首页 > 最新文献

Water Practice and Technology最新文献

英文 中文
Assessing hydrological and water quality parameters in the Hathmati Watershed using the SWAT (Soil and Water Assessment Tool) 利用SWAT(土壤和水评估工具)评估Hathmati流域水文和水质参数
Q3 Environmental Science Pub Date : 2023-10-20 DOI: 10.2166/wpt.2023.151
Payal Vinitkumar Shah, Mohd Zuned M. Shaikh, Pradeep P. Lodha
Abstract The study is conducted on the Hathmati River, which is the principal tributary of the Sabarmati River, one of Gujarat's biggest rivers. Indicators of water quality such organic N, organic P, NO3, NH4, NO2, total N, and total P were compared between the observed values in the watershed and the streamflow models. For monthly streamflow and monthly nitrate during the calibration period of 1999–2012, and for 0.87 and 0.56 for the validation period of 2013–2020, respectively, the Nash–Sutcliffe efficiency was 0.89 and 0.79. The measured water quality data at three locations in the watershed were largely compatible with their corresponding modeled values, while the agreement varied by nutrients. Using the parameters used to forecast the hydrological and water quality responses in the watershed region, the Soil and Water Assessment Tool model faithfully duplicated the hydrological and water quality conditions in this agricultural watershed. The results of the modeling indicated that nutrients are one of the key determinants with regard to the quality of the water, in accordance with the current land use and management practices in the watershed. Management practices should be implemented in order to reduce the nutrient load and meet the watershed's requisite water quality standards.
该研究是在哈马提河上进行的,这是古吉拉特邦最大的河流之一萨巴尔马提河的主要支流。将流域的有机氮、有机磷、NO3、NH4、NO2、全氮、全磷等水质指标与河流模型的观测值进行比较。1999-2012年定标期的月流量和月硝酸盐、2013-2020年验证期的0.87和0.56,Nash-Sutcliffe效率分别为0.89和0.79。在流域内三个地点测量的水质数据与相应的模型值基本一致,但一致性因营养物质而异。土壤和水评价工具模型利用预测流域水文和水质响应的参数,忠实地复制了该农业流域的水文和水质条件。模拟的结果表明,根据流域目前的土地利用和管理做法,营养物质是水质的关键决定因素之一。应实施管理措施,以减少营养物负荷并达到流域的必要水质标准。
{"title":"Assessing hydrological and water quality parameters in the Hathmati Watershed using the SWAT (Soil and Water Assessment Tool)","authors":"Payal Vinitkumar Shah, Mohd Zuned M. Shaikh, Pradeep P. Lodha","doi":"10.2166/wpt.2023.151","DOIUrl":"https://doi.org/10.2166/wpt.2023.151","url":null,"abstract":"Abstract The study is conducted on the Hathmati River, which is the principal tributary of the Sabarmati River, one of Gujarat's biggest rivers. Indicators of water quality such organic N, organic P, NO3, NH4, NO2, total N, and total P were compared between the observed values in the watershed and the streamflow models. For monthly streamflow and monthly nitrate during the calibration period of 1999–2012, and for 0.87 and 0.56 for the validation period of 2013–2020, respectively, the Nash–Sutcliffe efficiency was 0.89 and 0.79. The measured water quality data at three locations in the watershed were largely compatible with their corresponding modeled values, while the agreement varied by nutrients. Using the parameters used to forecast the hydrological and water quality responses in the watershed region, the Soil and Water Assessment Tool model faithfully duplicated the hydrological and water quality conditions in this agricultural watershed. The results of the modeling indicated that nutrients are one of the key determinants with regard to the quality of the water, in accordance with the current land use and management practices in the watershed. Management practices should be implemented in order to reduce the nutrient load and meet the watershed's requisite water quality standards.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135617565","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
Growers' irrigation practices, knowledge, trust, and attitudes toward wastewater reuse in Lebanon, Jordan, and Tunisia through a food safety lens 从食品安全的角度看黎巴嫩、约旦和突尼斯种植者对废水再利用的灌溉实践、知识、信任和态度
Q3 Environmental Science Pub Date : 2023-10-19 DOI: 10.2166/wpt.2023.169
Dima Faour-Klingbeil, Asma’ O.Taybeh, Olfa Mahjoub, Othman Almashaqbeh, Christelle Bou Mitri, Joy J. Samaha, Latifa Dhaouadi, Ewen C. D. Todd
Abstract Maximizing water reuse requires addressing legal and regulatory frameworks, but growers’ understanding of water as a vehicle for pollutants and safe practices is vital in this process. A cross-sectional survey of 85 growers in Lebanon, Jordan, and Tunisia explored these factors. Results showed that 70.6% of growers had limited knowledge about the transmission of pathogens, pesticides, and pharmaceuticals to food crops via treated wastewater (TWW). Additionally, 55% of farmers used TWW for irrigation, while 65.9% believed that it poses health risks to consumers when applied to crops eaten raw. A positive attitude toward TWW was a determining factor for maximizing water reuse applications. However, the limited access and unavailability of treatment plants were the primary reasons for not using TWW (32.9%). More concerning, less than half controlled the quality of irrigation water using microbiological tests (32.9%), chemical tests (37.6%), and turbidity tests (29.4%). Meanwhile, only 40% trusted local authorities’ control of TWW quality and 69.4% had no access to regulatory information. The present study showed the importance of prioritizing growers’ awareness of potential risks and establishing the practice of monitoring of water quality indicators and contaminants. These should be at the forefront of water reuse expansion strategies to mitigate associated risks.
