MFC units, and its chemical oxygen demand (COD) removal and electricity production were evaluated. The MFC units were tubular air cores with a diameter of 5 cm and length of 100 cm, which were wrapped with a carbon-based cathode, anion exchange membrane (AEM), and nonwoven graphite fabric. The air-cathode-AEM MFC generated 0.12-0.30 A/m2, 0.072-0.51 W/m3, and 1.7-4.6 Wh/m3 in a chemostat reactor with a COD of 140-36 mg/L and hydraulic retention time (HRT) of 9-42 h throughout a year. The decrease in the COD was represented as the first-order rate constant of 0.038. The rate constant was comparable to that of other air-cathode MFCs with cation exchange membranes, indicating the necessity of a posttreatment to meet the discharge standard. It has been estimated that the MFC operation for 24 h before post-aeration can reduce the energy required to meet the discharge standard by 70%, suggesting the potential applicability of MFC in long HRT-treatments such as oxidation ditch. The resistances of the anode, cathode, and AEM were 15, 7.0, and 0.51 mΩ m2, respectively, and surface dirt rather than deterioration primarily increased the AEM resistance. A current exceeding 0.2 A/m2 significantly increases the anode potential, indicating that the current was limited by low COD. Increasing the anode-specific surface area can improve air-AEM MFCs used for practical applications.
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Affiliation(s)
- Mari Sugioka
- Department of Civil and Environmental Engineering, Nagoya Institute of Technology (Nitech), Gokiso-Cho, Showa-Ku, Nagoya, Aichi, Japan
| | - Naoko Yoshida
- Department of Civil and Environmental Engineering, Nagoya Institute of Technology (Nitech), Gokiso-Cho, Showa-Ku, Nagoya, Aichi, Japan.
| | - Taiki Yamane
- Department of Civil and Environmental Engineering, Nagoya Institute of Technology (Nitech), Gokiso-Cho, Showa-Ku, Nagoya, Aichi, Japan
| | - Yuriko Kakihana
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Japan
| | - Mitsuru Higa
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Japan
| | | | - Mitsuhiro Sakoda
- Water & Sewage Department, Tamano Consultants Co., Ltd., 2-17-14, Higashisakura, Higashi-ku, Nagoya, Aichi, Japan
| | - Kazuki Iida
- River & Water Resources Division, NIPPON KOEI Co., Ltd., 5-4 Kojimachi, Chiyoda-ku, Tokyo, Japan
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22
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Chen X, Yang Y, Ke Y, Chen C, Xie S. A comprehensive review on biodegradation of tetracyclines: Current research progress and prospect. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 814:152852. [PMID: 34995606 DOI: 10.1016/j.scitotenv.2021.152852] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 05/12/2023]
Abstract
The release of tetracyclines (TCs) in the environment is of significant concern because the residual antibiotics may promote resistance in pathogenic microorganisms, and the transfer of antibiotic resistance genes poses a potential threat to ecosystems. Microbial biodegradation plays an important role in removing TCs in both natural and artificial systems. After long-term acclimation, microorganisms that can tolerate and degrade TCs are retained to achieve efficient removal of TCs under the optimum conditions (e.g. optimal operational parameters and moderate concentrations of TCs). To date, cultivation-based techniques have been used to isolate bacteria or fungi with potential degradation ability. Moreover, the biodegradation mechanism of TCs can be unveiled with the development of chemical analysis (e.g. UPLC-Q-TOF mass spectrometer) and molecular biology techniques (e.g. 16S rRNA gene sequencing, multi-omics sequencing, and whole genome sequencing). In this review, we made an overview of the biodegradation of TCs in different systems, refined functional microbial communities and pure isolates relevant to TCs biodegradation, and summarized the biodegradation products, pathways, and degradation genes of TCs. In addition, ecological risks of TCs biodegradation were considered from the perspectives of metabolic products toxicity and resistance genes. Overall, this article aimed to outline the research progress of TCs biodegradation and propose future research prospects.
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Affiliation(s)
- Xiuli Chen
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Yuyin Yang
- South China Institute of Environmental Sciences (SCIES), Ministry of Ecology and Environment (MEE), Guangzhou 510655, China
| | - Yanchu Ke
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Chao Chen
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Shuguang Xie
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
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23
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Fan Z, Yang S, Zhu Q, Zhu X. Effects of different oxygen conditions on pollutants removal and the abundances of tetracycline resistance genes in activated sludge systems. CHEMOSPHERE 2022; 291:132681. [PMID: 34718015 DOI: 10.1016/j.chemosphere.2021.132681] [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: 07/12/2021] [Revised: 09/19/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
The individual and combined effects of tetracycline (TC) and divalent copper (Cu2+) on the performance of activated sludge systems and the abundances of tetracycline resistance genes (TRGs) in activated sludge, under both aerobic and anaerobic conditions, were studied. Activated sludge systems received TC (0.2 mg L-1) and Cu2+ (5 mg L-1) separately or jointly under either aerobic or anaerobic conditions. The addition of TC did not affect the performance of activated sludge systems and the addition of Cu2+ and mixed TC/Cu2+ inhibited biological phosphorus removal. The TC removal efficiencies in systems under aerobic and anaerobic conditions were 98.4%-99.7% and 96.8%-99.9%, respectively, and Cu2+ promoted TC removal in activated sludge systems. The TC degradation product was 4-epitetracycline (ETC) in activated sludge systems under both aerobic and anaerobic conditions. The total relative abundances of TRGs (tetA, tetC, tetE, tetM, tetO, tetW, tetX and tetB(P)) in activated sludge showed opposite development trends under the two oxygen conditions and aerobic condition was beneficial to the attenuation of high-risk TRGs. The results of this study might improve evaluation of the combined effects of antibiotics and heavy metals on wastewater biological treatment systems.
