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含沙水体污染物生物降解反应动力学研究

黄文典, 李嘉, 邓云

黄文典, 李嘉, 邓云. 含沙水体污染物生物降解反应动力学研究[J]. 水科学进展, 2008, 19(5): 635-639.
引用本文: 黄文典, 李嘉, 邓云. 含沙水体污染物生物降解反应动力学研究[J]. 水科学进展, 2008, 19(5): 635-639.
HUANG Wen-dian, LI Jia, DENG Yun. Biodegradation reaction kinetics of pollutants in water body with sediment[J]. Advances in Water Science, 2008, 19(5): 635-639.
Citation: HUANG Wen-dian, LI Jia, DENG Yun. Biodegradation reaction kinetics of pollutants in water body with sediment[J]. Advances in Water Science, 2008, 19(5): 635-639.

含沙水体污染物生物降解反应动力学研究

基金项目: 国家重点基础研究发展计划(973)资助项目(2003CB415204)
详细信息
    作者简介:

    黄文典(1977- ),男,福建安溪人,助理研究员,博士,主要从事环境水力学、泥沙环境学研究.E-mail:ddhwd@163.com

  • 中图分类号: X131.2

Biodegradation reaction kinetics of pollutants in water body with sediment

Funds: The study is financially supported by the National Basic Research Program of China (No.2003CB415204)
  • 摘要: 以含多组分的生活污水为模拟污染物,通过实验方法对含沙水体中污染物生物降解规律进行了研究,得出了污染物生物降解速率常数与含沙量的关系式。研究结果表明:(1)低浓度污染物在含沙水体中的生物降解过程符合一级反应动力学过程;(2)对同一粒径组泥沙而言,含沙量越大,污染物生物降解速度越快。即泥沙的存在促进了污染物的降解;(3)污染物生物降解速率常数随着含沙量的增大而增大,两者存在非线性的函数关系。含沙量增大到一定值时,降解速率常数趋于最大值。
    Abstract: In this paper,the domestic wastewater,a multi-component mixture,is used as the simulat ed pollutants,and two groups of fine sediment with different size as the experiment materials Some experiments are conducted to study the biodegra dation reaction kinetics of pollutants in water with sediment and the expression between the biodegradation rate constants and sediment concentration is established.The analysis of experiment results show that: ①the biodegradation process of low concentration pollutants in water with sediment can be expressed by one order reaction kinetics,②in the water with the same group sediment,the greater sediment concentration is,the faster the pollutants are biodegraded,which means that sediment accelerates the biodegradation of the pollutants,and ③the biodegradation rate constant increases and reaches the maximum with increasing sediment concentration,and there is a nonlinear function between them.
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出版历程
  • 收稿日期:  2007-08-12
  • 刊出日期:  2008-09-24

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