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Sharma P, Chukwuka A, Chatterjee S, Chakraborty D, Saha NC. Pathological and ultrastructural changes of Bellamya bengalensis under chronic carboxylic acid exposure at environmentally relevant levels: Inferences from general unified threshold model for survival (GUTS) predictions and hepatopancreatic integrity assessment. CHEMOSPHERE 2024; 361:142542. [PMID: 38844104 DOI: 10.1016/j.chemosphere.2024.142542] [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: 03/16/2024] [Revised: 05/20/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
This study aimed to understand the effects of freshwater acidification, driven by industrial runoff, agricultural activities, and atmospheric deposition, on the freshwater mollusk Bellamya bengalensis. By systematically investigating the impact of two common carboxylic acids, acetic acid (AA) and benzoic acid (BA), this research employed diverse toxicological, pathological, and ecological assessments. We explored survival predictions through the generic unified threshold model of survival (GUTS-SD), examined oxidative stress responses, and investigated hepatopancreatic alterations. In the experimental design, Bellamya bengalensis were subjected to environmentally relevant sublethal concentrations (10%, 20% LC50) of AA (39.77 and 79.54 mg/l) and BA (31.41 and 62.82 mg/l) over 28 days. Acute toxicity tests revealed increased LC50 values, indicating heightened toxicity with prolonged exposure, particularly due to the greater potency of benzoic acid compared to acetic acid. The GUTS-SD model provided accurate predictions of time-specific effects on populations, presenting long-term exposure (100 days) LC50 values for AA (263.7 mg/l) and BA (330.9 mg/l). Sequentially, the integrated biomarker response (IBR) analysis across study intervals highlighted the 28-day interval as the most sensitive, with GST emerging as the most responsive enzyme to oxidative stress induced by AA and BA. Histopathological and ultrastructural assessments of the hepatopancreas showed severe alterations, including necrosis, vacuolation and disrupted micro-villi, which were especially pronounced in higher BA exposure concentrations. These findings highlight the health and survival impacts of carboxylic acid toxicity on Bellamya bengalensis, emphasizing the need for proactive measures to mitigate acidification in aquatic ecosystems. The broader ecological implications underscore the importance of effective management and conservation strategies to address ongoing environmental challenges.
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Affiliation(s)
- Pramita Sharma
- Department of Zoology, The University of Burdwan, Burdwan, West Bengal, India
| | - Azubuike Chukwuka
- National Environmental Standards and Regulations Enforcement Agency, Osun State, Nigeria.
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Sharma P, Garai P, Banerjee P, Saha S, Chukwuka AV, Chatterjee S, Saha NC, Faggio C. Behavioral toxicity, histopathological alterations and oxidative stress in Tubifex tubifex exposed to aromatic carboxylic acids- acetic acid and benzoic acid: A comparative time-dependent toxicity assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 876:162739. [PMID: 36906024 DOI: 10.1016/j.scitotenv.2023.162739] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/23/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
This study evaluated Acetic acid (AA) and Benzoic acid's (BA) acute and sublethal toxicity by observing mortality, behavioral responses, and changes in the levels of oxidative stress enzymes in Tubifex tubifex. Exposure-induced changes in antioxidant activity (Catalase, Superoxide dismutase), oxidative stress (Malondialdehyde concentrations), and histopathological alterations in the tubificid worms were also noted across exposure intervals. The 96 h LC50 values of AA and BA to T. tubifex were 74.99 and 37.15 mg/l, respectively. Severity in behavioral alterations (including increased mucus production, wrinkling, and reduction in clumping) and autotomy showed concentration-dependent trends for both toxicants. Although histopathological effects also showed marked degeneration in the alimentary and integumentary systems in highest exposure groups (worms exposed to 14.99 mg/l for AA and 7.42 mg/l for BA) for both toxicants. Antioxidant enzymes (catalase and superoxide dismutase) also showed a marked increase of up to 8-fold and 10-fold for the highest exposure group of AA and BA respectively. While species sensitivity distribution analysis revealed T. tubifex as most sensitive to AA and BA compared to other freshwater vertebrates and invertebrates, General Unified Threshold model of Survival (GUTS) predicted individual tolerance effects (GUTS-IT), with slower potential for toxicodynamic recovery, as a more likely pathway for population mortality. Study findings demonstrate BA with greater potential for ecological effects compared to AA within 24 h of exposure. Furthermore, ecological risks to critical detritus feeders like T. tubifex may have severe implications for ecosystem services and nutrient availability within freshwater habitats.