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Affiliation(s)
- Zengzeng Fan
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Sheng Yang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qingyuan Zhu
- Nanjing Foreign Language School, Nanjing, 210095, China
| | - Xuezhu Zhu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
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24
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Evaluation of the Influence of Drug Complex Formation on the Efficiency of Water Conditioning with Reagents for Tetracycline. Pharm Chem J 2022. [DOI: 10.1007/s11094-022-02565-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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25
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Pashaei R, Zahedipour-Sheshglani P, Dzingelevičienė R, Abbasi S, Rees RM. Effects of pharmaceuticals on the nitrogen cycle in water and soil: a review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:105. [PMID: 35044585 PMCID: PMC8766359 DOI: 10.1007/s10661-022-09754-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
The effects of pharmaceuticals on the nitrogen cycle in water and soil have recently become an increasingly important issue for environmental research. However, a few studies have investigated the direct effects of pharmaceuticals on the nitrogen cycle in water and soil. Pharmaceuticals can contribute to inhibition and stimulation of nitrogen cycle processes in the environment. Some pharmaceuticals have no observable effect on the nitrogen cycle in water and soil while others appeared to inhibit or stimulate for it. This review reports on the most recent evidence of effects of pharmaceuticals on the nitrogen cycle processes by examination of the potential impact of pharmaceuticals on nitrogen fixation, nitrification, ammonification, denitrification, and anammox. Research studies have identified pharmaceuticals that can either inhibit or stimulate nitrification, ammonification, denitrification, and anammox. Among these, amoxicillin, chlortetracycline, ciprofloxacin, clarithromycin, enrofloxacin, erythromycin, narasin, norfloxacin, and sulfamethazine had the most significant effects on nitrogen cycle processes. This review also clearly demonstrates that some nitrogen transformation processes such as nitrification show much higher sensitivity to the presence of pharmaceuticals than other nitrogen transformations or flows such as mineralization or ammonia volatilization. We conclude by suggesting that future studies take a more comprehensive approach to report on pharmaceuticals' impact on the nitrogen cycle process.
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Affiliation(s)
- Reza Pashaei
- Marine Research Institute of Klaipeda University, Klaipeda, Lithuania
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Torun, Poland
| | | | | | - Sajjad Abbasi
- Department of Earth Sciences, College of Science, Shiraz University, Shiraz, Iran
- Department of Radiochemistry and Environmental Chemistry, Maria Curie-Skłodowska University, Lublin, Poland
| | - Robert M. Rees
- Scotland’s Rural College (SRUC), West Mains Rd. Edinburgh, Scotland, EH9 3JG UK
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26
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Chen CX, Aris A, Yong EL, Noor ZZ. A review of antibiotic removal from domestic wastewater using the activated sludge process: removal routes, kinetics and operational parameters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:4787-4802. [PMID: 34775565 DOI: 10.1007/s11356-021-17365-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 10/31/2021] [Indexed: 06/13/2023]
Abstract
Many advanced technologies have shown encouraging results in removing antibiotics from domestic wastewater. However, as activated sludge treatment is the most common sewage treatment system employed worldwide, improving its effect on antibiotic removal would be more desirable. Understanding the removal mechanisms, kinetics and factors that affect antibiotic removal in the activated sludge process is important as it would allow us to improve the treatment performance. Although these have been discussed in various literature covering different types of antibiotics and wastewater, a specific review on antibiotics and domestic wastewater is clearly missing. This review paper collates, discusses and analyses the removal of antibiotics from sewage in the activated sludge process along with the removal mechanisms and kinetics. The antibiotics are categorised into six classes: β-lactam, dihydrofolate reductase inhibitor, fluoroquinolone, macrolide, sulfonamides and tetracycline. Furthermore, the factors affecting the system performance with regard to antibiotic removal are examined.
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Affiliation(s)
- Chee Xiang Chen
- Department of Water and Environmental Engineering, School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor, Malaysia
| | - Azmi Aris
- Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Environmental Sustainability, Universiti Teknologi Malaysia, Block C07, Level 2, 81310, Johor, Malaysia.
- Department of Water and Environmental Engineering, School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor, Malaysia.
| | - Ee Ling Yong
- Department of Water and Environmental Engineering, School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor, Malaysia
| | - Zainura Zainon Noor
- Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Environmental Sustainability, Universiti Teknologi Malaysia, Block C07, Level 2, 81310, Johor, Malaysia
- Department of Chemical Engineering, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor, Malaysia
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27
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A review on environmental occurrence, toxicity and microbial degradation of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 300:113694. [PMID: 34537557 DOI: 10.1016/j.jenvman.2021.113694] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/19/2021] [Accepted: 09/04/2021] [Indexed: 02/05/2023]
Abstract
In recent years, Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) have surfaced as a novel class of pollutants due to their incomplete degradation in wastewater treatment plants and their inherent ability to promote physiological predicaments in humans even at low doses. The occurrence of the most common NSAIDs (diclofenac, ibuprofen, naproxen, and ketoprofen) in river water, groundwater, finished water samples, WWTPs, and hospital wastewater effluents along with their toxicity effects were reviewed. The typical concentrations of NSAIDs in natural waters were mostly below 1 μg/L, the rivers receiving untreated wastewater discharge have often showed higher concentrations, highlighting the importance of effective wastewater treatment. The critical analysis of potential, pathways and mechanisms of microbial degradation of NSAIDs were also done. Although studies on algal and fungal strains were limited, several bacterial strains were known to degrade NSAIDs. This microbial ability is attributed to hydroxylation by cytochrome P450 because of the decrease in drug concentrations in fungal cultures of Phanerochaete sordida YK-624 on incubation with 1-aminobenzotriazole. Moreover, processes like decarboxylation, dehydrogenation, dechlorination, subsequent oxidation, demethylation, etc. also constitute the degradation pathways. A wide array of enzymes like dehydrogenase, oxidoreductase, dioxygenase, monooxygenase, decarboxylase, and many more are upregulated during the degradation process, which indicates the possibility of their involvement in microbial degradation. Specific hindrances in upscaling the process along with analytical research needs were also identified, and novel investigative approaches for future monitoring studies are proposed.
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28
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Wang Q, Tu S, Wang W, Chen W, Duan X, Chang L. Optimized Indium modified Ti/PbO2 anode for electrochemical degradation of antibiotic cefalexin in aqueous solutions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Sathishkumar P, Mohan K, Meena RAA, Balasubramanian M, Chitra L, Ganesan AR, Palvannan T, Brar SK, Gu FL. Hazardous impact of diclofenac on mammalian system: Mitigation strategy through green remediation approach. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126135. [PMID: 34157463 DOI: 10.1016/j.jhazmat.2021.126135] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 04/24/2021] [Accepted: 05/12/2021] [Indexed: 05/22/2023]
Abstract
Diclofenac is an anti-inflammatory drug used as an analgesic. It is often detected in various environmental sources around the world and is considered as one of the emerging contaminants (ECs). This paper reviews the distribution of diclofenac at high concentrations in diverse environments and its adverse ecological impact. Recent studies observed strong evidence of the hazardous effect of diclofenac on mammals, including humans. Diclofenac could cause gastrointestinal complications, neurotoxicity, cardiotoxicity, hepatotoxicity, nephrotoxicity, hematotoxicity, genotoxicity, teratogenicity, bone fractures, and skin allergy in mammals even at a low concentration. Collectively, this comprehensive review relates the mode of toxicity, level of exposure, and route of administration as a unique approach for addressing the destructive consequence of diclofenac in mammalian systems. Finally, the mitigation strategy to eradicate the diclofenac toxicity through green remediation is critically discussed. This review will undoubtedly shed light on the toxic effects of pseudo-persistent diclofenac on mammals as well as frame stringent guidelines against its common usage.
