Water Cycle最新文献

{"title":"Water Data & Facts: A new type of smart article","authors":"","doi":"10.1016/j.watcyc.2023.01.003","DOIUrl":"10.1016/j.watcyc.2023.01.003","url":null,"abstract":"","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"4 ","pages":"Pages 37-38"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46101574","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}

{"title":"Evaluation methods of inhibition to microorganisms in biotreatment processes: A review","authors":"Zhuowei Zhang ,&nbsp;Yang Yang ,&nbsp;Hongbo Xi ,&nbsp;Yin Yu ,&nbsp;Yudong Song ,&nbsp;Changyong Wu ,&nbsp;Yuexi Zhou","doi":"10.1016/j.watcyc.2023.02.004","DOIUrl":"10.1016/j.watcyc.2023.02.004","url":null,"abstract":"<div><p>Inhibition to microorganisms in biotreatment processes (IMB) refers to the extent to which the toxic contaminants in wastewater harm the microorganisms in biotreatment, which has been widely concerned in recent years. The main classifications, analytical procedures, characteristics and current applications of evaluation methods of IMB were critically summarized. Then the challenges and prospects of measurement approaches to IMB were highlighted. It is expected to contribute to a more accurate assessment of the inhibition effect, and help recommend IMB as an indicator for future indirect emission standards.</p></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"4 ","pages":"Pages 70-78"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46019574","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}

{"title":"How to select ideal model organic matters for membrane fouling research on water and wastewater treatment","authors":"Yu-Qing Xu ,&nbsp;Yin-Hu Wu ,&nbsp;Xin Tong ,&nbsp;Li-Wei Luo ,&nbsp;Hao-Bin Wang","doi":"10.1016/j.watcyc.2023.02.002","DOIUrl":"10.1016/j.watcyc.2023.02.002","url":null,"abstract":"<div><p>Model organic matters (MOMs) are widely used in membrane fouling research for water and wastewater treatment. In this study, we aimed to define the characteristics of ideal MOMs and propose principles for selecting appropriate ones for research. The MOMs were classified into three categories based on their composition. Among these, bovine serum albumin, sodium alginate, and humic acid are the most commonly used. However, some of them lack representativeness of the main organics or main foulants in water and wastewater, whereas others lack the similarity of fouling behavior with water and wastewater. The characteristics of ideal MOMs are summarized as follows: 1. they actually exist in water or wastewater and contribute substantially to membrane fouling; 2. they demonstrate fouling behavior similar to that of water and wastewater; 3. they are easy to access and produce. To select appropriate MOMs, two principles were proposed: A. the main foulants in water and wastewater, such as standard extracellular polymeric substances (EPS) and standard effluent organic matters (EfOM) and B. the organic matter that has similar fouling behaviors to water and wastewater, such as xanthan gum and guar gum.</p></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"4 ","pages":"Pages 55-59"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45405411","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}

{"title":"Erratum regarding Declaration of Competing Interest statements in previously published articles","authors":"","doi":"10.1016/j.watcyc.2023.11.002","DOIUrl":"10.1016/j.watcyc.2023.11.002","url":null,"abstract":"","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"4 ","pages":"Pages 221-222"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666445323000272/pdfft?md5=374f666e81a09f09072c5ab00ebc0ebd&pid=1-s2.0-S2666445323000272-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138609617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum regarding Declaration of Competing Interest statements in the published articles","authors":"","doi":"10.1016/j.watcyc.2023.11.003","DOIUrl":"10.1016/j.watcyc.2023.11.003","url":null,"abstract":"","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"4 ","pages":"Page 223"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666445323000284/pdfft?md5=2ef6ea4dfe17f9035ff6f65f5b223f3d&pid=1-s2.0-S2666445323000284-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138619028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impacts of hydraulic retention time and inflow water quality on algal growth in a shallow lake supplied with reclaimed water","authors":"Xiao-Na Zheng ,&nbsp;De-Xiu Wu ,&nbsp;Chong-Qing Huang ,&nbsp;Qian-Yuan Wu ,&nbsp;Yun-Tao Guan","doi":"10.1016/j.watcyc.2022.04.004","DOIUrl":"10.1016/j.watcyc.2022.04.004","url":null,"abstract":"<div><p>Landscape lakes supplied with reclaimed water often face the threats of algal blooms. To guarantee the water quality in an artificial shallow lake (Lake M), algal growth and water quality changes were predicted by Delft3D. When the concentrations of influent total nitrogen (TN) and total phosphorous (TP) were fixed at 10 ​mg ​N/L and 0.2 ​mg ​P/L, respectively, increases in the hydraulic retention time (HRT) which was induced by water depth increased algal growth. The average algal density in Lake M was 6.42 ​× ​10⁴ ​cells/mL when the HRT was 4 ​d, which increased to 2.14 ​× ​10⁵ ​cells/mL when the HRT was 8 ​d. These results showed that the shallowness of the lake contributed positively to algae control. The shallower water depth came with the shorter HRT while nutrient load and light intensity were increased subsequently, which usually favor algal growth but not the dominant factors of algal density in Lake M. When the influent TN concentration was between 2 and 15 ​mg ​N/L of which nitrate changed, the HRT was fixed at 8 ​d, and the influent TP concentration was 0.2 ​mg/L, the algal density was approximately 2 ​× ​10⁵ ​cells/mL. Algae were not sensitive to changes in the influent TN concentration, and TN should be considered as a secondary factor in algal growth. Increases in the TP concentration promoted algal growth because phosphorous is the dominant nutrient for algae to acquire from reclaimed water if there is sufficient nitrogen. When the HRT of the lake was 8 ​d and the influent TN concentration was 10 ​mg/L, the average algal density in the lake was on the order of 10⁴ ​cells/mL as the TP concentration was 0.1 ​mg/L. Because the water depth determines the HRT, it should be carefully considered during design and construction of artificial lakes. Influent phosphorus should be monitored to control algal blooms during maintenance of artificial lakes.</p></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"3 ","pages":"Pages 71-78"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666445322000083/pdfft?md5=b148aca79413299c26611a07984512a2&pid=1-s2.0-S2666445322000083-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43335924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Removal of tetracycline hydrochloride using S–g-C3N4/PTFE membrane under visible light irradiation","authors":"Shuhua Chen,&nbsp;Fang Liu,&nbsp;Rongli Cui,&nbsp;Benjie Zhu,&nbsp;Xuehui You","doi":"10.1016/j.watcyc.2022.01.001","DOIUrl":"10.1016/j.watcyc.2022.01.001","url":null,"abstract":"<div><p>As a type of medicine, tetracycline (TC) is widely used in the world, but it is not easy to degrade due to its poor biochemical properties and stable physicochemical properties. In this work, graphite sulfide carbon nitride compound (S–g-C₃N₄/PTFE membrane) photocatalyst, formed from a PTFE membrane and graphite sulfide carbon nitride (S–g-C₃N₄), was prepared for the treatment of TC in wastewater. A variety of characterization methods were used to analyze the catalyst, such as scanning electron microscope (SEM), X-ray diffractometer (XRD), infrared spectrometer (FTIR), X-ray photoelectron spectroscopy (XPS), etc. Photocatalytic experiments showed that the photocatalytic degradation extent was 98.1% when the catalyst dosage was 1 ​g/L, the loading of S–g-C₃N₄ was 50 ​mg, pH was 5 and the initial concentration of TC was 10 ​mg/L. Moreover, S–g-C₃N₄/PTFE membrane has good recovery performance and photocatalytic stability, and has good degradation performance for most pollutants in urban sewage treatment plants. S–g-C₃N₄/PTFE membrane will have good application prospects in contaminated water environments because of its advantages of excellent degradation ability, easy regeneration and separation from the water phase.</p></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"3 ","pages":"Pages 8-17"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666445322000010/pdfft?md5=3c2927c659ded627cfb636b00de99162&pid=1-s2.0-S2666445322000010-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45737851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Degradation of hexafluoropropylene oxide tetrameric acid (HFPO-TeA) using electrocatalytic ozone technique","authors":"Zehong Yang ,&nbsp;Shuting Guo ,&nbsp;Xiaolin You ,&nbsp;Qiongfang Zhuo ,&nbsp;Bo Yang ,&nbsp;Jiaming Huang ,&nbsp;Junfeng Niu","doi":"10.1016/j.watcyc.2022.08.001","DOIUrl":"10.1016/j.watcyc.2022.08.001","url":null,"abstract":"<div><p>Hexafluoropropylene oxide tetrameric acid (HFPO-TeA) is an alternative to perfluorooctanecarboxylic acid (PFOA) and is commonly used in the production of perfluoropolymers. In this study, the performances of ozone oxidation, electrochemical oxidation, and electrocatalytic ozone techniques in the degradation of HFPO-TeA were compared. The experimental results indicated that the electrocatalytic ozone technique was best. The effects of different current densities, ozone concentrations, electrolyte types, and initial pollutant concentrations on HFPO-TeA degradation were investigated. The results showed that the ratio of HFPO-TeA degradation reached 95.9% after electrolysis for 120 ​min for an initial HFPO-TeA concentration of 100 ​mg/L, a reaction volume of 120 ​mL, an applied current density of 10 ​mA/cm², and an ozone concentration of 20 ​mg/L. The intermediate products detected were hexafluoropropylene oxide dimeric acid [C₃F₇OCF(CF₃)COO⁻], pentafluoropropionic acid [C₂F₅COO⁻], and trifluoroacetic acid [CF₃COO⁻]. The mechanisms involved in HFPO-TeA degradation include direct electron transfer, indirect oxidation mediated by hydroxyl radicals (·OH), and ozone oxidation.