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Affiliation(s)
- Pramita Sharma
- Fishery and Ecotoxicology Research Laboratory (Vice-Chancellor's Research Group), Department of Zoology, The University of Burdwan, Burdwan, West Bengal, India
| | - Pramita Garai
- Fishery and Ecotoxicology Research Laboratory (Vice-Chancellor's Research Group), Department of Zoology, The University of Burdwan, Burdwan, West Bengal, India
| | - Priyajit Banerjee
- Fishery and Ecotoxicology Research Laboratory (Vice-Chancellor's Research Group), Department of Zoology, The University of Burdwan, Burdwan, West Bengal, India
| | - Shubhajit Saha
- Department of Zoology, Sundarban Hazi Desarat College, Pathankhali, South 24, Parganas 743611, West Bengal, India
| | - Azubuike V Chukwuka
- National Environmental Standards and Regulations Enforcement Agency, Osogbo, Osun State, Nigeria
| | - Soumendranath Chatterjee
- Parasitology & Microbiology Research Laboratory, Department of Zoology, The University of Burdwan, Burdwan, West Bengal 713 104, India
| | - Nimai Chandra Saha
- Fishery and Ecotoxicology Research Laboratory (Vice-Chancellor's Research Group), Department of Zoology, The University of Burdwan, Burdwan, West Bengal, India.
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, Messina, Italy.
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Usman M, Kuckelkorn J, Kämpfe A, Zwiener C, Wintgens TA, Linnemann V. Identification of disinfection by-products (DBP) in thermal water swimming pools applying non-target screening by LC-/GC-HRMS. JOURNAL OF HAZARDOUS MATERIALS 2023; 449:130981. [PMID: 36801715 DOI: 10.1016/j.jhazmat.2023.130981] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/31/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
The discovery of new disinfection by-products (DBPs) is still a rarely investigated research area in past studies. In particular, compared to freshwater pools, therapeutic pools with their unique chemical composition have rarely been investigated for novel DBPs. Here we have developed a semi-automated workflow that combines data from target and non-target screening, calculated and measured toxicities into a heat map using hierarchical clustering to assess the pool's overall potential chemical risk. In addition, we used complementary analytical techniques such as positive and negative chemical ionization to demonstrate how novel DBPs can be better identified in future studies. We identified two representatives of the haloketones (pentachloroacetone, and pentabromoacetone) and tribromo furoic acid detected for the first time in swimming pools. Non-target screening combined with target analysis and toxicity assessment may help to define risk-based monitoring strategies in the future, as required by regulatory frameworks for swimming pool operations worldwide.
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Affiliation(s)
- Muhammad Usman
- Institute of Environmental Engineering, Environmental Analytical Laboratory, RWTH Aachen University, Mies-van-der-Rohe-Str.1, 52056 Aachen, Germany
| | - Jochen Kuckelkorn
- German Environment Agency, Toxicology of Drinking Water and Swimming Pool Water, Heinrich-Heine-Str. 12, 08645 Bad Elster, Germany
| | - Alexander Kämpfe
- German Environment Agency, Swimming Pool Water, Chemical Analytics, Heinrich-Heine-Str. 12, 08645 Bad Elster, Germany
| | - Christian Zwiener
- Environmental Analytical Chemistry, Department of Geosciences, University of Tübingen, Schnarrenbergstr. 94-96, 72076 Tübingen, Germany
| | - Thomas A Wintgens
- Institute of Environmental Engineering, Environmental Analytical Laboratory, RWTH Aachen University, Mies-van-der-Rohe-Str.1, 52056 Aachen, Germany
| | - Volker Linnemann
- Institute of Environmental Engineering, Environmental Analytical Laboratory, RWTH Aachen University, Mies-van-der-Rohe-Str.1, 52056 Aachen, Germany.
