A hydraulic analysis of Egypt's district metered area (DMAs) is a significant undertaking that creates a permanent monitoring system and eliminating leaks is highly expensive and time-consuming. More than 40% of water networks in Egypt are over 40 years old. Consequently, Egypt loses around 30% of daily water produced, which accounts for 25.5 Million m3. In this study, Darwin Calibrator was used to predict the proximate location of water leakage in a DMA. This study presents a physically-based method for WDNs calibration of hydraulic models which intends to support leakage, assessment, monitoring and management from the initial stages. Results indicated that the mean pressure (Pa) for inlet at Elshewash measuring point was 20.89 (Pa) and the mean flow was 18.3 (m3). Conversely, mean pressure for outlet was 18.3 (Pa) and mean flow was 8.22 (m3). At Rawafee El Quser measuring points was1.89 (Pa) at the inlet point and mean flow was 17.42 (m3). However, at outlet mean pressure was 1.81(Pa) and mean flow was 6.3 (m3). In all the networks where the node's pressure and input discharge were introduced to the program as observational data, leakage location was determined at or in the exact location. The location and the amount of leakage were calculated. These results were similar to the leakage resulting from the field inspection. It is inferred that the model calibration could lead to a reduction of water leakage by increasing predictive capacity and monitoring instruments, establishing an instant pressure control mechanism and optimising pipe maintenance strategy. These actions could benefit the environment as a result of water and energy savings.
对埃及的区域计量面积(dma)进行水力分析是一项重要的工作，需要建立一个永久性的监测系统，消除泄漏既昂贵又耗时。埃及超过40%的水网使用时间超过40年。因此，埃及每天损失约30%的水，即2550万立方米。在本研究中，达尔文校准器被用于预测DMA漏水的大致位置。本研究提出了一种基于物理的水力模型wdn校准方法，旨在从初始阶段支持泄漏，评估，监测和管理。结果表明，Elshewash测点入口平均压力(Pa)为20.89，平均流量为18.3 (m3)。反之，出口平均压力为18.3 (Pa)，平均流量为8.22 (m3)。在Rawafee El Quser测点，入口点的平均流量为1.89 (Pa)，平均流量为17.42 (m3)。出口平均压力为1.81(Pa)，平均流量为6.3 (m3)。在所有将节点压力和输入流量作为观测数据引入程序的网络中，泄漏位置确定在或在准确位置。计算了泄漏位置和泄漏量。这些结果与现场检查的泄漏情况相似。通过模型标定，可以通过增加预测能力和监测仪器，建立即时压力控制机制和优化管道维护策略来减少漏水。这些行动可以使环境受益，因为节约了水和能源。
{"title":"LEAKAGE ASSESSMENT IN WATER DISTRIBUTION NETWORKS USING HYDRAULIC MODEL CALIBRATION","authors":"M. Elkharbotly, A. Khalifa, M. Seddik","doi":"10.30638/eemj.2023.044","DOIUrl":"https://doi.org/10.30638/eemj.2023.044","url":null,"abstract":"A hydraulic analysis of Egypt's district metered area (DMAs) is a significant undertaking that creates a permanent monitoring system and eliminating leaks is highly expensive and time-consuming. More than 40% of water networks in Egypt are over 40 years old. Consequently, Egypt loses around 30% of daily water produced, which accounts for 25.5 Million m3. In this study, Darwin Calibrator was used to predict the proximate location of water leakage in a DMA. This study presents a physically-based method for WDNs calibration of hydraulic models which intends to support leakage, assessment, monitoring and management from the initial stages. Results indicated that the mean pressure (Pa) for inlet at Elshewash measuring point was 20.89 (Pa) and the mean flow was 18.3 (m3). Conversely, mean pressure for outlet was 18.3 (Pa) and mean flow was 8.22 (m3). At Rawafee El Quser measuring points was1.89 (Pa) at the inlet point and mean flow was 17.42 (m3). However, at outlet mean pressure was 1.81(Pa) and mean flow was 6.3 (m3). In all the networks where the node's pressure and input discharge were introduced to the program as observational data, leakage location was determined at or in the exact location. The location and the amount of leakage were calculated. These results were similar to the leakage resulting from the field inspection. It is inferred that the model calibration could lead to a reduction of water leakage by increasing predictive capacity and monitoring instruments, establishing an instant pressure control mechanism and optimising pipe maintenance strategy. These actions could benefit the environment as a result of water and energy savings.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69522699","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}
Qumail Arshad, Shakil Ahmad, H. Gabriel, Z. H. Dahri, M. Shahid, Ubaid Ullah, Aftab Ullah
In this study, the aim is to examine the United Nations-Sustainable Development Goals (UN-SDGs) and the impending climate change challenges in Pakistan. The focus is on comparing different irrigation techniques in terms of their water savings, cost efficiency, and crop yields, in relation to the conventional flooding method (CFM). Specifically, the research considers the responsive drip irrigation system (RDI), subsurface drip irrigation (SDI), and raised-bed irrigation method (RSB). The data for this study relates to a 1-hectare tomato farm located in the Potohar plateau of Pakistan. Joint interview sessions were conducted to gather integrated data, along with information from previous studies. To analyze the cost-effectiveness of the irrigation techniques, the study utilizes system dynamics (SD) and employs "VENSIM PLE" software. A single SD model was created to meet the requirements for cost-effectiveness analysis (CEA), simulating the implicated techniques over a period of 25 years. Additionally, an optimization scenario was developed using geometric mean maximization, aiming to maximize monetary benefits while maintaining environmental benefits in equilibrium. The findings of this study indicate that the cost-effectiveness ratio (CER) for water-saving capacity is highest for RDI, which can save 0.135 million m 3 of water over 25 years. Furthermore, RDI achieves a 78% higher crop yield compared to the CFM. On the other hand, SDI demonstrates the highest CER for crop yield, offering 41.5% more benefits to farmers when compared to the CFM.
