Deepanraj Balakrishnan, Feroz Shaik, Muhammad Aamer Mehmood
Abstract not available
无摘要
{"title":"Innovative strategies for treatment and management of saline water/wastewater","authors":"Deepanraj Balakrishnan, Feroz Shaik, Muhammad Aamer Mehmood","doi":"10.2166/wrd.2023.202","DOIUrl":"https://doi.org/10.2166/wrd.2023.202","url":null,"abstract":"Abstract not available","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140560033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tara Randall, Inbar Shlomo, Emma Wells, Breanna Real, Ben Ma, Yarrow Linden, Jasmine Gamboa, Eran Friedler, Karl G. Linden
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A commercially available UVLED flow-through device, operating at 40 mJ/cm2, was examined for biofilm control on irrigation pipe material fed by wastewater effluent. Biofouling was monitored through total coliform counts, crystal violet (CV) staining, and ATP analyses. A UV fluence of 40 mJ/cm2 at 280 nm retarded biofilm formation; however, complete biofilm prevention by UV treatment was not achieved despite a high inactivation of planktonic cells. After 5 days
View largeDownload slideView largeDownload slide Close modal一种市售的紫外发光二极管直流装置，以 40 mJ/cm2 的光照强度工作，用于控制由废水流入的灌溉管道材料上的生物膜。通过总大肠菌群计数、水晶紫（CV）染色和 ATP 分析来监测生物污垢。280 纳米波长下 40 mJ/cm2 的紫外线可延缓生物膜的形成；不过，尽管浮游细胞的灭活率很高，但紫外线处理并不能完全防止生物膜的形成。研究进行 5 天后，紫外线处理过的生物反应器和对照生物反应器的总大肠菌群和 CV 生物膜定量检测结果没有统计学差异。总大肠菌群计数表明生物膜细胞浓度已经稳定；CV 检测表明生物膜生物量随着时间的推移而积累。ATP 检测结果表明，到第 5 天时，紫外线处理过的生物膜比对照生物膜的 ATP 高。这些结果引发了关于以总大肠菌群为代表的可存活细胞和细胞外聚合物质（EPS）对生物膜总生物量的贡献的有趣讨论。这项研究还强调了进一步研究 ATP 反应与不同微生物群落（而不是纯细菌培养物）的复杂紫外线压力反应之间关系的必要性。
{"title":"Evaluation of UVLED disinfection for biofouling control during distribution of wastewater effluent","authors":"Tara Randall, Inbar Shlomo, Emma Wells, Breanna Real, Ben Ma, Yarrow Linden, Jasmine Gamboa, Eran Friedler, Karl G. Linden","doi":"10.2166/wrd.2024.131","DOIUrl":"https://doi.org/10.2166/wrd.2024.131","url":null,"abstract":"<div><div data- reveal-group-><div><img alt=\"graphic\" data-src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/jwrd/14/1/10.2166_wrd.2024.131/2/m_wreuse-d-23-00131gf01.png?Expires=1714756187&Signature=fTVDlRLmYTtk39AywKFmLtVD63~8OkgcKdEoks5P9kpqjc1xal2n0tpZpwaqB0xQBxA~LH4Il1GyVSHTLU~onGINDQPMDHaNE7Dry169v6TR473FJyD-Lnhzb7u20LLm2tyuOrsUln2hmtW0Pk5yW-wOunkS4zJXv3dUlugxAf86gnMZusLG5w463d47UO0SA8YE4h7hMY-sUumxg~Uaov~H26AbUx~2cFv~wEgmTR6v5rTuostdiOF7UbeuDsYIJ52duNzIESLYAI1cvjkG3AtxAVkO1yfG7lQGQit0n7fiszEwyd31DxJPXwi4xrXbUMIOq8u36vqPGUE4eM2o4g__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\" path-from-xml=\"wreuse-d-23-00131gf01.tif\" src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/jwrd/14/1/10.2166_wrd.2024.131/2/m_wreuse-d-23-00131gf01.png?Expires=1714756187&Signature=fTVDlRLmYTtk39AywKFmLtVD63~8OkgcKdEoks5P9kpqjc1xal2n0tpZpwaqB0xQBxA~LH4Il1GyVSHTLU~onGINDQPMDHaNE7Dry169v6TR473FJyD-Lnhzb7u20LLm2tyuOrsUln2hmtW0Pk5yW-wOunkS4zJXv3dUlugxAf86gnMZusLG5w463d47UO0SA8YE4h7hMY-sUumxg~Uaov~H26AbUx~2cFv~wEgmTR6v5rTuostdiOF7UbeuDsYIJ52duNzIESLYAI1cvjkG3AtxAVkO1yfG7lQGQit0n7fiszEwyd31DxJPXwi4xrXbUMIOq8u36vqPGUE4eM2o4g__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\"/><div>View largeDownload slide</div></div></div><div content- data-reveal=\"data-reveal\"><div><img