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Usman M, Hüben M, Kato T, Zwiener C, Wintgens T, Linnemann V. Occurrence of brominated disinfection by-products in thermal spas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157338. [PMID: 35843322 DOI: 10.1016/j.scitotenv.2022.157338] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/06/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
Thermal spas are gaining more and more popularity among the population because they are used for recreational purposes. Disinfecting these baths without losing the health benefits poses a challenge for swimming pool operators. Previous studies have mainly focused on regulated chlorinated DBPs in freshwater pools with no bromide or seawater pools with very high bromide content. Thermal water pools have a low bromide content and in combination with chlorine can lead to chlorinated, brominated and mixed halogenated DBP species. The occurrence of brominated and mixed halogenated DBPs in these types of pools is largely unexplored, with very few or limited studies published on regulated DBPs and even fewer on emerging DBP classes. In the field of swimming pool water disinfection, apart from extensive studies in the field of drinking water disinfection, only a few studies are known in which >39 halogenated and 16 non-halogenated disinfection by-products, including regulated trihalomethanes (THM) and haloacetic acids (HAA), were investigated in swimming pool water. Calculated bromine incorporation factor (BIF) demonstrated that even small amounts of bromide in swimming pool water can lead to a large shift in DBP species towards brominated and mixed halogenated DBPs. Dihaloacetonitriles (DHANs) accounted for >50% of the calculated cytotoxicity and genotoxicity on average. Comparison of the target analysis with the TOX showed that a major part of the measured TOX (69% on average) could be explained by the regulated classes THMs, HAAs, and the unregulated class of HANs. This study aims to help operators of swimming pools with bromide-containing water to gain a better understanding of DBP formation in future monitoring and to fill the knowledge gap that has existed so far on the occurrence of DBPs in thermal water pools.
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Affiliation(s)
- Muhammad Usman
- Institute of Environmental Engineering, Environmental Analytical Laboratory, RWTH Aachen University, Mies-van-der-Rohe-Str.1, 52056 Aachen, Germany
| | - Michael Hüben
- Fraunhofer IME, Auf dem Aberg 1, 57392 Schmallenberg, Germany
| | - Takuro Kato
- Analytical Instruments, Mitsubishi Chemical Europe, Willstätterstr. 45, 40549 Düsseldorf, Germany
| | - Christian Zwiener
- Environmental Analytical Chemistry, Center for Applied Geoscience, University of Tübingen, Schnarrenbergstr. 94-96, 72076 Tübingen, Germany
| | - Thomas Wintgens
- Institute of Environmental Engineering, Environmental Analytical Laboratory, RWTH Aachen University, Mies-van-der-Rohe-Str.1, 52056 Aachen, Germany
| | - Volker Linnemann
- Institute of Environmental Engineering, Environmental Analytical Laboratory, RWTH Aachen University, Mies-van-der-Rohe-Str.1, 52056 Aachen, Germany.
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Lu Z, Jing Z, Huang J, Ke Y, Li C, Zhao Z, Ao X, Sun W. Can we shape microbial communities to enhance biological activated carbon filter performance? WATER RESEARCH 2022; 212:118104. [PMID: 35114529 DOI: 10.1016/j.watres.2022.118104] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
A new focus on biofiltration has emerged that aims to shape microbial communities to improve treatment efficacy. It is therefore necessary to understand the linkages between microbial community structure and biofilter function. However, the assembly and interaction of microbial communities in biological activated carbon (BAC) filters are unknown. In this study, we selected one coal-based granular activated carbon (GAC), GAC-13, with simultaneously developed micropore and micro-level macropore volume used for a bench-scale BAC column experiment, and compared it with other coal-based GACs and wood-based GAC in terms of the dissolved organic carbon (DOC) removal and microbial community characteristics. The results showed that there was no difference between the DOC removal efficiency of BAC-13 and the other two coal-based BAC filters with high iodine value in the period dominated by adsorption, while the DOC removal efficiency of BAC-13 (64.7±0.6%) was significantly higher than that of other BAC filters (36.3±0.8-54.1±0.4%) with a difference of 0.3-0.7 mg/L in DOC during the steady state. The bacterial communities were strongly assembled by deterministic rather than stochastic factors, where the surface polarity of GAC had a greater effect on the microbial communities than its physical properties. The corresponding co-occurrence network revealed that microbes in the BAC filter may be more cooperative than competitive. The keystone bacterium Hyphomicrobium, which had a relatively low abundance, contributed 0.3-1% more to the most abundant functions and produced 5-21 proteins/(g·GAC) more than the dominant bacterium Sphingobium. The metaproteomic-based approach could provide more accurate information regarding the contributions of different species to metabolic functions. The pore size distribution of GAC was found to be an important factor in determining BAC filter performance; the most important pore sizes were micropores and micro-level macropores (0.2-10 μm and >100 μm in diameter), and the latter impacted the abundance of keystone species. Overall, our findings provide new insights into shaping microbial communities by optimizing pore size structure to improve BAC performance, especially the abundance of keystone species.