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Affiliation(s)
- Palanivel Sathishkumar
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Kannan Mohan
- PG and Research Department of Zoology, Sri Vasavi College, Erode, Tamil Nadu 638 316, India
| | | | - Murugesan Balasubramanian
- Department of Biotechnology, K.S. Rangasamy College of Technology, Tiruchengode 637 215, Tamil Nadu, India
| | - Loganathan Chitra
- Department of Biochemistry, Periyar University, Salem 636 011, Tamil Nadu, India
| | - Abirami Ramu Ganesan
- Group of Fermentation and Distillation, Laimburg Research Center, Vadena (BZ), Italy
| | | | - Satinder Kaur Brar
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario M3J 1P3, Canada
| | - Feng Long Gu
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry, South China Normal University, Guangzhou 510006, PR China.
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30
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Melo A, Costa J, Quintelas C, Ferreira EC, Mesquita DP. Effect of ibuprofen on extracellular polymeric substances (EPS) production and composition, and assessment of microbial structure by quantitative image analysis. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 293:112852. [PMID: 34091137 DOI: 10.1016/j.jenvman.2021.112852] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 04/16/2021] [Accepted: 05/05/2021] [Indexed: 06/12/2023]
Abstract
A Sequencing Batch Reactor (SBR) with activated sludge was operated with synthetic wastewater containing ibuprofen (IBU) to investigate the biomass stress-responses under long-term IBU exposure. There were 3 different phases: phase I as the control without IBU for 56 days, phase II (40 days), and phase III (60 days) containing IBU at 10 and 5 mg L-1 each. The overall performance of the SBR as well as the extracellular polymeric substances (EPS) in terms of polysaccharides, proteins, and humic acid substances were estimated. Morphological parameters of microbial aggregates in the presence of IBU (phase II and phase III) were assessed by quantitative image analysis (QIA). Removal efficiencies of chemical oxygen demand (COD) and ammonium (NH4+) were significantly reduced by IBU. Loosely bound EPS (LB-EPS) decreased during phase II and phase III, and tightly bound EPS (TB-EPS) was slightly higher in phase II than phase I. TB-EPS proteins were greater in phase II, perhaps to protect microbial cells from IBU exposure. These findings provided insight into both activated sludge stress-responses and EPS composition under long-term IBU exposure. Spearman correlation showed that EPS and morphological parameters significantly affected sludge settleability and flocculation. QIA also proved to be a powerful technique in investigating dysfunctions in activated sludge under IBU exposure.
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Affiliation(s)
- António Melo
- CEB - Centre of Biological Engineering, Universidade Do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Joana Costa
- CEB - Centre of Biological Engineering, Universidade Do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Cristina Quintelas
- CEB - Centre of Biological Engineering, Universidade Do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Eugénio C Ferreira
- CEB - Centre of Biological Engineering, Universidade Do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Daniela P Mesquita
- CEB - Centre of Biological Engineering, Universidade Do Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
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31
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Guo Y, Rene ER, Han B, Ma W. Enhanced fluoroglucocorticoid removal from groundwater in a bio-electrochemical system with polyaniline-loaded activated carbon three-dimensional electrodes: Performance and mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126197. [PMID: 34492961 DOI: 10.1016/j.jhazmat.2021.126197] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/14/2020] [Accepted: 05/20/2021] [Indexed: 06/13/2023]
Abstract
This study aimed to investigate the removal performance and mechanisms of dexamethasone (DEX), a representative fluoroglucocorticoid (FGC), from micro-polluted oligotrophic groundwater in a bio-electrochemical system amended with polyaniline-loaded activated carbon (PANI@AC) as three-dimensional particle electrodes (BES-3D). The BES-3D achieved a DEX removal efficiency of 95.7%, which was 39.0% and 14.1% higher than that of a single biological system (SBIO) and two-dimensional bio-electrochemical system (BES-2D), respectively. The preliminary metabolic mechanism of defluorination accounted for 53.5%, 41.1%, and 16.3% in BES-3D, BES-2D, and SBIO, respectively, which was accompanied by demethylation, side-chain fracture, and hydroxyl oxidation for ketone formation and final-ring opening. The main mechanism by which removal was improved in BES-3D was the enrichment of functional microbes and enhancement of the expression of dehalogenation genes. The relative abundance of functional microbes with electron transfer ability and reductive dehalogenating genera, i.e., Pseudomonas, Methylotenera, Desulfuromonas, Sphingomonas, and Microbacterium, in BES-3D was 3.7-6.1 times higher and the copy number of functional genes was 1.9 times higher than those of SBIO, which contributed to the high DEX removal.
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Affiliation(s)
- Yating Guo
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Eldon R Rene
- IHE Delft Institute for Water Education, Department of Water Supply, Sanitary and Environmental Engineering, Westvest 7, 2611AX Delft, the Netherlands
| | - Bingyi Han
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Weifang Ma
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
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32
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Alfonso-Muniozguren P, Serna-Galvis EA, Bussemaker M, Torres-Palma RA, Lee J. A review on pharmaceuticals removal from waters by single and combined biological, membrane filtration and ultrasound systems. ULTRASONICS SONOCHEMISTRY 2021; 76:105656. [PMID: 34274706 PMCID: PMC8319449 DOI: 10.1016/j.ultsonch.2021.105656] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/21/2021] [Accepted: 06/28/2021] [Indexed: 06/01/2023]
Abstract
Contaminants of emerging concern (CEC) such as pharmaceuticals commonly found in urban and industrial wastewater are a potential threat to human health and have negative environmental impact. Most wastewater treatment plants cannot efficiently remove these compounds and therefore, many pharmaceuticals end up in aquatic ecosystems, inducing problems such as toxicity and antibiotic-resistance. This review reports the extent of pharmaceutical removal by individual processes such as bioreactors, advanced oxidation processes and membrane filtration systems, all of which are not 100% efficient and can lead to the direct discharge of pharmaceuticals into water bodies. Also, the importance of understanding biotransformation of pharmaceutical compounds during biological and ultrasound treatment, and its impact on treatment efficacy will be reviewed. Different combinations of the processes above, either as an integrated configuration or in series, will be discussed in terms of their degradation efficiency and scale-up capabilities. The trace quantities of pharmaceutical compounds in wastewater and scale-up issues of ultrasound highlight the importance of membrane filtration as a concentration and volume reduction treatment step for wastewater, which could subsequently be treated by ultrasound.
