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Dhanda N, Kumar S. Water disinfection and disinfection by products. ENVIRONMENTAL MONITORING AND ASSESSMENT 2025; 197:461. [PMID: 40128505 DOI: 10.1007/s10661-025-13915-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2024] [Accepted: 03/17/2025] [Indexed: 03/26/2025]
Abstract
For ecological safety and public health, it is essential to identify the causes of pollution in water sources and the effects of both natural and human activities. A class of secondary pollutants known as disinfection byproducts (DBPs) is produced when water is treated with disinfectant. Global problems include DBP formation, monitoring, and health effects in drinkable water. Because of the negative health effects of drinking chlorinated water and some DBPs, water manufacturers have made an attempt to balance pathogen elimination with DBP monitoring. The primary obstacles to managing DBPs are their low concentrations and the viability of their extensive use from a technical and economic perspective. Adsorption on activated carbons, ion exchange, membrane processes, and reducing precursors like NOMs are some of the techniques that may be used in controlling DBPs. The application of both new and conventional disinfection technologies in the removal of ARB and ARGs is also summarized in this review, with an emphasis on bacterial inactivation mechanisms like ozonation, chlorination, ultraviolet (UV), sunlight, sunlight-dissolved organic matter (DOM), and photocatalysis/photoelectrocatalysis (PEC).
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Affiliation(s)
- Nishu Dhanda
- Department of Chemistry, Banasthali Vidyapith, Banasthali, 304022, India
| | - Sudesh Kumar
- DESM, National Institute of Education, NCERT, New Delhi, 110016, India.
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2
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Yang H, He D, Fan L, Cheng F, Zhou Y, Lei Y, Zhang YN, Yang X, Qu J. Evaluating the Impact of Cl 2•- Generation on Antibiotic-Resistance Contamination Removal via UV/Peroxydisulfate. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5578-5588. [PMID: 38477971 DOI: 10.1021/acs.est.3c09952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
The removal of antibiotic-resistant bacteria (ARB) and antibiotic-resistance genes (ARGs) using sulfate anion radical (SO4•-)-based advanced oxidation processes has gained considerable attention recently. However, immense uncertainties persist in technology transfer. Particularly, the impact of dichlorine radical (Cl2•-) generation during SO4•--mediated disinfection on ARB/ARGs removal remains unclear, despite the Cl2•- concentration reaching levels notably higher than those of SO4•- in certain SO4•--based procedures applied to secondary effluents, hospital wastewaters, and marine waters. The experimental results of this study reveal a detrimental effect on the disinfection efficiency of tetracycline-resistant Escherichia coli (Tc-ARB) during SO4•--mediated treatment owing to Cl2•- generation. Through a comparative investigation of the distinct inactivation mechanisms of Tc-ARB in the Cl2•-- and SO4•--mediated disinfection processes, encompassing various perspectives, we confirm that Cl2•- is less effective in inducing cellular structural damage, perturbing cellular metabolic activity, disrupting antioxidant enzyme system, damaging genetic material, and inducing the viable but nonculturable state. Consequently, this diminishes the disinfection efficiency of SO4•--mediated treatment owing to Cl2•- generation. Importantly, the results indicate that Cl2•- generation increases the potential risk associated with the dark reactivation of Tc-ARB and the vertical gene transfer process of tetracycline-resistant genes following SO4•--mediated disinfection. This study underscores the undesired role of Cl2•- for ARB/ARGs removal during the SO4•--mediated disinfection process.
