Water Quality Research Journal最新文献_第6页

Utility of a multi-tracer approach as a component of adaptive monitoring for municipal wastewater impacts 多示踪剂方法作为自适应监测城市污水影响的组成部分的效用

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-06-16 DOI: 10.2166/wqrj.2020.004

R. Tanna, M. Moncur, S. J. Birks, J. Gibson, C. Ptacek, B. Mayer, M. Wieser, F. Wrona, K. Munkittrick

引用次数: 7

Kinetic and equilibrium studies on the adsorption of Direct Red 23 dye from aqueous solution using montmorillonite nanoclay 蒙脱土纳米粘土吸附直接红23染料的动力学与平衡研究

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-05-01 DOI: 10.2166/wqrj.2019.008

A. Mahvi, A. Dalvand

引用次数: 22

A global scan of how the issue of nutrient loading and harmful algal blooms is being addressed by governments, non-governmental organizations, and volunteers 对各国政府、非政府组织和志愿者如何解决营养负荷和有害藻华问题的全球扫描

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-02-01 DOI: 10.2166/wqrj.2019.013

É. Foulon, A. Rousseau, Glenn A. Benoy, R. North

{"title":"A global scan of how the issue of nutrient loading and harmful algal blooms is being addressed by governments, non-governmental organizations, and volunteers","authors":"É. Foulon, A. Rousseau, Glenn A. Benoy, R. North","doi":"10.2166/wqrj.2019.013","DOIUrl":"https://doi.org/10.2166/wqrj.2019.013","url":null,"abstract":"\u0000 Harmful algal blooms (HABs) in aquatic ecosystems are of concern worldwide. This review deals with how jurisdictions around the world are addressing this water quality issue to inform recommendations regarding nutrient loading and HABs in Missisquoi Bay-Lake Champlain and Lake Memphremagog; transboundary lakes located in the USA and Canada that suffer from symptoms of eutrophication. A global scan of the literature resulted in the consideration of 12 case studies of large water bodies within large watersheds, excluding in-lake geoengineering approaches. Although all of the systems experience excessive nutrient loading, they vary in two key ways: sources of nutrients and manifestations of eutrophication ranging from HABs, to limited recreational uses, to the additional complexity of internal loadings and fish kills, up to drinking water shutdowns. The case studies were analyzed with respect to four categories of approaches, namely: (i) regulatory; (ii) incentive-based; (iii) risk mitigation; and (iv) outreach, engagement, and educational. We found that the management frameworks are based on integrated watershed management planning and national standards. National water quality standards, however, are not stringent enough to prevent HABs. Overall, identified case studies did not successfully remediate HABs, they simply managed them.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/wqrj.2019.013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48126886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Water quality response to river flow regime at three major rivers in Alberta 阿尔伯塔省三条主要河流对河流流态的水质响应

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-02-01 DOI: 10.2166/wqrj.2019.033

S. Rostami, Jianxun He, Q. Hassan

{"title":"Water quality response to river flow regime at three major rivers in Alberta","authors":"S. Rostami, Jianxun He, Q. Hassan","doi":"10.2166/wqrj.2019.033","DOIUrl":"https://doi.org/10.2166/wqrj.2019.033","url":null,"abstract":"\u0000 Both anthropogenic activities and natural factors affect river water in quantity and quality, while anthropogenic activities have been often blamed to cause water quality temporal degradation. In addition, riverine water quality displays intra-annual/seasonal variations, which are often more prominent than inter-annual variations. The intra-annual variations in water quality, which are attracting the attention of managers and policy-makers, beg the question of how to better manage riverine water quality at a finer time resolution. The natural factors, in particular, the hydro-meteorological variables, could be the primary drivers of the intra-annual variations of riverine water quality. Therefore, this paper examined the association between riverine water quality and one hydro-meteorological variable (flow) with the focus on their relationship at the intra-annual timescale on three selected rivers in Alberta, Canada. The results demonstrated that flow drives intra-annual variation of riverine water quality in general. Moreover, some water quality parameters responded to flow distinctively at three flow regimes (low, medium, and high flows). Water quality parameters were categorized into eight groups according to their responses to flow at the flow regimes. These implied the challenges in water quality management while providing insight into how to formulate more effective water management strategies.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/wqrj.2019.033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48582705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effects of habitat and pulp and paper mill contamination on a population of brook stickleback (Culaea inconstans) 栖息地、纸浆厂和造纸厂污染对溪刺鱼种群的影响

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-02-01 DOI: 10.2166/WQRJ.2019.005