alt=\"graphic\" data-src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/jwrd/14/1/10.2166_wrd.2024.131/2/m_wreuse-d-23-00131gf01.png?Expires=1714756187&Signature=fTVDlRLmYTtk39AywKFmLtVD63~8OkgcKdEoks5P9kpqjc1xal2n0tpZpwaqB0xQBxA~LH4Il1GyVSHTLU~onGINDQPMDHaNE7Dry169v6TR473FJyD-Lnhzb7u20LLm2tyuOrsUln2hmtW0Pk5yW-wOunkS4zJXv3dUlugxAf86gnMZusLG5w463d47UO0SA8YE4h7hMY-sUumxg~Uaov~H26AbUx~2cFv~wEgmTR6v5rTuostdiOF7UbeuDsYIJ52duNzIESLYAI1cvjkG3AtxAVkO1yfG7lQGQit0n7fiszEwyd31DxJPXwi4xrXbUMIOq8u36vqPGUE4eM2o4g__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\" path-from-xml=\"wreuse-d-23-00131gf01.tif\" src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/jwrd/14/1/10.2166_wrd.2024.131/2/m_wreuse-d-23-00131gf01.png?Expires=1714756187&Signature=fTVDlRLmYTtk39AywKFmLtVD63~8OkgcKdEoks5P9kpqjc1xal2n0tpZpwaqB0xQBxA~LH4Il1GyVSHTLU~onGINDQPMDHaNE7Dry169v6TR473FJyD-Lnhzb7u20LLm2tyuOrsUln2hmtW0Pk5yW-wOunkS4zJXv3dUlugxAf86gnMZusLG5w463d47UO0SA8YE4h7hMY-sUumxg~Uaov~H26AbUx~2cFv~wEgmTR6v5rTuostdiOF7UbeuDsYIJ52duNzIESLYAI1cvjkG3AtxAVkO1yfG7lQGQit0n7fiszEwyd31DxJPXwi4xrXbUMIOq8u36vqPGUE4eM2o4g__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\"/><div>View largeDownload slide</div></div><i> </i><span>Close modal</span></div></div><p>A commercially available UVLED flow-through device, operating at 40 mJ/cm<sup>2</sup>, was examined for biofilm control on irrigation pipe material fed by wastewater effluent. Biofouling was monitored through total coliform counts, crystal violet (CV) staining, and ATP analyses. A UV fluence of 40 mJ/cm<sup>2</sup> at 280 nm retarded biofilm formation; however, complete biofilm prevention by UV treatment was not achieved despite a high inactivation of planktonic cells. After 5 days ","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140599770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The environmental protection industry has become an important support entity for the construction of ecological civilization and economic growth in China. However, there is little research on the competitiveness of environmental protection enterprises (EPEs). The construction of a set of scientific, comprehensive, practical, qualitative, and quantitative evaluation index systems is an important prerequisite for the sustainable and healthy development of the industry. Based on the literature analysis, semi-structured interviews with experts, and the Delphi method, the evaluation indicators for the competitiveness of EPEs were determined. Qualitatively, the evaluation index system of the competitiveness of EPEs contained 5 primary indicators, 12 secondary indicators, and 39 tertiary indicators. The analytic hierarchy process was used to determine the weights of indicators at each level. The primary indicators in order of weighting were organizational management capability, business environment, financial capability, innovation capability, and social responsibility, with corresponding weights of 26.13, 24.82, 21.76, 19.60, and 7.68%, respectively. Eight A-share listed EPEs in the water sector were selected for competitive evaluation. The evaluation index system of EPEs' competitiveness, being scientific-practical, combined, and quantitative, was constructed to provide a reference for the comprehensive evaluation of enterprises and the sustainable and healthy development of the industry.
