Water Quality Research Journal of Canada最新文献_第4页

Semi-continuous mesophilic anaerobic co-digestion of thermally pretreated scum 热预处理浮渣的半连续中温厌氧共消化

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-05-26 DOI: 10.2166/WQRJC.2016.024

B. Young, K. Kennedy, R. Delatolla, R. Sherif

引用次数: 1

Adsorption of Cu(II) on natural and treated clays 天然和处理过的粘土对Cu(II)的吸附

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-02-15 DOI: 10.2166/WQRJC.2015.051

M. Djebbar, F. Djafri

引用次数: 2

Peter Vanrolleghem is awarded 2015 Water Environment Federation President's Award Peter Vanrolleghem被授予2015年水环境联合会主席奖

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-02-15 DOI: 10.2166/WQRJC.2015.101

R. Droste

引用次数: 0

Effect of operational parameters and kinetic study on the photocatalytic degradation of m-cresol purple using irradiated ZnO in aqueous medium 操作参数及动力学研究对ZnO光催化降解间甲酚紫的影响

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-02-15 DOI: 10.2166/WQRJC.2015.028

S. Khezrianjoo, H. D. Revanasiddappa

{"title":"Effect of operational parameters and kinetic study on the photocatalytic degradation of m-cresol purple using irradiated ZnO in aqueous medium","authors":"S. Khezrianjoo, H. D. Revanasiddappa","doi":"10.2166/WQRJC.2015.028","DOIUrl":"https://doi.org/10.2166/WQRJC.2015.028","url":null,"abstract":"A detailed investigation of photocatalytic degradation of m -cresol purple ( m CP) dye has been carried out in aqueous heterogeneous medium containing zinc oxide (ZnO) as the photocatalyst in a batch reactor. The effects of some parameters such as amount of photocatalyst, dye concentration, initial pH of solution, ethanol concentration and temperature were examined. The most efficient pH in removal of the dye with photocatalytic degradation and dark surface adsorption processes was observed to be 8. The adsorption constant calculated from the linear transform of the Langmuir isotherm model, was similar to that obtained in photocatalytic degradation at pH = 8; hence, the Langmuir–Hinshelwood model was found to be accurate for photocatalytic degradation at this pH. Dark surface adsorption and degradation efficiency were increased by enhancement in the temperature at the optimum pH of 8 and the apparent activation energy (E a ) for the photocatalytic degradation of m CP was determined as 14.09 kJ/mol at this pH. The electrical energy consumption per order of magnitude ( E EO ) for photocatalytic degradation of m CP was also determined.","PeriodicalId":54407,"journal":{"name":"Water Quality Research Journal of Canada","volume":"51 1","pages":"69-78"},"PeriodicalIF":2.0,"publicationDate":"2016-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/WQRJC.2015.028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67982172","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}

引用次数: 10

Comparative analysis on the effectiveness of various filtration methods on the potability of water 不同过滤方法对水的饮用效果的对比分析

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-02-15 DOI: 10.2166/WQRJC.2015.014

S. Achio, F. Kutsanedzie, E. Ameko

{"title":"Comparative analysis on the effectiveness of various filtration methods on the potability of water","authors":"S. Achio, F. Kutsanedzie, E. Ameko","doi":"10.2166/WQRJC.2015.014","DOIUrl":"https://doi.org/10.2166/WQRJC.2015.014","url":null,"abstract":"This paper comparatively assessed the effectiveness of potable water filtration methods, commonly used in the hinterlands in some Ghanaian communities. Physico-chemical and microbiological analysis were carried out on pond, dam and river water samples, using spectrophotometric, pour plate count and the most probable number (MPN) methods. For the unfiltered water samples the total dissolved solids (TDS) and colour were the only parameters with values within recommended standards. The other parameters, total suspended solids (TSS), turbidity, total coliforms and bacterial counts levels were above their standard recommended values. All the filtration methods showed reduction in the levels or better accepted values of the physico-chemical and microbiological parameters. The ceramic filters and the household sand filters showed outstanding results, with all analysed parameters being within the acceptable standards levels. These two methods could be promoted for use to treat untreated drinking water. It is envisaged that a combination of a number of these methods would produce even better results, especially when agents such as alum and activated carbon are included. Follow-up research in this regard is therefore recommended.","PeriodicalId":54407,"journal":{"name":"Water Quality Research Journal of Canada","volume":"51 1","pages":"42-46"},"PeriodicalIF":2.0,"publicationDate":"2016-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/WQRJC.2015.014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67981975","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}

