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Lobos AE, Brandt AM, Gallard-Góngora JF, Korde R, Brodrick E, Harwood VJ. Persistence of sewage-associated genetic markers in advanced and conventional treated recycled water: implications for microbial source tracking in surface waters. mBio 2024; 15:e0065524. [PMID: 38864636 PMCID: PMC11253620 DOI: 10.1128/mbio.00655-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 05/14/2024] [Indexed: 06/13/2024] Open
Abstract
Sewage contamination of environmental waters is increasingly assessed by measuring DNA from sewage-associated microorganisms in microbial source tracking (MST) approaches. However, DNA can persist through wastewater treatment and reach surface waters when treated sewage/recycled water is discharged, which may falsely indicate pollution from untreated sewage. Recycled water discharged from an advanced wastewater treatment (AWT) facility into a Florida stream elevated the sewage-associated HF183 marker 1,000-fold, with a minimal increase in cultured Escherichia coli. The persistence of sewage-associated microorganisms was compared by qPCR in untreated sewage and recycled water from conventional wastewater treatment (CWT) and AWT facilities. E. coli (EC23S857) and sewage-associated markers HF183, H8, and viral crAssphage CPQ_056 were always detected in untreated sewage (6.5-8.7 log10 GC/100 mL). Multivariate analysis found a significantly greater reduction of microbial variables via AWT vs CWT. Bacterial markers decayed ~4-5 log10 through CWT, but CPQ_056 was ~100-fold more persistent. In AWT facilities, the log10 reduction of all variables was ~5. In recycled water, bacterial marker concentrations were significantly correlated (P ≤ 0.0136; tau ≥ 0.44); however, CPQ_056 was not correlated with any marker, suggesting varying drivers of decay. Concentrations of cultured E. coli carrying the H8 marker (EcH8) in untreated sewage were 5.24-6.02 log10 CFU/100 mL, while no E. coli was isolated from recycled water. HF183 and culturable EcH8 were also correlated in contaminated surface waters (odds ratio β1 = 1.701). Culturable EcH8 has a strong potential to differentiate positive MST marker signals arising from treated (e.g., recycled water) and untreated sewage discharged into environmental waters. IMPORTANCE Genes in sewage-associated microorganisms are widely accepted indicators of sewage pollution in environmental waters. However, DNA persists through wastewater treatment and can reach surface waters when recycled water is discharged, potentially causing false-positive indications of sewage contamination. Previous studies have found that bacterial and viral sewage-associated genes persist through wastewater treatment; however, these studies did not compare different facilities or identify a solution to distinguish sewage from recycled water. In this study, we demonstrated the persistence of bacterial marker genes and the greater persistence of a viral marker gene (CPQ_056 of crAssphage) through varying wastewater treatment facilities. We also aim to provide a tool to confirm sewage contamination in surface waters with recycled water inputs. This work showed that the level of wastewater treatment affects the removal of microorganisms, particularly viruses, and expands our ability to identify sewage in surface waters.
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Affiliation(s)
- Aldo E. Lobos
- Department of Integrative Biology, University of South Florida, Tampa, Florida, USA
| | - Amanda M. Brandt
- Department of Integrative Biology, University of South Florida, Tampa, Florida, USA
| | - Javier F. Gallard-Góngora
- Department of Earth, Marine, and Environmental Sciences, Institute of Marine Science, University of North Carolina at Chapel Hill, Morehead City, North Carolina, USA
| | - Ruchi Korde
- Department of Integrative Biology, University of South Florida, Tampa, Florida, USA
| | - Eleanor Brodrick
- Department of Integrative Biology, University of South Florida, Tampa, Florida, USA
| | - Valerie J. Harwood
- Department of Integrative Biology, University of South Florida, Tampa, Florida, USA
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Sadare OO, Oke D, Olawuni OA, Olayiwola IA, Moothi K. Modelling and optimization of membrane process for removal of biologics (pathogens) from water and wastewater: Current perspectives and challenges. Heliyon 2024; 10:e29864. [PMID: 38698993 PMCID: PMC11064141 DOI: 10.1016/j.heliyon.2024.e29864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/30/2024] [Accepted: 04/16/2024] [Indexed: 05/05/2024] Open
Abstract
As one of the 17 sustainable development goals, the United Nations (UN) has prioritized "clean water and sanitation" (Goal 6) to reduce the discharge of emerging pollutants and disease-causing agents into the environment. Contamination of water by pathogenic microorganisms and their existence in treated water is a global public health concern. Under natural conditions, water is frequently prone to contamination by invasive microorganisms, such as bacteria, viruses, and protozoa. This circumstance has therefore highlighted the critical need for research techniques to prevent, treat, and get rid of pathogens in wastewater. Membrane systems have emerged as one of the effective ways of removing contaminants from water and wastewater However, few research studies have examined the synergistic or conflicting effects of operating conditions on newly developing contaminants found in wastewater. Therefore, the efficient, dependable, and expeditious examination of the pathogens in the intricate wastewater matrix remains a significant obstacle. As far as it can be ascertained, much attention has not recently been given to optimizing membrane processes to develop optimal operation design as related to pathogen removal from water and wastewater. Therefore, this state-of-the-art review aims to discuss the current trends in removing pathogens from wastewater by membrane techniques. In addition, conventional techniques of treating pathogenic-containing water and wastewater and their shortcomings were briefly discussed. Furthermore, derived mathematical models suitable for modelling, simulation, and control of membrane technologies for pathogens removal are highlighted. In conclusion, the challenges facing membrane technologies for removing pathogens were extensively discussed, and future outlooks/perspectives on optimizing and modelling membrane processes are recommended.
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Affiliation(s)
- Olawumi O. Sadare
- School of Chemical and Minerals Engineering, Faculty of Engineering, North-West University, Potchefstroom, 2520, South Africa
| | - Doris Oke
- Northwestern-Argonne Institute of Science and Engineering, Northwestern University, Evanston, IL, USA
| | - Oluwagbenga A. Olawuni
- Department of Chemical Engineering, Faculty of Engineering and the Built Environment, Doornfontein Campus, University of Johannesburg, P.O. Box 17011, Johannesburg, 2028, South Africa
| | - Idris A. Olayiwola
- UNESCO-UNISA Africa Chair in Nanoscience and Nanotechnology College of Graduates Studies, University of South Africa, Pretoria 392, South Africa
| | - Kapil Moothi
- School of Chemical and Minerals Engineering, Faculty of Engineering, North-West University, Potchefstroom, 2520, South Africa
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Yesilay G, Dos Santos OAL, A BR, Hazeem LJ, Backx BP, J JV, Kamel AH, Bououdina M. Impact of pathogenic bacterial communities present in wastewater on aquatic organisms: Application of nanomaterials for the removal of these pathogens. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 261:106620. [PMID: 37399782 DOI: 10.1016/j.aquatox.2023.106620] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 06/06/2023] [Accepted: 06/09/2023] [Indexed: 07/05/2023]
Abstract
Contaminated wastewater (WW) can cause severe hazards to numerous delicate ecosystems and associated life forms. In addition, human health is negatively impacted by the presence of microorganisms in water. Multiple pathogenic microorganisms in contaminated water, including bacteria, fungi, yeast, and viruses, are vectors for several contagious diseases. To avoid the negative impact of these pathogens, WW must be free from pathogens before being released into stream water or used for other reasons. In this review article, we have focused on pathogenic bacteria in WW and summarized the impact of the different types of pathogenic bacteria on marine organisms. Moreover, we presented a variety of physical and chemical techniques that have been developed to provide a pathogen-free aquatic environment. Among the techniques, membrane-based techniques for trapping hazardous biological contaminants are gaining popularity around the world. Besides, novel and recent advancements in nanotechnological science and engineering suggest that many waterborne pathogens could be inactivated using nano catalysts, bioactive nanoparticles, nanostructured catalytic membranes, nanosized photocatalytic structures, and electrospun nanofibers and processes have been thoroughly examined.
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Affiliation(s)
- Gamze Yesilay
- Molecular Biology and Genetics Department, Hamidiye Institute of Health Sciences, University of Health Sciences-Türkiye, Istanbul 34668, Türkiye; Experimental Medicine Application & Research Center, University of Health Sciences, Validebag Research Park, Uskudar, Istanbul 34662, Türkiye
| | | | - Bevin Roger A
- Department of Chemistry, Catalysis and Nanomaterials Research Laboratory, Loyola College, Chennai 600 034, India
| | - Layla J Hazeem
- Department of Biology, College of Science, University of Bahrain, 32038, Bahrain
| | | | - Judith Vijaya J
- Department of Chemistry, Catalysis and Nanomaterials Research Laboratory, Loyola College, Chennai 600 034, India
| | - Ayman H Kamel
- Department of Chemistry, College of Science, University of Bahrain, 32038, Bahrain; Department of Chemistry, Faculty of Science, Ain Shams University, Abbasia, Cairo 11566, Egypt
| | - Mohamed Bououdina
- Department of Mathematics and Science, Faculty of Humanities and Sciences, Prince Sultan University, Riyadh, Saudi Arabia.
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4
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Hu Y, Wu W. Application of Membrane Filtration to Cold Sterilization of Drinks and Establishment of Aseptic Workshop. FOOD AND ENVIRONMENTAL VIROLOGY 2023:10.1007/s12560-023-09551-6. [PMID: 36933166 PMCID: PMC10024305 DOI: 10.1007/s12560-023-09551-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/27/2023] [Indexed: 06/01/2023]
Abstract
Aseptic packaging of high quality beverage is necessary and its cold-pasteurization or sterilization is vital. Studies on application of ultrafiltration or microfiltration membrane to cold- pasteurization or sterilization for the aseptic packaging of beverages have been reviewed. Designing and manufacturing ultrafiltration or microfiltration membrane systems for cold-pasteurization or sterilization of beverage are based on the understanding of size of microorganisms and theoretical achievement of filtration. It is concluded that adaptability of membrane filtration, especially its combination with other safe cold method, to cold- pasteurization and sterilization for the aseptic packaging of beverages should be assured without a shadow of doubt in future.
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Affiliation(s)
- Yunhao Hu
- College of Food Science, Southwest University, No.2 Tian Shengqiao, Beibei, Chongqing, People's Republic of China
| | - Wenbiao Wu
- College of Food Science, Southwest University, No.2 Tian Shengqiao, Beibei, Chongqing, People's Republic of China.
- Research Center of Grains, Oils and Foods Engineering Design, Industrial Research Institute, Southwest University, No.2 Tian Shengqiao, Beibei, Chongqing, People's Republic of China.