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Affiliation(s)
- Hao Yang
- School of Environment, Northeast Normal University, Changchun, Jilin 130117, China
| | - Dongyang He
- School of Environment, Northeast Normal University, Changchun, Jilin 130117, China
| | - Linyi Fan
- School of Environment, Northeast Normal University, Changchun, Jilin 130117, China
| | - Fangyuan Cheng
- School of Environment, Northeast Normal University, Changchun, Jilin 130117, China
| | - Yangjian Zhou
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Yu Lei
- Key Laboratory of Photochemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Beijing 100190, P. R. China
| | - Ya-Nan Zhang
- School of Environment, Northeast Normal University, Changchun, Jilin 130117, China
| | - Xin Yang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Jiao Qu
- School of Environment, Northeast Normal University, Changchun, Jilin 130117, China
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Brillas E, Peralta-Hernández JM. Antibiotic removal from synthetic and real aqueous matrices by peroxymonosulfate-based advanced oxidation processes. A review of recent development. CHEMOSPHERE 2024; 351:141153. [PMID: 38219991 DOI: 10.1016/j.chemosphere.2024.141153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/27/2023] [Accepted: 01/06/2024] [Indexed: 01/16/2024]
Abstract
The widespread use of antibiotics for the treatment of bacteriological diseases causes their accumulation at low concentrations in natural waters. This gives health risks to animals and humans since it can increase the damage of the beneficial bacteria, the control of infectious diseases, and the resistance to bacterial infection. Potent oxidation methods are required to remove these pollutants from water because of their inefficient abatement in municipal wastewater treatment plants. Over the last three years in the period 2021-September 2023, powerful peroxymonosulfate (PMS)-based advanced oxidation processes (AOPs) have been developed to guaranty the effective removal of antibiotics in synthetic and real waters and wastewater. This review presents a comprehensive analysis of the different procedures proposed to activate PMS-producing strong oxidizing agents like sulfate radical (SO4•-), hydroxyl radical (•OH, radical superoxide ion (O2•-), and non-radical singlet oxygen (1O2) at different proportions depending on the experimental conditions. Iron, non-iron transition metals, biochar, and carbonaceous materials catalytic, UVC, photocatalytic, thermal, electrochemical, and other processes for PMS activation are summarized. The fundamentals and characteristics of these procedures are detailed remarking on their oxidation power to remove antibiotics, the influence of operating variables, the production and detection of radical and non-radical oxidizing agents, the effect of added inorganic anions, natural organic matter, and aqueous matrix, and the identification of by-products formed. Finally, the theoretical and experimental analysis of the change of solution toxicity during the PMS-based AOPs are described.
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Affiliation(s)
- Enric Brillas
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain.
| | - Juan M Peralta-Hernández
- Departamento de Química, DCNE, Universidad de Guanajuato, Cerro de La Venada s/n, Pueblito, United States.
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Li J, Wang C, Ma Y, Li K, Mei Y. In situ formation of red/black phosphorus-modified SiO 2@g-C 3N 4 multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants. RSC Adv 2023; 13:13142-13155. [PMID: 37124021 PMCID: PMC10140671 DOI: 10.1039/d3ra01850d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 04/14/2023] [Indexed: 05/02/2023] Open
Abstract
A new heterojunction material BP/RP-g-C3N4/SiO2 was obtained by a one-step ball milling method, and its photocatalytic capacity was researched by the degradation of Rhodamine B (RhB) and ofloxacin (OFL) in simulated sunlight. The construction of an in situ BP/RP heterojunction can achieve perfect interface contact between different semiconductors and effectively promote the separation of photogenerated carriers. The composite material was well characterized, which proved that the multi-heterogeneous structure was prepared. Furthermore, the type II heterojunction was formed between the g-C3N4 and BP/RP interface, playing an important role in the degradation and promoting electron transfer. The degradation effect of BP/RP-g-C3N4/SiO2 on RhB reached 90% after 26 min of simulated solar irradiation, which was 1.8 times that of g-C3N4/SiO2. The degradation of OFL by BP/RP-g-C3N4/SiO2 reached 85.3% after illumination for 50 min, while the degradation of g-C3N4/SiO2 was only 35.4%. The mechanisms were further discussed, and ˙O2 - and h+ were found to be the main active substances to degrade RhB. The catalyst also revealed distinguished stability of catalyst and recyclability, and the degradation effect of RhB can still realize 85% after 4 runs of experiment. Thus, this study provided a novel method for the design and preparation of multi-heterojunction catalysts in the removal of organic pollutants from wastewater.
