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Optimal locations of monitoring stations in water distribution systems under multiple demand patterns

Shuming LIU, Wenjun LIU, Jinduan CHEN, Qi WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 204-212 doi: 10.1007/s11783-011-0364-9

Abstract: calculated by accumulating their demand coverage under each demand pattern, and the impact of temporal distributionthe set of optimal locations of monitoring stations obtained using the DCI method can represent the waterquality of water distribution systems under multiple demand patterns better than the one obtained using

Keywords： demand coverage     monitoring     optimization     water distribution network     water quality    

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Responses of bacterial strains isolated from drinking water environments to N-acyl-L-homoserine lactones

Zhuoying WU, Qing WANG, Feng GUO, Shenghua ZHANG, Qipei JIANG, Xin YU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 205-214 doi: 10.1007/s11783-013-0492-5

Abstract: Often as a result of biofilm formation, drinking water distribution systems (DWDS) are regularly facedQuorum sensing (QS) systems play a marked role in the regulation of microbial biofilm formation; thus, inhibition of QS systems may provide a promising approach to biofilm formation control in DWDS.In the present study, 22 bacterial strains were isolated from drinking water-related environments.This suggested that, in order to find an applicable QS inhibition approach for biofilm control in DWDS

Keywords： drinking water distribution systems (DWDS)     biofilm     quorum sensing (QS)     N-acyl-L-homoserine lactones (    

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A red water occurrence in drinking water distribution systems caused by changes in water source in Beijing

ZHANG Xiaojian,MI Zilong,WANG Yang,LIU Shuming,NIU Zhangbin,LU Pinpin,WANG Jun,GU Junnong,CHEN Chao

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 417-426 doi: 10.1007/s11783-013-0558-4

Abstract: A red water phenomenon occurred in several communities few days after the change of water source in BeijingThe results indicated that a significant increase in sulphate concentration as a result of the new watersource was the cause of the red water phenomenon.The mechanism of iron release was found that the high-concentration sulphate in the new water source-fold higher than that occurring within the local source water.

Keywords： iron release     drinking water distribution system     sulphate     phosphate     red water control     water quality stability    

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Energy supply for water electrolysis systems using wind and solar energy to produce hydrogen: a case

Mostafa REZAEI, Ali MOSTAFAEIPOUR, Mojtaba QOLIPOUR, Mozhgan MOMENI

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 539-550 doi: 10.1007/s11708-019-0635-x

Abstract: of this study is to evaluate wind and solar energy potentials in prone areas of Iran by the Weibull distributionAfter examining three different types of commercial wind turbines and photovoltaic (PV) systems, it becomesBesides, by installing one thousand sets of X21-345 PV systems in Zahedan, 20 kg/d of hydrogen, enough

Keywords： wind energy     solar energy     water electrolysis     hydrogen production     Weibull distribution function (WDF)     Angstrom-Prescott    

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Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 839-848 doi: 10.1007/s11783-012-0409-8

Abstract: In this paper, it proposed an index system for hazard and vulnerability evaluations of water distributionThe presented method was therefore applied to the water network of the city of Zhenjiang, which containstwo water plants, two booster pump stations with storage tanks.and the total absorption are the most important factors in hazard and vulnerability evaluation of the waterdistribution network.

Keywords： water distribution network     hazard     vulnerability     contaminant accident    

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Power system reconfiguration and loss minimization for a distribution systems using “Catfish PSO” algorithm

K Sathish KUMAR,S NAVEEN

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 434-442 doi: 10.1007/s11708-014-0313-y

Abstract: One of the very important ways to save electrical energy in the distribution system is network reconfigurationDistribution networks are built as interconnected mesh networks; however, they are arranged to be radialThe distribution feeder reconfiguration is to find a radial operating structure that optimizes networkDistribution feeder reconfiguration is a complex nonlinear combinatorial problem since the status ofThis paper proposes a new evolutionary algorithm (EA) for solving the distribution feeder reconfiguration

Keywords： distribution system reconfiguration (DFR)     power loss reduction     catfish particle swarm optimization (catfish    

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Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 236-242 doi: 10.1007/s11783-010-0218-8

Abstract: Copper and zinc interaction on clearance from water and distribution in different tissues was investigatedClearance rate of Cu or Zn from water was highly dependent on exposure concentration.