最大化水的再利用需要解决法律和监管框架,但种植者对水作为污染物的载体和安全实践的理解在这一过程中至关重要。一项针对黎巴嫩、约旦和突尼斯85名种植者的横断面调查探讨了这些因素。结果表明,70.6%的农户对经处理的废水(TWW)向粮食作物传播病原体、农药和药品的知识有限。此外,55%的农民使用TWW进行灌溉,而65.9%的农民认为将TWW用于生吃作物会对消费者造成健康风险。对TWW的积极态度是最大限度地利用水的决定性因素。然而,不使用TWW的主要原因是污水处理厂的可及性有限(32.9%)。更令人担忧的是,使用微生物测试(32.9%)、化学测试(37.6%)和浊度测试(29.4%)来控制灌溉用水质量的不到一半。与此同时,只有40%的受访者相信当地政府对TWW质量的控制,69.4%的受访者无法获得监管信息。目前的研究表明,重要的是要优先考虑种植者对潜在风险的认识,并建立监测水质指标和污染物的做法。这些应放在扩大水再利用战略的最前沿,以减轻相关风险。
{"title":"Growers' irrigation practices, knowledge, trust, and attitudes toward wastewater reuse in Lebanon, Jordan, and Tunisia through a food safety lens","authors":"Dima Faour-Klingbeil, Asma’ O.Taybeh, Olfa Mahjoub, Othman Almashaqbeh, Christelle Bou Mitri, Joy J. Samaha, Latifa Dhaouadi, Ewen C. D. Todd","doi":"10.2166/wpt.2023.169","DOIUrl":"https://doi.org/10.2166/wpt.2023.169","url":null,"abstract":"Abstract Maximizing water reuse requires addressing legal and regulatory frameworks, but growers’ understanding of water as a vehicle for pollutants and safe practices is vital in this process. A cross-sectional survey of 85 growers in Lebanon, Jordan, and Tunisia explored these factors. Results showed that 70.6% of growers had limited knowledge about the transmission of pathogens, pesticides, and pharmaceuticals to food crops via treated wastewater (TWW). Additionally, 55% of farmers used TWW for irrigation, while 65.9% believed that it poses health risks to consumers when applied to crops eaten raw. A positive attitude toward TWW was a determining factor for maximizing water reuse applications. However, the limited access and unavailability of treatment plants were the primary reasons for not using TWW (32.9%). More concerning, less than half controlled the quality of irrigation water using microbiological tests (32.9%), chemical tests (37.6%), and turbidity tests (29.4%). Meanwhile, only 40% trusted local authorities’ control of TWW quality and 69.4% had no access to regulatory information. The present study showed the importance of prioritizing growers’ awareness of potential risks and establishing the practice of monitoring of water quality indicators and contaminants. These should be at the forefront of water reuse expansion strategies to mitigate associated risks.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730476","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
Statistical analysis for remediation of As(III) ions from water using pristine and derivatized Phyllanthus emblica seed coat 原始和衍生的余甘子种皮修复水中As(III)离子的统计分析
Q3 Environmental Science Pub Date : 2023-10-17 DOI: 10.2166/wpt.2023.165
Rajeev Kumar, Jyoti Chawla, Madhvi Nayyar
Abstract The aim of this study is to determine the optimal conditions for remediation of As(III) ions from water using adsorbents prepared from the seed coat of pristine Phyllanthus emblica (PPE) and derivatized Phyllanthus emblica (DPE), and were analyzed with the help of Box–Behnken design (BBD) and central composite design (CCD) optimization techniques. pH, initial ion concentration, dosage, and contact time were taken as process parameters while designing the experiment. The desirability factor for both the adsorbents was high as follows: (1.0) for the BBD in comparison to the CCD (0.8). The regression coefficient (R2) for both adsorbents was in the range of 0.993–0.999 for the BBD and 0.965–0.969 for the CCD. The BBD is found to be more suitable for designing experiments, optimization of variables for maximum removal, and estimation of removal percentage in different conditions. The adsorption of ions at equilibrium (qe) was found to be 43.59 mg/g at optimal conditions of pH 7.13, initial concentration of arsenic of 99.02 mg/L, contact time of 105.13 min, and dosage of 0.12 g/L for PPE using the BBD. However, the adsorption of ions at equilibrium (qe) was found to be 48.79 mg/g at optimal conditions of pH 7.31, initial ion concentration of 98.82 mg/L, contact time of 126.99 min, and dosage of 0.12 g/L for DPE using the BBD technique.