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Affiliation(s)
- Jiancheng Li
- Faculty of Chemical Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-159 2512 8686
- Yunnan Provience Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Kunming City 650500 China
- The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Provience Kunming City 650500 China
| | - Chi Wang
- Faculty of Chemical Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-159 2512 8686
- Yunnan Provience Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Kunming City 650500 China
- The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Provience Kunming City 650500 China
| | - Yixing Ma
- Faculty of Environmental Science Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-187 8810 3059
| | - Kai Li
- Faculty of Environmental Science Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-187 8810 3059
| | - Yi Mei
- Faculty of Chemical Engineering, Kunming University of Science and Technology Kunming City 650500 China +86-159 2512 8686
- Yunnan Provience Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Kunming City 650500 China
- The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Provience Kunming City 650500 China
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Bhatt A, Dada AC, Prajapati SK, Arora P. Integrating life cycle assessment with quantitative microbial risk assessment for a holistic evaluation of sewage treatment plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 862:160842. [PMID: 36509266 DOI: 10.1016/j.scitotenv.2022.160842] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 11/12/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
An integrated approach was employed in the present study to combine life cycle assessment (LCA) with quantitative microbial risk assessment (QMRA) to assess an existing sewage treatment plant (STP) at Roorkee, India. The midpoint LCA modeling revealed that high electricity consumption (≈ 576 kWh.day-1) contributed to the maximum environmental burdens. The LCA endpoint result of 0.01 disability-adjusted life years per person per year (DALYs pppy) was obtained in terms of the impacts on human health. Further, a QMRA model was developed based on representative sewage pathogens, including E. coli O157:H7, Giardia sp., adenovirus, norovirus, and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The public health risk associated with intake of pathogen-laden aerosols during treated water reuse in sprinkler irrigation was determined. A cumulative health risk of 0.07 DALYs pppy was obtained, where QMRA risks contributed 86 % of the total health impacts. The annual probability of illness per person was highest for adenovirus and norovirus, followed by SARS-CoV-2, E. coli O157:H7 and Giardia sp. Overall, the study provides a methodological framework for an integrated LCA-QMRA assessment which can be applied across any treatment process to identify the hotspots contributing maximum environmental burdens and microbial health risks. Furthermore, the integrated LCA-QMRA approach could support stakeholders in the water industry to select the most suitable wastewater treatment system and establish regulations regarding the safe reuse of treated water.
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Affiliation(s)
- Ankita Bhatt
- Department of Hydro and Renewable Energy, Indian Institute of Technology Roorkee, Uttarakhand, India
| | | | - Sanjeev Kumar Prajapati
- Department of Hydro and Renewable Energy, Indian Institute of Technology Roorkee, Uttarakhand, India
| | - Pratham Arora
- Department of Hydro and Renewable Energy, Indian Institute of Technology Roorkee, Uttarakhand, India.
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6
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New Approach for Designing Wrinkled and Porous ZnO Thin Films for Photocatalytic Applications. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ganesh Kumar P, Kanmani S. Removal of persistent organic pollutants and disinfection of pathogens from secondary treated municipal wastewater using advanced oxidation processes. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:1944-1957. [PMID: 36315087 DOI: 10.2166/wst.2022.308] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
An affordable and sustainable tertiary treatment is imperative to solve the secondary contamination issues related to wastewater reuse. To decontaminate and disinfect the actual secondary treated wastewater, various types of advanced oxidation processes (AOPs) have been studied. The optimization of the oxidant and catalyst is carried out to identify the best-performing system. Under selected experimental conditions, UV/peroxymonosulfate (PMS), O3/PMS, UV/MnO2, O3/MnO2, UV/O3/H2O2, O3/MnO2/H2O2, UV/MnO2/H2O2, and UV/O3/MnO2 has been identified as an efficient treatment option for simultaneous decontamination (>90% COD removal) and disinfection (100% inactivation of the total viable count of bacteria). The techno-economic assessment revealed that UV/MnO2 (23.5 $ kg-1 of COD) UV/O3/MnO2 (37.4 $ kg-1 of COD), UV/H2O2/MnO2 (36.4 $ kg-1 of COD), and O3/MnO2/H2O2 (32.5 $ kg-1 of COD) are comparatively low-cost treatment processes. Overall, UV/MnO2, UV/H2O2/MnO2, and O3/MnO2/H2O2 are the three best treatments. Nevertheless, further investigation on by-product and catalyst toxicity/recovery is needed. The results showed that AOPs are a technologically feasible treatment for simultaneously removing persistent organic pollutants and pathogens from secondary treated wastewater.
