AQUA-Water Infrastructure Ecosystems and Society最新文献_第2页

Tackling of hydraulic cavitation in pressurized pipe flow using high- or low-density polyethylene penstock and short-section 利用高密度或低密度聚乙烯压力管和短截面处理高压管道中的水力空化现象

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-31 DOI: 10.2166/aqua.2023.189

Dalila Kraiem, Ali Triki

{"title":"Tackling of hydraulic cavitation in pressurized pipe flow using high- or low-density polyethylene penstock and short-section","authors":"Dalila Kraiem, Ali Triki","doi":"10.2166/aqua.2023.189","DOIUrl":"https://doi.org/10.2166/aqua.2023.189","url":null,"abstract":"Abstract Recent studies have proved that the utilization of polyethylene (PE) short-section or penstock is a promising water hammer control tool. However, the interplay between the magnitude attenuation and the phase offset of pressure-wave oscillations remains challenging. This study aimed at inspecting the capacity of a dual PE penstock/short-section-based control technique, with regard to the aforementioned interplay. In this technique, a PE penstock was lumped to the transient initiating zone of the main pipe and a short-section of the counter extremity of the pipe was replaced with PE. The transient pressure-wave behavior in a gravitational viscoelastic pipe involving cavitation was described by the extended 1D water hammer equations embedding the Vitkovsky and Kelvin–Voigt add-ons. The numerical solution was performed by the fixed grid method of characteristics. The high- (HDPE) and low-density (LDPE) were demonstrated in this study. Analysis revealed that upgrading techniques based on LDPE enabled a desirable tradeoff between the magnitude attenuation and the phase offset of pressure-wave oscillations. Particularly, the dual penstock/short-section specific upgrading technique allowed a more important attenuation magnitude of pressure peak (or crest), and led to a similar expansion of the wave oscillation period. Furthermore, results evidenced that the proposed technique outperformed the renewal of the original piping system.","PeriodicalId":34693,"journal":{"name":"AQUA-Water Infrastructure Ecosystems and Society","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135870720","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: 0

Negative pressure protection of water supply systems with multi-undulating terrain by one-way surge tanks 多起伏地形供水系统的单向调压罐负压保护

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-28 DOI: 10.2166/aqua.2023.293

Wenlong Zhao, Xiaodong Yu, Ronglian Tang, Lin Shi, Nan Chen, Jian Zhang, Chang Du

{"title":"Negative pressure protection of water supply systems with multi-undulating terrain by one-way surge tanks","authors":"Wenlong Zhao, Xiaodong Yu, Ronglian Tang, Lin Shi, Nan Chen, Jian Zhang, Chang Du","doi":"10.2166/aqua.2023.293","DOIUrl":"https://doi.org/10.2166/aqua.2023.293","url":null,"abstract":"Abstract The protection of negative pressures generated by the hydraulic transient process in the water supply system is crucial to safe and stable operation. In this study, a mathematical model of a pipeline hydraulic transient system with multi-undulating terrain was established based on the method of characteristics (MOC). The generation and development of water hammer negative pressures were analyzed, and double one-way surge tank protection schemes were proposed. It proved that the first surge tank should be located at the initial negative pressure point, and the second surge tank should be located at the second-highest point rather than the highest point. Additionally, compared with the theoretical minimum height, there was an optimization margin for the total surge tank height, which was reduced by 21% in this study. Meanwhile, the applicability of protection schemes and the influence of the one-way surge tank number on the total height were analyzed. The total height reduced with the increase of one-way surge tank number and tended to a minimum value. By comprehensively considering the engineering investment and negative pressure protection effect, the optimal surge tank number could be determined. This research represents an advance in negative pressure protection in multi-undulating terrain and provides support for further engineering studies.","PeriodicalId":34693,"journal":{"name":"AQUA-Water Infrastructure Ecosystems and Society","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136232197","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: 0

Correlations among AHP-based scenic beauty estimation and water quality indicators of typical urban constructed WQT wetland park landscaping 基于ahp的典型城市人工湿地公园景观美度评价与水质指标的相关性研究

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-27 DOI: 10.2166/aqua.2023.071