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Affiliation(s)
- Zedong Lu
- School of Environment, Tsinghua University, Beijing 100084, China; Research Institute for Environmental Innovation (Suzhou) Tsinghua, Suzhou 215163, China
| | - Zibo Jing
- School of Environment, Tsinghua University, Beijing 100084, China; Beijing Engineering Research Center of Environmental Material for Water Purification, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jing Huang
- Beijing Drainage Group Co. Ltd. (BDG), Beijing 100022, China
| | - Yanchu Ke
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Chen Li
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Zhinan Zhao
- School of Environment, Tsinghua University, Beijing 100084, China; Beijing Engineering Research Center of Environmental Material for Water Purification, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiuwei Ao
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Wenjun Sun
- School of Environment, Tsinghua University, Beijing 100084, China; Research Institute for Environmental Innovation (Suzhou) Tsinghua, Suzhou 215163, China.
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Popov M, Kragulj Isakovski M, Molnar Jazić J, Tubić A, Watson M, Šćiban M, Agbaba J. Fate of natural organic matter and oxidation/disinfection by-products formation at a full-scale drinking water treatment plant. ENVIRONMENTAL TECHNOLOGY 2021; 42:3475-3486. [PMID: 32075547 DOI: 10.1080/09593330.2020.1732474] [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: 09/13/2019] [Accepted: 02/13/2020] [Indexed: 06/10/2023]
Abstract
This paper investigates the fate of natural organic matter (NOM) during the full-scale drinking water treatment plant supplied by Danube river bank filtration. After the recent reconstruction of the plant, special attention was devoted to the effects of ozone dose and granulated activated carbon (GAC) filtration on the formation and behaviour of oxidation by-products (carbonyl compounds and bromate), as well as carbonaceous and nitrogenous chlorination by-products. For the oxidation of aromatic NOM moieties that absorb light at UV254, a lower ozone dose (1.0 g O3/m3) is sufficient, whereas to achieve a measurable reduction (about 20%) of total organic carbon, an ozone dose of 1.5 g O3/m3 is required. The content of carbonyl compounds in the water after ozonation increases relative to the content before oxidation treatment, and is up to 12 times higher in the case of aldehydes and up to 2 times higher in the case of carboxylic acids. Seasonal variations, including changes in temperature and the amount of precipitation, were also shown to affect the content of organic matter in the raw water, with slight effects on the quality of the treated water. In the winter, the organic matter content is slightly higher, meaning their transformation products aldehydes and carboxylic acids, are also higher during the winter than the summer.
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Affiliation(s)
- Mladen Popov
- PUC Water and Sewerage Novi Sad, Novi Sad, Republic of Serbia
| | - Marijana Kragulj Isakovski
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Republic of Serbia
| | - Jelena Molnar Jazić
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Republic of Serbia
| | - Aleksandra Tubić
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Republic of Serbia
| | - Malcolm Watson
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Republic of Serbia
| | - Marina Šćiban
- Faculty of Technology, Department of Biotechnology and Pharmaceutical Engineering, University of Novi Sad, Novi Sad, Republic of Serbia
| | - Jasmina Agbaba
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Republic of Serbia
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Kasuga I, Suzuki M, Kurisu F, Furumai H. Molecular-level characterization of biodegradable organic matter causing microbial regrowth in drinking water by non-target screening using Orbitrap mass spectrometry. WATER RESEARCH 2020; 184:116130. [PMID: 32731039 DOI: 10.1016/j.watres.2020.116130] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/14/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Ikuro Kasuga
- Department of Urban Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8656, Japan.
| | - Miyu Suzuki
- Department of Urban Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8656, Japan
| | - Futoshi Kurisu
- Research Center for Water Environment Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8656, Japan
| | - Hiroaki Furumai
- Research Center for Water Environment Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8656, Japan
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Trends in Ozonation Disinfection By-Products—Occurrence, Analysis and Toxicity of Carboxylic Acids. WATER 2020. [DOI: 10.3390/w12030756] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Ozonation is becoming a common disinfection method for drinking water treatment. This has prompted the investigation of ozonation disinfection by-products (ODBPs) in drinking water. Ozonation generates a diverse range of carbonyl disinfection by-products, including carboxylic acids, aldehydes, ketones and aldo-ketoacids. Among these ODBPs, carboxylic acid by-products (CABPs) are observed in higher concentrations compared to other carbonyl by-products. However, relatively little research has been conducted on CABPs, including their precursors, formation and occurrence, methods of detection and toxicity. This review outlines the occurrence and variability of CABPs in a number of water sources treated and disinfected with ozonation. It considers the effect of ozonation parameters, including ozone dose, temperature and time of ozonation on the formation of CABPs. The review also discusses the various analytical approaches for CABP quantification, as well as their possible toxicity in drinking water.