Keywords： interaction     mussel     copper     zinc     clearance     distribution    

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Molecular analysis of bacterial community in the tap water with different water ages of a drinking waterdistribution system

Feng Wang, Weiying Li, Yue Li, Junpeng Zhang, Jiping Chen, Wei Zhang, Xuan Wu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1020-4

Abstract: Bacterial community in the drinking water distribution system (DWDS) was regulated by multiple environmentalfactors, many of which varied as a function of water age.In this study, four water samples with different water ages, including finished water (FW, 0 d) and tapwater (TW) [TW1 (1 d), TW2(2 d) and TW3(3 d)], were collected along with the mains of a practical DWDSfor understanding bacterial ecology in the DWDS.

Keywords： Bacterial community     Water age     High-throughput sequencing technique     Drinking water distribution system    

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Estimation of distribution algorithm enhanced particle swarm optimization for water distribution network

Xuewei QI,Ke LI,Walter D. POTTER

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 341-351 doi: 10.1007/s11783-015-0776-z

Abstract: The optimization of a water distribution network (WDN) is a highly nonlinear, multi-modal, and constrainedAn improved estimation of distribution algorithm (EDA) using historic best positions to construct a sampleTwo water distribution network benchmark examples from the literature are adopted to evaluate the performance

Keywords： particle swarm optimization (PSO)     diversity control     estimation of distribution algorithm (EDA)     waterdistribution network (WDN)     premature convergence     hybrid strategy    

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Synergistic effects of sodium hypochlorite disinfection and iron-oxidizing bacteria on early corrosion in cast iron pipes

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1506-3

Abstract:

• The early corrosion process in the cast iron pipes was investigated.

Keywords： Cast iron pipe corrosion     Drinking water distribution systems     Chlorine disinfection     Iron-oxidizing    

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Application of Ice Pigging in a Drinking Water Distribution System: Impacts on Pipes and Bulk Water Quality

Yujing Huang,Zhiwei Chen,Guilin He,Yu Shao,Shuang Song,Feilong Dong,Tuqiao Zhang,

Engineering doi: 10.1016/j.eng.2023.09.016

Abstract: Ice pigging is an emerging technique for pipe cleaning in drinking water distribution systems.However, substantial confusion and controversy exist on the potential impacts of ice pigging on bulk waterthe microstructural features and composition of sediments and microbial community structures in bulk waterwith different materials in complex networks could mitigate the risk of losing ice pigs and degrading waterThe bacterial richness and diversity of bulk water decreased significantly after ice pigging.

Keywords： Ice pigging     Pipe cleaning     Drinking water distribution system     Bacterial community     Sediments    

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Changes of microbial composition during wastewater reclamation and distribution systems revealed by high-throughput

Yiwen LIN,Dan LI,Siyu ZENG,Miao HE

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 539-547 doi: 10.1007/s11783-016-0830-5

Abstract: pyrosequencing to investigate microbial and pathogenic communities in two wastewater reclamation and distributionsystems.A total of 11972 effective 16S rRNA sequences were acquired from these two reclamation systems, and thentwo systems, respectively.storage and distribution processes.

Keywords： wastewater reclamation systems     microbial community     pathogenic community     454-pyrosequencing    

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Potential shift of bacterial community structure and corrosion-related bacteria in drinking water distributionpipeline driven by water source switching

Yue Hu, Ding Dong, Kun Wan, Chao Chen, Xin Yu, Huirong Lin

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1320-3

Abstract: As a result of pollution in the present water sources, cities have been forced to utilize cleaner waterThere are few reports regarding the potential shift of bacterial community structure driven by waterThree types of finished water were used for simulation, the polluted source water from the Qiantang andDongtiaoxi Rivers (China) was replaced by cleaner water from Qiandao Lake (China).It was observed that the level of culturable bacteria declined by 2–3 orders of magnitude after water

Keywords： Drinking water biosafety     Water source switching     Drinking water distribution system     Transition effects    

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Modeling effects of a tidal barrage on water quality indicator distribution in the Severn Estuary

