Water Supply最新文献_第2页

Hydromorphological shifts in the Yamuna River: Post-barrage impacts and water management implications 亚穆纳河的水文形态变化：拦河坝后的影响和水资源管理的意义

Water Supply Pub Date : 2024-06-07 DOI: 10.2166/ws.2024.136

M. Mohanty, V. Tare

{"title":"Hydromorphological shifts in the Yamuna River: Post-barrage impacts and water management implications","authors":"M. Mohanty, V. Tare","doi":"10.2166/ws.2024.136","DOIUrl":"https://doi.org/10.2166/ws.2024.136","url":null,"abstract":"\u0000 The study analyzes the hydromorphological impacts of barrage construction and operation on the Yamuna River over 25 years, employing the River Flow Health Index (RFHI). The RFHI methodology includes segregating flow data into different periods, identifying key parameters, assessing flow alterations, and developing an index from 0 to 1. Results indicate moderate alterations in the flow regime, with RFHI of 0.379 and 0.328 for different periods. Geomorphological analysis revealed variations in river sinuosity, peaking at 1.232 in 1999 before reducing to 1.206 by 2018, and braid-channel ratio decreasing from 1.864 in 1999 to 1.508 in 2018. Channel width narrowed in 1999 to 0.082 km and slightly expanded to 0.093 km by 2018. The channel area reduced from 6.418 km² in 1993 to 5.632 km² in 2018, with the bar area significantly decreasing and bar density dropping from 3.28 to 0.83, indicating changes in the channel belt. Construction phases showed increased fluvial bars and channel multiplicity and decreased channel area and width. Post-Hathnikund barrage, withdrawals during lean seasons left the channel dry, as seen in 2003, 2008, and 2013. These findings emphasize integrated river basin management to harmonize development with ecological impacts.","PeriodicalId":23725,"journal":{"name":"Water Supply","volume":" 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141374560","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: 0

Is conventional drinking water treatment more economically viable than ultrafiltration in Brazil? A technical, economic, comparative study with risk assessment 在巴西，传统饮用水处理方法比超滤方法更经济可行吗？一项技术、经济和风险评估比较研究

Water Supply Pub Date : 2024-06-06 DOI: 10.2166/ws.2024.132

E. Skoronski, Altherre Branco Rosa, Flávio José Simioni

{"title":"Is conventional drinking water treatment more economically viable than ultrafiltration in Brazil? A technical, economic, comparative study with risk assessment","authors":"E. Skoronski, Altherre Branco Rosa, Flávio José Simioni","doi":"10.2166/ws.2024.132","DOIUrl":"https://doi.org/10.2166/ws.2024.132","url":null,"abstract":"\u0000 Water treatment systems using ultrafiltration (UF) membranes constitute a viable option for producing drinking water for human consumption. The present study aimed to perform a comparative analysis of conventional water treatment and UF. The treatment methods were compared considering the quality of the treated water and the cost of implementing a water treatment plant (WTP) and operating the systems, with a risk assessment of the influence of the deterioration of water quality on costs. Data were obtained from the operations of a conventional WTP in the municipality of Lages, Brazil, and a pilot plant employing UF. In the conventional and UF systems, treated water had turbidity of 1.90 and 0.19 NTU, an apparent color of 2.12 and 0.28 mg L−1 Pt/Co, and pH of 6.94 and 7.04, respectively. Average total cost (ATC) was $0.0496/m3 in the conventional system and $0.0596/m3 in the UF system. Chemical inputs and sludge treatment were the main variables that affected the ATC in conventional treatment, whereas energy and plant costs were the main components affecting the ATC in the UF system. A 30% reduction in water quality increased the ATC by 2.6% for the conventional and 1.5% for the UF system.","PeriodicalId":23725,"journal":{"name":"Water Supply","volume":"30 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141379550","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: 0

Assessment of chemical and bacteriological status of treated wastewater of the Baraki WWTP (Algeria) for agricultural purposes 评估经巴拉基污水处理厂（阿尔及利亚）处理后的农业废水的化学和细菌学状况

