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2篇 您的检索式:作者名="Zhangbin NIU"
    题名 作者 年代 出处 被引量
1A red water occurrence in drinking water distribution systems caused by changes in water source in Beijing, China: mechanism analysis and control measures显示文摘Xiaojian ZHANG Zilong MI Yang WANG Shuming LIU Zhangbin NIU Pinpin LU Jun WANG Junnong GU Chao CHEN 2014Frontiers of Environmental Science & Engineering2014,8,3:7
2Biostability in distribution systems in one city in southern China: Characteristics, modeling and control strategy显示文摘This study investigated the bacterial regrowth in drinking water distribution systems receiving finished water from an advanced drinking water treatment plant in one city in southern China. Thirteen nodes in two water supply zones with different aged pipelines were selected to monitor water temperature, dissolved oxygen(DO), chloramine residual, assimilable organic carbon(AOC), and heterotrophic plate counts(HPC). Regression and principal component analyses indicated that HPC had a strong correlation with chloramine residual. Based on Chick-Watson's Law and the Monod equation, biostability curves under different conditions were developed to achieve the goal of HPC 100 CFU/mL. The biostability curves could interpret the scenario under various AOC concentrations and predict the required chloramine residual concentration under the condition of high AOC level. The simulation was also carried out to predict the scenario with a stricter HPC goal( 50 CFU/mL) and determine the required chloramine residual. The biological regrowth control strategy was assessed using biostability curve analysis. The results indicated that maintaining high chloramine residual concentration was the most practical way to achieve the goal of HPC 100 CFU/mL. Biostability curves could be a very useful tool for biostability control in distribution systems. This work could provide some new insights towards biostability control in real distribution systems.Pinpin Lu Xiaojian Zhang Chiqian Zhang Zhangbin Niu Shuguang Xie Chao Chen 2014Journal of Environmental Sciences2014,26,2:7
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