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Onursal A, Icgen B. Wastewater treatment plants discharges disseminated more Giardia than Cryptosporidium. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2023; 95:e10839. [PMID: 36751137 DOI: 10.1002/wer.10839] [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: 09/30/2022] [Revised: 01/16/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
Parasitic protozoa Giardia intestinalis and Cryptosporidium parvum are causative agents for giardiasis and cryptosporidiosis, respectively. These infections are mostly associated with waterborne diseases. The discharges from wastewater treatment plants (WWTPs) that reach surface waters cause waterborne transmission because there are no regulations for monitoring these protozoa. This emphasizes how crucial the removal capacities of WWTPs to prevent the spread of infectious parasitic pathogens. For this reason, in this study, five different types of WWTPs including conventional activated sludge (CAS), biological nutrient removal (BNR), sequencing batch reactor (SBR), membrane bioreactor (MBR), and WWTP with coagulation-flocculation and UV disinfection (CoFlUV) units were investigated over a year, seasonally in terms of their G. intestinalis and C. parvum removal capacities. The seasonal abundances of these protozoa-specific genes in both the influents and effluents of each WWTP were determined by qPCR. The reduction of protozoan rDNA copies in the effluent wastewater samples compared with the influent wastewater samples was assessed as log10 reduction values (LRVs). LRVs >3 were reachable for C. parvum in all types of WWTPs tested. However, only LRVs 1-2 were reachable for G. intestinalis in CAS, SBR, CoFlUV, and MBR. Significant seasonal variations were just observed in SBR and CAS for G. intestinalis and C. parvum (p < 0.05), respectively. The findings depicted that WWTPs tested disseminated more giardiasis causative agents than cryptosporidiosis. Therefore, G. intestinalis needs to be monitored in WWTPs' discharges to reduce any potential damage of this parasite to public health. PRACTITIONER POINTS: Removal of G. intestinalis and C. parvum in WWTPs was affected by the process. LRV 2.92 was the highest LRV achieved for G. intestinalis. LRV >3 was reachable for C. parvum. WWTPs discharges disseminated more G. intestinalis than C. parvum. WWTPs effluents should be monitored in terms of G. intestinalis.
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Affiliation(s)
- Asli Onursal
- Department of Environmental Engineering, Middle East Technical University, Ankara, Turkey
| | - Bulent Icgen
- Department of Environmental Engineering, Middle East Technical University, Ankara, Turkey
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Al-Hazmi HE, Shokrani H, Shokrani A, Jabbour K, Abida O, Mousavi Khadem SS, Habibzadeh S, Sonawane SH, Saeb MR, Bonilla-Petriciolet A, Badawi M. Recent advances in aqueous virus removal technologies. CHEMOSPHERE 2022; 305:135441. [PMID: 35764113 PMCID: PMC9233172 DOI: 10.1016/j.chemosphere.2022.135441] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 06/13/2022] [Accepted: 06/20/2022] [Indexed: 05/09/2023]
Abstract
The COVID-19 outbreak has triggered a massive research, but still urgent detection and treatment of this virus seems a public concern. The spread of viruses in aqueous environments underlined efficient virus treatment processes as a hot challenge. This review critically and comprehensively enables identifying and classifying advanced biochemical, membrane-based and disinfection processes for effective treatment of virus-contaminated water and wastewater. Understanding the functions of individual and combined/multi-stage processes in terms of manufacturing and economical parameters makes this contribution a different story from available review papers. Moreover, this review discusses challenges of combining biochemical, membrane and disinfection processes for synergistic treatment of viruses in order to reduce the dissemination of waterborne diseases. Certainly, the combination technologies are proactive in minimizing and restraining the outbreaks of the virus. It emphasizes the importance of health authorities to confront the outbreaks of unknown viruses in the future.
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Affiliation(s)
- Hussein E Al-Hazmi
- Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, Ul. Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - Hanieh Shokrani
- Department of Chemical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran
| | - Amirhossein Shokrani
- Department of Mechanical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran
| | - Karam Jabbour
- College of Engineering and Technology, American University of the Middle East, Kuwait
| | - Otman Abida
- College of Engineering and Technology, American University of the Middle East, Kuwait
| | | | - Sajjad Habibzadeh
- Surface Reaction and Advanced Energy Materials Laboratory, Chemical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
| | - Shirish H Sonawane
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal, 506004, Telangana, India
| | - Mohammad Reza Saeb
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza 11/12 80-233, Gdańsk, Poland
| | | | - Michael Badawi
- Université de Lorraine, Laboratoire de Physique et Chimie Théoriques LPCT UMR CNRS, 7019, Nancy, France.
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7
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Membrane Bioreactors for Produced Water Treatment: A Mini-Review. MEMBRANES 2022; 12:membranes12030275. [PMID: 35323750 PMCID: PMC8955330 DOI: 10.3390/membranes12030275] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 12/30/2022]
Abstract
Environmentalists are prioritizing reuse, recycling, and recovery systems to meet rising water demand. Diving into produced water treatment to enable compliance by the petroleum industry to meet discharge limits has increased research into advanced treatment technologies. The integration of biological degradation of pollutants and membrane separation has been recognized as a versatile technology in dealing with produced water with strength of salts, minerals, and oils being produced during crude refining operation. This review article presents highlights on produced water, fundamental principles of membrane bioreactors (MBRs), advantages of MBRs over conventional technologies, and research progress in the application of MBRs in treating produced water. Having limited literature that specifically addresses MBRs for PW treatment, this review also attempts to elucidate the treatment efficiency of MBRs PW treatment, integrated MBR systems, general fouling, and fouling mitigation strategies.
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8
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Chen C, Guo L, Yang Y, Oguma K, Hou LA. Comparative effectiveness of membrane technologies and disinfection methods for virus elimination in water: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 801:149678. [PMID: 34416607 PMCID: PMC8364419 DOI: 10.1016/j.scitotenv.2021.149678] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/20/2021] [Accepted: 08/11/2021] [Indexed: 05/22/2023]
Abstract
The pandemic of the 2019 novel coronavirus disease (COVID-19) has brought viruses into the public horizon. Since viruses can pose a threat to human health in a low concentration range, seeking efficient virus removal methods has been the research hotspots in the past few years. Herein, a total of 1060 research papers were collected from the Web of Science database to identify technological trends as well as the research status. Based on the analysis results, this review elaborates on the state-of-the-art of membrane filtration and disinfection technologies for the treatment of virus-containing wastewater and drinking water. The results evince that membrane and disinfection methods achieve a broad range of virus removal efficiency (0.5-7 log reduction values (LRVs) and 0.09-8 LRVs, respectively) that is attributable to the various interactions between membranes or disinfectants and viruses having different susceptibility in viral capsid protein and nucleic acid. Moreover, this review discusses the related challenges and potential of membrane and disinfection technologies for customized virus removal in order to prevent the dissemination of the waterborne diseases.
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Affiliation(s)
- Chao Chen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing 100875, China.
| | - Lihui Guo
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing 100875, China.
| | - Yu Yang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing 100875, China.
| | - Kumiko Oguma
- Department of Urban Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Li-An Hou
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing 100875, China; Xi'an High-Tech Institute, Xi'an 710025, China.
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9
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Cost Analysis and Health Risk Assessment of Wastewater Reuse from Secondary and Tertiary Wastewater Treatment Plants. SUSTAINABILITY 2021. [DOI: 10.3390/su132313125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Irrigation with reclaimed water is a widespread solution to coping with water scarcity, especially in the Middle East and North Africa (MENA) region. This paper presents a systematic evaluation approach of six treatment alternatives proposed for Alexandria WWTP in Egypt as an applied example. This approach evaluates the effluent quality and cubic meter price from the proposed treatment alternatives while managing the health risks associated with reclaimed water irrigation. Rotavirus, Salmonella, Giardia duodenalis, and Ascaris were studied as waterborne pathogens. A quantitative microbial risk assessment model was used for the estimation of annual infection risks. The exposure scenarios include farmers and vegetable consumers. Activated sludge provided the lowest costs; however, it gave the lowest efficiencies and highest health risks. On the other hand, the highest efficiency and lowest health risks were obtained by the membrane bioreactor. The resulting price of a cubic meter of treated wastewater, used in irrigation, ranged from 0.082 to 0.133 USD. Irrigation using tertiary-treated wastewater achieved the target infection risk for unrestricted irrigation without using advanced treatment facilities. The results of this study could give a comprehensive view of reusing wastewater to decision-makers to address both water and food poverty not only in Egypt but also in other countries in MENA with similar economic and agro-ecological conditions.
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Zhao Y, Qiu Y, Mamrol N, Ren L, Li X, Shao J, Yang X, van der Bruggen B. Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes. Front Chem Sci Eng 2021; 16:634-660. [PMID: 34849268 PMCID: PMC8617552 DOI: 10.1007/s11705-021-2107-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/15/2021] [Indexed: 11/26/2022]
Abstract
Discharged hospital wastewater contains various pathogenic microorganisms, antibiotic groups, toxic organic compounds, radioactive elements, and ionic pollutants. These contaminants harm the environment and human health causing the spread of disease. Thus, effective treatment of hospital wastewater is an urgent task for sustainable development. Membranes, with controllable porous and nonporous structures, have been rapidly developed for molecular separations. In particular, membrane bioreactor (MBR) technology demonstrated high removal efficiency toward organic compounds and low waste sludge production. To further enhance the separation efficiency and achieve material recovery from hospital waste streams, novel concepts of MBRs and their applications are rapidly evolved through hybridizing novel membranes (non hydrophilic ultrafiltration/microfiltration) into the MBR units (hybrid MBRs) or the MBR as a pretreatment step and integrating other membrane processes as subsequent secondary purification step (integrated MBR-membrane systems). However, there is a lack of reviews on the latest advancement in MBR technologies for hospital wastewater treatment, and analysis on its major challenges and future trends. This review started with an overview of main pollutants in common hospital waste-water, followed by an understanding on the key performance indicators/criteria in MBR membranes (i.e., solute selectivity) and processes (e.g., fouling). Then, an in-depth analysis was provided into the recent development of hybrid MBR and integrated MBR-membrane system concepts, and applications correlated with wastewater sources, with a particular focus on hospital wastewaters. It is anticipated that this review will shed light on the knowledge gaps in the field, highlighting the potential contribution of hybrid MBRs and integrated MBR-membrane systems toward global epidemic prevention.
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Affiliation(s)
- Yan Zhao
- Department of Chemical Engineering, KU Leuven, B-3001 Leuven, Belgium
| | - Yangbo Qiu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Natalie Mamrol
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Longfei Ren
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Xin Li
- Department of Chemical Engineering, KU Leuven, B-3001 Leuven, Belgium
| | - Jiahui Shao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Xing Yang
- Department of Chemical Engineering, KU Leuven, B-3001 Leuven, Belgium
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Iakovides IC, Manoli K, Karaolia P, Michael-Kordatou I, Manaia CM, Fatta-Kassinos D. Reduction of antibiotic resistance determinants in urban wastewater by ozone: Emphasis on the impact of wastewater matrix towards the inactivation kinetics, toxicity and bacterial regrowth. JOURNAL OF HAZARDOUS MATERIALS 2021; 420:126527. [PMID: 34329111 DOI: 10.1016/j.jhazmat.2021.126527] [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: 03/03/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
This study investigated the impact of bench-scale ozonation on the inactivation of total cultivable and antibiotic-resistant bacteria (faecal coliforms, Escherichia coli, Pseudomonas aeruginosa, Enterococcus spp., and total heterotrophs), and the reduction of gene markers (16S rRNA and intl1) and antibiotic resistance genes (qacEΔ1, sul1, aadA1 and dfrA1) indigenously present in wastewater effluents treated by membrane bioreactor (MBR) or conventional activated sludge (CAS). The Chick-Watson model-predicted ozone exposure (CT) requirements, showed that higher CT values were needed for CAS- than MBR-treated effluents to achieve a 3-log reduction of each microbial group, i.e., ~30 and 10 gO3 min gDOC-1 respectively. Ozonation was efficient in inactivating the examined antibiotic-resistant bacteria, and no bacterial regrowth was observed after 72 h. The genes abundance decreased significantly by ozone, but an increase in their abundance was detected 72 h after storage of the treated samples. A very low removal of DOC was achieved and at the same time phyto- and eco-toxicity increased after the ozonation treatment in both wastewater matrices. The gene abundance, regrowth and toxicity results of this study may be of high environmental significance for comprehensive evaluation of ozone and may guide future studies in assessing these parameters for other oxidants/disinfectants.