</p></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"3 ","pages":"Pages 106-111"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666445322000149/pdfft?md5=bb1da99380a1f63c42df596593ebbea7&pid=1-s2.0-S2666445322000149-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48639014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of climate change on water availability in Bilate catchment, Southern Ethiopia","authors":"Muluneh Legesse Edamo ,&nbsp;Kedir Mohammed Bushira ,&nbsp;Tigistu Yisihak Ukumo ,&nbsp;Mesfin Amaru Ayele ,&nbsp;Matusal Arja Alaro ,&nbsp;Habtamu Bogale Borko","doi":"10.1016/j.watcyc.2022.06.001","DOIUrl":"10.1016/j.watcyc.2022.06.001","url":null,"abstract":"<div><p>This study aims to evaluate the effect of climate change on water availability in the Bilate catchment, Southern Ethiopia. The bias-corrected outputs of five climate models and their ensemble mean were used for the baseline (1976–2005), the 2050s, and 2080s under Representative Concentration Pathways (RCP) for both RCP4.5 and RCP8.5 scenarios. A semi-distributed physically-based Hydrologic Engineering Center of Hydrologic Modeling System (HEC-HMS) was used to perform rainfall-runoff simulation after sensitivity analysis, calibration, and validation. The forecasted temperatures of the watershed will increase in the future. The forecasting from all the climate models indicated that rainfall of the watershed will increase by 34% in the 2050s and 21% in 2080s under RCP4.5 and RCP8.5 respectively. The discharge projection for almost all climate models shows an increment up to 27% whereas it will decline up to 30% under RCP 4.5 and RCP8.5 respectively in the 2050s. In the 2080s, nearly all climate models will show an increment up to 25% in discharge whereas it will decrease up to 32% under RCP4.5 and RCP8.5 respectively. This research paves the way to reduce the impacts of changing climate for sustainable water resources management.</p></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"3 ","pages":"Pages 86-99"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666445322000113/pdfft?md5=19f98eceaaccb679f23af222a14208fa&pid=1-s2.0-S2666445322000113-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49503527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mixing starch wastewaters to balance nutrients for improving nutrient removal, microalgae growth and accumulation of high value-added products","authors":"Qingyu Zhai ,&nbsp;Yu Hong ,&nbsp;Xiaoyan Wang ,&nbsp;Qiao Wang ,&nbsp;Guangpu Zhao ,&nbsp;Xiaoya Liu ,&nbsp;Hongkai Zhang","doi":"10.1016/j.watcyc.2022.09.004","DOIUrl":"10.1016/j.watcyc.2022.09.004","url":null,"abstract":"<div><p>Unbalanced nutrients limited the starch wastewater (SW) treatment and nutrient recovery by microalgae. The higher carbon content in SW resulted in a nutritional imbalance for the growth of microalgae. While, the anaerobic wastewater with less organic content made up for this shortcoming. Mixing the two could improve the C/N ratio of wastewater, promoted the synthesis of microalgal biomass and the purification effect of wastewater. In this study, five species of microalgae (<em>Chlorella</em> sp. HQ, <em>Scenedesmus</em> sp. LX1, <em>Tribonema</em> sp., <em>Anabaena</em> sp. and <em>Anabaena flos-aquae</em>) suitable for growth in SW were compared, and the optimal microalgae (<em>Chlorella</em> sp. HQ) was selected out to be cultured in corn SW (CSW), modified SW (MSW), anaerobic wastewater (AW) and their mixtures. The results showed that the subculture biomass of <em>Chlorella</em> sp. HQ in CSW increased from 2.15 to 2.61 ​g/L. In mixed wastewater, CSW ​+ ​MSW ​+ ​AW improved the biomass of microalgae with CSW as a culture medium by 0.3-fold (to 2.79 ​g/L), and the algal density was as high as 1.57 ​× ​10⁷ ​cells/mL. In addition, 75.49% of chemical oxygen demand (COD), 62.00% of total nitrogen (TN), 76.47% of total phosphorus (TP), and 56.57% of ammonia nitrogen (NH₄⁺-N) were removed by microalgae. The yields of lipids, polysaccharides, and proteins were 1.34, 1.76, and 1.09 times (0.90 ​g/L, 0.30 ​g/L, and 1.19 ​g/L) that of CSW as a culture medium, respectively. These results implied that mixing different sections of SWs to balance nutrients levels for microalgae cultivation and wastewater treatment could be an efficient and economical mode.</p></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"3 ","pages":"Pages 151-159"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666445322000198/pdfft?md5=3e84b12d10410c99f07b147e891b29c6&pid=1-s2.0-S2666445322000198-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42622489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}