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Affiliation(s)
| | - Efraím A Serna-Galvis
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia; Grupo de Investigaciones Biomédicas, Facultad de Ciencias de la Salud, Corporación Universitaria Remington (Uniremington), Calle 51 No. 51-27, Medellín, Colombia
| | - Madeleine Bussemaker
- Chemical and Process Engineering, University of Surrey, Guildford GU27XH, United Kingdom
| | - Ricardo A Torres-Palma
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
| | - Judy Lee
- Chemical and Process Engineering, University of Surrey, Guildford GU27XH, United Kingdom.
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33
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Scaria J, Anupama KV, Nidheesh PV. Tetracyclines in the environment: An overview on the occurrence, fate, toxicity, detection, removal methods, and sludge management. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 771:145291. [PMID: 33545482 DOI: 10.1016/j.scitotenv.2021.145291] [Citation(s) in RCA: 138] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/28/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Tetracyclines (TCs) are a group of broad-spectrum antibiotics having vast human, veterinary, and aquaculture applications. The continuous release of TCs residues into the environment and the inadequate removal through the conventional treatment systems result in its prevalent occurrence in soil, surface water, groundwater, and even in drinking water. As aqueous TCs contamination is the tip of the iceberg, and TCs possess good sorption capacity towards soil, sediments, sludge, and manure, it is insufficient to rely on the sorptive removal in the conventional water treatment plants. The severity of the TCs contamination is evident from the emergence of TCs resistance in a wide variety of microorganisms. This paper reviews the recent research on the TCs occurrence in the environmental matrices, fate in natural systems, toxic effects, and the removal methods. The high performance liquid chromatography (HPLC) determination of TCs in environmental samples and the associated technology developments are analyzed. The benefits and limitations of biochemical and physicochemical removal processes are also discussed. This work draws attention to the inevitability of proper TC sludge management. This paper also gives insight into the limitations of TCs related research and the future scope of research in environmental contamination by TCs residues.
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Affiliation(s)
- Jaimy Scaria
- Environmental Impact and Sustainability Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - K V Anupama
- Environmental Impact and Sustainability Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India
| | - P V Nidheesh
- Environmental Impact and Sustainability Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India.
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34
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Sengar A, Vijayanandan A. Comprehensive review on iodinated X-ray contrast media: Complete fate, occurrence, and formation of disinfection byproducts. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 769:144846. [PMID: 33736235 DOI: 10.1016/j.scitotenv.2020.144846] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/19/2020] [Accepted: 12/20/2020] [Indexed: 05/22/2023]
Abstract
Iodinated contrast media (ICM) are drugs which are used in medical examinations for organ imaging purposes. Wastewater treatment plants (WWTPs) have shown incapability to remove ICM, and as a consequence, ICM and their transformation products (TPs) have been detected in environmental waters. ICM show limited biotransformation and low sorption potential. ICM can act as iodine source and can react with commonly used disinfectants such as chlorine in presence of organic matter to yield iodinated disinfection byproducts (IDBPs) which are more cytotoxic and genotoxic than conventionally known disinfection byproducts (DBPs). Even highly efficient advanced treatment systems have failed to completely mineralize ICM, and TPs that are more toxic than parent ICM are produced. This raises issues regarding the efficacy of existing treatment technologies and serious concern over disinfection of ICM containing waters. Realizing this, the current review aims to capture the attention of scientific community on areas of less focus. The review features in depth knowledge regarding complete environmental fate of ICM along with their existing treatment options.
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Affiliation(s)
- Ashish Sengar
- Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Arya Vijayanandan
- Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India.
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35
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Gao J, Chen Y, Li J, Yu Y, Wang J, Pang T, Qi Y, Shang J, Liao Q. Electrolysis-sulfate-reducing up-flow sludge bed-biological contact oxidation reactor for Norfloxacin removal from wastewater with high sulfate content. ENVIRONMENTAL RESEARCH 2021; 196:110455. [PMID: 33212131 DOI: 10.1016/j.envres.2020.110455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 10/13/2020] [Accepted: 11/08/2020] [Indexed: 06/11/2023]
Abstract
This study investigated the treatment of 100-mg/L Norfloxacin (NOR) wastewater containing high concentrations of sulfate through a combination of electrolysis, sulfate-reducing up-flow sludge bed (SRUSB), and biological contact oxidation reactor (BCOR) treatments. Results revealed that after 62 h, the reaction system had processed over 97% of the NOR. Additionally, electrolysis with sodium sulfate as the electrolyte transformed 87.8% of the NOR but only 33.5% of the total organic carbon (TOC). In the SRUSB, the TOC and SO42- contents were simultaneously reduced by 87.4% and 95.6%, respectively, providing a stable environment to the BCOR. In the BCOR, 36.3% and 85.9% of the NOR and TOC were degraded. High-performance liquid chromatography-tandem mass spectrometry analysis identified three possible degradation pathways under the attack of -OH during electrolysis, including defluorination, piperazinyl ring transformation, and quinolone ring transformation. Furthermore, the Illumina HiSeq sequencing results demonstrated that the sulfate-reducing bacteria (represented by Desulfobacter and Desulfobulbus) in the SRUSB and the sulfate-oxidizing bacteria (mainly consisting of Gammaproteobacteria and Alphaproteobacteria) in the BCOR played important roles in carbon chain oxidation and benzene ring opening and thoroughly degraded the electrolysis products. Thus, this method effectively overcomes the incomplete degradation and low removal efficiency issues associated with single electrolysis or biological methods in traditional processes.
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Affiliation(s)
- Jinlong Gao
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Yifan Chen
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Jiwei Li
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Yalin Yu
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Jun Wang
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Tiantian Pang
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Yuting Qi
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Jingge Shang
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China.
| | - Qianjiahua Liao
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China.