{"title":"Construction and empirical research of the evaluation index system of environmental protection enterprises’ competitiveness based on the Delphi and AHP methods","authors":"Hui-Chun Wu, Shasha Zhao, Zhen Liu, Yingzi Guo, Yong Li, X. Hou, Yuanyuan Li, Chenguang Li, Fengmin Li","doi":"10.2166/wrd.2023.082","DOIUrl":"https://doi.org/10.2166/wrd.2023.082","url":null,"abstract":"\u0000 The environmental protection industry has become an important support entity for the construction of ecological civilization and economic growth in China. However, there is little research on the competitiveness of environmental protection enterprises (EPEs). The construction of a set of scientific, comprehensive, practical, qualitative, and quantitative evaluation index systems is an important prerequisite for the sustainable and healthy development of the industry. Based on the literature analysis, semi-structured interviews with experts, and the Delphi method, the evaluation indicators for the competitiveness of EPEs were determined. Qualitatively, the evaluation index system of the competitiveness of EPEs contained 5 primary indicators, 12 secondary indicators, and 39 tertiary indicators. The analytic hierarchy process was used to determine the weights of indicators at each level. The primary indicators in order of weighting were organizational management capability, business environment, financial capability, innovation capability, and social responsibility, with corresponding weights of 26.13, 24.82, 21.76, 19.60, and 7.68%, respectively. Eight A-share listed EPEs in the water sector were selected for competitive evaluation. The evaluation index system of EPEs' competitiveness, being scientific-practical, combined, and quantitative, was constructed to provide a reference for the comprehensive evaluation of enterprises and the sustainable and healthy development of the industry.","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44166945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Min Li, Lu Ma, Yajing An, Dongbin Wei, Haijun Ma, Juanjuan Zhu, Cuiping Wang
We examined the growth tolerance, bioremoval efficacy, and metabolomic profiles of the cellular responses of Chlorella pyrenoidosa to phenol and 4-fluorophenol. We found that C. pyrenoidosa can tolerate exposure to 100 mg/L of phenol and 4-fluorophenol, and the growth of algal cells had a significant hormesis of inhibition first and then promotion. Up to 70% bioremoval of phenol and 4-fluorophenol may occur after 240 h of treatment. Superoxide dismutase (SOD) and CAT activities, malondialdehyde (MDA) content, and reactive oxygen species (ROS) in algal cells in the phenol- and 4-fluorophenol-treated groups were similar or lower than in the control group. Furthermore, photosynthetic pigment and glycerophospholipid contents were significantly upregulated in both phenol- and 4-fluorophenol-treated groups, as indicated by the metabolomic analysis of C. pyrenoidosa, resulting in the vigorous growth of algal cells compared to the control group. Therefore, C. pyrenoidosa can be an excellent biosorbent for phenol and 4-fluorophenol.
