文档介绍：第 27 卷
第 7 期
中国给水排水
Vol. 27 No. 7
2011 年 4 月
CHINA WATER & WASTEWATER
Apr. 2011
生物接触氧化法的同步硝化反硝化影响因素研究
1
1 1 2
俊
3
( ,江苏南京 210098; ,江苏常州
213159; ,江苏常州 213172)
摘
要:
研究了生物接触氧化法同步硝化反硝化系统中 HRT、DO、COD及生物膜厚度对脱
+
+
和 73. 3% ;在 DO为 2. 0 ~ 4. 0 mg / L范围内,对 TN的去除率随着反应器内 DO浓度的降低呈上升
+
的去除率及容积去除率都处在较高水平,对 TN的平均去除率达到 60% ;生物膜厚度对同步硝化反
硝化有较大影响,增加生物膜厚度有利于同步硝化反硝化的进行。
关键词:
生物接触氧化;
同步硝化反硝化;
生物膜
中图分类号: X703
文献标识码: A
文章编号: 1000 - 4602( 2011) 07 - 0022 - 04
Influencing Factors of Simultaneous Nitrification and Denitrification in
Biological Contact Oxidation Process
WANG Yong-cai1 , CHEN Wei1 , ZHENG Xiao-Ying1 , HUANG Wei-li2 , SUN Jun3
( 1. College of Environment,Hohai University,Nanjing 210098,China; 2. Agricultural Bureau
of Wujin District,Changzhou 213159,China; 3. Wujin District Qianhuang Town People’s
Government,Changzhou 213172,China)
Abstract:
The effects of HRT,DO,COD and biofilm thickness on nitrogen removal efficiencY of
simultaneous nitrification and denitrification sYstem in biological contact oxidation process were investiga-
ted. The results show that when DO is 2. 0 mg / L,the effluent COD,TN and NH4+ - N are reduced with
the increase of HRT and are stable with the removal rates of 94% ,55. 9% and 73. 3% when the HRT
reaches 8 h. The removal rate of TN is increased with the decr