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Aissaoui S, Fagnani E, Pérez S, Ouled-Haddar H, Sifour M. Removal of diclofenac by a local bacterial consortium: UHPLC-ESI-MS/MS analysis of metabolites and ecotoxicity assessment. Braz J Microbiol 2021; 52:749-759. [PMID: 33765286 DOI: 10.1007/s42770-021-00464-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 02/23/2021] [Indexed: 11/27/2022] Open
Abstract
Diclofenac (DCF) belongs to the class of nonsteroidal anti-inflammatory drugs, which is one of the most consumed by population and detected in raw sewage. Several studies have reported variable removal rates by biodegradation of diclofenac in wastewater treatment plants (WWTPs). This study deals with the evaluation of the biodegradation of DCF by a bacterial consortium (obtained from pure cultures of Enterobacter hormaechei D15 and Enterobacter cloacea D16), which were isolated from household compost and Algerian WWTP, respectively, as sole carbon source and by co-metabolism, using glucose as carbon source. A 98% removal rate of DCF was observed when it is used as the sole carbon source, whilst only 44% of DCF was removed in co-metabolic conditions. Two metabolites were identified using ultra-high-performance liquid chromatography coupled to electrospray injection tandem mass spectrometry analysis (UHPLC-ESI-MS/MS); one of them was identified as 4'-hydroxy-DCF, and the second metabolite was suspected to be a nitro derivative of DCF, according to comparison with the literature. Biodegradation of DCF by this bacterial consortium generates relatively safe final by-products.
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Affiliation(s)
- Salima Aissaoui
- Laboratory of Molecular Toxicology, Faculty of Nature and Life Sciences, University of Mohammed Seddik Benyahia-Jijel, Jijel, Algeria.
| | - Enelton Fagnani
- ENFOCHEM, Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034, Barcelona, Spain
- School of Technology, University of Campinas (UNICAMP), Limeira, SP, Brazil
| | - Sandra Pérez
- School of Technology, University of Campinas (UNICAMP), Limeira, SP, Brazil
| | - Houria Ouled-Haddar
- Laboratory of Molecular Toxicology, Faculty of Nature and Life Sciences, University of Mohammed Seddik Benyahia-Jijel, Jijel, Algeria
| | - Mohamed Sifour
- Laboratory of Molecular Toxicology, Faculty of Nature and Life Sciences, University of Mohammed Seddik Benyahia-Jijel, Jijel, Algeria
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Martínez-Alcalá I, Guillén-Navarro JM, Lahora A. Occurrence and fate of pharmaceuticals in a wastewater treatment plant from southeast of Spain and risk assessment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111565. [PMID: 33160743 DOI: 10.1016/j.jenvman.2020.111565] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 09/15/2020] [Accepted: 10/21/2020] [Indexed: 05/08/2023]
Abstract
Pharmaceutical and personal care products (PPCPs) can be incorporated into ecosystems and pose potential environmental and health hazards. These pollutants are becoming omnipresent in the environment because they are introduced by several sources, being particularly important the contribution of human-derived pharmaceuticals. The presence of PPCPs in waters has received increasing attention in recent years, resulting in great concern regarding their occurrence, transformation, fate and environmental risk. For that reason, the pharmaceuticals carbamazepine (CBZ), diclofenac (DIC), ibuprofen (IBU), ketoprofen (KET) and naproxen (NPX) were measured in the waters and sludge of several parts of a double step activated sludge wastewater treatment plant (WWTP) from Murcia (Spain). With these results, the biological degradation constant, the sorption coefficient and the pharmaceutical removal were calculated. Possible risks to humans and ecosystems were also evaluated. These showed good degradation of IBU and NPX (74.4 and 84.9%, respectively), while CBZ didn't display any degradation. DIC was the compound most likely to be sorbed into the sludge (3.09 L kg-1). The PPCPs removal in this double stage WWTP was compared to a previous data obtained in a WWTP of the same region with an activated sludge (single biological batch reactor). The results showed a decrease in the removal of the double stage plant, probably due to the lower hydraulic retention time employed. The study of the human and ecological risk quotients indicates a low risk of the selected pharmaceuticals (RQ < 0.1).
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Affiliation(s)
- Isabel Martínez-Alcalá
- Department of Civil Engineering, Catholic University of Murcia (UCAM), Av. de los Jerónimos, 135, 30107, Guadalupe, Murcia, Spain.
| | - José Manuel Guillén-Navarro
- Department of Civil Engineering, Catholic University of Murcia (UCAM), Av. de los Jerónimos, 135, 30107, Guadalupe, Murcia, Spain
| | - Agustin Lahora
- Regional Entity for Sanitation and Wastewater Treatment in the Region of Murcia (ESAMUR), C. Santiago Navarro, 4, 30100, Espinardo, Murcia, Spain
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38
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Wu G, Geng J, Xu K, Ren H. Removal of pharmaceuticals by ammonia oxidizers during nitrification. Appl Microbiol Biotechnol 2021; 105:909-921. [PMID: 33415368 DOI: 10.1007/s00253-020-11032-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 11/16/2020] [Accepted: 11/23/2020] [Indexed: 01/25/2023]
Abstract
The adverse effect of pharmaceuticals on ecosystem and human health raises great interest for the removal of pharmaceuticals in wastewater treatment plants (WWTPs). Enhanced removal of pharmaceuticals by ammonia oxidizers (AOs) has been observed during nitrification. This review provides a comprehensive summary on the removal of pharmaceuticals by AOs-ammonia oxidizing bacteria (AOB), ammonia oxidizing archaea (AOA), and complete ammonia oxidizer (comammox) during nitrification in pure ammonia oxidizing culture and mixed microbes systems. The superior removal of pharmaceuticals by AOs in conditions with nitrifying activity compared with the conditions without nitrifying activity was proposed. The contribution of AOs on pharmaceuticals removal in pure and mixed microbe systems was discussed and activated sludge modeling was suggested as the proper measure on assessing the contribution of AOs on the removal of pharmaceuticals in mixed microbe culture. Three transformation processes and the involved reaction types of pharmaceuticals transformation during nitrification were reviewed. The present paper provides a systematical summary on pharmaceuticals removal by different AOs across pure and mixed microbes culture during nitrification, which opens up the opportunity to optimize the wastewater biological treatment systems for enhanced removal of pharmaceuticals. KEY POINTS: • The superior removal of pharmaceuticals by ammonia oxidizers (AOs) was summarized. • The removal contribution of pharmaceuticals attributed by AOs was elucidated. • The transformation processes and reaction types of pharmaceuticals were discussed.