Gillian Z MacDonald, N. Hogan, M. V. D. Heuvel

{"title":"Effects of habitat and pulp and paper mill contamination on a population of brook stickleback (Culaea inconstans)","authors":"Gillian Z MacDonald, N. Hogan, M. V. D. Heuvel","doi":"10.2166/WQRJ.2019.005","DOIUrl":"https://doi.org/10.2166/WQRJ.2019.005","url":null,"abstract":"\u0000 This study examined the responses of a population of brook stickleback (Culaea inconstans) exposed to pulp mill effluent at Jackfish Bay, Lake Superior, Canada, in May 2007 and May 2011. Brook stickleback were extirpated from the effluent-receiving site, presumably due to anoxia after this period. Females at the effluent-receiving site had significantly larger gonad sizes in 2007 and 2011. In 2011, effluent-exposed female gonadal development was significantly advanced when compared with reference sites; they were the second most mature when compared among three different reference sites. Analysis of 7-ethoxyresorufin-O-deethylase activity revealed that effluent-receiving site females had greater CYP1A induction in 2007 and significantly greater CYP1A induction in 2011. Effluent-receiving site males showed significantly reduced CYP1A induction in 2007 and significantly greater induction in 2011. Chemical evaluation of sediment from the receiving environment showed elevated levels of resin acids and the polycyclic aromatic hydrocarbon, retene. Higher condition factors and more mature gonads were consistent with higher winter and spring temperatures modified by effluent or by lake vs. stream environments. Overall, effects on effluent-exposed brook stickleback were not consistent with reported effects in white sucker exposed to the same effluent in previous studies.\u0000 This article has been made Open Access thanks to the kind support of CAWQ/ACQE (https://www.cawq.ca).","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/WQRJ.2019.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48031075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

The removal efficiency of total coliform, Escherichia coli, suspended solids, UV254 and colour using Zeliac filter in riverbank filtration system Zeliac过滤器在河岸过滤系统中对总大肠菌群、大肠杆菌、悬浮物、UV254和色度的去除效率

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-02-01 DOI: 10.2166/WQRJ.2019.052

H. A. Aziz, N. Ibrahim, M. Alazaiza, Cheong Kah Win

引用次数: 2

Exploring private water wells for fecal sources and evidence of pathogen presence in the context of current testing practices for potability in Ontario 在目前安大略省饮用水测试实践的背景下，探索私人水井的粪便来源和病原体存在的证据

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-02-01 DOI: 10.2166/WQRJ.2019.035

Sophie Felleiter, K. Mcdermott, Geof Hall, P. Sheth, A. Majury

{"title":"Exploring private water wells for fecal sources and evidence of pathogen presence in the context of current testing practices for potability in Ontario","authors":"Sophie Felleiter, K. Mcdermott, Geof Hall, P. Sheth, A. Majury","doi":"10.2166/WQRJ.2019.035","DOIUrl":"https://doi.org/10.2166/WQRJ.2019.035","url":null,"abstract":"\u0000 Private water wells provide drinking water for an estimated 4.1 million households in Canada yet remain understudied in the context of microbial water quality or human health impacts. As there exists little systematic surveillance for enteric infections or outbreaks related to well water sources, consumers may be at risk of waterborne infectious diseases. A standard protocol in Ontario requires 200 mL of water, collected, and submitted by well owners, half of which is used to analyze for Escherichia coli and total coliforms (TCs). The aim of this study was to determine the efficacy of testing small water volumes and to survey for other contaminants in addition to bacterial indicators to inform pathogen prevalence and fecal source in drinking water wells. Samples were assessed for E. coli and TCs, by culture, and genetic markers of Bacteroides spp., Campylobacter spp., Salmonella spp., and Shiga toxin-producing E. coli, using qPCR. The source of fecal contamination varied by the geographic region and may be explained by septic tank density and underlying geology, among other factors. A small number of samples (1.9%) showed the evidence of contamination with enteric pathogens. Lastly, E. coli measured by qPCR, as opposed to culture, correlated more strongly to Bacteroides markers.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":"1 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/WQRJ.2019.035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43263533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Remediation of bio-refinery wastewater containing organic and inorganic toxic pollutants by adsorption onto chitosan-based magnetic nanosorbent 壳聚糖基磁性纳米吸附剂吸附修复含有机和无机有毒污染物的生物炼油厂废水

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-02-01 DOI: 10.2166/wqrj.2019.003