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Affiliation(s)
- P Ganesh Kumar
- Department of Civil Engineering, Centre for Environmental Studies, Anna University, Chennai 600025, India E-mail:
| | - S Kanmani
- Department of Civil Engineering, Centre for Environmental Studies, Anna University, Chennai 600025, India E-mail:
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Zhang S, Li X, Huang M, Shan M, Chen J, Hao F, Li J, Luan J, Zhang W, Liang F. Preparation of a Bi
2
MoO
6
/Bi
2
Sn
2
O
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Composite Photocatalyst and Its Photocatalytic Performance and Toxicity Test. ChemistrySelect 2022. [DOI: 10.1002/slct.202200969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shichuan Zhang
- School of Life Science and Technology Changchun University of Science and Technology, Weixing road 7089 Changchun 130022 P. R. China
| | - Xiulong Li
- School of Life Science and Technology Changchun College of Electronic Technology Xueli road333 Changchun 130022 Jilin Province P. R. China
| | - Meiyi Huang
- School of Life Science and Technology Changchun University of Science and Technology, Weixing road 7089 Changchun 130022 P. R. China
| | - Mengde Shan
- School of Life Science and Technology Changchun University of Science and Technology, Weixing road 7089 Changchun 130022 P. R. China
| | - Jing Chen
- School of Life Science and Technology Changchun University of Science and Technology, Weixing road 7089 Changchun 130022 P. R. China
| | - Fengqi Hao
- School of Life Science and Technology Changchun University of Science and Technology, Weixing road 7089 Changchun 130022 P. R. China
| | - Jingmei Li
- School of Life Science and Technology Changchun University of Science and Technology, Weixing road 7089 Changchun 130022 P. R. China
| | - Jingfei Luan
- School of Physics Changchun Normal University Jilin Road 3291 Changchun 130022 Jilin Province P. R. China
| | - Wei Zhang
- School of Life Science and Technology Changchun University of Science and Technology, Weixing road 7089 Changchun 130022 P. R. China
| | - Fangbin Liang
- Gongzhuling Law Society Lingxi Road 6, Gongzhuling 136100 Jilin Province P. R. China
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Kong L, Shi X. Effect of antibiotic mixtures on the characteristics of soluble microbial products and microbial communities in upflow anaerobic sludge blanket. CHEMOSPHERE 2022; 292:133531. [PMID: 34995635 DOI: 10.1016/j.chemosphere.2022.133531] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/13/2021] [Accepted: 01/02/2022] [Indexed: 06/14/2023]
Abstract
Two upflow anaerobic sludge blanket reactors (UASBs) were used to investigate the effects of three antibiotic mixtures (erythromycin, sulfamethoxazole, and tetracycline) on reactor performance, soluble microbial products (SMPs) composition and microbial community. One reactor (UASBantibiotics) was fed with antibiotic mixtures, whereas another reactor (UASBcontrol) was used as a control without the addition of antibiotic mixtures. Compared with those in UASBcontrol, UASBantibiotics show lower chemical oxygen demand removal efficiency and biogas content. A higher removal efficiency of antibiotic mixtures was obtained in first few stages in UASBantibiotics. The SMPs composition of effluent from the two reactors did not differ significantly, and the main components were protein-like substances, which produced higher fluorescence intensity in UASBantibiotics. Gas chromatography-mass spectrometry analysis revealed that the main compounds identified as SMPs (<580 Da) were alkanes, aromatics and esters, with only 20% similarity of SMPs between UASBantibiotics and UASBcontrol. Antibiotics had a significant effect on the microbial community structure. Notably, in UASBcontrol, hydrogenotrophic methanogens, key microorganisms in anaerobic digestion, had an obvious advantage at all stages compared with UASBantibiotics, whereas acetoclastic methanogen exhibited the opposite pattern. The above results demonstrated that antibiotic mixtures influenced the effluent quality during anaerobic treatment of synthetic wastewater, resulting in changes in the microbial community structure. This study clarified the effect of antibiotic mixtures on the operation of UASBs. It could contribute to identifying potential strategies for improving effluent quality in anaerobic treatment.
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Affiliation(s)
- Lingjiao Kong
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resource and Environmental Engineering, Anhui University, Hefei, 230601, China
| | - Xianyang Shi
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resource and Environmental Engineering, Anhui University, Hefei, 230601, China.