Water Supply Pub Date : 2024-06-06 DOI: 10.2166/ws.2024.134

M. Chirane, H. Belmeskine, Sofiane Boudjellaba, Smain Megatelli

{"title":"Assessment of chemical and bacteriological status of treated wastewater of the Baraki WWTP (Algeria) for agricultural purposes","authors":"M. Chirane, H. Belmeskine, Sofiane Boudjellaba, Smain Megatelli","doi":"10.2166/ws.2024.134","DOIUrl":"https://doi.org/10.2166/ws.2024.134","url":null,"abstract":"\u0000 \u0000 Due to its geographical location in the arid and semi-arid zone, Algeria is suffering from water stress amplified by the effects of climate change. For these reasons, this study was conducted to evaluate the suitability for agricultural reuse of treated wastewater of Baraki WWTP. The quality of agricultural reuse is related to the physico-chemical parameters and indicators of water quality. The bacteriological characteristics including total and fecal coliforms, fecal Enterococci, Salmonella spp. and Staphylococci spp. were also considered. The results revealed that sodium adsorption ratio (SAR) and soluble sodium percentage (SSP) values were excellent for irrigation. Wilcox diagram showed that most of the samples fall in the field of C3-S1 indicating high salinity and low sodium water. The physico-chemical results indicated that most of the parameters are in conformity with standards except ammonia NH4+ and total nitrogen that are higher than the permissible limit of USEPA and FAO. The average concentrations of heavy metals are low compared to the FAO recommendations. However, the bacteriological analyses confirmed the existence of germs indicating a fecal contamination exceeding the WHO regulations but an absence of pathogenic germs. Hence, the disinfection of this water and adequate treatment is needed before its use for agricultural purposes.","PeriodicalId":23725,"journal":{"name":"Water Supply","volume":"103 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141376291","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: 0

Withdrawn: Optimization of water supply reservoir scheduling with insufficient regulating capacity 撤回：调节能力不足情况下的供水水库调度优化

Water Supply Pub Date : 2024-06-05 DOI: 10.2166/ws.2024.119

引用次数: 0

Utilizing big data to determine the temperature dependency of Legionella in hot water systems 利用大数据确定热水系统中军团菌的温度依赖性

Water Supply Pub Date : 2024-06-05 DOI: 10.2166/ws.2024.133

T. Kistemann, N. Zacharias, Felix Droop, Lia Freier, C. Schreiber, Nico T. Mutters, A. Rechenburg

{"title":"Utilizing big data to determine the temperature dependency of Legionella in hot water systems","authors":"T. Kistemann, N. Zacharias, Felix Droop, Lia Freier, C. Schreiber, Nico T. Mutters, A. Rechenburg","doi":"10.2166/ws.2024.133","DOIUrl":"https://doi.org/10.2166/ws.2024.133","url":null,"abstract":"\u0000 Domestic hot water installations provide an ideal habitat for Legionella spp. and pose a potential risk of human infection. Heating the water is considered the major preventive measure against Legionella contamination. Our study aimed to understand better the relationships between hot water temperatures and Legionella spp. occurrence within such systems. We utilized routine monitoring data from public and apartment buildings, comprising 292,937 data sets. We employed the analysis of variance, receiver operating characteristic analysis, and relative probability of occurrence to quantitatively assess statistical relationships. In the case of supply flow (SF) and return flow (RF), i.e. near the water heater, water temperature strongly regulates Legionella spp. growth. Below are calculated tipping points (SF: 56 °C, RF: 53 °C), and the relative probability of Legionella spp. occurrence is 18.7 and 7.5 times higher, respectively. For peripheral samples, the relationship between temperature and Legionella spp. occurrence is less pronounced. Additionally, statistical relationships between central and peripheral temperatures, as well as between central temperatures and peripheral Legionella spp. concentrations within one system, were weak or zero, respectively. Thus, the central temperature regime of hot water systems alone is insufficient to control the occurrence of Legionella spp. in the periphery.","PeriodicalId":23725,"journal":{"name":"Water Supply","volume":"85 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141385310","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: 0

Estimation of willingness to pay for improved water supply service: case of Algerian households 改善供水服务的支付意愿估算：阿尔及利亚家庭案例

Water Supply Pub Date : 2024-06-05 DOI: 10.2166/ws.2024.130

S. Boukhari, Mourad Kertous, Abdelhak Nassiri, Samir B. Maliki

引用次数: 0

New approach to domestic grey water footprinting: the country-scale accounting using statistical methods in Türkiye 家庭灰水足迹的新方法：在土耳其使用统计方法进行国家级核算

Water Supply Pub Date : 2024-03-29 DOI: 10.2166/ws.2024.064

H. Boyacıoğlu, H. Boyacıoğlu

{"title":"New approach to domestic grey water footprinting: the country-scale accounting using statistical methods in Türkiye","authors":"H. Boyacıoğlu, H. Boyacıoğlu","doi":"10.2166/ws.2024.064","DOIUrl":"https://doi.org/10.2166/ws.2024.064","url":null,"abstract":"\u0000 \u0000 This study aimed to develop an approach for country-scale domestic grey water footprint (GWFdomestic) accounting and examine spatio-temporal differences using statistical methods. In this scope, the GWFdomestic was calculated as the amount of water required to reduce the total nitrogen concentrations of domestic wastewater released into receiving media from 81 cities in Türkiye. GWFdomestic values were estimated based on the data on wastewater amount and applied wastewater treatment process. GWF domestic was calculated by dividing the pollutant load of discharged water by the critical concentration in the surface water. The empirical results showed that (a) the produced wastewater amount increased up to 125 m3/year in some cities. (b) GWFdomestic values showed a difference between 330 and 1,900 depending on the level of treatment, and the average value was about 750 m3/ca.year. (c) A total of 81 cities were grouped under four categories, and applied water treatment technology was the main characteristic of this classification. (f) GWFdomestic has not statistically significantly changed over time in a large part of the country. It can be concluded that country-scale GWFdomestic accounting can assist water managers in developing prevention measures by analyzing spatio-temporal differences in the water footprint of domestic discharges.","PeriodicalId":23725,"journal":{"name":"Water Supply","volume":"53 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365253","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: 0