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Affiliation(s)
- I C Iakovides
- Department of Civil and Environmental Engineering, School of Engineering, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus; Nireas-International Water Research Centre, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
| | - K Manoli
- Department of Civil and Environmental Engineering, School of Engineering, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus; Nireas-International Water Research Centre, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
| | - P Karaolia
- Nireas-International Water Research Centre, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
| | - I Michael-Kordatou
- Nireas-International Water Research Centre, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
| | - C M Manaia
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - D Fatta-Kassinos
- Department of Civil and Environmental Engineering, School of Engineering, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus; Nireas-International Water Research Centre, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus.
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12
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Norrrahim MNF, Mohd Kasim NA, Knight VF, Ong KK, Mohd Noor SA, Abdul Halim N, Ahmad Shah NA, Jamal SH, Janudin N, Misenan MSM, Ahmad MZ, Yaacob MH, Wan Yunus WMZ. Emerging Developments Regarding Nanocellulose-Based Membrane Filtration Material against Microbes. Polymers (Basel) 2021; 13:3249. [PMID: 34641067 PMCID: PMC8512566 DOI: 10.3390/polym13193249] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 02/06/2023] Open
Abstract
The wide availability and diversity of dangerous microbes poses a considerable problem for health professionals and in the development of new healthcare products. Numerous studies have been conducted to develop membrane filters that have antibacterial properties to solve this problem. Without proper protective filter equipment, healthcare providers, essential workers, and the general public are exposed to the risk of infection. A combination of nanotechnology and biosorption is expected to offer a new and greener approach to improve the usefulness of polysaccharides as an advanced membrane filtration material. Nanocellulose is among the emerging materials of this century and several studies have proven its use in filtering microbes. Its high specific surface area enables the adsorption of various microbial species, and its innate porosity can separate various molecules and retain microbial objects. Besides this, the presence of an abundant OH groups in nanocellulose grants its unique surface modification, which can increase its filtration efficiency through the formation of affinity interactions toward microbes. In this review, an update of the most relevant uses of nanocellulose as a new class of membrane filters against microbes is outlined. Key advancements in surface modifications of nanocellulose to enhance its rejection mechanism are also critically discussed. To the best of our knowledge, this is the first review focusing on the development of nanocellulose as a membrane filter against microbes.
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Affiliation(s)
- Mohd Nor Faiz Norrrahim
- Research Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.F.N.); (K.K.O.); (S.A.M.N.); (N.J.)
| | - Noor Azilah Mohd Kasim
- Research Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.F.N.); (K.K.O.); (S.A.M.N.); (N.J.)
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (N.A.A.S.); (S.H.J.)
| | - Victor Feizal Knight
- Research Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.F.N.); (K.K.O.); (S.A.M.N.); (N.J.)
| | - Keat Khim Ong
- Research Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.F.N.); (K.K.O.); (S.A.M.N.); (N.J.)
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (N.A.A.S.); (S.H.J.)
| | - Siti Aminah Mohd Noor
- Research Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.F.N.); (K.K.O.); (S.A.M.N.); (N.J.)
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (N.A.A.S.); (S.H.J.)
| | - Norhana Abdul Halim
- Department of Physics, Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia;
| | - Noor Aisyah Ahmad Shah
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (N.A.A.S.); (S.H.J.)
| | - Siti Hasnawati Jamal
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (N.A.A.S.); (S.H.J.)
| | - Nurjahirah Janudin
- Research Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.F.N.); (K.K.O.); (S.A.M.N.); (N.J.)
| | - Muhammad Syukri Mohamad Misenan
- Department of Chemistry, College of Arts and Science, Yildiz Technical University, Davutpasa Campus, Esenler, Istanbul 34220, Turkey;
| | - Muhammad Zamharir Ahmad
- Biotechnology and Nanotechnology Research Centre, Malaysia Agricultural Research and Development Institute, Persiaran MARDI-UPM, Serdang 43400, Selangor, Malaysia;
| | - Mohd Hanif Yaacob
- Wireless and Photonics Network Research Centre (WiPNET), Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Wan Md Zin Wan Yunus
- Research Centre for Tropicalisation, Universiti Pertahanan Nasional Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia
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13
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Asif MB, Price WE, Fida Z, Tufail A, Ren T, Hai FI. Acid mine drainage and sewage impacted groundwater treatment by membrane distillation: Organic micropollutant and metal removal and membrane fouling. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 291:112708. [PMID: 33971511 DOI: 10.1016/j.jenvman.2021.112708] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 04/13/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
Groundwater is the dominant source of freshwater in many countries around the globe, and the deterioration in its quality by contaminants originating from anthropogenic sources raises serious concern. In this study, a scenario where groundwater is contaminated by acid mine drainage (AMD) from mining activities and/or sewage was envisaged, and the performance of a direct contact membrane distillation (DCMD) system was investigated comprehensively for different compositions of the AMD- and sewage-impacted groundwater. Regardless of the composition, MD membrane achieved 98-100% removal of metals and bulk organics, while the removal of the selected micropollutants ranged between 80 and 100%. Effective retention of contaminants by the MD led to their accumulation over time, which affected the hydraulic performance of the MD membrane by reducing the permeate flux by 29-76%. When persulfate (PS)-mediated oxidation process was integrated with the DCMD, degradation of bulk organics (50-71%) and micropollutants (50-100%) by PS reduced their accumulation. Characterisation of the fouling layer revealed the occurrence of membrane scaling that was mainly due to the deposition of iron oxide or oxyhydroxide precipitates. For an identical composition of the AMD- and sewage-impacted groundwater, flux decline was 10% less in PS-assisted DCMD as compared to that in the standalone DCMD. However, this did not prevent the formation of iron oxide scales on MD membrane during the operation of PS-assisted DCMD. This study demonstrates the long-term performance of a standalone and PS-assisted DCMD operated in continuous-flow mode to treat AMD- and sewage-impacted groundwater for the first time.
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Affiliation(s)
- Muhammad Bilal Asif
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia; Institute of Environmental Engineering & Nano-Technology, Tsinghua-Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, 518055, China
| | - William E Price
- Strategic Water Infrastructure Laboratory, School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Zulqarnain Fida
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Arbab Tufail
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Ting Ren
- Mineral and Resource Engineering, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia.
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14
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Lee E, Rout PR, Bae J. The applicability of anaerobically treated domestic wastewater as a nutrient medium in hydroponic lettuce cultivation: Nitrogen toxicity and health risk assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 780:146482. [PMID: 33770595 DOI: 10.1016/j.scitotenv.2021.146482] [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: 12/03/2020] [Revised: 02/24/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
The applicability of anaerobic effluent (AE) from an anaerobic membrane bioreactor (AnMBR) treating domestic wastewater as a nutrient medium was evaluated through hydroponic cultivation of lettuce. The growth of lettuce plants on AE media was significantly inhibited to 31-40% in height and 36-48% in number of leaves compared to that on half-strength Hoagland solution (HHS) as a control. The primary cause of inhibition was nitrite toxicity as induced by partial nitrification. Therefore, the nitrification of AE as a pre-treatment step was adopted to prevent the toxicity of nitrite. The heights of lettuce grown on nitrified anaerobic effluent (NAE) and nitrified anaerobic effluent with 96 mg/L sulfate (NAES) were in the range of 11.4-11.5 cm and was comparable to that on control solution (11.4 cm). The potential health risk for heavy metals was insignificant based on health risk index (HRI < 1) and targeted hazardous quotient (THQ < 1). These results show that efficient crop production can be achieved with AE, but suitable pre-treatment steps should be followed.
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Affiliation(s)
- Eunseok Lee
- Department of Environmental Engineering, Inha University, Michuhol-gu, Inharo 100, Incheon, Republic of Korea
| | - Prangya Ranjan Rout
- Department of Environmental Engineering, Inha University, Michuhol-gu, Inharo 100, Incheon, Republic of Korea
| | - Jaeho Bae
- Department of Environmental Engineering, Inha University, Michuhol-gu, Inharo 100, Incheon, Republic of Korea.
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15
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Removal of Pathogens in Onsite Wastewater Treatment Systems: A Review of Design Considerations and Influencing Factors. WATER 2021. [DOI: 10.3390/w13091190] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Conventional onsite wastewater treatment systems (OWTSs) could potentially contribute to the transmission of infectious diseases caused by waterborne pathogenic microorganisms and become an important human health concern, especially in the areas where OWTSs are used as the major wastewater treatment units. Although previous studies suggested the OWTSs could reduce chemical pollutants as well as effectively reducing microbial contaminants from onsite wastewater, the microbiological quality of effluents and the factors potentially affecting the removal are still understudied. Therefore, the design and optimization of pathogen removal performance necessitate a better mechanistic understanding of the hydrological, geochemical, and biological processes controlling the water quality in OWTSs. To fill the knowledge gaps, the sources of pathogens and common pathogenic indicators, along with their major removal mechanisms in OWTSs were discussed. This review evaluated the effectiveness of pathogen removal in state-of-art OWTSs and investigated the contributing factors for efficient pathogen removal (e.g., system configurations, filter materials, environmental and operational conditions), with the aim to guide the future design for optimized treatment performance.
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16
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Giménez-Lorang A, Vázquez-Padín JR, Dorado-Barragán C, Sánchez-Santos G, Vila-Armadas S, Flotats-Ripoll X. Treatment of the Supernatant of Anaerobically Digested Organic Fraction of Municipal Solid Waste in a Demo-Scale Mesophilic External Anaerobic Membrane Bioreactor. Front Bioeng Biotechnol 2021; 9:642747. [PMID: 33912547 PMCID: PMC8072359 DOI: 10.3389/fbioe.2021.642747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 03/08/2021] [Indexed: 11/13/2022] Open
Abstract
Conventional aerobic biological treatments of digested organic fraction of municipal solid waste (OFMSW) slurries-usually conventional activated sludge or aerobic membrane bioreactor (AeMBR)-are inefficient in terms of energy and economically costly because of the high aeration requirements and the high amount of produced sludge. In this study, the supernatant obtained after the anaerobic digestion of OFMSW was treated in a mesophilic demo-scale anaerobic membrane bioreactor (AnMBR) at cross flow velocities (CFVs) between 1 and 3.5 m⋅s-1. The aim was to determine the process performance of the system with an external ultrafiltration unit, in terms of organic matter removal and sludge filterability. In previous anaerobic continuous stirred tank reactor (CSTR) tests, without ultrafiltration, specific gas production between 40 and 83 NL CH4⋅kg-1 chemical oxygen demand (COD) fed and removals in the range of 10-20% total COD (tCOD) or 59-77% soluble COD (sCOD) were obtained, for organic loading rates (OLR) between 1.7 and 4.4 kg COD⋅m-3 reactor d-1. Data helped to identify a simplified model with the aim of understanding and expressing the process performance. Methane content in biogas was in the range of 74-77% v:v. In the AnMBR configuration, the COD removal has been in the ranges of 15.6-38.5 and 61.3-70.4% for total and sCOD, respectively, with a positive correlation between solids retention time (SRT, ranging from 7.3 to 24.3 days) and tCOD removal. The constant used in the model expressing inhibition, attributable to the high nitrogen content (3.6 ± 1.0 g N-NH4 +⋅L-1), indicated that this inhibition decreased when SRT increased, explaining values measured for volatile fatty acids concentration, which decreased when SRT increased and OLR, measured per unit of volatile suspended solids in the reactor, decreased. The alkalinity was high enough to allow a stable process throughout the experiments. Constant CFV operation resulted in excessive fouling and sudden trans-membrane pressure (TMP) increases. Nevertheless, an ultrafiltration regime based on alternation of CFV (20 min with a certain CFVi and then 5 min at CFVi + 1 m⋅s-1) allowed the membranes to filter at a flux (standardized at 20°C temperature) ranging from 2.8 to 7.3 L⋅m-2⋅h-1, over 331 days of operation, even at very high suspended solids concentrations (>30 g total suspended solids⋅L-1) in the reactor sludge. This flux range confirms that fouling is the main issue that can limit the spread of AnMBR potential for the studied stream. No clear correlation was found between CFV or SRT vs. fouling rate, in terms of either TMP⋅time-1 or permeability⋅time-1. As part of the demo-scale study, other operational limitations were observed: irreversible fouling, scaling (in the form of struvite deposition), ragging, and sludging. Because ragging and sludging were also observed in the existing AeMBR, it can be stated that both are attributable to the stream and to the difficulty of removing existing fibers. All the mentioned phenomena could have contributed to the high data dispersion of experimental results.