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Disinfection Byproducts in Drinking Water and Evaluation of Potential Health Risks of Long-Term Exposure in Nigeria. JOURNAL OF ENVIRONMENTAL AND PUBLIC HEALTH 2017; 2017:7535797. [PMID: 28900447 PMCID: PMC5576402 DOI: 10.1155/2017/7535797] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 05/26/2017] [Accepted: 07/06/2017] [Indexed: 01/29/2023]
Abstract
Levels of trihalomethanes (THMs) in drinking water from water treatment plants (WTPs) in Nigeria were studied using a gas chromatograph (GC Agilent 7890A with autosampler Agilent 7683B) equipped with electron capture detector (ECD). The mean concentrations of the trihalomethanes ranged from zero in raw water samples to 950 μg/L in treated water samples. Average concentration values of THMs in primary and secondary disinfection samples exceeded the standard maximum contaminant levels. Results for the average THMs concentrations followed the order TCM > BDCM > DBCM > TBM. EPA-developed models were adopted for the estimation of chronic daily intakes (CDI) and excess cancer incidence through ingestion pathway. Higher average intake was observed in adults (4.52 × 10-2 mg/kg-day), while the ingestion in children (3.99 × 10-2 mg/kg-day) showed comparable values. The total lifetime cancer incidence rate was relatively higher in adults than children with median values 244 and 199 times the negligible risk level.
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Zhong X, Cui C, Yu S. Seasonal evaluation of disinfection by-products throughout two full-scale drinking water treatment plants. CHEMOSPHERE 2017; 179:290-297. [PMID: 28371712 DOI: 10.1016/j.chemosphere.2017.03.103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 03/21/2017] [Accepted: 03/25/2017] [Indexed: 06/07/2023]
Abstract
Carbonyl compounds can occur alpha-hydrogens or beta-diketones substitution reactions with disinfectants contributed to halogenated by-products formation. The objective of this research was to study the occurrence and fate of carbonyl compounds as ozonation by-products at two full-scale drinking water treatment plants (DWTPs) using different disinfectants for one year. The quality of the raw water used in both plants was varied according to the season. The higher carbonyl compounds concentrations were found in raw water in spring. Up to 15 (as the sum of both DWTPs) of the 24 carbonyl compounds selected for this work were found after disinfection. The dominant carbonyl compounds were formaldehyde, glyoxal, methyl-glyoxal, fumaric, benzoic, protocatechuic and 3-hydroxybenzoic acid at both DWTPs. In the following steps in each treatment plant, the concentration patterns of these carbonyl compounds differed depending on the type of disinfectant applied. Benzaldehyde was the only aromatic aldehyde detected after oxidation with ozone in spring. As compared with DWTP 1, five new carbonyl compounds were formed (crotonaldehyde, benzaldehyde, formic, oxalic and malonic acid) disinfection by ozone, and the levels of the carbonyl compounds increased. In addition, pre-ozonation (PO) and main ozonation (OZ) increased the levels of carbonyl compounds, however coagulation/flocculation (CF), sand filtration (SF) and granular activated carbon filtration (GAC) decreased the levels of carbonyl compounds.
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Affiliation(s)
- Xin Zhong
- School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China.
| | - Chongwei Cui
- School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China.
| | - Shuili Yu
- School of Environmental Science and Engineering, Tongji University, Shanghai, 200433, China
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Zhong X, Cui C, Yu S. The determination and fate of disinfection by-products from ozonation-chlorination of fulvic acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:6472-6480. [PMID: 28074362 DOI: 10.1007/s11356-016-8350-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/28/2016] [Indexed: 06/06/2023]
Abstract
Ozonation of fulvic acid (FA) can result in diverse intermediate oxidation by-products, significantly affecting disinfection by-product (DBP) formation following chlorination. The objective of this study was to provide insight into ozone reaction intermediates and reveal the possible formation pathway of DBPs from ozonation of FA due to the formation of intermediate oxidation by-products. Aldehydes, aromatic acids, short-chain acids, chloroform, and dichloroacetic acid were detected at various ozone dosage additions. Aromatic acids were studied by using solid-phase extraction-ultra high-performance liquid chromatography (SPE-UPLC). This new analytical approach enables the extraction and analysis of highly polar carboxylic acids that are difficult to measure using conventional methods. The results showed that formaldehyde, acetaldehyde, glyoxal, methyl-glyoxal, fumaric, malonic protocatechuic, 3-hydroxybenzoic, and benzoic acid were predominant oxidation by-products. The yields of the four aldehydes increased steadily with ozone dosage. When ozone dosage was 2∼2.5 mg/l, the amount of carboxylic acids was largest, and the total amount of the carboxylic acids was about 5∼10 times higher than that of the aldehydes. Besides, hydroxybenzoic acids are the major precursor, although they have low content in ozone reaction solution, they have a great contribution to the DBP formation. This study provides a new perspective on ozonation natural organic matter, which contributes to understand the other sources of DBPs and thus broadens the knowledge of drinking water treatment.