摘要本研究旨在确定原始余甘子种皮(PPE)和衍生余甘子种皮(DPE)制备的吸附剂修复水中As(III)离子的最佳条件,并利用Box-Behnken设计(BBD)和中心复合设计(CCD)优化技术进行分析。实验设计时以pH、初始离子浓度、投加量、接触时间为工艺参数。两种吸附剂的理想因数如下:(1)与CCD(0.8)相比,BBD为1.0。两种吸附剂的回归系数(R2)分别在0.993 ~ 0.999和0.965 ~ 0.969之间。结果表明,该方法更适合于不同条件下的实验设计、最大去除率变量的优化和去除率的估计。在pH为7.13、砷初始浓度为99.02 mg/L、接触时间为105.13 min、PPE用量为0.12 g/L的最佳条件下,BBD对平衡离子的吸附量(qe)为43.59 mg/g。在pH为7.31、初始离子浓度为98.82 mg/L、接触时间为126.99 min、DPE投加量为0.12 g/L的最佳条件下,DPE的平衡吸附离子(qe)为48.79 mg/g。
{"title":"Statistical analysis for remediation of As(III) ions from water using pristine and derivatized <i>Phyllanthus emblica</i> seed coat","authors":"Rajeev Kumar, Jyoti Chawla, Madhvi Nayyar","doi":"10.2166/wpt.2023.165","DOIUrl":"https://doi.org/10.2166/wpt.2023.165","url":null,"abstract":"Abstract The aim of this study is to determine the optimal conditions for remediation of As(III) ions from water using adsorbents prepared from the seed coat of pristine Phyllanthus emblica (PPE) and derivatized Phyllanthus emblica (DPE), and were analyzed with the help of Box–Behnken design (BBD) and central composite design (CCD) optimization techniques. pH, initial ion concentration, dosage, and contact time were taken as process parameters while designing the experiment. The desirability factor for both the adsorbents was high as follows: (1.0) for the BBD in comparison to the CCD (0.8). The regression coefficient (R2) for both adsorbents was in the range of 0.993–0.999 for the BBD and 0.965–0.969 for the CCD. The BBD is found to be more suitable for designing experiments, optimization of variables for maximum removal, and estimation of removal percentage in different conditions. The adsorption of ions at equilibrium (qe) was found to be 43.59 mg/g at optimal conditions of pH 7.13, initial concentration of arsenic of 99.02 mg/L, contact time of 105.13 min, and dosage of 0.12 g/L for PPE using the BBD. However, the adsorption of ions at equilibrium (qe) was found to be 48.79 mg/g at optimal conditions of pH 7.31, initial ion concentration of 98.82 mg/L, contact time of 126.99 min, and dosage of 0.12 g/L for DPE using the BBD technique.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136033218","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
Identifying groundwater recharge potential zone using analytical hierarchy process (AHP) in the semi-arid Shinile watershed, Eastern Ethiopia 利用层次分析法(AHP)确定埃塞俄比亚东部半干旱Shinile流域地下水补给潜力区
Q3 Environmental Science Pub Date : 2023-10-17 DOI: 10.2166/wpt.2023.168
Asfaw Kebede Kassa, Negash Tessema, Amensis Habtamu, Bekele Girma, Zablon Adane
Abstract Surface and groundwater are priceless resources not consistently concentrated both spatially and temporally. Groundwater is the most valuable resource and dynamic and is not distributed equally. Analytical hierarchy processes (AHP) were used in Shinile Watershed, Eastern Ethiopia to identify high-potential groundwater recharge zones. The amount of groundwater in a particular location depends on topography, lithology, geological structure, depth of weathering, slope, drainage pattern, land use land cover (LULC), and rainfall patterns. Numerous themes are covered in the potentiality mapping according to their relative relevance, including geology, slope gradient, LULC, soil texture, rainfall, lineament density, drainage density, groundwater fluctuation, etc. The weights of various themes have been determined using the AHP method, and then overlay analysis in the geospatial context has been completed. According to the investigation, the groundwater recharge potential zone has five levels: very low, low, moderate, high, and very high. The validation results using existing borehole sites demonstrate that the applied approach produces extremely dense data that can support long-term planning and sustainable groundwater resource utilization in a region with scarce water resources. This study guides effectively incorporating acceptable research findings into national policy and decision-making processes to dramatically improve groundwater supplies' sustainability in the study area.