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Affiliation(s)
| | | | | | - Gloria Sánchez-Santos
- Direction of Prevention and Management Services of Área Metropolitana de Barcelona, Barcelona, Spain
| | - Sandra Vila-Armadas
- Direction of Prevention and Management Services of Área Metropolitana de Barcelona, Barcelona, Spain
| | - Xavier Flotats-Ripoll
- GIRO Joint Research Unit IRTA-UPC, Department of Agrifood Engineering and Biotechnology, Universitat Politècnica de Catalunya UPC-BarcelonaTECH, Barcelona, Spain
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17
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Fida Z, Price WE, Pramanik BK, Dhar BR, Kumar M, Jiang G, Hai FI. Reduction of excess sludge production by membrane bioreactor coupled with anoxic side-stream reactors. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 281:111919. [PMID: 33418384 DOI: 10.1016/j.jenvman.2020.111919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/14/2020] [Accepted: 12/27/2020] [Indexed: 06/12/2023]
Abstract
While cleaning wastewater, biological wastewater treatment processes such as membrane bioreactors (MBR) produce a significant amount of sludge that requires costly management. In the oxic-settling-anoxic (OSA) process, sludge is retained for a temporary period in side-stream reactors with low oxygen and substrate, and then it is recirculated to the main reactor. In this way, excess sludge production is reduced. We studied the influence of the rate of sludge exchange between MBR and side-stream anoxic reactors on sludge yield reduction within MBR. Two MBRs, namely, MBROSA and MBRcontrol, each coupled with separate external anoxic side-stream reactors, were run in parallel for 350 days. Unlike MBRcontrol, MBROSA had sludge exchange with the external reactors connected to it. During the investigation over a sludge interchange rate (SIR) range of 0-22%, an SIR of 11% achieved the highest sludge reduction (58%). Greater volatile solids destruction i.e., bacterial cell lysis and extracellular polymeric substance (EPS) destruction occurred at the SIR of 11%, which helped to achieve the highest sludge reduction. The enhanced volatile solids destruction was evident by the release of nutrients in the external anoxic reactors. It was confirmed that the sludge yield reduction was achieved without compromising the wastewater treatment quality, sludge settleability and hydraulic performance of the membrane in MBR.
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Affiliation(s)
- Zulqarnain Fida
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - William E Price
- Strategic Water Infrastructure Laboratory, School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW, 2522, Australia
| | | | - Bipro Ranjan Dhar
- Department of Civil and Environmental Engineering, University of Alberta, 9211-116, Street NW, Edmonton, AB T6G 1H9, Canada
| | - Manish Kumar
- Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, Gujarat, 382355, India
| | - Guangming Jiang
- School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia.
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18
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Route of SARS-CoV-2 in sewerage and wastewater treatment plants. ENVIRONMENTAL AND HEALTH MANAGEMENT OF NOVEL CORONAVIRUS DISEASE (COVID-19 ) 2021. [PMCID: PMC8237645 DOI: 10.1016/b978-0-323-85780-2.00005-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The detection of SARS-CoV-2 in the stool of COVID-19 positive persons raises the question of potential fecal-oral transmission. The virus is transported from feces to the sewer system where a dilution of about 103 times occurs, due to the discharge of drinking water, rainwater, or infiltrations. A progressive decay of SARS-CoV-2 occurs along the sewerage network and in wastewater treatment plants due to the presence of pollutants, solids, and detergents. The fragile envelope makes SARS-CoV-2 more rapidly inactivated than enteric viruses. In WWTPs, primary treatment and activated sludge process contribute partially to the virus reduction, while SARS-CoV-2 is more susceptible to disinfection such as chlorination, ozonation, or UV light. Potential sewage-associated transmission of COVID-19 may occur during flooding events in urban areas when untreated wastewater is spread or from the overload of untreated blackwater in the combined sewer systems.
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19
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Kumar M, Thakur AK, Mazumder P, Kuroda K, Mohapatra S, Rinklebe J, Ramanathan A, Cetecioglu Z, Jain S, Tyagi VK, Gikas P, Chakraborty S, Tahmidul Islam M, Ahmad A, Shah AV, Patel AK, Watanabe T, Vithanage M, Bibby K, Kitajima M, Bhattacharya P. Frontier review on the propensity and repercussion of SARS-CoV-2 migration to aquatic environment. JOURNAL OF HAZARDOUS MATERIALS LETTERS 2020; 1:100001. [PMID: 34977840 PMCID: PMC7456799 DOI: 10.1016/j.hazl.2020.100001] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/23/2020] [Accepted: 07/26/2020] [Indexed: 05/16/2023]
Abstract
Increased concern has recently emerged pertaining to the occurrence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in aquatic environment during the current coronavirus disease 2019 (COVID-19) pandemic. While infectious SARS-CoV-2 has yet to be identified in the aquatic environment, the virus potentially enters the wastewater stream from patient excretions and a precautionary approach dictates evaluating transmission pathways to ensure public health and safety. Although enveloped viruses have presumed low persistence in water and are generally susceptible to inactivation by environmental stressors, previously identified enveloped viruses persist in the aqueous environment from days to several weeks. Our analysis suggests that not only the surface water, but also groundwater, represent SARS-CoV-2 control points through possible leaching and infiltrations of effluents from health care facilities, sewage, and drainage water. Most fecally transmitted viruses are highly persistent in the aquatic environment, and therefore, the persistence of SARS-CoV-2 in water is essential to inform its fate in water, wastewater and groundwater and subsequent human exposure.
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Affiliation(s)
- Manish Kumar
- Discipline of Earth Science, Indian Institute of Technology Gandhinagar, Gujarat 382 355, India
| | - Alok Kumar Thakur
- Discipline of Earth Science, Indian Institute of Technology Gandhinagar, Gujarat 382 355, India
| | - Payal Mazumder
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Keisuke Kuroda
- Department of Environmental and Civil Engineering, Toyama Prefectural University, Toyama 9390398, Japan
| | - Sanjeeb Mohapatra
- Environmental Science and Engineering Department, Indian Institute of Technology, Bombay, India
| | - Jörg Rinklebe
- Laboratory of Soil- and Groundwater-Management, School of Architecture and Civil Engineering, University of Wuppertal, Wuppertal 42285, Germany
- Department of Environment, Energy and Geoinformatics, University of Sejong, Seoul, Republic of Korea
| | - Al Ramanathan
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Zeynep Cetecioglu
- Department of Chemical Engineering, KTH Royal Institute of Technology, Teknikringen 42, SE100 44 Stockholm, Sweden
| | - Sharad Jain
- Department of Civil Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India
| | - Vinay Kumar Tyagi
- Department of Civil Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India
| | - Petros Gikas
- School of Environmental Engineering, Technical University of Crete, Chania 73100, Greece
| | - Sudip Chakraborty
- Department of IngegneriaModellisticaElettronica&Sistemistica,University of Calabria, Via P. Bucci, Cubo 42/a, 87036 Rende (CS), Italy
| | - M Tahmidul Islam
- Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Teknikringen 10B, SE-10044 Stockholm, Sweden
| | - Arslan Ahmad
- KWR Water Cycle Research Institute, Groningenhaven 7, 3433 PE Nieuwegein, The Netherlands
- Department of Environmental Technology, Wageningen University and Research (WUR), The Netherlands
| | - Anil V Shah
- Gujarat Pollution Control Board, Sector-10A, Gandhinagar 382010, Gujarat, India
| | - Arbind Kumar Patel
- Discipline of Earth Science, Indian Institute of Technology Gandhinagar, Gujarat 382 355, India
| | - Toru Watanabe
- Department of Food, Life and Environmental Sciences, Yamagata University, Tsuruoka, Yamagata, Japan
| | - Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Kyle Bibby
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, 156 Fitzpatrick Hall, Notre Dame, IN 46556, United States
| | - Masaaki Kitajima
- Division of Environmental Engineering, Hokkaido University, North 13 West 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
- Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Teknikringen 10B, SE-10044 Stockholm, Sweden
| | - Prosun Bhattacharya
- Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Teknikringen 10B, SE-10044 Stockholm, Sweden
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20
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Conventional vs. algal wastewater technologies: Reclamation of microbially safe water for agricultural reuse. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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21
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Zhu Y, Kawai H, Hashiba S, Amarasiri M, Kitajima M, Okabe S, Sano D. The Effect of GD1a Ganglioside-Expressing Bacterial Strains on Murine Norovirus Infectivity. Molecules 2020; 25:E4084. [PMID: 32906699 PMCID: PMC7571017 DOI: 10.3390/molecules25184084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 02/07/2023] Open
Abstract
In this study, we investigated the impact of GD1a-expressing bacterial strains on the infectivity of murine norovirus (MNV). Eligible bacterial strains were screened from a sewage sample using flow cytometry, and their genetic sequences of 16S rRNA were determined. The enzyme-linked immunosorbent assay (ELISA) was employed to analyze the binding between bacteria and MNV particles, and the plaque assay was used to assess the effects of GD1a-positive and negative strains on MNV infectivity. The result from ELISA shows that MNV particles are able to bind to both GD1a-positive and negative bacterial strains, but the binding to the GD1a-positive strain is more significant. The infectivity assay result further shows that the MNV infectious titer declined with an increasing concentration of GD1a-positive bacteria. The addition of anti-GD1a antibody in the infectivity assay led to the recovery of the MNV infectious titer, further confirming that the binding between MNV particles and bacterial GD1a ganglioside compromises MNV infectivity. Our findings highlight the role indigenous bacteria may play in the lifecycle of waterborne enteric viruses as well as the potential of exploiting them for virus transmission intervention and water safety improvement.