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Affiliation(s)
- Xin Zhong
- School of Municipal & Environmental Engineering, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin, Heilongjiang Province, China
| | - Chongwei Cui
- School of Municipal & Environmental Engineering, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin, Heilongjiang Province, China.
| | - Shuili Yu
- School of Environmental Science and Engineering, Tongji University, Shanghai, 200433, China
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12
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Zhong X, Cui C, Yu S. Exploring the pathways of aromatic carboxylic acids in ozone solutions. RSC Adv 2017. [DOI: 10.1039/c7ra03039h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reaction between ozone and natural organic matter (NOM) generates a certain amount of aromatic carboxylic acids (ACAs).
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Affiliation(s)
- Xin Zhong
- School of Municipal & Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Chongwei Cui
- School of Municipal & Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Shuili Yu
- School of Environmental Science and Engineering
- Tongji University
- Shanghai 200433
- China
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13
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Feng M, Yan L, Zhang X, Sun P, Yang S, Wang L, Wang Z. Fast removal of the antibiotic flumequine from aqueous solution by ozonation: Influencing factors, reaction pathways, and toxicity evaluation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:167-175. [PMID: 26409146 DOI: 10.1016/j.scitotenv.2015.09.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 08/17/2015] [Accepted: 09/10/2015] [Indexed: 05/10/2023]
Abstract
As one of the first generation of fluoroquinolone antibiotics, flumequine (FLU) has been detected ubiquitously in surface waters and municipal wastewaters. In light of FLU's possible adverse effects on aquatic species, the removal of this antibiotic has received worldwide attention. In this study, the kinetics, transformation products, mechanisms and toxicity variations of the ozonation process for FLU were systematically determined. The possible effects of solution pH, addition of inorganic ions, dissolved organic matter, and tert-butyl-alcohol (a radical scavenger), as well as the type of water matrices on FLU removal by ozonation, were studied from the perspective of the degradation kinetics. The data obtained suggested that ozone can be used as an effective oxidant for the fast removal of FLU from natural waters. Using liquid chromatography-mass spectrometry, a total of thirteen transformation products of FLU during ozonation were identified, and their specific reaction mechanisms were also proposed. The degradation pathways involving the hydroxylation, decarboxylation and defluorination were tentatively proposed. Meanwhile, the generation of three low-molecular-weight carboxylic acids was also observed. In addition, the potential toxicity of the transformation mixtures of FLU by ozone was evaluated. Overall, this paper can be a unique contribution to the systematic elucidation of the ozonation process of this antibiotic in water.
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Affiliation(s)
- Mingbao Feng
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China
| | - Liqing Yan
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China
| | - Xiaoling Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China
| | - Ping Sun
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China
| | - Shaogui Yang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China
| | - Liansheng Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China
| | - Zunyao Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Jiangsu, Nanjing 210023, PR China.
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14
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Papageorgiou A, Papadakis N, Voutsa D. Fate of natural organic matter at a full-scale Drinking Water Treatment Plant in Greece. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:1841-1851. [PMID: 26400244 DOI: 10.1007/s11356-015-5433-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 09/14/2015] [Indexed: 06/05/2023]
Abstract
The aim of this study was to investigate the fate of natural organic matter (NOM) and subsequent changes during the various treatment processes at a full-scale Drinking Water Treatment Plant (DWTP). Monthly sampling campaigns were conducted for 1 year at six sites along DWTP of Thessaloniki, Northern Greece including raw water from the Aliakmonas River that supplies DWTP and samples from various treatment processes (pre-ozonation, coagulation, sand filtration, ozonation, and granular activated carbon (GAC) filtration). The concentration of NOM and its characteristics as well as the removal efficiency of various treatment processes on the basis of dissolved organic carbon, UV absorbance, specific ultra-violet absorbance, fluorescence intensity, hydrophobicity, biodegradable dissolved organic carbon, and formation potential of chlorination by-products trihalomethanes (THMs) and haloacetic acids (HAAs) were studied. The concentration of dissolved organic carbon (DOC) in reservoir of the Aliakmonas River ranged from 1.46 to 1.84 mg/L, exhibiting variations regarding UV, fluorescence, and hydrophobic character through the year. Along DWTP, a significant reduction of aromatic, fluorophoric, and hydrophobic character of NOM was observed resulting in significant elimination of THM (63%) and HAAs (75%) precursors.