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Affiliation(s)
- Gang Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Jinju Geng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, People's Republic of China.
| | - Ke Xu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Hongqiang Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, People's Republic of China
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Khadir A, Negarestani M, Motamedi M. Optimization of an electrocoagulation unit for purification of ibuprofen from drinking water: Effect of conditions and linear/non-linear isotherm study. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2020.1770795] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ali Khadir
- Young Researcher and Elite Club, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran
| | - Mehrdad Negarestani
- Department of Civil and Environmental Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Mahsa Motamedi
- Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
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Ferrer-Polonio E, Fernández-Navarro J, Iborra-Clar MI, Alcaina-Miranda MI, Mendoza-Roca JA. Removal of pharmaceutical compounds commonly-found in wastewater through a hybrid biological and adsorption process. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 263:110368. [PMID: 32883474 DOI: 10.1016/j.jenvman.2020.110368] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 02/13/2020] [Accepted: 02/27/2020] [Indexed: 06/11/2023]
Abstract
Nowadays, alternative options to conventional wastewater treatment should be studied due to rising concerns emerged by the presence of pharmaceuticals compounds (PhCs) in the aquatic environment. In this work, a combined system including biological treatment by activated sludge plus adsorption with activated carbon is proposed to remove three selected drugs (acetaminophen (ACT), caffeine (CAF) and ibuprofen (IBU)) in a concentration of 2 mg L-1 of each one. For it three sequencing batch reactors (SBR) were operated. SBR-B treated a synthetic wastewater (SWW) without target drugs and SBR-PhC and SBR-PhC + AC operated with SWW doped with the three drugs, adding into SBR-PhC + AC 1.5 g L-1 of a mesoporous granular activated carbon. Results showed that the hybrid system SBR-activated carbon produced an effluent free of PhCs, which in addition had higher quality than that achieved in a conventional activated sludge treatment in terms of lower COD, turbidity and SMP concentrations. On the other hand, five possible routes of removal for target drugs during the biological treatment were studied. Hydrolysis, oxidation and volatilization pathways were negligible after 6 h of reaction time. Adsorption route only was significant for ACT, which was adsorbed completely after 5 h of reaction, while only 1.9% of CAF and 5.6% of IBU were adsorbed. IBU was the least biodegradable compound.
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Affiliation(s)
- Eva Ferrer-Polonio
- Department of Chemical and Nuclear Engineering, Universitat Politècnica de València, C/Camino de Vera, s/n, 46022, Valencia, Spain.
| | - Julián Fernández-Navarro
- Instituto Ingeniería del Agua y Medio Ambiente, Universitat Politècnica de València, C/Camino de Vera, s/n, 46022, Valencia, Spain
| | - María-Isabel Iborra-Clar
- Department of Chemical and Nuclear Engineering, Universitat Politècnica de València, C/Camino de Vera, s/n, 46022, Valencia, Spain
| | - María-Isabel Alcaina-Miranda
- Department of Chemical and Nuclear Engineering, Universitat Politècnica de València, C/Camino de Vera, s/n, 46022, Valencia, Spain
| | - José Antonio Mendoza-Roca
- Department of Chemical and Nuclear Engineering, Universitat Politècnica de València, C/Camino de Vera, s/n, 46022, Valencia, Spain
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41
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Xiang Y, Rene ER, Lun X, Ma W. Enhanced reductive defluorination and inhibited infiltration of fluoroglucocorticoids in a river receiving reclaimed water amended by nano zero-valent iron-modified biochar: Performance and mechanisms. BIORESOURCE TECHNOLOGY 2020; 306:123127. [PMID: 32172094 DOI: 10.1016/j.biortech.2020.123127] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/29/2020] [Accepted: 03/01/2020] [Indexed: 06/10/2023]
Abstract
The main aim of this study was to investigate the effect of a nano zero-valent iron-modified biochar-amended composite riverbed (nZVI@BC-R) on inhibited infiltration and enhanced biodegradation of fluoroglucocorticoids (FGCs) in a river receiving reclaimed water. The results demonstrated that the removal efficiency of triamcinolone acetonide (TA), a representative FGC, increased from 38.40% and 77.91% to 91.60% in the nZVI@BC-R compared with that of a natural soil riverbed (S-R) and biochar-amended soil riverbed (BC-R). The main removal mechanismwas attributedto adsorption and biodegradation, of which the contribution rates were 32.2% and 59.4% in nZVI@BC-R, 18.9% and 19.5% in S-R, and 24.4% and 53.5% in BC-R, respectively. The removal process could be described by a two-compartment, first-order dynamic model with decay rate constants for adsorption and biodegradation of 4.02700, 22.44400, and 29.07300 d-1 and 0.00286, 0.01562, and 0.03484 d-1 in the S-R, BC-R and nZVI@BC-R, respectively. The mechanism of defluorination accounted for 42.2% of biodegradation in the nZVI@BC-R, which was accompanied by side-chain rupture, oxidation, and ringopening. Functional microbes with iron oxidizing ability and reductive dehalogenating genera, namely Pseudoxanthomonas, Pedobacter, and Bosea, contributed to the high removal rate of TA, particularly in the nZVI@BC-R. Overall, the nZVI@BC-R provided an effective method to inhibit glucocorticoids infiltration into groundwater.
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Affiliation(s)
- Yayun Xiang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Eldon R Rene
- IHE-Delft, Institute for Water Education, Department of Environmental Engineering and Water Technology, Westvest 7, 2611AX Delft, The Netherlands
| | - Xiaoxiu Lun
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Weifang Ma
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
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Langbehn RK, Michels C, Soares HM. Tetracyclines lead to ammonium accumulation during nitrification process. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:1021-1031. [PMID: 32406796 DOI: 10.1080/10934529.2020.1765642] [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: 02/03/2020] [Revised: 04/26/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
The effect of tetracyclines used for swine food-production (tetracycline and oxytetracycline) on enriched nitrifying bacteria cultures over time was investigated in this study. Short-term exposure assays were performed in different concentrations of each antibiotic, using ammonia oxidizing bacteria (AOB) culture and nitrifying bacteria. The results pointed out a higher inhibitory effect of tetracycline on both bacterial communities. The AOB was more sensitive to antibiotic exposure when compared to the nitrifying culture. Although high antibiotic concentrations were applied, the half maximal inhibitory concentration (IC50) was achieved only for the AOB culture exposed to tetracycline at a concentration of 273 mg L-1. Nonetheless, the long-term exposure assay demonstrated a reduction of the tetracycline inhibition effect against AOB. The exposure to 100 mg L-1 of tetracycline (TC) did not show relevant influence over ammonium conversion efficiency; however, at 128 mg L-1 of TC, the efficiency decreased from 94% to 72%. Further investigation revealed that TC reduced the final effluent quality due to the development of a resistance mechanism by AOB culture against this antibiotic. This mechanism involves increasing the excretion of extracellular polymeric substances (EPS) and soluble microbial products (SMP), which probably increases BOD, and reduces ammonia consumption by the bacterial culture.