Water quality prediction using ARIMA-SSA-LSTM combination model 利用 ARIMA-SSA-LSTM 组合模型进行水质预测

Water Supply Pub Date : 2024-03-28 DOI: 10.2166/ws.2024.060

Tingyu Wang, Wei Chen, Bo Tang

引用次数: 0

Improving the daily pan evaporation estimation of long short-term memory and support vector regression models by using the Wild Horse Optimizer algorithm 利用野马优化算法改进长短期记忆和支持向量回归模型的日泛蒸发量估算

Water Supply Pub Date : 2024-03-28 DOI: 10.2166/ws.2024.063

Mohammad Shabani, Mohammad Ali Asadi, Hossein Fathian

{"title":"Improving the daily pan evaporation estimation of long short-term memory and support vector regression models by using the Wild Horse Optimizer algorithm","authors":"Mohammad Shabani, Mohammad Ali Asadi, Hossein Fathian","doi":"10.2166/ws.2024.063","DOIUrl":"https://doi.org/10.2166/ws.2024.063","url":null,"abstract":"\u0000 \u0000 Evaporation is a basic element in the hydrological cycle that plays a vital role in a region's water balance. In this paper, the Wild Horse Optimizer (WHO) algorithm was used to optimize long short-term memory (LSTM) and support vector regression (SVR) to estimate daily pan evaporation (Ep). Primary meteorological variables including minimum temperature (Tmin), maximum temperature (Tmax), sunshine hours (SSH), relative humidity (RH), and wind speed (WS) were collected from two synoptic meteorological stations with different climates which are situated in Fars province, Iran. One of the stations is located in Larestan city with a hot desert climate and the other is in Abadeh city with a cold dry climate. The partial mutual information (PMI) algorithm was utilized to identify the efficient input variables (EIVs) on Ep. The results of the PMI algorithm proved that the Tmax, Tmin, and RH for Larestan station and also the Tmax, Tmin, and SSH for Abadeh station are the EIVs on Ep. The results showed the LSTM–WHO hybrid model for both stations can ameliorate the daily Ep estimation and it can also reduce the estimation error. Therefore, the LSTM–WHO hybrid model was proposed as a powerful model compared to standalone models in estimating daily Ep.","PeriodicalId":23725,"journal":{"name":"Water Supply","volume":"105 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140370712","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: 0

Spatial assessment of groundwater quality for drinking In Souk El Arbaa, Morocco 摩洛哥 Souk El Arbaa 饮用地下水质量空间评估

Water Supply Pub Date : 2024-03-26 DOI: 10.2166/ws.2024.059

Elhassan Ghachoui, Hamid Taouil, R. Naser, Ibn Ahmed Said

{"title":"Spatial assessment of groundwater quality for drinking In Souk El Arbaa, Morocco","authors":"Elhassan Ghachoui, Hamid Taouil, R. Naser, Ibn Ahmed Said","doi":"10.2166/ws.2024.059","DOIUrl":"https://doi.org/10.2166/ws.2024.059","url":null,"abstract":"\u0000 \u0000 Morocco is facing challenges with its water resources due to population growth, industrial expansion, agriculture, urban development, tourism, climate change, overuse of underground water sources, and pollution from inadequate sanitation and chemical fertilizers. The Gharb aquifer is significant for supplying drinking water and irrigation in the country. Souk El Arbaa is a Moroccan city located in the northwestern part of the Kingdom of Morocco in the Kenitra Province. Its economic activities depend mainly on agriculture and livestock raising. This study aims to assess the groundwater status of a basin in a semi-arid climate in the Souk El Arbaa for drinking purposes by collecting 14 samples in 2022 from different locations and analyzing their physicochemical characteristics. The quality assessment was made by estimating electrical conductivity, pH, total dissolved solids, total hardness, calcium, magnesium, sodium, potassium, bicarbonates, chloride, sulfate, nitrate, and ammonium. The results showed that most of the groundwater in the study area is very hard, and all groundwater in the study area, according to the Moroccan Standards for drinking purposes, exceeds the permissible limits for nitrate and ammonium.","PeriodicalId":23725,"journal":{"name":"Water Supply","volume":"105 27","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140379625","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: 0