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| The decay kinetics of residual chlorine in cooling seawater simulation experiments | |
| 作者姓名： | ZENG Jiangning JIANG Zhibing CHEN Quanzhen ZHENG Ping HUANG Yijun |
| 作者单位： | ZENG Jiangning(College of Environmental and Resource Science, Zhejiang University, Hangzhou 310029, China;Laboratory of Marine Ecosystem and Biogeochemistry of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China);JIANG Zhibing,CHEN Quanzhen,HUANG Yijun(Laboratory of Marine Ecosystem and Biogeochemistry of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China);ZHENG Ping(College of Environmental and Resource Science, Zhejiang University, Hangzhou 310029, China) |
| 基金项目： | The Foundation of Program on Research for Public Good of MOST of China，the Youth Foundation of Marine Science of State Oceanic Administration of China，浙江省自然科学基金 |
| 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 reflect 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 |
| 收稿时间： | 2007/11/25 0:00:00 |
| 修稿时间： | 2008/10/10 0:00:00 |
The decay kinetics of residual chlorine in cooling seawater simulation experiments |
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| ZENG Jiangning,JIANG Zhibing,CHEN Quanzhen,ZHENG Ping,HUANG Yijun.The decay kinetics of residual chlorine in cooling seawater simulation experiments[J].Acta Oceanologica Sinica,2009,28(2):54-59. | |
| Authors: | ZENG Jiangning JIANG Zhibing CHEN Quanzhen ZHENG Ping and HUANG Yijun |
| Institution: | 1. College of Environmental and Resource Science, Zhejiang University, Hangzhou 310029, China;Laboratory of Marine Ecosystem and Biogeochemistry of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China 2. Laboratory of Marine Ecosystem and Biogeochemistry of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China 3. College of Environmental and Resource Science, Zhejiang University, Hangzhou 310029, China |
| Abstract: | 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 reflect 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. |
| Keywords: | residual chlorine cooling seawater decay rate kinetic model |
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