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Herraiz-Carboné M, Cotillas S, Lacasa E, Sainz de Baranda C, Riquelme E, Cañizares P, Rodrigo MA, Sáez C. A review on disinfection technologies for controlling the antibiotic resistance spread. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 797:149150. [PMID: 34303979 DOI: 10.1016/j.scitotenv.2021.149150] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/07/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
The occurrence of antibiotic-resistant bacteria (ARB) in water bodies poses a sanitary and environmental risk. These ARB and other mobile genetic elements can be easily spread from hospital facilities, the point in which, for sure, they are more concentrated. For this reason, novel clean and efficient technologies are being developed for allowing to remove these ARB and other mobile genetic elements before their uncontrolled spread. In this paper, a review on the recent knowledge about the state of the art of the main disinfection technologies to control the antibiotic resistance spread from natural water, wastewater, and hospital wastewater (including urine matrices) is reported. These technologies involve not only conventional processes, but also the recent advances on advanced oxidation processes (AOPs), including electrochemical advanced oxidation processes (EAOPs). This review summarizes the state of the art on the applicability of these technologies and also focuses on the description of the disinfection mechanisms by each technology, highlighting the promising impact of EAOPs on the remediation of this important environmental and health problem.
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Affiliation(s)
- Miguel Herraiz-Carboné
- Department of Chemical Engineering, Higher Technical School of Industrial Engineering, University of Castilla-La Mancha, Edificio Infante Don Juan Manuel, Campus Universitario s/n, 02071 Albacete, Spain
| | - Salvador Cotillas
- Department of Chemical Engineering, Higher Technical School of Industrial Engineering, University of Castilla-La Mancha, Edificio Infante Don Juan Manuel, Campus Universitario s/n, 02071 Albacete, Spain.
| | - Engracia Lacasa
- Department of Chemical Engineering, Higher Technical School of Industrial Engineering, University of Castilla-La Mancha, Edificio Infante Don Juan Manuel, Campus Universitario s/n, 02071 Albacete, Spain.
| | - Caridad Sainz de Baranda
- Clinical Parasitology and Microbiology Area, University Hospital Complex of Albacete, C/Hermanos Falcó 37, 02006 Albacete, Spain
| | - Eva Riquelme
- Clinical Parasitology and Microbiology Area, University Hospital Complex of Albacete, C/Hermanos Falcó 37, 02006 Albacete, Spain
| | - Pablo Cañizares
- Department of Chemical Engineering, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, 13005 Ciudad Real, Spain
| | - Manuel A Rodrigo
- Department of Chemical Engineering, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, 13005 Ciudad Real, Spain
| | - Cristina Sáez
- Department of Chemical Engineering, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, 13005 Ciudad Real, Spain
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V M Starling MC, Mendonça Neto RPD, Pires GFF, Vilela PB, Amorim CC. Combat of antimicrobial resistance in municipal wastewater treatment plant effluent via solar advanced oxidation processes: Achievements and perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 786:147448. [PMID: 33965817 DOI: 10.1016/j.scitotenv.2021.147448] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/11/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
This review aims to gather main achievements and limitations associated to the application of solar photocatalytic processes with regard to the removal of antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) from municipal wastewater treatment plant effluent (MWWTPE). Solar photocatalytic processes were chosen considering the context of developing tropical countries. Among these processes, solar photo-Fenton has been proved effective for the elimination of ARB from MWWTPE at neutral pH in bench and pilot scale and also under continuous flow. Yet, ARG removal varies as according to the gene. Irradiation intensity and matrix composition play a key role on treatment efficiency for this purpose. The use of sulfate radical in modified solar photo-Fenton is still incipient for ARB and ARG removal. Also, investigations related to ARB resistance profile and horizontal gene transfer rates after solar photo-Fenton treatment must be further analyzed. Regarding solar heterogeneous photocatalysis, TiO2 and TiO2-composites applied in suspension are the most commonly investigated for the removal of ARB and ARGs. Irradiation intensity, temperature and catalyst dosage affect treatment efficiency. However, most studies were performed in synthetic solutions using reduced sample volumes. Extended exposition times and addition of H2O2 to the system (solar/TiO2/H2O2) are required to prevent bacteria regrowth and ensure ARG abatement. In addition, enhancement of TiO2 with graphene or (semi)metals improved ARB elimination. Differences concerning irradiation intensity, matrix composition, catalyst dosage, and model ARB and ARGs used in studies analyzed in this review hinder the comparison of photocatalysts synthesized by various research groups. Finally, future research should aim at evaluating the efficiency of solar photocatalytic processes in real matrices originated from sewage treatment systems applied in developing countries; determining indicators of antimicrobial resistance in MWWTPE; and investigating ARB mutation rate as well as the removal of cell-free ARGs present in suspension in MWWTPE.
