| ZENG Jiangning,JIANG Zhibing,CHEN Quanzhen,ZHENG Ping,HUANG Yijun. 2009. The decay kinetics of residual chlorine in cooling seawater simulation experiments. Acta Oceanologica Sinica, (2):54－59 |
| The decay kinetics of residual chlorine in cooling seawater simulation experiments |
| The decay kinetics of residual chlorine in cooling seawater simulation experiments |
| Received:November 25, 2007 Revised:October 10, 2008 |
| DOI： |
| Key words:residual chlorine cooling seawater decay rate kinetic model |
| 中文关键词: residual chlorine cooling seawater decay rate kinetic model |
| 基金项目:The Foundation of Program on Research for Public Good of MOST of China under contract No.2004DIB3J087, the Youth Foundation of Marine Science of State Oceanic Administration of China under contract No. 2005106, and the Provincial Natural Science Foundation of Zhejiang, China under contract No. Y504012. |
| Author Name | Affiliation | E-mail | | 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 | jiangningz@126.com | | JIANG Zhibing | Laboratory of Marine Ecosystem and Biogeochemistry of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | CHEN Quanzhen | 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 | | | HUANG Yijun | Laboratory of Marine Ecosystem and Biogeochemistry of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | |
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| 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. |
| 中文摘要: |
| 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. |
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