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Affiliation(s)
- A Papageorgiou
- Environmental Pollution Control Laboratory, Department of Chemistry, Aristotle University of Thessaloniki, 511 24, Thessaloniki, Greece
| | - N Papadakis
- Medical School, Aristotle University of Thessaloniki, 511 24, Thessaloniki, Greece
| | - D Voutsa
- Environmental Pollution Control Laboratory, Department of Chemistry, Aristotle University of Thessaloniki, 511 24, Thessaloniki, Greece.
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15
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Agbaba J, Jazić JM, Tubić A, Watson M, Maletić S, Isakovski MK, Dalmacija B. Oxidation of natural organic matter with processes involving O3, H2O2and UV light: formation of oxidation and disinfection by-products. RSC Adv 2016. [DOI: 10.1039/c6ra18072h] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study investigates the effects of UV photolysis, ozonation and different advanced oxidation processes (O3/UV, H2O2/UV and O3/H2O2/UV) on the oxidation of groundwater natural organic matter (NOM) and by-product formation.
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Affiliation(s)
- Jasmina Agbaba
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- Republic of Serbia
| | - Jelena Molnar Jazić
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- Republic of Serbia
| | - Aleksandra Tubić
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- Republic of Serbia
| | - Malcolm Watson
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- Republic of Serbia
| | - Snežana Maletić
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- Republic of Serbia
| | - Marijana Kragulj Isakovski
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- Republic of Serbia
| | - Božo Dalmacija
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- Republic of Serbia
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16
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Serrano M, Montesinos I, Cardador MJ, Silva M, Gallego M. Seasonal evaluation of the presence of 46 disinfection by-products throughout a drinking water treatment plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 517:246-58. [PMID: 25771439 DOI: 10.1016/j.scitotenv.2015.02.070] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 02/19/2015] [Accepted: 02/19/2015] [Indexed: 05/03/2023]
Abstract
In this work, we studied a total of 46 regulated and non-regulated disinfection by-products (DBPs) including 10 trihalomethanes (THMs), 13 haloacetic acids (HAAs), 6 halonitromethanes (HNMs), 6 haloacetonitriles (HANs) and 11 aldehydes at different points in a drinking water treatment plant (DWTP) and its distribution network. Determining an increased number of compounds and using accurate, sensitive analytical methodologies for new DBPs can be useful to overcome some challenges encountered in the comprehensive assessment of the quality and safety of drinking water. This paper provides a detailed picture of the spatial and seasonal variability of DBP concentrations from raw water to distribution network. Samples were collected on a monthly basis at seven different points in the four seasons of a year to acquire robust data for DBPs and supplementary quality-related water parameters. Only 5 aldehydes and 2 HAAs were found in raw water. Chlorine dioxide caused the formation of 3 new aldehydes (benzaldehyde included), 5 HAAs and chloroform. The concentrations of DBPs present in raw water were up to 6 times higher in the warmer seasons (spring and summer). The sedimentation process further increased their concentrations and caused the formation of three new ones. Sand filtration substantially removed aldehydes and HAAs (15-50%), but increased the levels of THMs, HNMs and HANs by up to 70%. Chloramination raised the levels of 8 aldehydes and 7 HAAs; also, it caused the formation of monoiodoacetic acid, dibromochloromethane, dichloroiodomethane and bromochloroacetonitrile. Therefore, this treatment increases the levels of existing DBPs and leads to the formation of new ones to a greater extent than does chlorine dioxide. Except for 5 aldehydes, the 23 DBPs encountered at the DWTP exit were found at increased concentrations in the warmer seasons (HAAs by about 50% and THMs by 350%).