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Affiliation(s)
- Maria Clara V M Starling
- Universidade Federal de Minas Gerais, Research Group on Environmental Applications of Advanced Oxidation Processes, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil
| | - Rondon P de Mendonça Neto
- Universidade Federal de Minas Gerais, Research Group on Environmental Applications of Advanced Oxidation Processes, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil; Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Bioquímica e Imunologia, Pampulha, Belo Horizonte, MG, Brazil
| | - Giovanna F F Pires
- Universidade Federal de Minas Gerais, Research Group on Environmental Applications of Advanced Oxidation Processes, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil
| | - Pâmela Beccalli Vilela
- Universidade Federal de Minas Gerais, Research Group on Environmental Applications of Advanced Oxidation Processes, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil
| | - Camila C Amorim
- Universidade Federal de Minas Gerais, Research Group on Environmental Applications of Advanced Oxidation Processes, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil.
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UV-C Peroxymonosulfate Activation for Wastewater Regeneration: Simultaneous Inactivation of Pathogens and Degradation of Contaminants of Emerging Concern. Molecules 2021; 26:molecules26164890. [PMID: 34443481 PMCID: PMC8398486 DOI: 10.3390/molecules26164890] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/04/2021] [Accepted: 08/08/2021] [Indexed: 11/16/2022] Open
Abstract
This study explores the capability of Sulfate Radical-based Advanced Oxidation Processes (SR-AOPs) for the simultaneous disinfection and decontamination of urban wastewater. Sulfate and hydroxyl radicals in solution were generated activating peroxymonosulfate (PMS) under UV-C irradiation at pilot plant scale. The efficiency of the process was assessed toward the removal of three CECs (Trimethoprim (TMP), Sulfamethoxazole (SMX), and Diclofenac (DCF)) and three bacteria (Escherichia coli, Enterococcus spp., and Pseudomonas spp.) in actual urban wastewater (UWW), obtaining the optimal value of PMS at 0.5 mmol/L. Under such experimental conditions, bacterial concentration ≤ 10 CFU/100 mL was reached after 15 min of UV-C treatment (0.03 kJ/L of accumulative UV-C radiation) for natural occurring bacteria, no bacterial regrowth was observed after 24 and 48 h, and 80% removal of total CECs was achieved after 12 min (0.03 kJ/L), with a release of sulfate ions far from the limit established in wastewater discharge. Moreover, the inactivation of Ampicillin (AMP), Ciprofloxacin (CPX), and Trimethoprim (TMP) antibiotic-resistant bacteria (ARB) and reduction of target genes (ARGs) were successfully achieved. Finally, a harmful effect toward the receiving aquatic environment was not observed according to Aliivibrio fischeri toxicity tests, while a slightly toxic effect toward plant growth (phytotoxicity tests) was detected. As a conclusion, a cost analysis demonstrated that the process could be feasible and a promising alternative to successfully address wastewater reuse challenges.
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Giacometti F, Shirzad-Aski H, Ferreira S. Antimicrobials and Food-Related Stresses as Selective Factors for Antibiotic Resistance along the Farm to Fork Continuum. Antibiotics (Basel) 2021; 10:671. [PMID: 34199740 PMCID: PMC8230312 DOI: 10.3390/antibiotics10060671] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/29/2021] [Accepted: 06/01/2021] [Indexed: 12/19/2022] Open
Abstract
Antimicrobial resistance (AMR) is a global problem and there has been growing concern associated with its widespread along the animal-human-environment interface. The farm-to-fork continuum was highlighted as a possible reservoir of AMR, and a hotspot for the emergence and spread of AMR. However, the extent of the role of non-antibiotic antimicrobials and other food-related stresses as selective factors is still in need of clarification. This review addresses the use of non-antibiotic stressors, such as antimicrobials, food-processing treatments, or even novel approaches to ensure food safety, as potential drivers for resistance to clinically relevant antibiotics. The co-selection and cross-adaptation events are covered, which may induce a decreased susceptibility of foodborne bacteria to antibiotics. Although the available studies address the complexity involved in these phenomena, further studies are needed to help better understand the real risk of using food-chain-related stressors, and possibly to allow the establishment of early warnings of potential resistance mechanisms.