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Affiliation(s)
- Rayane Kunert Langbehn
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Camila Michels
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Hugo Moreira Soares
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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43
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Carneiro RB, Gonzalez-Gil L, Londoño YA, Zaiat M, Carballa M, Lema JM. Acidogenesis is a key step in the anaerobic biotransformation of organic micropollutants. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:121888. [PMID: 31879099 DOI: 10.1016/j.jhazmat.2019.121888] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/25/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
Understanding the role of the different anaerobic digestion stages on the removal of organic micropollutants (OMPs) is essential to mitigate their release from wastewater treatment plants. This study assessed the fate of 21 OMPs during hydrolysis and acidogenesis to elucidate the contribution of these stages to the overall anaerobic removal. Moreover, the removal mechanisms and factors influencing them were investigated. To this purpose, a fermentation reactor was operated and fed with two different substrates: starch (to jointly evaluate hydrolysis and acidogenesis) and glucose (to isolate acidogenesis). Results indicate that sulfamethoxazole was highly biotransformed (>80 %), while galaxolide, celestolide, tonalide, erythromycin, roxithromycin, trimethoprim, octylphenol and nonylphenol achieved a 50-80 % biotransformation. Since no significant differences in the biotransformation efficiencies were found between starch and glucose fermentation, it is stated that the enzymatic activities involved in starch hydrolysis do not significantly contribute to the cometabolic biotransformation of OMPs, while acidogenesis appears as the major player. Moreover, a higher biotransformation (≥15 percentage points and p ≤ 0.05) was found for galaxolide, celestolide, tonalide, erythromycin and roxithromycin during acidogenesis in comparison with the efficiencies reported for the acetogenic/methanogenic step. The biotransformation of some OMPs was explained considering their chemical structure and the enzymatic activities.
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Affiliation(s)
- Rodrigo B Carneiro
- Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, Rúa Lope Gómez de Marzoa, E-15782 Santiago de Compostela, Spain; Biological Processes Laboratory (LPB), Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, 1100, João Dagnone Ave., Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
| | - Lorena Gonzalez-Gil
- Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, Rúa Lope Gómez de Marzoa, E-15782 Santiago de Compostela, Spain.
| | - Yudy Andrea Londoño
- GDCON Research Group, Faculty of Engineering, University Research Headquarters (SIU), University of Antioquia, Street 70 # 52-21, Medellín, Colombia.
| | - Marcelo Zaiat
- Biological Processes Laboratory (LPB), Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, 1100, João Dagnone Ave., Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
| | - Marta Carballa
- Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, Rúa Lope Gómez de Marzoa, E-15782 Santiago de Compostela, Spain.
| | - Juan M Lema
- Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, Rúa Lope Gómez de Marzoa, E-15782 Santiago de Compostela, Spain.
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44
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Jia Y, Yin L, Khanal SK, Zhang H, Oberoi AS, Lu H. Biotransformation of ibuprofen in biological sludge systems: Investigation of performance and mechanisms. WATER RESEARCH 2020; 170:115303. [PMID: 31751892 DOI: 10.1016/j.watres.2019.115303] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/09/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
Ibuprofen (IBU), a common non-steroidal anti-inflammatory drug (NSAID), is widely used by humans for controlling fever and pain, and is frequently detected in the influent of wastewater treatment plants and different aquatic environments. In this study, the biotransformation of IBU in activated sludge (AS), anaerobic methanogenic sludge (AnMS) and sulfate-reducing bacteria (SRB)-enriched sludge systems was investigated at three different concentrations of 100, 500 and 1000 μg/L via a series of batch and continuous studies. IBU at concentration of 100 μg/L was effectively biodegraded by AS whereas AnMS and SRB-enriched sludge were less effective in IBU biodegradation at all concentrations tested. However, at higher IBU concentrations of 500 and 1000 μg/L, AS showed poor IBU biodegradation and chemical oxygen demand (COD) removal due to inhibition of aerobic heterotrophic bacteria (i.e., Candidatus Competibacter) by IBU and/or IBU biotransformation products. The microbial analyses showed that IBU addition shifted the microbial community structure in AS, AnMS and SRB-enriched sludge systems, however, the removals of COD, nitrogen and sulfur in both anaerobic sludge systems were not affected significantly (p > 0.05). The findings of this study provided a new insight into biotransformation of IBU in three important biological sludge systems.
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Affiliation(s)
- Yanyan Jia
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Shenzhen Research Institute of Sun Yat-sen University, Shenzhen, PR China
| | - Linwan Yin
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Shenzhen Research Institute of Sun Yat-sen University, Shenzhen, PR China
| | - Samir Kumar Khanal
- Department of Molecular Biosciences and Bioengineering, University of Hawai'i at Mānoa, USA
| | - Huiqun Zhang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Shenzhen Research Institute of Sun Yat-sen University, Shenzhen, PR China
| | - Akashdeep Singh Oberoi
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Shenzhen Research Institute of Sun Yat-sen University, Shenzhen, PR China
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Shenzhen Research Institute of Sun Yat-sen University, Shenzhen, PR China.
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45
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Yu C, Bi E. Adsorption site-dependent transport of diclofenac in water saturated minerals and reference soils. CHEMOSPHERE 2019; 236:124256. [PMID: 31319305 DOI: 10.1016/j.chemosphere.2019.06.226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 06/10/2023]
Abstract
Use of reclaimed water for irrigation is a main way for pharmaceutical compounds such as diclofenac getting into the soil environment. However, the role of minerals, especially iron oxides, in the diclofenac adsorption to soils with low soil organic matter (SOM) is still in the lack of evaluation. In this study, adsorption of diclofenac onto six minerals (five nature minerals-hematite, goethite, magnetite, kaolinite and aluminium oxide and one engineered mineral-activated aluminia) and five reference soils was investigated by column chromatography. Adsorption of diclofenac onto minerals and soils was totally reversible and interactions such as H-bonding were the primary mechanisms. Adsorption affinity of iron oxides was much higher than that of nature silicon and aluminum oxides. Diclofenac tended to be adsorbed by mineral surface -OH groups with high thermodynamic stability, which were dehydroxylated at high temperature. Compared with the SOM-dominated sorption of naphthalene, adsorption of diclofenac onto soils was controlled by bonding with surface -OH groups of iron oxides. Adsorption coefficients of diclofenac onto soils can be well predicted by contents of extracted Fe by diethylenetriamine pentaacetic acid (DTPA) instead of total iron oxides contents, suggesting that the bonding was adsorption site-dependent. These findings highlighted the importance of iron oxides in the adsorption of diclofenac (an anionic pharmaceutical compound) in soils with relatively low SOM (e.g., 1.03-3.45%). It also indicated that contents of effective surface -OH groups and DTPA-Fe were the promising parameters to develop the predictive models for diclofenac adsorption onto minerals and soils, respectively.
