|
|||||
|
|
The decay kinetics of residual chlorine in cooling seawater simulation experiments |
|
| 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 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 | |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 | |