Yan Huang, Tianjie Li, Yang Jin, Wenting Wu

{"title":"Correlations among AHP-based scenic beauty estimation and water quality indicators of typical urban constructed WQT wetland park landscaping","authors":"Yan Huang, Tianjie Li, Yang Jin, Wenting Wu","doi":"10.2166/aqua.2023.071","DOIUrl":"https://doi.org/10.2166/aqua.2023.071","url":null,"abstract":"Abstract Water environments of urban constructed water quality treatment (WQT) wetland waterscapes are strongly related to water quality, whereas scenic beauty values help achieve better aquatic environments. However, correlations between several water quality indicators (WQIs) and scenic beauty indexes (SBIs) have not been thoroughly revealed in the existing studies. In this research, an analytic hierarchy process (AHP)-based on scenic beauty estimation (SBE) per site in two WQT wetlands has been developed. The weights of indicators were determined by the AHP voting, which includes three main criteria, i.e., conditions of vegetation, physical geographical conditions, and human geographical conditions. SBIs are voted and calculated from the professional group and the unprofessional group. WQIs of typical pollutants (i.e., dissolved oxygen (DO), CODCr, NH3-N, pH, and total phosphorus) were sampled in situ simultaneously. Inter-relationships among SBIs and WQIs are indicated by correlative analysis and a regression model, which highlights that DO increase, CODCr removal, and NH3-N removal can explain 68.8% of changes in the SBI. Accordingly, applications for WQT wetland eco-engineered landscaping (EEL) were suggested to be conducted on quantitative estimations in three aspects, i.e., following strategies of EEL, improving WQT techniques, and applying the attention restoration theory.","PeriodicalId":34693,"journal":{"name":"AQUA-Water Infrastructure Ecosystems and Society","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136235603","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: 0

Adsorptive removal of methyl orange dye in aqueous solutions using calix[4]arene-modified lead sulphide: insight into response surface methodology, isotherm and kinetic studies 用杯[4]芳烃修饰的硫化铅吸附去除水溶液中的甲基橙染料:对响应面方法、等温线和动力学研究的见解

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-27 DOI: 10.2166/aqua.2023.153

Nor Zida Rosly, Abdul Halim Abdullah, Mazliana Ahmad Kamarudin, Siti Efliza Ashari, Shahrul Alang Ahmad

{"title":"Adsorptive removal of methyl orange dye in aqueous solutions using calix[4]arene-modified lead sulphide: insight into response surface methodology, isotherm and kinetic studies","authors":"Nor Zida Rosly, Abdul Halim Abdullah, Mazliana Ahmad Kamarudin, Siti Efliza Ashari, Shahrul Alang Ahmad","doi":"10.2166/aqua.2023.153","DOIUrl":"https://doi.org/10.2166/aqua.2023.153","url":null,"abstract":"Abstract The present study reports the adsorptive potential of an alternative and regenerative adsorbent, lead sulphide (PbS) modified with calix[4]arene towards a methyl orange (MO) dye solution. The chemical and morphological aspects of synthesised PbS nanoparticles and calix[4]arene-modified PbS were analysed by FESEM, EDX and FTIR, which indicated successful immobilisation of calix[4]arene on the PbS surface. The response surface methodology (RSM), based on central composite design (CCD), was conducted to evaluate the significant factors and to optimise the influence of various factors (adsorbent dosage, contact time and pH) on the adsorption of MO. Under optimal conditions (pH of 4, a dosage of 89.70 mg and a contact time of 129.76 min), the maximum adsorption of MO by calix[4]arene-modified PbS was observed. The MO uptake behaviour was well described by the Freundlich model and the pseudo-second-order kinetic model, indicating a multilayer chemical adsorption with a maximum adsorption capacity (qmax) of 3.268 mg/g. The adsorption mechanism of MO dye on the surface of calix[4]arene-modified PbS can be attributed to various interactions such as dipole–dipole hydrogen bonding interactions, Yoshida hydrogen bonding, π–π interactions and electrostatic interaction. The results strongly demonstrated the use of novel adsorbents, calix[4]arene-modified PbS and a reusability strategy as an alternative adsorbent in MO dye removal.","PeriodicalId":34693,"journal":{"name":"AQUA-Water Infrastructure Ecosystems and Society","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136235402","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: 0

Adsorptive removal of Cr(VI) and Cu(II) ions from aqueous solutions by a natural moss 天然苔藓吸附去除水溶液中的铬(VI)和铜(II)离子

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-24 DOI: 10.2166/aqua.2023.299