引用次数: 1

Effect of soil texture on water infiltration in semiarid reclaimed land 半干旱复垦土地土壤质地对水分入渗的影响

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-02-15 DOI: 10.2166/WQRJC.2015.025

Wenmei Ma, Xingchang Zhang, Qing Zhen, Yanjiang Zhang

{"title":"Effect of soil texture on water infiltration in semiarid reclaimed land","authors":"Wenmei Ma, Xingchang Zhang, Qing Zhen, Yanjiang Zhang","doi":"10.2166/WQRJC.2015.025","DOIUrl":"https://doi.org/10.2166/WQRJC.2015.025","url":null,"abstract":"The infiltration of water and its influencing factors in disturbed or reclaimed land are not well understood. A better understanding would provide essential information for assessing the hydrological processes in disturbed ecosystems. We measured the infiltration of water in soils from loamy and sandy reclaimed land. The relationships between infiltration and soil properties were analyzed based on three models: the Kostiakov, Philip, and Green–Ampt equations. Our objectives were to understand water infiltration in reclaimed land with a variety of soil textures and to establish the dependence of water infiltration on soil properties. Both the rate of infiltration and the cumulative infiltration were higher in sandy than in loamy soils. The rate of infiltration and the cumulative infiltration decreased with soil depth in undisturbed land. The sorptivity rate ( S ) from the Philip equation, empirical coefficient ( K ) from the Kostiakov equation, and the satiated hydraulic conductivity ( Ksl ) from the Green–Ampt equation were 22%, 16%, and 7.1% higher, respectively, in sandy than in loamy soils. The Ksl increased significantly with Ks (saturated hydraulic conductivity) in both sandy and loamy soils. These indicated that the Green–Ampt equation can be used to describe Ks and the characteristics of infiltration for soils on disturbed land.","PeriodicalId":54407,"journal":{"name":"Water Quality Research Journal of Canada","volume":"51 1","pages":"33-41"},"PeriodicalIF":2.0,"publicationDate":"2016-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/WQRJC.2015.025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67982158","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}

引用次数: 22

Incentives and disincentives identified by producers and drainage contractors/experts on the adoption of controlled tile drainage in eastern Ontario, Canada 生产商和排水承包商/专家在加拿大安大略省东部采用控制瓦排水系统时确定的激励和抑制因素

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-02-15 DOI: 10.2166/WQRJC.2015.047

Colin Dring, J. Devlin, G. Boag, M. Sunohara, J. FitzGibbon, E. Topp, D. Lapen

{"title":"Incentives and disincentives identified by producers and drainage contractors/experts on the adoption of controlled tile drainage in eastern Ontario, Canada","authors":"Colin Dring, J. Devlin, G. Boag, M. Sunohara, J. FitzGibbon, E. Topp, D. Lapen","doi":"10.2166/WQRJC.2015.047","DOIUrl":"https://doi.org/10.2166/WQRJC.2015.047","url":null,"abstract":"This study investigates incentives and disincentives regarding adoption of controlled tile drainage (CTD) in a region of eastern Ontario, Canada, where CTD could be used prolifically from a biophysical standpoint, but is not. Irrespective of documented environmental and agronomic benefits of CTD, adoption remains low. Surveys and semi-structured interviews with producers and drainage contractors/experts were used to evaluate awareness of CTD and identify producer adoption impediments. Surveys indicated nearly 70% of producer respondents had heard about CTD. Top ranked incentives identified by producers (who adopted) and drainage contractors/experts combined were: soil water retention benefits, increased crop yields, and gratification improving the environment. Top ranked disincentives combined by target groups were: increased farm labor, perceived lack of extension services, and costs. Many producer adopters emphasized motivators grounded in personal or community bearing, such as peer interaction and doing the right thing for the environment. Drainage contractors emphasized adoption impediments tied to a perceived lack of extension support for CTD. Drainage contractors themselves desired more extension support and firm data/research foundations with respect to advocating CTD to clients. With respect to motivation for producers to adopt CTD, this latter point may be critical given that producers highly valued drainage contractors as an information source on drainage practices.","PeriodicalId":54407,"journal":{"name":"Water Quality Research Journal of Canada","volume":"51 1","pages":"1-16"},"PeriodicalIF":2.0,"publicationDate":"2016-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/WQRJC.2015.047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67982484","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}