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Affiliation(s)
- Maria Serrano
- Department of Analytical Chemistry, Campus of Rabanales, University of Córdoba, E-14071 Córdoba, Spain
| | - Isabel Montesinos
- Department of Analytical Chemistry, Campus of Rabanales, University of Córdoba, E-14071 Córdoba, Spain
| | - M J Cardador
- Department of Analytical Chemistry, Campus of Rabanales, University of Córdoba, E-14071 Córdoba, Spain
| | - Manuel Silva
- Department of Analytical Chemistry, Campus of Rabanales, University of Córdoba, E-14071 Córdoba, Spain
| | - Mercedes Gallego
- Department of Analytical Chemistry, Campus of Rabanales, University of Córdoba, E-14071 Córdoba, Spain.
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17
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Etchepare R, van der Hoek JP. Health risk assessment of organic micropollutants in greywater for potable reuse. WATER RESEARCH 2015; 72:186-198. [PMID: 25472689 DOI: 10.1016/j.watres.2014.10.048] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 08/11/2014] [Accepted: 10/21/2014] [Indexed: 06/04/2023]
Abstract
In light of the increasing interest in development of sustainable potable reuse systems, additional research is needed to elucidate the risks of producing drinking water from new raw water sources. This article investigates the presence and potential health risks of organic micropollutants in greywater, a potential new source for potable water production introduced in this work. An extensive literature survey reveals that almost 280 organic micropollutants have been detected in greywater. A three-tiered approach is applied for the preliminary health risk assessment of these chemicals. Benchmark values are derived from established drinking water standards for compounds grouped in Tier 1, from literature toxicological data for compounds in Tier 2, and from a Threshold of Toxicological Concern approach for compounds in Tier 3. A risk quotient is estimated by comparing the maximum concentration levels reported in greywater to the benchmark values. The results show that for the majority of compounds, risk quotient values were below 0.2, which suggests they would not pose appreciable concern to human health over a lifetime exposure to potable water. Fourteen compounds were identified with risk quotients above 0.2 which may warrant further investigation if greywater is used as a source for potable reuse. The present findings are helpful in prioritizing upcoming greywater quality monitoring and defining the goals of multiple barriers treatment in future water reclamation plants for potable water production.
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Affiliation(s)
- Ramiro Etchepare
- Laboratório de Tecnologia Mineral e Ambiental, Departamento de Engenharia de Minas, PPGE3M, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS, Brazil; CAPES Foundation, Ministry of Education of Brazil, Brasília DF 70.040-020, Brazil.
| | - Jan Peter van der Hoek
- Delft University of Technology, Department Water Management, Stevinweg 1, 2628 CN Delft, The Netherlands; Waternet, Strategic Centre, Korte Ouderkerkerdijk 7, 1096 AC Amsterdam, The Netherlands.
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18
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Papageorgiou A, Voutsa D, Papadakis N. Occurrence and fate of ozonation by-products at a full-scale drinking water treatment plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 481:392-400. [PMID: 24607632 DOI: 10.1016/j.scitotenv.2014.02.069] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 01/25/2014] [Accepted: 02/17/2014] [Indexed: 06/03/2023]
Abstract
The occurrence and fate of carbonyl compounds as ozonation by-products at a full scale drinking water treatment plant (DWTP) were studied for one year. Raw water and samples after the main treatment processes (pre-ozonation, coagulation/flocculation, sand filtration, main ozonation, filtration through granular activated carbon and chlorination) were collected on a monthly basis. Pre-ozonation led to the formation of carbonyl compounds at concentrations of 67.3 ± 43.3 μg/l as sum of 14 carbonyl compounds whereas lower concentrations were determined after the main ozonation process, 32.8 ± 22.3 μg/l. The dominant compounds were formaldehyde, acetaldehyde, glyoxal and methyl glyoxal contributing to 65% of total carbonyl content. The DOC reactivity in formation of carbonyl compounds varied through the year exhibiting the higher values in spring. Coagulation/flocculation and sand filtration significantly removed (64-80%) the carbonyl compounds formed at the pre-ozonation step. The removal efficiency of filtration through granular activated carbon showed great variation ranging from 15 to 62%. Finally, the concentrations of carbonyl compounds in finished water were low, close to detection limits, revealing the efficiency of DWTP in the removal of this class of ozonation by-products.
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Affiliation(s)
- A Papageorgiou
- Environmental Pollution Control Laboratory, Department of Chemistry, Aristotle University of Thessaloniki, 511 24 Thessaloniki, Greece.
| | - D Voutsa
- Environmental Pollution Control Laboratory, Department of Chemistry, Aristotle University of Thessaloniki, 511 24 Thessaloniki, Greece.
| | - N Papadakis
- Medical School, Aristotle University of Thessaloniki, 511 24 Thessaloniki, Greece
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