地表水和地下水是宝贵的资源,在空间和时间上都不集中。地下水是最有价值的动态资源,其分布并不均匀。采用层次分析法(AHP)对埃塞俄比亚东部Shinile流域进行了地下水高回灌潜力区识别。一个特定地点的地下水数量取决于地形、岩性、地质构造、风化深度、坡度、排水模式、土地利用、土地覆盖(LULC)和降雨模式。根据它们的相对相关性,潜力图涵盖了许多主题,包括地质、坡度、LULC、土壤质地、降雨、线条密度、排水密度、地下水波动等。利用层次分析法确定各主题的权重,完成地理空间背景下的叠加分析。根据调查,地下水补给潜力带分为极低、低、中、高、极高五个级别。利用现有钻孔点的验证结果表明,该方法可以产生非常密集的数据,可以支持水资源稀缺地区的长期规划和可持续地下水资源利用。本研究指导有效地将可接受的研究成果纳入国家政策和决策过程,以显著提高研究区域地下水供应的可持续性。
{"title":"Identifying groundwater recharge potential zone using analytical hierarchy process (AHP) in the semi-arid Shinile watershed, Eastern Ethiopia","authors":"Asfaw Kebede Kassa, Negash Tessema, Amensis Habtamu, Bekele Girma, Zablon Adane","doi":"10.2166/wpt.2023.168","DOIUrl":"https://doi.org/10.2166/wpt.2023.168","url":null,"abstract":"Abstract Surface and groundwater are priceless resources not consistently concentrated both spatially and temporally. Groundwater is the most valuable resource and dynamic and is not distributed equally. Analytical hierarchy processes (AHP) were used in Shinile Watershed, Eastern Ethiopia to identify high-potential groundwater recharge zones. The amount of groundwater in a particular location depends on topography, lithology, geological structure, depth of weathering, slope, drainage pattern, land use land cover (LULC), and rainfall patterns. Numerous themes are covered in the potentiality mapping according to their relative relevance, including geology, slope gradient, LULC, soil texture, rainfall, lineament density, drainage density, groundwater fluctuation, etc. The weights of various themes have been determined using the AHP method, and then overlay analysis in the geospatial context has been completed. According to the investigation, the groundwater recharge potential zone has five levels: very low, low, moderate, high, and very high. The validation results using existing borehole sites demonstrate that the applied approach produces extremely dense data that can support long-term planning and sustainable groundwater resource utilization in a region with scarce water resources. This study guides effectively incorporating acceptable research findings into national policy and decision-making processes to dramatically improve groundwater supplies' sustainability in the study area.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135995128","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
Study on the physico-chemical properties of water in the Pokkali wetlands of Ernakulam, Kerala, India 印度喀拉拉邦erakulam Pokkali湿地水的理化性质研究
Q3 Environmental Science Pub Date : 2023-10-17 DOI: 10.2166/wpt.2023.164
Surya Babu S., Raju Thomas K.
Abstract The Pokkali wetlands of Ernakulam District, Kerala, are incredibly nutrient-rich, biodiverse habitats that offer a wide range of benefits. There are important bird areas that lie under the Central Asian Flyway (CAF) and the Vembanad Ramsar site. An intensive study was carried out on the physico-chemical properties of water samples collected from the Pokkali wetlands of Ernakulam, Kerala, from 1 June 2016 to 31 May 2019. The water parameters, such as temperature (°C), pH, depth (cm), dissolved oxygen (DO) (mg/L), salinity (mg/L), turbidity (NTU), and electrical conductivity (μS cm−1) were analysed and recorded. The correlation between various parameters was analysed using the PAST software. The physico-chemical parameters of water have an influence on the biodiversity and ecology of the study area. Data collection about these aquatic parameters is essential to assess the status and biodiversity of the wetland ecosystem.