{"title":"Bioremoval efficiency and metabolomic profiles of cellular responses of Chlorella pyrenoidosa to phenol and 4-fluorophenol","authors":"Min Li, Lu Ma, Yajing An, Dongbin Wei, Haijun Ma, Juanjuan Zhu, Cuiping Wang","doi":"10.2166/wrd.2023.003","DOIUrl":"https://doi.org/10.2166/wrd.2023.003","url":null,"abstract":"\u0000 We examined the growth tolerance, bioremoval efficacy, and metabolomic profiles of the cellular responses of Chlorella pyrenoidosa to phenol and 4-fluorophenol. We found that C. pyrenoidosa can tolerate exposure to 100 mg/L of phenol and 4-fluorophenol, and the growth of algal cells had a significant hormesis of inhibition first and then promotion. Up to 70% bioremoval of phenol and 4-fluorophenol may occur after 240 h of treatment. Superoxide dismutase (SOD) and CAT activities, malondialdehyde (MDA) content, and reactive oxygen species (ROS) in algal cells in the phenol- and 4-fluorophenol-treated groups were similar or lower than in the control group. Furthermore, photosynthetic pigment and glycerophospholipid contents were significantly upregulated in both phenol- and 4-fluorophenol-treated groups, as indicated by the metabolomic analysis of C. pyrenoidosa, resulting in the vigorous growth of algal cells compared to the control group. Therefore, C. pyrenoidosa can be an excellent biosorbent for phenol and 4-fluorophenol.","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41791236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wongchai Anupong, Abolfazl Mehbodniya, Julian L. Webber, A. Bostani, Gaurav Dhiman, Bharat Singh, Murali Dharan A. R.
The amount of particles and organic matter in wash-waters and effluent from the processing of fruits and vegetables determines whether they need to be treated to fulfil regulatory standards for their intended use. This research proposes a novel technique in photovoltaic cell-based renewable energy in saline water analysis using the oxidation process and deep learning techniques. Here, the saline water oxidation is carried out based on photovoltaic cell-based renewable and saline water analysis is carried out using Markov fuzzy-based Q-radial function neural networks (MFQRFNN). The plan is entirely web-oriented to enable better control and effective monitoring of water consumption. This monitoring makes use of a communication system that collects data in the form of irregularly spaced time series. Experimental analysis has been carried out based on water salinity data in terms of accuracy, precision, recall, specificity, computational cost, and kappa coefficient.
{"title":"Deep learning algorithms were used to generate photovoltaic renewable energy in saline water analysis via an oxidation process","authors":"Wongchai Anupong, Abolfazl Mehbodniya, Julian L. Webber, A. Bostani, Gaurav Dhiman, Bharat Singh, Murali Dharan A. R.","doi":"10.2166/wrd.2023.071","DOIUrl":"https://doi.org/10.2166/wrd.2023.071","url":null,"abstract":"\u0000 The amount of particles and organic matter in wash-waters and effluent from the processing of fruits and vegetables determines whether they need to be treated to fulfil regulatory standards for their intended use. This research proposes a novel technique in photovoltaic cell-based renewable energy in saline water analysis using the oxidation process and deep learning techniques. Here, the saline water oxidation is carried out based on photovoltaic cell-based renewable and saline water analysis is carried out using Markov fuzzy-based Q-radial function neural networks (MFQRFNN). The plan is entirely web-oriented to enable better control and effective monitoring of water consumption. This monitoring makes use of a communication system that collects data in the form of irregularly spaced time series. Experimental analysis has been carried out based on water salinity data in terms of accuracy, precision, recall, specificity, computational cost, and kappa coefficient.","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48431611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zixi Yuan, Ruixuan Li, Shuangshuang Li, Denggao Qiu, Guanyi Li, Chun Wang, J. Ni, Yingxue Sun, Hong-Ying Hu
Zinc is one of the heavy metals present in textile wastewater with high concentrations. However, the chronic toxic effects of zinc on aquatic vertebrates are still ambiguous. Zinc accumulation in zebrafish after chronic zinc exposure and toxic effects on the intestines, muscles, and gills were investigated in this study. The results showed that a significant accumulation of zinc in the intestine, muscle, and gill was observed after 25 d of zinc exposure. The toxic effects of zinc were mainly in the form of zinc-induced oxidative stress in zebrafish, potential neurotoxicity, and changes in intestinal microbes. Significant changes in the levels of superoxide dismutase, catalase, metallothionein, glutathione, and malondialdehyde indicated that zinc damaged the antioxidant system of adult zebrafish. Zinc exposure resulted in a significant decrease in acetylcholinesterase activity and abnormal neural signaling. Furthermore, zinc exposure resulted in increased intestinal microbial richness and decreased the Simpson index in adult zebrafish. At the phylum and genus levels, the predominant microbes in the intestine are altered by zinc. In summary, this study provides an analysis of the toxic effects of chronic zinc exposure on adult zebrafish and the potential mechanisms, which are important for assessing the dual effects of zinc on aquatic organisms.