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Affiliation(s)
- Yifan Zhu
- Department of Frontier Sciences for Advanced Environment, Graduate School of Environmental Studies, Tohoku University, Aoba 6-6-06, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;
| | - Hiroki Kawai
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North 13 West 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan; (H.K.); (S.H.); (M.K.); (S.O.)
| | - Satoshi Hashiba
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North 13 West 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan; (H.K.); (S.H.); (M.K.); (S.O.)
| | - Mohan Amarasiri
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Aoba 6-6-06, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;
- Department of Health Science, School of Allied Health Sciences, Kitasato University, 1-15-1 Kitasato, Sagamihara-Minami, Kanagawa 252-0373, Japan
| | - Masaaki Kitajima
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North 13 West 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan; (H.K.); (S.H.); (M.K.); (S.O.)
| | - Satoshi Okabe
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North 13 West 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan; (H.K.); (S.H.); (M.K.); (S.O.)
| | - Daisuke Sano
- Department of Frontier Sciences for Advanced Environment, Graduate School of Environmental Studies, Tohoku University, Aoba 6-6-06, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Aoba 6-6-06, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;
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22
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Vergine P, Amalfitano S, Salerno C, Berardi G, Pollice A. Reuse of ultrafiltered effluents for crop irrigation: On-site flow cytometry unveiled microbial removal patterns across a full-scale tertiary treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 718:137298. [PMID: 32087587 DOI: 10.1016/j.scitotenv.2020.137298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 06/10/2023]
Abstract
Reuse of treated wastewater for crop irrigation has been widely adopted to mitigate the effects of water scarcity on agricultural yields and to help preserving the integrity of aquatic ecosystems. This paper presents the outcomes of one-year monitoring of a full-scale agro-industrial wastewater treatment plant designed for water reuse, with a multistage tertiary treatment based on sand filtration, membrane ultrafiltration, storage and on-demand UV disinfection. We aimed to test flow cytometry as a monitoring tool to provide on-site indications on tertiary treatment performances and on the quality of treated wastewater along the treatment scheme. Membrane ultrafiltration retained prokaryotic cells and E. coli (>3 log). During storage of treated effluents, a significant decay of E. coli was observed together with the growth of prokaryotic and eukaryotic cells, and the UV disinfection was effective only against fecal indicators. The microbial quality of the treated effluent was comparable to the control groundwater locally used for irrigation. On-site rapid assessments by flow cytometry allowed unveiling crucial aspects affecting the microbiological quality of ultrafiltration permeate and treated effluent immediately after sampling, including plant operating performances and microbial removal patterns across the treatment train.
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Affiliation(s)
- Pompilio Vergine
- Water Research Institute (IRSA-CNR), Viale F. De Blasio, 5, 70132 Bari, Italy
| | - Stefano Amalfitano
- Water Research Institute (IRSA-CNR), Via Salaria Km 29.300, 00015 Monterotondo, Rome, Italy.
| | - Carlo Salerno
- Water Research Institute (IRSA-CNR), Viale F. De Blasio, 5, 70132 Bari, Italy
| | - Giovanni Berardi
- Water Research Institute (IRSA-CNR), Viale F. De Blasio, 5, 70132 Bari, Italy
| | - Alfieri Pollice
- Water Research Institute (IRSA-CNR), Viale F. De Blasio, 5, 70132 Bari, Italy
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23
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Rizzo L, Gernjak W, Krzeminski P, Malato S, McArdell CS, Perez JAS, Schaar H, Fatta-Kassinos D. Best available technologies and treatment trains to address current challenges in urban wastewater reuse for irrigation of crops in EU countries. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 710:136312. [PMID: 32050367 DOI: 10.1016/j.scitotenv.2019.136312] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/21/2019] [Accepted: 12/22/2019] [Indexed: 05/09/2023]
Abstract
Conventional urban wastewater treatment plants (UWTPs) are poorly effective in the removal of most contaminants of emerging concern (CECs), including antibiotics, antibiotic resistant bacteria and antibiotic resistance genes (ARB&ARGs). These contaminants result in some concern for the environment and human health, in particular if UWTPs effluents are reused for crop irrigation. Recently, stakeholders' interest further increased in Europe, because the European Commission is currently developing a regulation on water reuse. Likely, conventional UWTPs will require additional advanced treatment steps to meet water quality limits yet to be officially established for wastewater reuse. Even though it seems that CECs will not be included in the proposed regulation, the aim of this paper is to provide a technical contribution to this discussion as well as to support stakeholders by recommending possible advanced treatment options, in particular with regard to the removal of CECs and ARB&ARGs. Taking into account the current knowledge and the precautionary principle, any new or revised water-related Directive should address such contaminants. Hence, this review paper gathers the efforts of a group of international experts, members of the NEREUS COST Action ES1403, who for three years have been constructively discussing the efficiency of the best available technologies (BATs) for urban wastewater treatment to abate CECs and ARB&ARGs. In particular, ozonation, activated carbon adsorption, chemical disinfectants, UV radiation, advanced oxidation processes (AOPs) and membrane filtration are discussed with regard to their capability to effectively remove CECs and ARB&ARGs, as well as their advantages and drawbacks. Moreover, a comparison among the above-mentioned processes is performed for CECs relevant for crop uptake. Finally, possible treatment trains including the above-discussed BATs are discussed, issuing end-use specific recommendations which will be useful to UWTPs managers to select the most suitable options to be implemented at their own facilities to successfully address wastewater reuse challenges.
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Affiliation(s)
- Luigi Rizzo
- Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy.
| | - Wolfgang Gernjak
- Catalan Institute for Water Research (ICRA), Emili Grahit 101, 17003 Girona, Spain; Catalan Institute for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Pawel Krzeminski
- Section of Systems Engineering and Technology, Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, N-0349 Oslo, Norway
| | - Sixto Malato
- Plataforma Solar de Almería (CIEMAT), Carretera de Senés, km. 4, Tabernas, Almería 04200, Spain; Solar Energy Research Centre (CIESOL), Joint Centre University of Almería-CIEMAT, Universitiy of Almeria, Ctra. Sacramento s/n, ES04120 Almería, Spain
| | - Christa S McArdell
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Jose Antonio Sanchez Perez
- Solar Energy Research Centre (CIESOL), Joint Centre University of Almería-CIEMAT, Universitiy of Almeria, Ctra. Sacramento s/n, ES04120 Almería, Spain; Department of Chemical Engineering, University of Almeria, Ctra. Sacramento s/n, ES04120 Almería, Spain
| | - Heidemarie Schaar
- Technische Universität Wien, Institute for Water Quality and Resource Management, Karlsplatz 13/2261, 1040 Vienna, Austria
| | - Despo Fatta-Kassinos
- Department of Civil and Environmental Engineering and Nireas, International Water Research Center, University of Cyprus, P.O. Box 20537, CY-1678 Nicosia, Cyprus.
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24
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A Review on the Mechanism, Impacts and Control Methods of Membrane Fouling in MBR System. MEMBRANES 2020; 10:membranes10020024. [PMID: 32033001 PMCID: PMC7073750 DOI: 10.3390/membranes10020024] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 12/26/2022]
Abstract
Compared with the traditional activated sludge process, a membrane bioreactor (MBR) has many advantages, such as good effluent quality, small floor space, low residual sludge yield and easy automatic control. It has a promising prospect in wastewater treatment and reuse. However, membrane fouling is the biggest obstacle to the wide application of MBR. This paper aims at summarizing the new research progress of membrane fouling mechanism, control, prediction and detection in the MBR systems. Classification, mechanism, influencing factors and control of membrane fouling, membrane life prediction and online monitoring of membrane fouling are discussed. The research trends of relevant research areas in MBR membrane fouling are prospected.
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25
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Abstract
The role of aquatic plants in treating wastewater contaminated with inorganic and organic pollutants is well established. Recent studies have shown that aquatic plants possess potential to remove pathogens from wastewater. High removal (90%) of pathogenic microbes such as Enterococci, Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa, Clostridium perfringens, Staphylococcus aureus, and Salmonella have been achieved using aquatic plant species viz. Typha latifolia, Cyperus papyrus, Cyperus alternifolius, Phragmites mauritianus, Pistia stratiotes, Lemna paucicostata, Spirodela polyrhiza, Eichhornia crassipes. Pathogen removal by aquatic plants mainly occurs because of toxicity exerted by exudates produced by them or attachment of pathogens to plant roots followed by filtration. Constructed wetlands have proved very efficient in treating pathogen-contaminated water. More studies are required to find out the exact mechanism of pathogen removal by these plants so that their role in phytoremediation technologies can be emphasized.
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Abstract
As the nanotechnological applications have taken over in different fields, their applications for water and wastewater treatment is also surfacing as a fast-developing and very promising area. Recent advancements in nanotechnological science and engineering advise that many of the waterborne pathogens could be culminated or debilitated using nanobiosorbents, nanocatalysts, bioactive nanoparticles, nanostructured catalytic membranes, nanobioreactors, nanoparticle-enhanced filtration among other products, and processes resulting from the development of nanotechnology. A detailed insight has been provided for advanced techniques such as photochemical (photocatalytic and advanced oxidation processes) applications of metal oxide nanoparticles, nanomembrane technology, bioinspired nanomaterials, and nanotechnological innovations (nano-Ag, fullerenes, nanotubes, and molecularly imprinted polymers, etc.), which prove to be highly potential as well as promising and cost-effective. However, there are still some shortcomings and challenges that must be overcome which will be looked upon in this chapter.
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27
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Ogunniyi AD, Dandie CE, Ferro S, Hall B, Drigo B, Brunetti G, Venter H, Myers B, Deo P, Donner E, Lombi E. Comparative antibacterial activities of neutral electrolyzed oxidizing water and other chlorine-based sanitizers. Sci Rep 2019; 9:19955. [PMID: 31882630 PMCID: PMC6934530 DOI: 10.1038/s41598-019-56248-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/29/2019] [Indexed: 12/16/2022] Open
Abstract
There is increasing demand for safe and effective sanitizers for irrigation water disinfection to prevent transmission of foodborne pathogens to fresh produce. Here we compared the efficacy of pH-neutral electrolyzed oxidizing water (EOW), sodium hypochlorite (NaClO) and chlorine dioxide (ClO2) against single and mixed populations of E. coli, Listeria and Salmonella under a range of pH and organic matter content. EOW treatment of the mixed bacterial suspension resulted in a dose-dependent (<1 mg/L free chlorine), rapid (<2 min) and effective (4-6 Log10) reduction of the microbial load in water devoid of organic matter under the range of pH conditions tested (pH, 6.0, 7.0, 8.4 and 9.2). The efficacy of EOW containing 5 mg/L free chlorine was unaffected by increasing organic matter, and compared favourably with equivalent concentrations of NaClO and ClO2. EOW at 20 mg/L free chlorine was more effective than NaClO and ClO2 in reducing bacterial populations in the presence of high (20-100 mg/L) dissolved organic carbon, and no regrowth or metabolic activity was observed for EOW-treated bacteria at this concentration upon reculturing in rich media. Thus, EOW is as effective or more effective than other common chlorine-based sanitizers for pathogen reduction in contaminated water. EOW's other characteristics, such as neutral pH and ease of handling, indicate its suitability for fresh produce sanitation.
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Affiliation(s)
- Abiodun D Ogunniyi
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia.
| | - Catherine E Dandie
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Sergio Ferro
- Ecas4 Australia Pty Ltd, 8/1 London Road, Mile End South, South Australia, Australia
| | - Barbara Hall
- Plant Health and Biosecurity, SARDI, Adelaide, South Australia, Australia
| | - Barbara Drigo
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Gianluca Brunetti
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Henrietta Venter
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Baden Myers
- Natural and Built Environments Research Centre, School of Natural and Built Environments, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Permal Deo
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Erica Donner
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Enzo Lombi
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia
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28
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Asif MB, Ansari AJ, Chen SS, Nghiem LD, Price WE, Hai FI. Understanding the mechanisms of trace organic contaminant removal by high retention membrane bioreactors: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:34085-34100. [PMID: 30259242 DOI: 10.1007/s11356-018-3256-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 09/14/2018] [Indexed: 06/08/2023]
Abstract
High retention membrane bioreactors (HR-MBR) combine a high retention membrane separation process such as membrane distillation, forward osmosis, or nanofiltration with a conventional activated sludge (CAS) process. Depending on the physicochemical properties of the trace organic contaminants (TrOCs) as well as the selected high retention membrane process, HR-MBR can achieve effective removal (80-99%) of a broad spectrum of TrOCs. An in-depth assessment of the available literature on HR-MBR performance suggests that compared to CAS and conventional MBRs (using micro- or ultra-filtration membrane), aqueous phase removal of TrOCs in HR-MBR is significantly better. Conceptually, longer retention time may significantly improve TrOC biodegradation, but there are insufficient data in the literature to evaluate the extent of TrOC biodegradation improvement by HR-MBR. The accumulation of hardly biodegradable TrOCs within the bioreactor of an HR-MBR system may complicate further treatment and beneficial reuse of sludge. In addition to TrOCs, accumulation of salts gradually increases the salinity in bioreactor and can adversely affect microbial activities. Strategies to mitigate these limitations are discussed. A qualitative framework is proposed to predict the contribution of the different key mechanisms of TrOC removal (i.e., membrane retention, biodegradation, and sorption) in HR-MBR.