喀拉拉邦埃纳库拉姆地区的Pokkali湿地是营养丰富,生物多样性的栖息地,提供了广泛的好处。在中亚飞行路线(CAF)和Vembanad Ramsar遗址下有重要的鸟类区。研究人员对2016年6月1日至2019年5月31日从喀拉拉邦埃尔纳库拉姆的Pokkali湿地采集的水样的物理化学性质进行了深入研究。分析并记录了水的温度(°C)、pH、深度(cm)、溶解氧(DO) (mg/L)、盐度(mg/L)、浊度(NTU)、电导率(μS cm−1)等参数。利用PAST软件分析了各参数之间的相关性。水体的理化参数对研究区生物多样性和生态环境具有重要影响。这些水生参数的数据收集对于评估湿地生态系统的状况和生物多样性至关重要。
{"title":"Study on the physico-chemical properties of water in the Pokkali wetlands of Ernakulam, Kerala, India","authors":"Surya Babu S., Raju Thomas K.","doi":"10.2166/wpt.2023.164","DOIUrl":"https://doi.org/10.2166/wpt.2023.164","url":null,"abstract":"Abstract The Pokkali wetlands of Ernakulam District, Kerala, are incredibly nutrient-rich, biodiverse habitats that offer a wide range of benefits. There are important bird areas that lie under the Central Asian Flyway (CAF) and the Vembanad Ramsar site. An intensive study was carried out on the physico-chemical properties of water samples collected from the Pokkali wetlands of Ernakulam, Kerala, from 1 June 2016 to 31 May 2019. The water parameters, such as temperature (°C), pH, depth (cm), dissolved oxygen (DO) (mg/L), salinity (mg/L), turbidity (NTU), and electrical conductivity (μS cm−1) were analysed and recorded. The correlation between various parameters was analysed using the PAST software. The physico-chemical parameters of water have an influence on the biodiversity and ecology of the study area. Data collection about these aquatic parameters is essential to assess the status and biodiversity of the wetland ecosystem.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136032971","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
Assessing crop–livestock water productivity in mixed-farming systems across climatic zones of Burkina Faso 评估布基纳法索跨气候带混合耕作系统的作物-牲畜水分生产力
Q3 Environmental Science Pub Date : 2023-10-12 DOI: 10.2166/wpt.2023.162
Charles Lamoussa Sanou, Sampson Kwaku Agodzo, Enoch Bessah, Philip Antwi-Agyei
Abstract Climate change adversely impacts food and feed production, depletes water, and increases the vulnerability of the people living within arid and semi-arid areas. The current study aims to assess crop–livestock water productivity within such drought-recurrent or water-stressed regions. This was done through secondary data collection and interviews from 589 households across the Sudan, Sudan–Sahel, and Sahel climatic zones of Burkina Faso. The findings confirm that the feeding strategies of livestock were based essentially on natural pasture, crop residues, and agricultural by-products. Moreover, crop–livestock total water productivity (TWP) was found generally higher in the Sudan zone (0.29 ± 0.02 $US/m3) characterized by more favorable climatic conditions than the Sudan–Sahel and Sahel regions that experienced a similar TWP (0.21 ± 0.01 $US/m3). The research gives insight into the valuation of virtual water contained in livestock feeds. Improving the accessibility in quantity and quality of such feeds through informed policy actions could enhance returns on transpired water. Additionally, other water harvesting and conservation methods are also essential to sustain more productive crop–livestock systems within water-stressed regions like Burkina Faso.
气候变化对粮食和饲料生产产生不利影响,导致水资源枯竭,并增加了干旱和半干旱地区人民的脆弱性。目前的研究旨在评估这些干旱反复发生或缺水地区的作物-牲畜水分生产力。这是通过对苏丹、苏丹-萨赫勒和布基纳法索萨赫勒气候带的589户家庭进行二次数据收集和访谈来完成的。研究结果证实,牲畜的饲养策略主要基于天然牧草、作物残留物和农业副产品。此外,气候条件有利的苏丹区作物-牲畜总水分生产力(TWP)普遍高于气候条件相似的苏丹-萨赫勒区和萨赫勒区(TWP)(0.21±0.01美元/m3)。该研究对牲畜饲料中所含虚拟水的估值提供了深入的见解。通过知情的政策行动提高这种饲料在数量和质量上的可获得性,可以提高蒸发水的回报。此外,在布基纳法索等缺水地区,其他集水和节水方法对于维持更高产的作物-牲畜系统也至关重要。
{"title":"Assessing crop–livestock water productivity in mixed-farming systems across climatic zones of Burkina Faso","authors":"Charles Lamoussa Sanou, Sampson Kwaku Agodzo, Enoch Bessah, Philip Antwi-Agyei","doi":"10.2166/wpt.2023.162","DOIUrl":"https://doi.org/10.2166/wpt.2023.162","url":null,"abstract":"Abstract Climate change adversely impacts food and feed production, depletes water, and increases the vulnerability of the people living within arid and semi-arid areas. The current study aims to assess crop–livestock water productivity within such drought-recurrent or water-stressed regions. This was done through secondary data collection and interviews from 589 households across the Sudan, Sudan–Sahel, and Sahel climatic zones of Burkina Faso. The findings confirm that the feeding strategies of livestock were based essentially on natural pasture, crop residues, and agricultural by-products. Moreover, crop–livestock total water productivity (TWP) was found generally higher in the Sudan zone (0.29 ± 0.02 $US/m3) characterized by more favorable climatic conditions than the Sudan–Sahel and Sahel regions that experienced a similar TWP (0.21 ± 0.01 $US/m3). The research gives insight into the valuation of virtual water contained in livestock feeds. Improving the accessibility in quantity and quality of such feeds through informed policy actions could enhance returns on transpired water. Additionally, other water harvesting and conservation methods are also essential to sustain more productive crop–livestock systems within water-stressed regions like Burkina Faso.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135968306","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
Impact of climate change on droughts: a case study of the Zard River Basin in Iran 气候变化对干旱的影响:以伊朗扎德河流域为例研究
Q3 Environmental Science Pub Date : 2023-10-10 DOI: 10.2166/wpt.2023.159
Pedram Mahdavi, Hossein Ghorbanizadeh Kharazi
Abstract In this research, a Soil and Water Assessment Tool (SWAT) model was assembled and used to evaluate the effects of climate change on runoff and drought in a semi-arid basin in Iran. The SWAT model showed good performance in the simulation of runoff. Eleven AOGCMs under RCP45 and RCP85 scenarios and the period 2022–2041 were selected to investigate future projections. It was predicted that runoff would decrease significantly under all scenarios. The average monthly flow at the basin outlet averaged over a year is predicted to fall from 8.75 to 6.78 m3/s over the next 20 years. In this research, the meteorological and hydrological droughts were estimated using SPI and SDI indices, respectively. By coupling climate change scenarios and SWAT models, it was found that the severity of droughts in the future will be far greater than has ever happened before.