{"title":"Oxidative stress, neurotoxicity, and intestinal microbial regulation after a chronic zinc exposure: an experimental study on adult zebrafish (Danio rerio)","authors":"Zixi Yuan, Ruixuan Li, Shuangshuang Li, Denggao Qiu, Guanyi Li, Chun Wang, J. Ni, Yingxue Sun, Hong-Ying Hu","doi":"10.2166/wrd.2023.075","DOIUrl":"https://doi.org/10.2166/wrd.2023.075","url":null,"abstract":"\u0000 Zinc is one of the heavy metals present in textile wastewater with high concentrations. However, the chronic toxic effects of zinc on aquatic vertebrates are still ambiguous. Zinc accumulation in zebrafish after chronic zinc exposure and toxic effects on the intestines, muscles, and gills were investigated in this study. The results showed that a significant accumulation of zinc in the intestine, muscle, and gill was observed after 25 d of zinc exposure. The toxic effects of zinc were mainly in the form of zinc-induced oxidative stress in zebrafish, potential neurotoxicity, and changes in intestinal microbes. Significant changes in the levels of superoxide dismutase, catalase, metallothionein, glutathione, and malondialdehyde indicated that zinc damaged the antioxidant system of adult zebrafish. Zinc exposure resulted in a significant decrease in acetylcholinesterase activity and abnormal neural signaling. Furthermore, zinc exposure resulted in increased intestinal microbial richness and decreased the Simpson index in adult zebrafish. At the phylum and genus levels, the predominant microbes in the intestine are altered by zinc. In summary, this study provides an analysis of the toxic effects of chronic zinc exposure on adult zebrafish and the potential mechanisms, which are important for assessing the dual effects of zinc on aquatic organisms.","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46718586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kun Dong, Wubin Wang, Min Li, Xinyu Zhou, Yutong Huang, Guozhi Zhou, Yufeng Xu, Dunqiu Wang, Hai-xiang Li
In this work, Phragmites australis and Vallisneria natans were selected as the research objects and were cultured for 10 d under 0.10 μg L−1 sulfadiazine (SD) stress in a simulated surface flow wetland reactor. SD degradation was conducted at pH = 7 and 25 °C for 96 h. Each plant group conformed to the first-order kinetic model of degradation, and the degradation rate increased with time, reaching the maximum at 96 h. At 96 h, the degradation rate of P. australis communities was higher than that of V. natans. SD metabolites showed that the degradation pathways in the plant rhizosphere were mainly hydroxylation, aminolation, and S–N bond cleavage. In the analysis of rhizosphere bacterial community structure, the bacterial phyla that could degrade antibiotics accounted for a large proportion. Compared with before degradation, the dominant phylum and genus did not change after degradation (96 h), but their abundance changed to varying degrees, and new genera appeared in the P. australis group. This research provides a reference for the degradation of antibiotics in karst areas and new information on the mechanism of SA degradation in the plant rhizosphere.