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Affiliation(s)
- Chenglong Yu
- School of Water Resources and Environment, and MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), 29 Xueyuan Road, Beijing, 100083, PR China.
| | - Erping Bi
- School of Water Resources and Environment, and MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), 29 Xueyuan Road, Beijing, 100083, PR China.
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46
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Oberoi AS, Jia Y, Zhang H, Khanal SK, Lu H. Insights into the Fate and Removal of Antibiotics in Engineered Biological Treatment Systems: A Critical Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:7234-7264. [PMID: 31244081 DOI: 10.1021/acs.est.9b01131] [Citation(s) in RCA: 362] [Impact Index Per Article: 72.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Antibiotics, the most frequently prescribed drugs of modern medicine, are extensively used for both human and veterinary applications. Antibiotics from different wastewater sources (e.g., municipal, hospitals, animal production, and pharmaceutical industries) ultimately are discharged into wastewater treatment plants. Sorption and biodegradation are the two major removal pathways of antibiotics during biological wastewater treatment processes. This review provides the fundamental insights into sorption mechanisms and biodegradation pathways of different classes of antibiotics with diverse physical-chemical attributes. Important factors affecting sorption and biodegradation behavior of antibiotics are also highlighted. Furthermore, this review also sheds light on the critical role of extracellular polymeric substances on antibiotics adsorption and their removal in engineered biological wastewater treatment systems. Despite major advancements, engineered biological wastewater treatment systems are only moderately effective (48-77%) in the removal of antibiotics. In this review, we systematically summarize the behavior and removal of different antibiotics in various biological treatment systems with discussion on their removal efficiency, removal mechanisms, critical bioreactor operating conditions affecting antibiotics removal, and recent innovative advancements. Besides, relevant background information including antibiotics classification, physical-chemical properties, and their occurrence in the environment from different sources is also briefly covered. This review aims to advance our understanding of the fate of various classes of antibiotics in engineered biological wastewater treatment systems and outlines future research directions.
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Affiliation(s)
| | - Yanyan Jia
- Department of Civil and Environmental Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Hong Kong
| | | | - Samir Kumar Khanal
- Department of Molecular Biosciences and Bioengineering , University of Hawaii at Ma̅noa , 1955 East-West Road , Honolulu , Hawaii 96822 , United States
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47
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Wang B, Ni BJ, Yuan Z, Guo J. Cometabolic biodegradation of cephalexin by enriched nitrifying sludge: Process characteristics, gene expression and product biotoxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 672:275-282. [PMID: 30959294 DOI: 10.1016/j.scitotenv.2019.03.473] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/14/2019] [Accepted: 03/30/2019] [Indexed: 06/09/2023]
Abstract
The nitrifying systems have been reported to be able to biodegrade micropollutants, yet it is still unclear about the cometabolism of ammonia-oxidizing bacteria (AOB) towards micropollutants, in particular their enzyme and transcriptional responses under exposure of micropollutants. This study investigated cometabolic biodegradation of a selected antibiotic, cephalexin (CFX), by an enriched nitrifying culture through a series of batch experiments, together with the assessments of enzymatic activity, key gene expression, and biotoxicity of the degradation products. More than 99% CFX with an initial concentration of 50 μg/L could be removed with the presence of ammonium, while <44% of CFX removal was observed in the absence of ammonium, suggesting the cometabolic degradation of CFX by ammonia-oxidizing bacteria (AOB). After the addition of 50 μg/L CFX, the ammonia oxidizing rate (AOR) decreased from 36.6 to 11.0 mg N/(L·h·g VSS), followed by a slight recovery when CFX concentration decreased to below 8 μg/L. Ammonia monooxygenase (AMO) activity showed a similar trend with that of AOR. The quantitative reverse transcription PCR assay indicated that the expression level of amoA gene was significantly upregulated (up to 3-fold, p < 0.05) due to the addition of CFX, while decreased to the normal level once CFX was degraded, suggesting a mechanism of AOB to neutralize the toxicity of CFX by metabolizing ammonia more effectively. Meanwhile, the biotoxicity test showed the degradation products of CFX did not exhibit any antibacterial impacts in terms of cell viability, compared to the parent compounds. Our finding shed a light on AMO-mediated cometabolic biodegradation of antibiotics in nitrifying cultures.
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Affiliation(s)
- Bingzheng Wang
- Advanced Water Management Centre, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Bing-Jie Ni
- School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Zhiguo Yuan
- Advanced Water Management Centre, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Jianhua Guo
- Advanced Water Management Centre, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia.
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Xue H, Gao S, Zheng N, Li M, Wen X, Wei X. Degradation of norfloxacin in aqueous solution with UV/peroxydisulfate. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 79:2387-2394. [PMID: 31411593 DOI: 10.2166/wst.2019.240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The frequent detection of antibiotics in water bodies gives rise to concerns about their removal technology. In this study, the degradation kinetics and mechanisms of norfloxacin (NOR), a typical fluoroquinolone pharmaceutical, by the UV/peroxydisulfate (PDS) was investigated. NOR could be degraded effectively using this process, and the degradation rate increased with the increasing dosage of PDS but decreased with the increasing concentration of NOR. In real water, the degradation of NOR was slower than that in ultrapure water, which indicated that laboratory results cannot be directly used to predict the natural fate of antibiotics. Further experiments suggested that the degradation of NOR was the most fast under neutral condition, the existence of HA or FA inhibited the degradation of NOR, and the presence of inorganic ions (NO3 -, Cl-, CO3 2- and HCO3 -) had no significant effect on degradation of NOR. Total organic carbon (TOC) removal rate (40%) indicated NOR was not completely mineralized, and six transformation products were identified, and possible degradation pathways of NOR had been proposed. It can be prospected that UV/PDS technology could be used for advanced treatment of wastewater containing fluoroquinolones.
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Affiliation(s)
- Honghai Xue
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China E-mail: ; Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | - Siyu Gao
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | - Na Zheng
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China E-mail:
| | - Ming Li
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | - Xue Wen
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | - Xindong Wei
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
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