Sengul Tugba Ozeken, Duygu Ozdes, Celal Duran

{"title":"Adsorptive removal of Cr(VI) and Cu(II) ions from aqueous solutions by a natural moss","authors":"Sengul Tugba Ozeken, Duygu Ozdes, Celal Duran","doi":"10.2166/aqua.2023.299","DOIUrl":"https://doi.org/10.2166/aqua.2023.299","url":null,"abstract":"Abstract The aim of the present research is to develop a new, fast, and easily applicable adsorption method for the removal of hazardous Cr(VI) and Cu(II) ions from the polluted industrial wastewater by using Racomitrium ericoides (Brid.) Brid. (REB), a type of moss. Although there are studies in the literature in which different moss species were used for the removal of heavy metals (HMs), REB was used for the first time in this study. Adsorption experiments were carried out through a batch system. The impact of significant experimental parameters showed that the optimum values of initial pH were 2.0 for Cr(VI) retention and 5.0 for Cu(II), and 360 min was selected as the optimum contact time for both HMs. An artificial neural network (ANN) model was applied to create a predictive model for the uptake efficiency of HMs. Adsorption kinetics of Cr(VI) and Cu(II) ions followed the pseudo-second order model. The maximum adsorption capacities of REB identified through the Langmuir model were 41.2 mg g−1 for Cr(VI) and 22.7 mg g−1 for Cu(II) ions. The results of the study demonstrated that REB can be utilized as an abundant, low-cost, and effective adsorbent in removal of HMs from aqueous solutions.","PeriodicalId":34693,"journal":{"name":"AQUA-Water Infrastructure Ecosystems and Society","volume":"21 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135219914","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: 0

Numerical investigation of hydraulic jumps with USBR and wedge-shaped baffle block basins for lower tailwater 下部尾水楔形挡板池与USBR水跃的数值研究

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-17 DOI: 10.2166/aqua.2023.261

Muhammad Waqas Zaffar, Ishtiaq Hassan, Zulfiqar Ali, Kaleem Sarwar, Muhammad Hassan, Muhammad Taimoor Mustafa, Faizan Ahmed Waris

{"title":"Numerical investigation of hydraulic jumps with USBR and wedge-shaped baffle block basins for lower tailwater","authors":"Muhammad Waqas Zaffar, Ishtiaq Hassan, Zulfiqar Ali, Kaleem Sarwar, Muhammad Hassan, Muhammad Taimoor Mustafa, Faizan Ahmed Waris","doi":"10.2166/aqua.2023.261","DOIUrl":"https://doi.org/10.2166/aqua.2023.261","url":null,"abstract":"Abstract The stilling basin of the Taunsa barrage is a modified form of the United States Bureau of Reclamation (USBR) Type-III basin, which consists of baffle and friction blocks. Studies revealed uprooting of baffle blocks due to their vertical face. Additionally, the literature highlighted issues of rectangular face baffle blocks: less drag, smaller wake area, and flow reattachment. In contrast, the use of wedge-shaped baffle blocks (WSBBs) is limited downstream of open-channel flows. Therefore, this study developed numerical models to investigate the effects of USBR and WSBB basins on the hydraulic jump (HJ) downstream of the Taunsa barrage under lower tailwater conditions. Surface profiles in WSBB and modified USBR basins showed agreement with previous studies, for which the coefficient of determination (R2) reached 0.980 and 0.970, respectively. The HJ efficiencies reached 57.9 and 58.6% in WSBB and modified USBR basins, respectively. The results of sequent depths, roller length, and velocity profiles in the WSBB basin were found more promising than the modified USBR basin, which further confirmed the suitability of the WSBB basin for barrages. Furthermore, WSBB improved flow behaviors in the basin, which showed no fluid reattachment on the sides of WSBB, increased wake regions, and decreased turbulent kinetic energies.","PeriodicalId":34693,"journal":{"name":"AQUA-Water Infrastructure Ecosystems and Society","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136032930","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: 0

WEAP model to assess the water balance and future scenarios in the Chennai Basin, India 评估印度金奈盆地水平衡和未来情景的WEAP模式

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-11 DOI: 10.2166/aqua.2023.144

Puthan Veettil RaziSadath, Mariappan RinishaKartheeshwari, Lakshmanan Elango

引用次数: 0

Topology-distance-based clustering method for water distribution network partitioning 基于拓扑距离的配水网络划分聚类方法