摘要/ Abstract摘要:本研究构建了一个土壤和水分评估工具(SWAT)模型,并利用该模型评估了气候变化对伊朗半干旱流域径流和干旱的影响。SWAT模型在径流模拟中表现出较好的效果。选择RCP45和RCP85情景下的11个aogcm,研究2022-2041年期间的未来预测。据预测,在所有情景下,径流都将显著减少。未来20年,流域出口年平均月流量将从8.75 m3/s下降到6.78 m3/s。本研究分别利用SPI指数和SDI指数估算气象干旱和水文干旱。通过将气候变化情景与SWAT模型相结合,发现未来干旱的严重程度将远远超过以往任何时候。
{"title":"Impact of climate change on droughts: a case study of the Zard River Basin in Iran","authors":"Pedram Mahdavi, Hossein Ghorbanizadeh Kharazi","doi":"10.2166/wpt.2023.159","DOIUrl":"https://doi.org/10.2166/wpt.2023.159","url":null,"abstract":"Abstract In this research, a Soil and Water Assessment Tool (SWAT) model was assembled and used to evaluate the effects of climate change on runoff and drought in a semi-arid basin in Iran. The SWAT model showed good performance in the simulation of runoff. Eleven AOGCMs under RCP45 and RCP85 scenarios and the period 2022–2041 were selected to investigate future projections. It was predicted that runoff would decrease significantly under all scenarios. The average monthly flow at the basin outlet averaged over a year is predicted to fall from 8.75 to 6.78 m3/s over the next 20 years. In this research, the meteorological and hydrological droughts were estimated using SPI and SDI indices, respectively. By coupling climate change scenarios and SWAT models, it was found that the severity of droughts in the future will be far greater than has ever happened before.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136294898","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
Comparison of economic benefits for the utilization of reclaimed resources from wastewater treatment plants: a case study in Beijing 污水处理厂再生资源利用的经济效益比较——以北京市为例
Q3 Environmental Science Pub Date : 2023-10-09 DOI: 10.2166/wpt.2023.161
Yongfeng Hu, Yongxiang Zhang, Kun Wang
Abstract The fate of resource recovery is significantly influenced by the standards of water quality and bio-dried excess sludge for various applications. These standards must be practically attainable while ensuring public and environmental health, safety, and economic advantages. The present study investigates a reclaimed wastewater treatment plant (WWTP) in Beijing that incorporates both reclaimed water utilization facility and bio-dried excess sludge treatment. The study elucidates the standards for reclaimed water quality and bio-dried excess sludge for diverse applications. Notably, reclaimed water demonstrates substantial market demand in terms of economic benefits. However, bio-dried excess faces challenges due to higher operational costs and lower TP content. The heat power of the WWTP effluent water source can not only be harnessed for the bio-drying process blowers but also be elevated air temperatures to expedite the bio-drying process.
