The decay kinetics of residual chlorine in cooling seawater simulation experiments

查看全文 作　　者：ZENG [1,2]Jiangning;JIANG [2]Zhibing;CHEN [2]Quanzhen;ZHENG [1]Ping;HUANG [2]Yijun

机构地区：[1]College of Environmental and Resource Science, Zhejiang University, Hangzhou 310029, China;[2]Laboratory of Marine Ecosystem and Biogeochemistry of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

出　　处：《Acta Oceanologica Sinica》索引2009年第28卷第2期,共6页

基　　金：The Foundation of Program on Research for Public Good of MOST of China under contract No2004DIB3J087;the Youth Foundation of Marine Science of State Oceanic Administration of China under contract No 2005106;the Provincial Natural Science Foundation of Zhejiang, China under contract No Y504012 摘　　要：To find out the decay character of residual chlorine (RC) in the sea water, the concentration of RC was analyzed by N, N-diethyl-p-phenylenediamine (DPD) method under different simulation experimental conditions, in which salinity, temperature, and Chemical Oxygen Demand (COD) were selected. The water used in the experiment was the mixture of aging ocean water, coastal water and extracting solution of coastal sediment at appropriate level. Results are shown as follows: (1) Piecewise function can well reffect the decay dynamics of RC in the cooling seawater. Concretely, the decay dynamics of first 1 min is too rapid to ascertain using a specific kinetic function, and that of the time from 1 to 30 min is fit for the first-order kinetic model. (2) The results could be the foundation of the chemical behavior of RC in seawater, and be used as not only the guidance of the coastal power plants production and sea water desalting companies, but also the establishment of the correlative trade standard. 关键词：动力学模型海水冷却衰变性质模拟实验余氯钢筋混凝土化学需氧量实验条件

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The decay kinetics of residual chlorine in cooling seawater simulation experiments

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