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Affiliation(s)
- Muhammad B Asif
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, New South Wales, 2522, Australia
| | - Ashley J Ansari
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, New South Wales, 2522, Australia
| | - Shiao-Shing Chen
- Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei, 10608, Taiwan
| | - Long D Nghiem
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, New South Wales, 2522, Australia
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, New South Wales, 2007, Australia
| | - William E Price
- Strategic Water Infrastructure Lab, School of Chemistry, University of Wollongong, Wollongong, New South Wales, 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Lab, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, New South Wales, 2522, Australia.
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29
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Shingare RP, Thawale PR, Raghunathan K, Mishra A, Kumar S. Constructed wetland for wastewater reuse: Role and efficiency in removing enteric pathogens. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 246:444-461. [PMID: 31200179 DOI: 10.1016/j.jenvman.2019.05.157] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 05/30/2019] [Accepted: 05/31/2019] [Indexed: 06/09/2023]
Abstract
Water stress has become a perennial concern in most of the developing countries due to rapid urbanization and population growth. As the growing population requires more fresh water and better ways for wastewater disposal, the demand for wastewater reclamation has increased drastically in recent years. Wastewater, either raw or treated, is being widely used for agricultural irrigation in developing countries, which cause a serious threat to human health mainly because of its pathogenic content. One of the alternative methods to treat wastewater and make it reusable for agricultural irrigation is to implement constructed wetland (CW); a sustainable and cost-effective technology that is applicable for the elimination of both pollutants and pathogens from wastewater. Despite its wide application, the role of macrophytes that form an integral part of CW and specific mechanisms involved in pathogen removal by them is still barely understood due to complexities involved and influencing factors. This has, therefore, attracted various scientific studies to reveal further functional mechanisms involved in vegetated CW to increase its proficiencies. This review paper illustrates the comparative studies of different CW and their pathogen removal efficiencies with major emphasis on macrophytes involved and factors influencing related mechanism. Further, the paper also covers detailed information on the enteric pathogens present in wastewater and the associated health risks involved in its reuse. The ultimate objective is to further clarify the role of CW in enteric pathogen removal and its efficiency for wastewater purification in perspective with safe reuse in agriculture.
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Affiliation(s)
- Rita P Shingare
- Environmental Biotechnology and Genomics Division, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad, Uttar Pradesh, 201 002, India.
| | | | - Karthik Raghunathan
- Environmental Biotechnology and Genomics Division, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Apurva Mishra
- Environmental Biotechnology and Genomics Division, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Sunil Kumar
- Technology Development Centre, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur, 440 020, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad, Uttar Pradesh, 201 002, India
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30
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Ng C, Tan B, Jiang XT, Gu X, Chen H, Schmitz BW, Haller L, Charles FR, Zhang T, Gin K. Metagenomic and Resistome Analysis of a Full-Scale Municipal Wastewater Treatment Plant in Singapore Containing Membrane Bioreactors. Front Microbiol 2019; 10:172. [PMID: 30833934 PMCID: PMC6387931 DOI: 10.3389/fmicb.2019.00172] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 01/22/2019] [Indexed: 11/23/2022] Open
Abstract
Reclaimed water provides a water supply alternative to address problems of scarcity in urbanized cities with high living densities and limited natural water resources. In this study, wastewater metagenomes from 6 stages of a wastewater treatment plant (WWTP) integrating conventional and membrane bioreactor (MBR) treatment were evaluated for diversity of antibiotic resistance genes (ARGs) and bacteria, and relative abundance of class 1 integron integrases (intl1). ARGs confering resistance to 12 classes of antibiotics (ARG types) persisted through the treatment stages, which included genes that confer resistance to aminoglycoside [aadA, aph(6)-I, aph(3')-I, aac(6')-I, aac(6')-II, ant(2″)-I], beta-lactams [class A, class C, class D beta-lactamases (bla OXA)], chloramphenicol (acetyltransferase, exporters, floR, cmIA), fosmidomycin (rosAB), macrolide-lincosamide-streptogramin (macAB, ereA, ermFB), multidrug resistance (subunits of transporters), polymyxin (arnA), quinolone (qnrS), rifamycin (arr), sulfonamide (sul1, sul2), and tetracycline (tetM, tetG, tetE, tet36, tet39, tetR, tet43, tetQ, tetX). Although the ARG subtypes in sludge and MBR effluents reduced in diversity relative to the influent, clinically relevant beta lactamases (i.e., bla KPC, bla OXA) were detected, casting light on other potential point sources of ARG dissemination within the wastewater treatment process. To gain a deeper insight into the types of bacteria that may survive the MBR removal process, genome bins were recovered from metagenomic data of MBR effluents. A total of 101 close to complete draft genomes were assembled and annotated to reveal a variety of bacteria bearing metal resistance genes and ARGs in the MBR effluent. Three bins in particular were affiliated to Mycobacterium smegmatis, Acinetobacter Iwoffii, and Flavobacterium psychrophila, and carried aquired ARGs aac(2')-Ib, bla OXA-278, and tet36 respectively. In terms of indicator organisms, cumulative log removal values (LRV) of Escherichia coli, Enterococci, and P. aeruginosa from influent to conventional treated effluent was lower (0-2.4), compared to MBR effluent (5.3-7.4). We conclude that MBR is an effective treatment method for reducing fecal indicators and ARGs; however, incomplete removal of P. aeruginosa in MBR treated effluents (<8 MPN/100 mL) and the presence of ARGs and intl1 underscores the need to establish if further treatment should be applied prior to reuse.
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Affiliation(s)
- Charmaine Ng
- Department of Surgery, National University of Singapore, Singapore, Singapore
| | - Boonfei Tan
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada
| | - Xiao-Tao Jiang
- Environmental Biotechnology Lab, Department of Civil and Environmental Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Xiaoqiong Gu
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore, Singapore
| | - Hongjie Chen
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore, Singapore
| | - Bradley William Schmitz
- JHU/Stantec Alliance, Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Laurence Haller
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore, Singapore
| | - Francis Rathinam Charles
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore, Singapore
| | - Tong Zhang
- Environmental Biotechnology Lab, Department of Civil and Environmental Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Karina Gin
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore, Singapore
- NUS Environmental Research Institute, Singapore, Singapore
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31
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Whitton R, Fane S, Jarvis P, Tupper M, Raffin M, Coulon F, Nocker A. Flow cytometry-based evaluation of the bacterial removal efficiency of a blackwater reuse treatment plant and the microbiological changes in the associated non-potable distribution network. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:1620-1629. [PMID: 30248879 DOI: 10.1016/j.scitotenv.2018.07.121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 06/10/2018] [Accepted: 07/10/2018] [Indexed: 06/08/2023]
Abstract
The study evaluated the changes in bacterial numbers across a full-scale membrane bioreactor (MBR) blackwater reuse system. Flow cytometry was used to quantify total and intact bacterial concentrations across the treatment train and during distribution of the recycled water. Membrane passage reduced bacterial numbers by up to 5-log units resulting in coliform-free permeate. A 2-log increase in bacterial cell concentration was subsequently observed after the granular activated carbon unit followed by a reduction in intact cells after chlorination, which corresponds to an overall intact bacteria removal of 3.4-log units. In the distribution network, the proportion of intact cells greatly depended on the free chlorine residual, with decreasing residual enabling regrowth. An initial target of 0.5 mg L-1 free chlorine ensured sufficient suppression of intact cells for up to 14 days (setting the time intervals for system flushes at times of low water usage). Bacterial regrowth was only observed when the free chlorine concentration was below 0.34 mg L-1. Such loss of residual chlorine mainly applied to distant points in the distribution network from the blackwater reuse treatment plant (BRTP). Flushing these network points for 5 min did not substantially reduce cell numbers. At points closer to the BRTP, on the other hand, flushing reduced cell numbers by up to 1.5-log units concomitant with a decreasing proportion of intact cells. Intact cell concentrations did not correlate with DOC, total nitrogen, or soluble reactive phosphate, but it was shown that dead biomass could be efficiently converted into new biomass within seven days.
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Affiliation(s)
- Rachel Whitton
- School of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, United Kingdom
| | - Sarah Fane
- School of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, United Kingdom
| | - Peter Jarvis
- School of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, United Kingdom
| | - Martyn Tupper
- Thames Water Utilities Ltd, Clearwater Court, Vastern Road, Reading, Berkshire RG1 8DB, United Kingdom
| | - Marie Raffin
- Thames Water Utilities Ltd, Clearwater Court, Vastern Road, Reading, Berkshire RG1 8DB, United Kingdom
| | - Frédéric Coulon
- School of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, United Kingdom
| | - Andreas Nocker
- School of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, United Kingdom; IWW Water Centre, Moritzstraße 26, 45476 Mülheim an der Ruhr, Germany.
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32
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Virus reduction through microfiltration membranes modified with a cationic polymer for drinking water applications. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.056] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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33
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Alloul A, Ganigué R, Spiller M, Meerburg F, Cagnetta C, Rabaey K, Vlaeminck SE. Capture-Ferment-Upgrade: A Three-Step Approach for the Valorization of Sewage Organics as Commodities. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:6729-6742. [PMID: 29772177 DOI: 10.1021/acs.est.7b05712] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
This critical review outlines a roadmap for the conversion of chemical oxygen demand (COD) contained in sewage to commodities based on three-steps: capture COD as sludge, ferment it to volatile fatty acids (VFA), and upgrade VFA to products. The article analyzes the state-of-the-art of this three-step approach and discusses the bottlenecks and challenges. The potential of this approach is illustrated for the European Union's 28 member states (EU-28) through Monte Carlo simulations. High-rate contact stabilization captures the highest amount of COD (66-86 g COD person equivalent-1 day-1 in 60% of the iterations). Combined with thermal hydrolysis, this would lead to a VFA-yield of 23-44 g COD person equivalent-1 day-1. Upgrading VFA generated by the EU-28 would allow, in 60% of the simulations, for a yearly production of 0.2-2.0 megatonnes of esters, 0.7-1.4 megatonnes of polyhydroxyalkanoates or 0.6-2.2 megatonnes of microbial protein substituting, respectively, 20-273%, 70-140% or 21-72% of their global counterparts (i.e., petrochemical-based esters, bioplastics or fishmeal). From these flows, we conclude that sewage has a strong potential as biorefinery feedstock, although research is needed to enhance capture, fermentation and upgrading efficiencies. These developments need to be supported by economic/environmental analyses and policies that incentivize a more sustainable management of our resources.