A. Kumar, Kongkona Saikia, Gerard Neeraj, H. Cabana, Vaidyanathan Kumar

{"title":"Remediation of bio-refinery wastewater containing organic and inorganic toxic pollutants by adsorption onto chitosan-based magnetic nanosorbent","authors":"A. Kumar, Kongkona Saikia, Gerard Neeraj, H. Cabana, Vaidyanathan Kumar","doi":"10.2166/wqrj.2019.003","DOIUrl":"https://doi.org/10.2166/wqrj.2019.003","url":null,"abstract":"The novelty of the current study deals with the application of magnetic nanosorbent, chitosan-coated magnetic nanoparticles (cMNPs), to be utilized for the management of lignocellulosic bio-refinery wastewater (LBW) containing three heavy metals and 26 phenolic compounds. The magnetic property of the adsorbent, confirmed by elemental and vibrating sample magnetometer analysis (saturation magnetization of 26.96 emu/g), allows easy separation of the particles in the presence of an external magnetic field. At pH 6.0, with optimized adsorbent dosage of 2.0 g/L and 90 min contact time, maximum removal of phenol (46.2%), copper (42.2%), chromium (18.7%) and arsenic (2.44%) was observed. The extent of removal of phenolic compounds was in the order: polysubstituted > di-substituted > mono-substituted > cresol > phenol. Overall, the adsorption capacity (qe) of cMNPs varies among the different contaminants in the following manner: copper (1.03 mg/g), chromium (0.20 mg/g), arsenic (0.04 mg/g) and phenol (0.56 mg/g). Post-adsorption, retrieving the cMNPs using an external magnetic field followed by single-step desorption via acid–base treatment is attractive for implementation in industrial settings. Reusability of the adsorbent was studied by recycling the cMNPs for five consecutive rounds of adsorption followed by desorption, at the end of which, cMNPs retained 20% of their initial adsorption capacity.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/wqrj.2019.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45809351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Prediction of dissolved oxygen in urban rivers at the Three Gorges Reservoir, China: extreme learning machines (ELM) versus artificial neural network (ANN) 三峡库区城市河流溶解氧预测:极限学习机与人工神经网络的对比

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-02-01 DOI: 10.2166/WQRJ.2019.053

Senlin Zhu, S. Heddam

{"title":"Prediction of dissolved oxygen in urban rivers at the Three Gorges Reservoir, China: extreme learning machines (ELM) versus artificial neural network (ANN)","authors":"Senlin Zhu, S. Heddam","doi":"10.2166/WQRJ.2019.053","DOIUrl":"https://doi.org/10.2166/WQRJ.2019.053","url":null,"abstract":"\u0000 In the present study, two non-linear mathematical modelling approaches, namely, extreme learning machine (ELM) and multilayer perceptron neural network (MLPNN) were developed to predict daily dissolved oxygen (DO) concentrations. Water quality data from four urban rivers in the backwater zone of the Three Gorges Reservoir, China were used. The water quality data selected consisted of daily observed water temperature, pH, permanganate index, ammonia nitrogen, electrical conductivity, chemical oxygen demand, total nitrogen, total phosphorus and DO. The accuracy of the ELM model was compared with the standard MLPNN using several error statistics such as root mean squared error, mean absolute error, the coefficient of correlation and the Willmott index of agreement. Results showed that the ELM and MLPNN models perform well for the Wubu River, acceptably for the Yipin River and moderately for the Huaxi River, while poor model performance was obtained at the Tributary of Huaxi River. Model performance is negatively correlated with pollution level in each river. The MLPNN model slightly outperforms the ELM model in DO prediction. Overall, it can be concluded that MLPNN and ELM models can be applied for DO prediction in low-impacted rivers, while they may not be appropriate for DO modelling for highly polluted rivers.\u0000 This article has been made Open Access thanks to the kind support of CAWQ/ACQE (https://www.cawq.ca).","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/WQRJ.2019.053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46281358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 56

Ozonation of natural organic matter and aquatic humic substances: the effects of ozone on the structural characteristics and subsequent trihalomethane formation potential 天然有机物和水生腐殖质的臭氧化:臭氧对结构特征和随后的三卤甲烷形成潜力的影响

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2020-01-28 DOI: 10.2166/wqrj.2020.011

Mehrnaz Sadrnourmohammadi, K. Brezinski, B. Gorczyca

{"title":"Ozonation of natural organic matter and aquatic humic substances: the effects of ozone on the structural characteristics and subsequent trihalomethane formation potential","authors":"Mehrnaz Sadrnourmohammadi, K. Brezinski, B. Gorczyca","doi":"10.2166/wqrj.2020.011","DOIUrl":"https://doi.org/10.2166/wqrj.2020.011","url":null,"abstract":"\u0000 The effect of ozonation on the structural and chemical characteristics of natural organic matter (NOM) and its isolated humic fractions, humic acid (HA) and fulvic acid, were studied using Fourier transform infrared coupled to attenuated total reflectance (FTIR-ATR), ultraviolet/visible (UV/Vis) spectroscopy, and synchronous scanning fluorescence (SSF) spectroscopy. The results were linked to the effect of ozonation on trihalomethane formation potential (THMfp) reduction for water standards with high THM precursors. Results showed that ozonation at a dose of 1 mg ozone/mg dissolved organic carbon (DOC) was capable of reducing DOC, UV absorbance at 254 nm (UV254), and THMfp by up to 42%, 95%, and 89% for the HA water standard, respectively. The study of UV/Vis, FTIR-ATR, and SSF revealed trends showing that ozone can alter the composition of DOC in the water standards, causing a significant reduction in aromaticity. The reduction of UV254 for each ozonated sample also affirms that ozone mainly targets aromatic moieties contained in NOM. FTIR-ATR results showed that the reduction of unsaturated functional groups, including aromatic rings and C = C bonds in the water standards tested, were the main components impacted by ozone application. SSF results also revealed that ozonation decreases the fluorescence intensity of the maximum peak – as well as the whole spectra.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2020-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/wqrj.2020.011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45589542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7