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-10 DOI: 10.2166/aqua.2023.301

Kun Du, Jiangyun Li, Wei Xu, Zilian Liu, Feifei Zheng

{"title":"Topology-distance-based clustering method for water distribution network partitioning","authors":"Kun Du, Jiangyun Li, Wei Xu, Zilian Liu, Feifei Zheng","doi":"10.2166/aqua.2023.301","DOIUrl":"https://doi.org/10.2166/aqua.2023.301","url":null,"abstract":"Abstract Partitioning water distribution networks (WDNs) into district metered areas offers benefits including reduced nonrevenue water and simplified pressure management. However, current research in this field tends to narrowly focus on the topological relationships among nodes, often overlooking the influence of pressure reducing valves (PRVs) and pump stations on clustering results. To address this limitation, this study introduces a topology-distance-based clustering (TDBC) method that enhances the accuracy of partitioning by explicitly considering the impact of PRVs and pump stations. In the TDBC method, the Floyd algorithm is initially employed to construct a topological distance matrix that quantifies the degree of node connectivity. By amplifying topological distances for links including PRVs and pump stations, their effect on clustering results is incorporated. Subsequently, nodes are clustered using the K-means algorithm based on the resulting topology-distance matrix. The proposed TDBC approach is applied to four network cases, and its outcomes are compared with those of two traditional methods. The comparative analysis indicates that the TDBC algorithm achieves precise partitioning results for networks incorporating PRVs or pump stations, while ensuring a harmonious balance between modularity and the uniformity of the partitioning results, even in networks with complex structures and highly interconnected loops.","PeriodicalId":34693,"journal":{"name":"AQUA-Water Infrastructure Ecosystems and Society","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136294895","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: 0

Water pollution remediation in Kazakhstan: evaluating bacterial consortiums for organic pollutant decomposition 哈萨克斯坦水污染修复:评价细菌群落对有机污染物分解的影响

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-06 DOI: 10.2166/aqua.2023.203

Zinigul Sarmurzina, Gulmira Bissenova, Aslan Temirkhanov, Zhanar Tekebayeva, Kunsulu Zakarya

{"title":"Water pollution remediation in Kazakhstan: evaluating bacterial consortiums for organic pollutant decomposition","authors":"Zinigul Sarmurzina, Gulmira Bissenova, Aslan Temirkhanov, Zhanar Tekebayeva, Kunsulu Zakarya","doi":"10.2166/aqua.2023.203","DOIUrl":"https://doi.org/10.2166/aqua.2023.203","url":null,"abstract":"Abstract Wastewater treatment is one of the key problems that has to be solved by environmental biotechnology. Wastewater bioremediation is one of the most efficient and safest methods to replenish water resources. The aim of this study is to investigate the potential of using bacterial consortiums for reducing the organic load in wastewater, specifically focusing on water samples collected from three water bodies in central and northern Kazakhstan, which are known for their high levels of organic pollution. This study utilized bacterial strains from a microorganism collection to create consortiums. These consortiums were used to treat wastewater from polluted water bodies in Kazakhstan, focusing on parameters like COD, BOD5, ammonia, and phosphate. The methodology involved culturing strains, collecting water samples, and analyzing various parameters. Statistical analysis was performed to assess the results. The study found that two bacterial consortiums, 7BLB and 7BLPA, were the most effective in reducing COD, ammonia, and ammonia nitrogen in wastewater. The consortium 6BLP was highly effective at reducing phosphate levels, surpassing acceptable standards. Hydrogen levels met regulatory requirements in all cases. The study recommends further investigation of these consortiums’ impact on other water quality indicators and suggests conducting field experiments in natural water ponds.","PeriodicalId":34693,"journal":{"name":"AQUA-Water Infrastructure Ecosystems and Society","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347080","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: 0

Get prepared for unexpected disasters via advanced analytics and simulation techniques for urban hydraulic engineering and water infrastructure 通过城市水利工程和水利基础设施的先进分析和模拟技术，为意外灾害做好准备

4区环境科学与生态学

AQUA-Water Infrastructure Ecosystems and Society Pub Date : 2023-10-03 DOI: 10.2166/aqua.2023.404

Weiqiang Wang, Yang Yu, Tianyu Xie, Qi Wang

引用次数: 0