{"title":"Degradation of sulfonamide antibiotics in the rhizosphere of two dominant plants in Huixian karst wetland, Guangxi, China","authors":"Kun Dong, Wubin Wang, Min Li, Xinyu Zhou, Yutong Huang, Guozhi Zhou, Yufeng Xu, Dunqiu Wang, Hai-xiang Li","doi":"10.2166/wrd.2023.062","DOIUrl":"https://doi.org/10.2166/wrd.2023.062","url":null,"abstract":"\u0000 In this work, Phragmites australis and Vallisneria natans were selected as the research objects and were cultured for 10 d under 0.10 μg L−1 sulfadiazine (SD) stress in a simulated surface flow wetland reactor. SD degradation was conducted at pH = 7 and 25 °C for 96 h. Each plant group conformed to the first-order kinetic model of degradation, and the degradation rate increased with time, reaching the maximum at 96 h. At 96 h, the degradation rate of P. australis communities was higher than that of V. natans. SD metabolites showed that the degradation pathways in the plant rhizosphere were mainly hydroxylation, aminolation, and S–N bond cleavage. In the analysis of rhizosphere bacterial community structure, the bacterial phyla that could degrade antibiotics accounted for a large proportion. Compared with before degradation, the dominant phylum and genus did not change after degradation (96 h), but their abundance changed to varying degrees, and new genera appeared in the P. australis group. This research provides a reference for the degradation of antibiotics in karst areas and new information on the mechanism of SA degradation in the plant rhizosphere.","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67991590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jinjun Zhou, Yali Pang, G. Fu, Hao Wang, Yongxiang Zhang, F. Memon
Over the past 30 years, water security issue in Chinese cities has become increasingly serious, largely due to rapid urbanization, population growth and disproportionate investment in water infrastructure. Urban rainwater harvesting (URWH), a household and community-level rainwater management measure, has been widely used during this period. This study provides a critical review of the policies, methods, technology, construction, implementation and benefits related to URWH in China. We show that URWH in China has gone through three phases over the past 30 years: an initial development phase, a rapid development phase and a sponge city construction phase. URWH research has focused mainly on rainwater harvesting, storage, utilization, management and other technologies, with limited attention to policy and benefit analysis. However, the scale of URWH construction and implementation in China remains small and needs further development. Currently, while URWH assessments cover social, ecological and environmental benefits, the economic benefits need to be further strengthened. The next step in URWH implementation should be to strengthen research and development of policy, legal and design standards. This study provides guidance for the implementation of URWH in Chinese cities and other cities alike in developing countries.
{"title":"A review of urban rainwater harvesting in China","authors":"Jinjun Zhou, Yali Pang, G. Fu, Hao Wang, Yongxiang Zhang, F. Memon","doi":"10.2166/wrd.2023.041","DOIUrl":"https://doi.org/10.2166/wrd.2023.041","url":null,"abstract":"\u0000 Over the past 30 years, water security issue in Chinese cities has become increasingly serious, largely due to rapid urbanization, population growth and disproportionate investment in water infrastructure. Urban rainwater harvesting (URWH), a household and community-level rainwater management measure, has been widely used during this period. This study provides a critical review of the policies, methods, technology, construction, implementation and benefits related to URWH in China. We show that URWH in China has gone through three phases over the past 30 years: an initial development phase, a rapid development phase and a sponge city construction phase. URWH research has focused mainly on rainwater harvesting, storage, utilization, management and other technologies, with limited attention to policy and benefit analysis. However, the scale of URWH construction and implementation in China remains small and needs further development. Currently, while URWH assessments cover social, ecological and environmental benefits, the economic benefits need to be further strengthened. The next step in URWH implementation should be to strengthen research and development of policy, legal and design standards. This study provides guidance for the implementation of URWH in Chinese cities and other cities alike in developing countries.","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44114355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sarvesh P. S. Rajput, Julian L. Webber, A. Bostani, Abolfazl Mehbodniya, M. Arumugam, Preethi Nanjundan, Adimas Wendimagegen
Water is a vital resource that makes it possible for human life forms to exist. The need for freshwater consumption has significantly increased in recent years. Seawater treatment facilities are less dependable and efficient. Deep learning systems have the potential to increase the efficiency as well as the accuracy of salt particle analysis in saltwater, which will benefit water treatment plant performance. This research proposed a novel method for optimization and modelling of the treatment process for saline water based on water level data analysis using machine learning (ML) techniques. Here, the optimization and modelling are carried out using molecular separation-based reverse osmosis Bayesian optimization. Then the modelled water saline particle analysis has been carried out using back propagation with Kernelized support swarm machine. Experimental analysis is carried out based on water salinity data in terms of accuracy, precision, recall, and specificity, computational cost, Kappa coefficient. Proposed technique attained an accuracy of 92%, precision of 83%, recall of 78%, specificity of 81%, Computational cost of 59%, Kappa coefficient of 78%.