Guanghai GAO, Roger A. FALCONER, Binliang LIN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 211-218 doi: 10.1007/s11783-012-0464-1

Abstract: impacts of proposed Severn Barrage on the hydrodynamic, sediment transport and faecal indicator organism distribution

Keywords： water quality indicator     Severn Estuary     numerical model     tidal energy    

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Fault classification and reconfiguration of distribution systems using equivalent capacity margin method

K. Sathish KUMAR, T. JAYABARATHI

Frontiers in Energy 2012, Volume 6, Issue 4,   Pages 394-402 doi: 10.1007/s11708-012-0211-0

Abstract: This paper investigates the capability of support vector machines (SVM) for prediction of fault classification and the use of the concept of equivalent capacity margin (ECM) for restoration of the power system. The SVM, as a novel type of machine learning based on statistical learning theory, achieves good generalization ability by adopting a structural risk minimization (SRM) induction principle aimed at minimizing a bound on the generalization error of a model rather than the minimization of the error on the training data only. Here, the SVM has been used as a classification. The inputs of the SVM model are power and voltage values. An equation has been developed for the prediction of the fault in the power system based on the developed SVM model. The next steps of this paper are the restoration and reconfiguration by using the ECM concept, the development of a code, and the testing of the results with various load outages, which have been executed for a 12 load system.

Keywords： support vector machines (SVM)     structural risk minimization (SRM)     equivalent capacity margin (ECM)     restoration     fault classification    

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Title Author Date Type Operation

Optimal locations of monitoring stations in water distribution systems under multiple demand patterns

Shuming LIU, Wenjun LIU, Jinduan CHEN, Qi WANG

Journal Article

Responses of bacterial strains isolated from drinking water environments to N-acyl-L-homoserine lactones

Zhuoying WU, Qing WANG, Feng GUO, Shenghua ZHANG, Qipei JIANG, Xin YU

Journal Article

A red water occurrence in drinking water distribution systems caused by changes in water source in Beijing

ZHANG Xiaojian,MI Zilong,WANG Yang,LIU Shuming,NIU Zhangbin,LU Pinpin,WANG Jun,GU Junnong,CHEN Chao

Journal Article

Energy supply for water electrolysis systems using wind and solar energy to produce hydrogen: a case

Mostafa REZAEI, Ali MOSTAFAEIPOUR, Mojtaba QOLIPOUR, Mozhgan MOMENI

Journal Article

Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Journal Article

Power system reconfiguration and loss minimization for a distribution systems using “Catfish PSO” algorithm

K Sathish KUMAR,S NAVEEN

Journal Article

Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Journal Article

Molecular analysis of bacterial community in the tap water with different water ages of a drinking waterdistribution system

Feng Wang, Weiying Li, Yue Li, Junpeng Zhang, Jiping Chen, Wei Zhang, Xuan Wu

Journal Article

Estimation of distribution algorithm enhanced particle swarm optimization for water distribution network

Xuewei QI,Ke LI,Walter D. POTTER

Journal Article

Synergistic effects of sodium hypochlorite disinfection and iron-oxidizing bacteria on early corrosion in cast iron pipes

Journal Article

Application of Ice Pigging in a Drinking Water Distribution System: Impacts on Pipes and Bulk Water Quality

Yujing Huang,Zhiwei Chen,Guilin He,Yu Shao,Shuang Song,Feilong Dong,Tuqiao Zhang,

Journal Article

Changes of microbial composition during wastewater reclamation and distribution systems revealed by high-throughput

Yiwen LIN,Dan LI,Siyu ZENG,Miao HE

Journal Article

Potential shift of bacterial community structure and corrosion-related bacteria in drinking water distributionpipeline driven by water source switching

Yue Hu, Ding Dong, Kun Wan, Chao Chen, Xin Yu, Huirong Lin

Journal Article

Modeling effects of a tidal barrage on water quality indicator distribution in the Severn Estuary

Guanghai GAO, Roger A. FALCONER, Binliang LIN

Journal Article

Fault classification and reconfiguration of distribution systems using equivalent capacity margin method

K. Sathish KUMAR, T. JAYABARATHI

Journal Article