{"title":"CONSERVING WATER: COST AND PRODUCTIVITY ANALYSIS OF RESPONSIVE DRIP AND CONVENTIONAL IRRIGATION","authors":"Qumail Arshad, Shakil Ahmad, H. Gabriel, Z. H. Dahri, M. Shahid, Ubaid Ullah, Aftab Ullah","doi":"10.30638/eemj.2023.050","DOIUrl":"https://doi.org/10.30638/eemj.2023.050","url":null,"abstract":"In this study, the aim is to examine the United Nations-Sustainable Development Goals (UN-SDGs) and the impending climate change challenges in Pakistan. The focus is on comparing different irrigation techniques in terms of their water savings, cost efficiency, and crop yields, in relation to the conventional flooding method (CFM). Specifically, the research considers the responsive drip irrigation system (RDI), subsurface drip irrigation (SDI), and raised-bed irrigation method (RSB). The data for this study relates to a 1-hectare tomato farm located in the Potohar plateau of Pakistan. Joint interview sessions were conducted to gather integrated data, along with information from previous studies. To analyze the cost-effectiveness of the irrigation techniques, the study utilizes system dynamics (SD) and employs \"VENSIM PLE\" software. A single SD model was created to meet the requirements for cost-effectiveness analysis (CEA), simulating the implicated techniques over a period of 25 years. Additionally, an optimization scenario was developed using geometric mean maximization, aiming to maximize monetary benefits while maintaining environmental benefits in equilibrium. The findings of this study indicate that the cost-effectiveness ratio (CER) for water-saving capacity is highest for RDI, which can save 0.135 million m 3 of water over 25 years. Furthermore, RDI achieves a 78% higher crop yield compared to the CFM. On the other hand, SDI demonstrates the highest CER for crop yield, offering 41.5% more benefits to farmers when compared to the CFM.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69523416","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}
Chadia Majdouline, M. Khamar, M. E. A. Jalil, E. Cherkaoui, A. Zouahri
{"title":"CONTROLLED THERMOPHILIC COMPOSTING OF HOUSEHOLD BIOWASTES OVER FOUR SEASONS IN SALE CITY-MOROCCO","authors":"Chadia Majdouline, M. Khamar, M. E. A. Jalil, E. Cherkaoui, A. Zouahri","doi":"10.30638/eemj.2023.060","DOIUrl":"https://doi.org/10.30638/eemj.2023.060","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69525804","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}
{"title":"TREATMENT OF WASTE METALWORKING FLUIDS BY COAGULATION AND CROSS-FLOW MEMBRANE FILTRATION","authors":"Berk Koker, M. Cebeci","doi":"10.30638/eemj.2023.078","DOIUrl":"https://doi.org/10.30638/eemj.2023.078","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69526334","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}
Mahmut Sinan Taspinar, Murat Aydin, Esma Yigider, Guleray Agar
{"title":"MITIGATING EFFECT OF PUTRESCINE AGAINST 2,4-D HERBICIDE IN WHEAT: DNA STABILITY AND METHYLATION","authors":"Mahmut Sinan Taspinar, Murat Aydin, Esma Yigider, Guleray Agar","doi":"10.30638/eemj.2023.105","DOIUrl":"https://doi.org/10.30638/eemj.2023.105","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135009852","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}
{"title":"MONITORING THE DAMAGE AND AIR POLLUTANTS AFTER FOREST FIRES: THE CASE STUDY OF VATERA FIRE IN LESVOS","authors":"Ozer Akyurek","doi":"10.30638/eemj.2023.080","DOIUrl":"https://doi.org/10.30638/eemj.2023.080","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135699203","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}
{"title":"THE ROLE OF AIR POLLUTION IN THE SPREAD OF COVID-19: EVIDENCE FROM ROMANIA","authors":"A. Ionescu, Alexandru Ionescu","doi":"10.30638/eemj.2023.019","DOIUrl":"https://doi.org/10.30638/eemj.2023.019","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"103 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69520610","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：