CIESC Journal

• 资源与环境工程 • 上一篇    下一篇

缺氧动态膜生物反应器在淡水/海水养殖废水处理中的运行效果

卢芳芳,洪俊明,尹 娟   

  1. 华侨大学化工学院,福建 厦门 361021
  • 出版日期:2011-11-05 发布日期:2011-11-21

Study on the operational effect of an anoxic dynamic membrane bioreactor for aquaculture/mariculture wastewater treatment

LU Fangfang,HONG Junming,YIN Juan   

  1. College of Chemical engineering,Huaqiao University,Xiamen 361021,Fujian,China
  • Online:2011-11-05 Published:2011-11-21

摘要:

采用缺氧动态膜生物反应器(Anoxic-DMBR)处理淡水和海水养殖废水。结果表明:缺氧动态膜生物反应器对淡水养殖废水和海水养殖废水的CODMn去除率分别为89.5%75.5%;出水总氮浓度分别为1.42 mg/L3.50 mg/L,污泥浓度分别为3850 mg/L3550 mg/L。由于盐度对反硝化菌的酶产生一定的抑制作用,在海水条件下反硝化效率降低了16%。淡水和海水养殖废水的NO3-N的降解速率常数分别为5.02×104 h14.48×104 h1,海水反硝化过程的反应速率低于淡水条件。

Abstract:

An anoxic dynamic membrane bioreactorAnoxic-DMBRwas used to treat aquaculture/mariculture wastewater. The results showed that the CODMn removal rates by A-DMBR for treating aquaculture and mariculture wastewater were 89.5% and 75.5%. The TN concentrations of effluent were about 1.42 mg/L and 3.50 mg/L. And the sludge concentrations were 3850mg/L and 3550 mg/L respectively. Because of the inhibition effect of salt on denitrification enzymethe denitrification efficiency decreased by 16%. The constants of NO3-N reduction rate were 5.02×104 h1 and 4.48×104 h1 in freshwater and seawater respectively. The reaction rate of the denitrification process in seawater was lower than that in freshwater.