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Affiliation(s)
- Abbas Alloul
- Research Group of Sustainable Energy, Air and Water Technology, Department of Bioscience Engineering , University of Antwerp , Groenenborgerlaan 171 , 2020 Antwerpen , Belgium
| | - Ramon Ganigué
- Center for Microbial Ecology and Technology (CMET) , Ghent University , Coupure Links 653 , 9000 Gent , Belgium
| | - Marc Spiller
- Research Group of Sustainable Energy, Air and Water Technology, Department of Bioscience Engineering , University of Antwerp , Groenenborgerlaan 171 , 2020 Antwerpen , Belgium
| | - Francis Meerburg
- Center for Microbial Ecology and Technology (CMET) , Ghent University , Coupure Links 653 , 9000 Gent , Belgium
| | - Cristina Cagnetta
- Center for Microbial Ecology and Technology (CMET) , Ghent University , Coupure Links 653 , 9000 Gent , Belgium
| | - Korneel Rabaey
- Center for Microbial Ecology and Technology (CMET) , Ghent University , Coupure Links 653 , 9000 Gent , Belgium
| | - Siegfried E Vlaeminck
- Research Group of Sustainable Energy, Air and Water Technology, Department of Bioscience Engineering , University of Antwerp , Groenenborgerlaan 171 , 2020 Antwerpen , Belgium
- Center for Microbial Ecology and Technology (CMET) , Ghent University , Coupure Links 653 , 9000 Gent , Belgium
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Lizasoain A, Tort L, García M, Gillman L, Alberti A, Leite J, Miagostovich M, Pou S, Cagiao A, Razsap A, Huertas J, Berois M, Victoria M, Colina R. Human enteric viruses in a wastewater treatment plant: evaluation of activated sludge combined with UV disinfection process reveals different removal performances for viruses with different features. Lett Appl Microbiol 2018; 66:215-221. [DOI: 10.1111/lam.12839] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 12/13/2017] [Accepted: 12/18/2017] [Indexed: 12/15/2022]
Affiliation(s)
- A. Lizasoain
- Laboratorio de Virología Molecular; CENUR Litoral Norte; Sede Salto Uruguay
- Universidad de la República; Salto Uruguay
| | - L.F.L. Tort
- Laboratorio de Virología Molecular; CENUR Litoral Norte; Sede Salto Uruguay
- Universidad de la República; Salto Uruguay
| | - M. García
- Laboratorio de Virología Molecular; CENUR Litoral Norte; Sede Salto Uruguay
- Universidad de la República; Salto Uruguay
| | - L. Gillman
- Sección Virología; Facultad de Ciencias; Universidad de la República; Montevideo Uruguay
| | - A. Alberti
- Sección Virología; Facultad de Ciencias; Universidad de la República; Montevideo Uruguay
| | - J.P.G. Leite
- Laboratório de Virologia Comparada e Ambiental; Instituto Oswaldo Cruz; Fundação Oswaldo Cruz Rio de Janeiro Brasil
| | - M.P. Miagostovich
- Laboratório de Virologia Comparada e Ambiental; Instituto Oswaldo Cruz; Fundação Oswaldo Cruz Rio de Janeiro Brasil
| | - S.A. Pou
- Instituto de Investigaciones en Ciencias de la Salud; Facultad de Ciencias Médicas; CONICET; Universidad Nacional de Córdoba; Córdoba Argentina
| | - A. Cagiao
- Obras Sanitarias del Estado; Montevideo Uruguay
| | - A. Razsap
- Obras Sanitarias del Estado; Montevideo Uruguay
| | - J. Huertas
- Obras Sanitarias del Estado; Montevideo Uruguay
| | - M. Berois
- Sección Virología; Facultad de Ciencias; Universidad de la República; Montevideo Uruguay
| | - M. Victoria
- Laboratorio de Virología Molecular; CENUR Litoral Norte; Sede Salto Uruguay
- Universidad de la República; Salto Uruguay
| | - R. Colina
- Laboratorio de Virología Molecular; CENUR Litoral Norte; Sede Salto Uruguay
- Universidad de la República; Salto Uruguay
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Overview of the Main Disinfection Processes for Wastewater and Drinking Water Treatment Plants. SUSTAINABILITY 2017. [DOI: 10.3390/su10010086] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zazouli MA, Kalankesh LR. Removal of precursors and disinfection by-products (DBPs) by membrane filtration from water; a review. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2017; 15:25. [PMID: 29234499 PMCID: PMC5721515 DOI: 10.1186/s40201-017-0285-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 10/30/2017] [Indexed: 05/23/2023]
Abstract
Disinfection by-products (DBPs) have heterogeneous structures which are suspected carcinogens as a result of reactions between NOMs (Natural Organic Matter) and oxidants/disinfectants such as chlorine. Because of variability in DBPs characteristics, eliminate completely from drinking water by single technique is impossible. The current article reviews removal of the precursors and DBPs by different membrane filtration methods such as Microfiltration (MF), Ultrafiltration (UF), Nanofiltration (NF) and Reverse Osmosis (RO) techniques. Also, we provide an overview of existing and potentially Membrane filtration techniques, highlight their strengths and drawbacks. MF membranes are a suitable alternative to remove suspended solids and colloidal materials. However, NOMs fractions are effectively removed by negatively charged UF membrane. RO can remove both organic and inorganic DBPs and precursors simultaneously. NF can be used to remove compounds from macromolecular size to multivalent ions.
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Affiliation(s)
- Mohammad Ali Zazouli
- Department of Environmental Health Engineering, Health Sciences Research Center, Faculty of Health, Mazandaran University of Medical Sciences, Sari, Iran
| | - Laleh R. Kalankesh
- PhD student of Health Science, Student Research Committee, Department of Environmental Health Science, Health Sciences Research Center, School of Public Health, Mazandaran University of Medical Sciences, Sari, Iran
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Gassie LW, Englehardt JD. Advanced oxidation and disinfection processes for onsite net-zero greywater reuse: A review. WATER RESEARCH 2017; 125:384-399. [PMID: 28892768 DOI: 10.1016/j.watres.2017.08.062] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 08/16/2017] [Accepted: 08/28/2017] [Indexed: 05/05/2023]
Abstract
Net-zero greywater (NZGW) reuse, or nearly closed-loop recycle of greywater for all original uses, can recover both water and its attendant hot-water thermal energy, while avoiding the installation and maintenance of a separate greywater sewer in residential areas. Such a system, if portable, could also provide wash water for remote emergency health care units. However, such greywater reuse engenders human contact with the recycled water, and hence superior treatment. The purpose of this paper is to review processes applicable to the mineralization of organics, including control of oxidative byproducts such as bromate, and maintenance of disinfection consistent with potable reuse guidelines, in NZGW systems. Specifically, TiO2-UV, UV-hydrogen peroxide, hydrogen peroxide-ozone, ozone-UV advanced oxidation processes, and UV, ozone, hydrogen peroxide, filtration, and chlorine disinfection processes were reviewed for performance, energy demand, environmental impact, and operational simplicity. Based on the literature reviewed, peroxone is the most energy-efficient process for organics mineralization. However, in portable applications where delivery of chemicals to the site is a concern, the UV-ozone process appears promising, at higher energy demand. In either case, reverse osmosis, nanofiltration, or ED may be useful in controlling the bromide precursor in make-up water, and a minor side-stream of ozone may be used to prevent microbial regrowth in the treated water. Where energy is not paramount, UV-hydrogen peroxide and UV-TiO2 can be used to mineralize organics while avoiding bromate formation, but may require a secondary process to prevent microbial regrowth. Chlorine and ozone may be useful for maintenance of disinfection residual.
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Affiliation(s)
- Lucien W Gassie
- University of Miami, 1251 Memorial Drive, Coral Gables, FL 33146, USA.
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Ezenarro JJ, Uria N, Castillo-Fernández Ó, Párraga N, Sabrià M, Muñoz Pascual FX. Development of an integrated method of concentration and immunodetection of bacteria. Anal Bioanal Chem 2017; 410:105-113. [PMID: 29063163 DOI: 10.1007/s00216-017-0695-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 09/07/2017] [Accepted: 10/06/2017] [Indexed: 11/27/2022]
Abstract
The microbial quality of water is a key aspect to avoid environmental and public health problems. The low pathogen concentration needed to produce a disease outbreak makes it essential to process large water volumes and use sensitive and specific methods such as immunoassays for its detection. In the present work, we describe the development of a device based on microfiltration membranes to integrate the concentration and the immunodetection of waterborne bacteria. A microfiltration membrane treatment protocol was designed to reduce the non-specific binding of antibodies, for which different blocking agents were tested. Thus, the proof of concept of the microbial detection system was also carried out using Escherichia coli as the bacterial pathogen model. E. coli suspensions were filtered through the membranes at 0.5 mL s-1, and the E. coli concentration measurements were made by absorbance, at 620 nm, of the resultant product of the enzymatic reaction among the horseradish peroxidase (HRP) bonded to the antibody, and the substrate 3,3',5,5'-tetramethylbenzidine (TMB). The results showed that the homemade concentration system together with the developed membrane treatment protocol is able to detect E. coli cells with a limit of detection (LoD) of about 100 CFU in 100 mL. Graphical abstract Scheme of the integrated method of concentration and immunodetection of bacteria.
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Affiliation(s)
- Josune J Ezenarro
- Institut de Microelectrònica de Barcelona, CNM-CSIC, Esfera UAB-CEI, Campus UAB, 08193, Bellaterra, Spain.
| | - Naroa Uria
- Institut de Microelectrònica de Barcelona, CNM-CSIC, Esfera UAB-CEI, Campus UAB, 08193, Bellaterra, Spain
| | - Óscar Castillo-Fernández
- Institut de Microelectrònica de Barcelona, CNM-CSIC, Esfera UAB-CEI, Campus UAB, 08193, Bellaterra, Spain
| | - Noemí Párraga
- Unitat de Malalties Infeccioses, Fundació Institut d'Investigació Germans Trias I Pujol, 08916, Badalona, Spain
- CIBER de Enfermedades Respiratorias, 28029, Madrid, Spain
| | - Miquel Sabrià
- CIBER de Enfermedades Respiratorias, 28029, Madrid, Spain
- Universitat Autònoma de Barcelona, 08193, Cerdanyola, Spain
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Halouane F, Jijie R, Meziane D, Li C, Singh SK, Bouckaert J, Jurazek J, Kurungot S, Barras A, Li M, Boukherroub R, Szunerits S. Selective isolation and eradication of E. coli associated with urinary tract infections using anti-fimbrial modified magnetic reduced graphene oxide nanoheaters. J Mater Chem B 2017; 5:8133-8142. [PMID: 32264652 DOI: 10.1039/c7tb01890h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The fast and efficient elimination of pathogenic bacteria from water, food or biological samples such as blood remains a challenging task. Magnetic isolation of bacteria from complex media holds particular promise for water disinfection and other biotechnological applications employing bacteria. When it comes to infectious diseases such as urinary tract infections, the selective removal of the pathogenic species in complex media such as human serum is also of importance. This issue can only be accomplished by adding pathogen specific targeting sites onto the magnetic nanostructures. In this work, we investigate the potential of 2-nitrodopamine modified magnetic particles anchored on reduced graphene oxide (rGO) nanocomposites for rapid capture and efficient elimination of E. coli associated with urinary tract infections (UTIs) from water and serum samples. An optimized magnetic nanocarrier achieves a 99.9% capture efficiency even at E. coli concentrations of 1 × 101 cfu mL-1 in 30 min. In addition, functionalization of the nanostructures with poly(ethylene glycol) modified pyrene units and anti-fimbrial E. coli antibodies allowed specific elimination of E. coli UTI89 from serum samples. Irradiation of the E. coli loaded nanocomposite with a near-infrared laser results in the total ablation of the captured pathogens. This method can be flexibly modified for any other pathogenic bacteria, depending on the antibodies used, and might be an interesting alternative material for a magnetic-based body fluid purification approach.