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Affiliation(s)
- Federica Giacometti
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, 40064 Bologna, Italy;
| | - Hesamaddin Shirzad-Aski
- Infectious Diseases Research Center, Golestan University of Medical Sciences, Gorgan 49178-67439, Iran;
| | - Susana Ferreira
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
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Vilela PB, Martins AS, Starling MCVM, de Souza FAR, Pires GFF, Aguilar AP, Pinto MEA, Mendes TAO, de Amorim CC. Solar photon-Fenton process eliminates free plasmid DNA harboring antimicrobial resistance genes from wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 285:112204. [PMID: 33618138 PMCID: PMC7988504 DOI: 10.1016/j.jenvman.2021.112204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/02/2021] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
This work aimed to assess the elimination and inactivation of resistance-conferring plasmids (RCPs) present in suspension in secondary wastewater by solar photo-Fenton as these are important vectors for the dissemination of antimicrobial resistance. Experiments were performed in synthetic secondary wastewater (SWW) and municipal wastewater treatment plant effluent (MWWTPE). Solar photo-Fenton (50 mg L-1 of H2O2 and 30 mg L-1 of Fe2+) was carried out for 60 min at neutral pH by applying the intermittent iron addition strategy. The removal of RCPs was assessed by Real-Time Polymerase Chain Reaction (qPCR). The transformation of competent non-resistant E. coli was used to evaluate the inactivation of target RCPs harboring antibiotic resistance genes (ARGs) to ampicillin (pSB1A2) or kanamycin (pSB1K3) after treatment and controls. Solar photo-Fenton completely removed RCPs initially present in both matrixes (SWW and MWWTPE), showing enhanced performance compared to the dark Fenton process. Both RCPs were inactivated after 30 min of solar photo-Fenton treatment, while 60 min were necessary to achieve the same effect for the dark Fenton reaction under similar conditions. These results indicate the potential of solar photo-Fenton to improve wastewater quality and reduce the spread of antimicrobial resistance in the environment by hampering the discharge of cell-free RCPs present in suspension in MWWTP onto environmental waters.
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Affiliation(s)
- Pâmela B Vilela
- Research Group on the Environmental Application of Advanced Oxidation Processes (GruPOA), Universidade Federal de Minas Gerais, Engineering School - Sanitary and Environmental Engineering Department, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil
| | - Alessandra S Martins
- Research Group on the Environmental Application of Advanced Oxidation Processes (GruPOA), Universidade Federal de Minas Gerais, Engineering School - Sanitary and Environmental Engineering Department, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil
| | - Maria Clara V M Starling
- Research Group on the Environmental Application of Advanced Oxidation Processes (GruPOA), Universidade Federal de Minas Gerais, Engineering School - Sanitary and Environmental Engineering Department, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil
| | - Felipe A R de Souza
- Research Group on the Environmental Application of Advanced Oxidation Processes (GruPOA), Universidade Federal de Minas Gerais, Engineering School - Sanitary and Environmental Engineering Department, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil
| | - Giovana F F Pires
- Research Group on the Environmental Application of Advanced Oxidation Processes (GruPOA), Universidade Federal de Minas Gerais, Engineering School - Sanitary and Environmental Engineering Department, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil
| | - Ananda P Aguilar
- Universidade Federal de Viçosa, Department of Biochemistry and Molecular Biology, Av. Peter Henry Rolfs, Viçosa, Brazil
| | - Maria Eduarda A Pinto
- Universidade Federal de Viçosa, Department of Biochemistry and Molecular Biology, Av. Peter Henry Rolfs, Viçosa, Brazil
| | - Tiago A O Mendes
- Universidade Federal de Viçosa, Department of Biochemistry and Molecular Biology, Av. Peter Henry Rolfs, Viçosa, Brazil
| | - Camila C de Amorim
- Research Group on the Environmental Application of Advanced Oxidation Processes (GruPOA), Universidade Federal de Minas Gerais, Engineering School - Sanitary and Environmental Engineering Department, Av. Antônio Carlos 6627, 31270-901, Pampulha, Belo Horizonte, Brazil.
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Chankhanittha T, Nanan S. Visible-light-driven photocatalytic degradation of ofloxacin (OFL) antibiotic and Rhodamine B (RhB) dye by solvothermally grown ZnO/Bi2MoO6 heterojunction. J Colloid Interface Sci 2021; 582:412-427. [DOI: 10.1016/j.jcis.2020.08.061] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/11/2020] [Accepted: 08/16/2020] [Indexed: 12/21/2022]
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