{"title":"Using machine learning architecture to optimize and model the treatment process for saline water level analysis","authors":"Sarvesh P. S. Rajput, Julian L. Webber, A. Bostani, Abolfazl Mehbodniya, M. Arumugam, Preethi Nanjundan, Adimas Wendimagegen","doi":"10.2166/wrd.2022.069","DOIUrl":"https://doi.org/10.2166/wrd.2022.069","url":null,"abstract":"\u0000 Water is a vital resource that makes it possible for human life forms to exist. The need for freshwater consumption has significantly increased in recent years. Seawater treatment facilities are less dependable and efficient. Deep learning systems have the potential to increase the efficiency as well as the accuracy of salt particle analysis in saltwater, which will benefit water treatment plant performance. This research proposed a novel method for optimization and modelling of the treatment process for saline water based on water level data analysis using machine learning (ML) techniques. Here, the optimization and modelling are carried out using molecular separation-based reverse osmosis Bayesian optimization. Then the modelled water saline particle analysis has been carried out using back propagation with Kernelized support swarm machine. Experimental analysis is carried out based on water salinity data in terms of accuracy, precision, recall, and specificity, computational cost, Kappa coefficient. Proposed technique attained an accuracy of 92%, precision of 83%, recall of 78%, specificity of 81%, Computational cost of 59%, Kappa coefficient of 78%.","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48515104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fluorescence analysis is a sensitive and selective method that provides abundant information and does not result in sample destruction. This technology is widely used in the detection of dissolved organic matter in the environment. Some challenges with fluorescence analysis are its higher sensitivity so that it is sensitive to background signals, the difficulty of extracting useful information, and the complexity and diversity of analytical methods. This review summarizes recent applications of fluorescence analysis in water research for the characterization of pollutants, evaluation of water treatment processes, and monitoring of emerging contaminants such as drugs, disinfection by-products, and toxicity. Two-dimensional fluorescence and excitation–emission matrix fluorescence analysis methods are discussed, along with their advantages and disadvantages, and application scope. Methods for sample processing, instrument calibration, and data analysis are proposed. This review is an important source of information for the application of fluorescence technology in water research such as the analysis of emerging contaminants.
{"title":"Fluorescence analysis for water characterization: measurement processes, influencing factors, and data analysis","authors":"Zibo Jing, Wen Wang, Yujia Nong, Ping Zhu, Yao Lu, Qianyuan Wu","doi":"10.2166/wrd.2022.065","DOIUrl":"https://doi.org/10.2166/wrd.2022.065","url":null,"abstract":"\u0000 Fluorescence analysis is a sensitive and selective method that provides abundant information and does not result in sample destruction. This technology is widely used in the detection of dissolved organic matter in the environment. Some challenges with fluorescence analysis are its higher sensitivity so that it is sensitive to background signals, the difficulty of extracting useful information, and the complexity and diversity of analytical methods. This review summarizes recent applications of fluorescence analysis in water research for the characterization of pollutants, evaluation of water treatment processes, and monitoring of emerging contaminants such as drugs, disinfection by-products, and toxicity. Two-dimensional fluorescence and excitation–emission matrix fluorescence analysis methods are discussed, along with their advantages and disadvantages, and application scope. Methods for sample processing, instrument calibration, and data analysis are proposed. This review is an important source of information for the application of fluorescence technology in water research such as the analysis of emerging contaminants.","PeriodicalId":17556,"journal":{"name":"Journal of Water Reuse and Desalination","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67991584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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