各种应用的水质标准和生物干燥剩余污泥对资源回收的命运有很大影响。这些标准必须切实可行,同时确保公共和环境健康、安全和经济效益。本研究以北京某中水处理厂为研究对象,研究了中水利用装置和生物干燥污泥处理装置。本研究阐明了不同用途的再生水水质标准和生物干燥剩余污泥标准。值得注意的是,再生水在经济效益方面具有巨大的市场需求。然而,由于较高的操作成本和较低的TP含量,生物干燥过剩面临挑战。污水处理厂出水水源的热能不仅可以用于生物干燥过程鼓风机,还可以提高空气温度以加速生物干燥过程。
{"title":"Comparison of economic benefits for the utilization of reclaimed resources from wastewater treatment plants: a case study in Beijing","authors":"Yongfeng Hu, Yongxiang Zhang, Kun Wang","doi":"10.2166/wpt.2023.161","DOIUrl":"https://doi.org/10.2166/wpt.2023.161","url":null,"abstract":"Abstract The fate of resource recovery is significantly influenced by the standards of water quality and bio-dried excess sludge for various applications. These standards must be practically attainable while ensuring public and environmental health, safety, and economic advantages. The present study investigates a reclaimed wastewater treatment plant (WWTP) in Beijing that incorporates both reclaimed water utilization facility and bio-dried excess sludge treatment. The study elucidates the standards for reclaimed water quality and bio-dried excess sludge for diverse applications. Notably, reclaimed water demonstrates substantial market demand in terms of economic benefits. However, bio-dried excess faces challenges due to higher operational costs and lower TP content. The heat power of the WWTP effluent water source can not only be harnessed for the bio-drying process blowers but also be elevated air temperatures to expedite the bio-drying process.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135093614","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
Addressing non-revenue water as a global problem and its interlinkages with sustainable development goals 将非收入水作为一个全球性问题处理,并将其与可持续发展目标联系起来
Q3 Environmental Science Pub Date : 2023-10-06 DOI: 10.2166/wpt.2023.157
Hatem Taha AbuEltayef, Khaldoun S. AbuAlhin, Khalil M. Alastal
Abstract By 2050, over 40% of the global population could face severe water stress. The 2030 Agenda explicitly integrates water resources, supply, and sanitation, emphasizing sustainability for present and future generations. Non-revenue water (NRW) creates a barrier to sustainability through energy, water loss, and money not collected through water bills. However, NRW is well recognized by water service providers, and a comprehensive solution is lacking. Addressing NRW is vital to sustainable operations and achieving the Sustainable Development Goals (SDGs). This desk literature review investigates NRW's links with SDGs, highlighting global and local impacts, flameworking interconnections, and revealing economic, social, and environmental consequences. The study revealed that NRW not only aligns with various SDGs, particularly SDG 6 and SDG 13, but also has synergies with other goals related to energy and sustainable consumption. Reducing NRW can achieve more sustainable and resilient water systems, and contribute to the broader SDG. The cost of NRW extends beyond the financial implications for water utilities. It also encompasses the economic impacts on industries and businesses, which impacts exceeded water productivity, increased operational costs, and economic development constraints.
到2050年,全球40%以上的人口将面临严重的水资源压力。《2030年议程》明确整合了水资源、供水和卫生,强调当代和子孙后代的可持续性。非收入水(NRW)通过能源、水损失和未通过水费收取的资金,为可持续发展创造了障碍。然而,北威州是水务公司公认的,缺乏一个全面的解决方案。解决北威州问题对于可持续运营和实现可持续发展目标(SDGs)至关重要。这篇文献综述调查了北威州与可持续发展目标的联系,突出了全球和地方影响,框架相互联系,并揭示了经济、社会和环境后果。研究表明,北威州不仅符合各项可持续发展目标,特别是可持续发展目标6和13,而且与其他与能源和可持续消费相关的目标具有协同效应。减少北水北流可以实现更具可持续性和弹性的水系统,并有助于实现更广泛的可持续发展目标。北威州的成本超出了对水务公司的财务影响。它还包括对工业和企业的经济影响,这些影响超出了水生产力,增加了运营成本,并限制了经济发展。
{"title":"Addressing non-revenue water as a global problem and its interlinkages with sustainable development goals","authors":"Hatem Taha AbuEltayef, Khaldoun S. AbuAlhin, Khalil M. Alastal","doi":"10.2166/wpt.2023.157","DOIUrl":"https://doi.org/10.2166/wpt.2023.157","url":null,"abstract":"Abstract By 2050, over 40% of the global population could face severe water stress. The 2030 Agenda explicitly integrates water resources, supply, and sanitation, emphasizing sustainability for present and future generations. Non-revenue water (NRW) creates a barrier to sustainability through energy, water loss, and money not collected through water bills. However, NRW is well recognized by water service providers, and a comprehensive solution is lacking. Addressing NRW is vital to sustainable operations and achieving the Sustainable Development Goals (SDGs). This desk literature review investigates NRW's links with SDGs, highlighting global and local impacts, flameworking interconnections, and revealing economic, social, and environmental consequences. The study revealed that NRW not only aligns with various SDGs, particularly SDG 6 and SDG 13, but also has synergies with other goals related to energy and sustainable consumption. Reducing NRW can achieve more sustainable and resilient water systems, and contribute to the broader SDG. The cost of NRW extends beyond the financial implications for water utilities. It also encompasses the economic impacts on industries and businesses, which impacts exceeded water productivity, increased operational costs, and economic development constraints.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135352574","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