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Affiliation(s)
- Fatima Halouane
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520-IEMN, F-59000 Lille, France.
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Abstract
Broad and increasing interest in sustainable wastewater treatment has led a paradigm shift towards more efficient means of treatment system operation. A key aspect of improving overall sustainability is the potential for direct wastewater effluent reuse. Anaerobic membrane bioreactors (AnMBRs) have been identified as an attractive option for producing high quality and nutrient-rich effluents during the treatment of municipal wastewaters. The introduction of direct effluent reuse does, however, raise several safety concerns related to its application. Among those concerns are the microbial threats associated with pathogenic bacteria as well as the emerging issues associated with antibiotic-resistant bacteria and the potential for proliferation of antibiotic resistance genes. Although there is substantial research evaluating these topics from the perspectives of anaerobic digestion and membrane bioreactors separately, little is known regarding how AnMBR systems can contribute to pathogen and antibiotic resistance removal and propagation in wastewater effluents. The aim of this review is to provide a current assessment of existing literature on anaerobic and membrane-based treatment systems as they relate to these microbial safety issues and utilize this assessment to identify areas of potential future research to evaluate the suitability of AnMBRs for direct effluent reuse.
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Shin S, Shardt O, Warren PB, Stone HA. Membraneless water filtration using CO 2. Nat Commun 2017; 8:15181. [PMID: 28462929 PMCID: PMC5418569 DOI: 10.1038/ncomms15181] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 03/07/2017] [Indexed: 11/13/2022] Open
Abstract
Water purification technologies such as microfiltration/ultrafiltration and reverse osmosis utilize porous membranes to remove suspended particles and solutes. These membranes, however, cause many drawbacks such as a high pumping cost and a need for periodic replacement due to fouling. Here we show an alternative membraneless method for separating suspended particles by exposing the colloidal suspension to CO2. Dissolution of CO2 into the suspension creates solute gradients that drive phoretic motion of particles. Due to the large diffusion potential generated by the dissociation of carbonic acid, colloidal particles move either away from or towards the gas–liquid interface depending on their surface charge. Using the directed motion of particles induced by exposure to CO2, we demonstrate a scalable, continuous flow, membraneless particle filtration process that exhibits low energy consumption, three orders of magnitude lower than conventional microfiltration/ultrafiltration processes, and is essentially free from fouling. Water treatment processes mostly rely on the use of membranes and filters, which have high pumping costs and require periodic replacement. Here, the authors describe an efficient membraneless method that induces directed motion of suspended colloidal particles by exposing the suspension to CO2.
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Affiliation(s)
- Sangwoo Shin
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA
| | - Orest Shardt
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA
| | | | - Howard A Stone
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA
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Harb M, Hong PY. Molecular-based detection of potentially pathogenic bacteria in membrane bioreactor (MBR) systems treating municipal wastewater: a case study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:5370-5380. [PMID: 28013467 PMCID: PMC5352760 DOI: 10.1007/s11356-016-8211-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 12/05/2016] [Indexed: 05/23/2023]
Abstract
Although membrane bioreactor (MBR) systems provide better removal of pathogens compared to conventional activated sludge processes, they do not achieve total log removal. The present study examines two MBR systems treating municipal wastewater, one a full-scale MBR plant and the other a lab-scale anaerobic MBR. Both of these systems were operated using microfiltration (MF) polymeric membranes. High-throughput sequencing and digital PCR quantification were utilized to monitor the log removal values (LRVs) of associated pathogenic species and their abundance in the MBR effluents. Results showed that specific removal rates vary widely regardless of the system employed. Each of the two MBR effluents' microbial communities contained genera associated with opportunistic pathogens (e.g., Pseudomonas, Acinetobacter) with a wide range of log reduction values (< 2 to >5.5). Digital PCR further confirmed that these bacterial groups included pathogenic species, in several instances at LRVs different than those for their respective genera. These results were used to evaluate the potential risks associated both with the reuse of the MBR effluents for irrigation purposes and with land application of the activated sludge from the full-scale MBR system.
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Affiliation(s)
- Moustapha Harb
- Water Desalination and Reuse Center, Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), 4700 King Abdullah Boulevard, Thuwal, 23955-6900, Saudi Arabia
| | - Pei-Ying Hong
- Water Desalination and Reuse Center, Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), 4700 King Abdullah Boulevard, Thuwal, 23955-6900, Saudi Arabia.
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Schmitz BW, Kitajima M, Campillo ME, Gerba CP, Pepper IL. Virus Reduction during Advanced Bardenpho and Conventional Wastewater Treatment Processes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:9524-32. [PMID: 27447291 DOI: 10.1021/acs.est.6b01384] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The present study investigated wastewater treatment for the removal of 11 different virus types (pepper mild mottle virus; Aichi virus; genogroup I, II, and IV noroviruses; enterovirus; sapovirus; group-A rotavirus; adenovirus; and JC and BK polyomaviruses) by two wastewater treatment facilities utilizing advanced Bardenpho technology and compared the results with conventional treatment processes. To our knowledge, this is the first study comparing full-scale treatment processes that all received sewage influent from the same region. The incidence of viruses in wastewater was assessed with respect to absolute abundance, occurrence, and reduction in monthly samples collected throughout a 12 month period in southern Arizona. Samples were concentrated via an electronegative filter method and quantified using TaqMan-based quantitative polymerase chain reaction (qPCR). Results suggest that Plant D, utilizing an advanced Bardenpho process as secondary treatment, effectively reduced pathogenic viruses better than facilities using conventional processes. However, the absence of cell-culture assays did not allow an accurate assessment of infective viruses. On the basis of these data, the Aichi virus is suggested as a conservative viral marker for adequate wastewater treatment, as it most often showed the best correlation coefficients to viral pathogens, was always detected at higher concentrations, and may overestimate the potential virus risk.
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Affiliation(s)
- Bradley W Schmitz
- Water and Energy Sustainable Technology (WEST) Center, The University of Arizona , 2959 West Calle Agua Nueva, Tucson, Arizona 85745, United States
| | - Masaaki Kitajima
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University , Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Maria E Campillo
- Water and Energy Sustainable Technology (WEST) Center, The University of Arizona , 2959 West Calle Agua Nueva, Tucson, Arizona 85745, United States
| | - Charles P Gerba
- Water and Energy Sustainable Technology (WEST) Center, The University of Arizona , 2959 West Calle Agua Nueva, Tucson, Arizona 85745, United States
| | - Ian L Pepper
- Water and Energy Sustainable Technology (WEST) Center, The University of Arizona , 2959 West Calle Agua Nueva, Tucson, Arizona 85745, United States
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Purnell S, Ebdon J, Buck A, Tupper M, Taylor H. Removal of phages and viral pathogens in a full-scale MBR: Implications for wastewater reuse and potable water. WATER RESEARCH 2016; 100:20-27. [PMID: 27176650 DOI: 10.1016/j.watres.2016.05.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 04/11/2016] [Accepted: 05/03/2016] [Indexed: 05/03/2023]
Abstract
The aim of this study was to demonstrate how seasonal variability in the removal efficacy of enteric viral pathogens from an MBR-based water recycling system might affect risks to human health if the treated product were to be used for the augmentation of potable water supplies. Samples were taken over a twelve month period (March 2014-February 2015), from nine locations throughout a water recycling plant situated in East London and tested for faecal indicator bacteria (thermotolerant coliforms, intestinal enterococci n = 108), phages (somatic coliphage, F-specific RNA phage and Bacteroides phage (GB-124) n = 108), pathogenic viruses (adenovirus, hepatitis A, norovirus GI/GII n = 48) and a range of physico-chemical parameters (suspended solids, DO, BOD, COD). Thermotolerant coliforms and intestinal enterococci were removed effectively by the water recycling plant throughout the study period. Significant mean log reductions of 3.9-5.6 were also observed for all three phage groups monitored. Concentrations of bacteria and phages did not vary significantly according to season (P < 0.05; Kruskal-Wallis), though recorded levels of norovirus (GI) were significantly higher during autumn/winter months (P = 0.027; Kruskal-Wallis). Log reduction values for norovirus and adenovirus following MBR treatment were 2.3 and 4.4, respectively. However, both adenovirus and norovirus were detected at low levels (2000 and 3240 gene copies/L, respectively) post chlorination in single samples. Whilst phage concentrations did correlate with viral pathogens, the results of this study suggest that phages may not be suitable surrogates, as viral pathogen concentrations varied to a greater degree seasonally than did the phage indicators and were detected on a number of occasions on which phages were not detected (false negative sample results).
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Affiliation(s)
- Sarah Purnell
- Environment and Public Health Research Group, Aquatic Research Centre, School of Environment and Technology, University of Brighton, Cockcroft Building, Lewes Road, Brighton, BN2 4GJ, United Kingdom.
| | - James Ebdon
- Environment and Public Health Research Group, Aquatic Research Centre, School of Environment and Technology, University of Brighton, Cockcroft Building, Lewes Road, Brighton, BN2 4GJ, United Kingdom
| | - Austen Buck
- Environment and Public Health Research Group, Aquatic Research Centre, School of Environment and Technology, University of Brighton, Cockcroft Building, Lewes Road, Brighton, BN2 4GJ, United Kingdom
| | - Martyn Tupper
- Thames Water Utilities Limited, Clearwater Court, Vastern Road, Reading, Berkshire RG1 8DB, United Kingdom
| | - Huw Taylor
- Environment and Public Health Research Group, Aquatic Research Centre, School of Environment and Technology, University of Brighton, Cockcroft Building, Lewes Road, Brighton, BN2 4GJ, United Kingdom
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Semblante GU, Hai FI, Huang X, Ball AS, Price WE, Nghiem LD. Trace organic contaminants in biosolids: Impact of conventional wastewater and sludge processing technologies and emerging alternatives. JOURNAL OF HAZARDOUS MATERIALS 2015; 300:1-17. [PMID: 26151380 DOI: 10.1016/j.jhazmat.2015.06.037] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 06/10/2015] [Accepted: 06/19/2015] [Indexed: 06/04/2023]
Abstract
This paper critically reviews the fate of trace organic contaminants (TrOCs) in biosolids, with emphasis on identifying operation conditions that impact the accumulation of TrOCs in sludge during conventional wastewater and sludge treatment and assessing the technologies available for TrOC removal from biosolids. The fate of TrOCs during sludge thickening, stabilisation (e.g. aerobic digestion, anaerobic digestion, alkaline stabilisation, and composting), conditioning, and dewatering is elucidated. Operation pH, sludge retention time (SRT), and temperature have significant impact on the sorption and biodegradation of TrOCs in activated sludge that ends up in the sludge treatment line. Anaerobic digestion may exacerbate the estrogenicity of sludge due to bioconversion to more potent metabolites. Application of advanced oxidation or thermal pre-treatment may minimise TrOCs in biosolids by increasing the bioavailability of TrOCs, converting TrOCs into more biodegradable products, or inducing complete mineralisation of TrOCs. Treatment of sludge by bioaugmentation using various bacteria, yeast, or fungus has the potential to reduce TrOC levels in biosolids.
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Affiliation(s)
- Galilee U Semblante
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
| | - Xia Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Andrew S Ball
- School of Applied Sciences, RMIT University, Bundoora 3083, Australia
| | - William E Price
- Strategic Water Infrastructure Laboratory, School of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Long D Nghiem
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
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