引用次数: 6

Groundwater nitrate and chloride trends in an agriculture-intensive area in southern Alberta, Canada 加拿大阿尔伯塔省南部农业集约区地下水硝酸盐和氯化物趋势

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-02-15 DOI: 10.2166/WQRJC.2015.132

J. Kohn, D. X. Soto, M. Iwanyshyn, B. Olson, A. Kalischuk, K. Lorenz, M. Hendry

{"title":"Groundwater nitrate and chloride trends in an agriculture-intensive area in southern Alberta, Canada","authors":"J. Kohn, D. X. Soto, M. Iwanyshyn, B. Olson, A. Kalischuk, K. Lorenz, M. Hendry","doi":"10.2166/WQRJC.2015.132","DOIUrl":"https://doi.org/10.2166/WQRJC.2015.132","url":null,"abstract":"The potential effect of manure management from livestock production on groundwater quality is an issue of concern. Groundwater sampling from a regional transect in southern Alberta, Canada, was conducted to determine changes in groundwater quality with time. The study area has extensive irrigation and a high density of confined feeding operations. Nitrate-N (NO3−-N) and chloride (Cl−) concentration data from 23 groundwater-study wells were evaluated from 1994 to 2014. Twelve of these wells were water-table wells and 11 were piezometers. Of the 23 wells, 14 had significant temporal trends (increasing or decreasing) for NO3−-N and/or Cl− concentrations. On a regional basis, NO3−-N increased slightly with time while Cl− changed very little, suggesting that the effects of agricultural activities on regional groundwater quality have generally remained constant. However, concentration changes occurred on a smaller scale. Shallow groundwater in coarse-textured soils is at a relatively higher risk to contamination than groundwater with fine-textured soils, especially in locations where intensive agricultural activities occur.","PeriodicalId":54407,"journal":{"name":"Water Quality Research Journal of Canada","volume":"50 1","pages":"47-59"},"PeriodicalIF":2.0,"publicationDate":"2016-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/WQRJC.2015.132","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67982044","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}

引用次数: 24

Effect of ionic strength on the ion exchange equilibrium between AMX membrane and electrolyte solutions 离子强度对AMX膜与电解质溶液间离子交换平衡的影响

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-02-15 DOI: 10.2166/WQRJC.2015.006

Islem Louati, F. Guesmi, A. Chaabouni, Chiraz Hannachi, B. Hamrouni

引用次数: 4

Solid thickening and methane production of livestock wastewater using dissolved carbon dioxide flotation 利用溶解二氧化碳浮选法对牲畜废水进行固体浓缩和产甲烷

IF 2

Water Quality Research Journal of Canada Pub Date : 2016-02-15 DOI: 10.2166/WQRJC.2015.033

D. Kwak, S. Chae

{"title":"Solid thickening and methane production of livestock wastewater using dissolved carbon dioxide flotation","authors":"D. Kwak, S. Chae","doi":"10.2166/WQRJC.2015.033","DOIUrl":"https://doi.org/10.2166/WQRJC.2015.033","url":null,"abstract":"Dilute manure is classified as wastewater due to the large quantity of water used in livestock production in Korea. Livestock wastewater treatment is required in order to reduce high moisture content and treat fluids discharged from the digestion process. In livestock wastewater treatment plants, large quantities of CO2 gas are produced at combined heat and power facilities as well as in the anaerobic digestion (AD) process. This gas produced during livestock wastewater treatment can be used as a separator of solids from liquid in wastewater. In this study, a flotation system using recycled CO2 gas was used for sludge thickening. An anaerobic toxicity assay (ATA) and a biochemical methane potential assay were used to assess the toxicity impact of recycling CO2 on the methane production potential. ATA experiments confirmed that CO2 toxicity did not impair the AD process. The tests indicated that the cumulative methane yield from influent livestock manure enriched with CO2 was approximately 190 mL-CH4/g-VSadded. The data demonstrated the potential of using dissolved CO2 flotation in the AD of diluted livestock wastewater.","PeriodicalId":54407,"journal":{"name":"Water Quality Research Journal of Canada","volume":"205 1","pages":"17-25"},"PeriodicalIF":2.0,"publicationDate":"2016-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2166/WQRJC.2015.033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67982351","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}

引用次数: 2