Bacterial communities structure in constructed wetlands for municipal and industrial wastewater treatment in Tanzania 坦桑尼亚用于市政和工业废水处理的人工湿地细菌群落结构
Q3 Environmental Science Pub Date : 2023-10-05 DOI: 10.2166/wpt.2023.155
Gerubin Liberath Msaki, Sadikiel E. Kaale, Karoli Nicholas Njau, Thomas J. Lyimo
Abstract Bacteria are the largest and most essential microorganisms in wastewater treatment systems. Despite the vital role bacteria play in enhancing wastewater treatment, its community structure and diversity remain poorly known. This study elucidated bacterial diversity and community structure in constructed wetlands (CWs) for municipal and industrial wastewater treatment using a culture-independent approach. Analysis of physicochemical parameters and Illumina high-throughput sequencing of V3 and V4 hypervariable regions of 16S rRNA gene bacterial community was performed. The results showed that the Proteobacteria were dominant (48.66%) phyla across all CWs. The Gammaproteobacteria class (27.67%), family Comamonadaceae (35.79) and Genus Flavobacterium (4.35%) were dominant across studied CWs. Bacterial abundance increased from the inlet to the outlet, with CWs having a higher abundance around the outlet, showing a good performance. The Shannon–Wiener index showed the highest species diversity (H = 1.45) in Banana Investment Limited CWs treating industrial wastewater. This study found significant bacterial diversity across studied CWs, with higher abundance and diversity at the outlet indicating better performance than those with low abundance and diversity at the outlet. We recommend a longitudinal investigation at each CWs section to confirm and establish the role of bacterial diversity on the performance pattern of CWs.
细菌是污水处理系统中最大、最重要的微生物。尽管细菌在污水处理中起着至关重要的作用,但其群落结构和多样性仍然鲜为人知。本研究利用不依赖培养的方法研究了人工湿地(CWs)处理城市和工业废水的细菌多样性和群落结构。对16S rRNA基因细菌群落的V3和V4高变区进行理化参数分析和Illumina高通量测序。结果表明,变形菌门在所有CWs中均占优势门(48.66%)。Gammaproteobacteria纲(27.67%)、Comamonadaceae科(35.79%)和Flavobacterium属(4.35%)在研究的CWs中占主导地位。细菌丰度从入口向出口逐渐增加,出口附近的CWs丰度较高,表现出良好的性能。Shannon-Wiener指数显示,香蕉投资有限公司处理工业废水的CWs物种多样性最高(H = 1.45)。本研究发现,在所研究的CWs中存在显著的细菌多样性,出口丰度和多样性较高的CWs比出口丰度和多样性较低的CWs性能更好。我们建议对每个化粪池进行纵向调查,以确认和确定细菌多样性对化粪池性能模式的作用。
{"title":"Bacterial communities structure in constructed wetlands for municipal and industrial wastewater treatment in Tanzania","authors":"Gerubin Liberath Msaki, Sadikiel E. Kaale, Karoli Nicholas Njau, Thomas J. Lyimo","doi":"10.2166/wpt.2023.155","DOIUrl":"https://doi.org/10.2166/wpt.2023.155","url":null,"abstract":"Abstract Bacteria are the largest and most essential microorganisms in wastewater treatment systems. Despite the vital role bacteria play in enhancing wastewater treatment, its community structure and diversity remain poorly known. This study elucidated bacterial diversity and community structure in constructed wetlands (CWs) for municipal and industrial wastewater treatment using a culture-independent approach. Analysis of physicochemical parameters and Illumina high-throughput sequencing of V3 and V4 hypervariable regions of 16S rRNA gene bacterial community was performed. The results showed that the Proteobacteria were dominant (48.66%) phyla across all CWs. The Gammaproteobacteria class (27.67%), family Comamonadaceae (35.79) and Genus Flavobacterium (4.35%) were dominant across studied CWs. Bacterial abundance increased from the inlet to the outlet, with CWs having a higher abundance around the outlet, showing a good performance. The Shannon–Wiener index showed the highest species diversity (H = 1.45) in Banana Investment Limited CWs treating industrial wastewater. This study found significant bacterial diversity across studied CWs, with higher abundance and diversity at the outlet indicating better performance than those with low abundance and diversity at the outlet. We recommend a longitudinal investigation at each CWs section to confirm and establish the role of bacterial diversity on the performance pattern of CWs.","PeriodicalId":23794,"journal":{"name":"Water Practice and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135481389","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
期刊
Water Practice and Technology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1