不同有机碳源对SBR工艺同步硝化反硝化影响

化工进展

不同有机碳源对SBR工艺同步硝化反硝化影响

张万友1，张兰河1，2，3，杨涛1，张海丰1

1 东北电力大学化学工程学院，吉林吉林 132012；2 城市水资源开发利用（北方）国家工程研究中心，黑龙江哈尔滨 150090；3 哈尔滨工业大学市政环境工程学院，黑龙江哈尔滨 150090

出版日期:2010-12-05 发布日期:2010-12-05

Effects of organic carbon on simultaneous nitrification and denitrification in sequencing batch reactor

ZHANG Wanyou1，ZHANG Lanhe1，2，3，YANG Tao1，ZHANG Haifeng1

1 School of Chemical Engineering，Northeast Dianli University，Jilin 132012，Jilin，China；2 National Engineering Research Center of Urban Water Resources，Harbin 150090，Heilongjiang，China；3 School of Municipal and Environmental Engineering，Harbin Institute of Technology，Harbin 150090，Heilongjiang，China

Online:2010-12-05 Published:2010-12-05

摘要/Abstract

摘要：

采用序批式生物反应器（SBR）处理模拟废水，在pH值7.0～8.0、温度30～32 ℃、DO浓度0.5～1 mg/L、MLSS (4000±300) mg/L、NH₄⁺-N 35～45 mg/L条件下，考察乙酸钠、淀粉和葡萄糖作为碳源对SBR工艺同步硝化反硝化效果的影响。结果表明：投加葡萄糖时，COD去除率达到93.95%，出水硝酸盐浓度为7 mg/L；投加淀粉时，COD去除率仅70%，出水硝酸盐浓度为12 mg/L；采用乙酸钠作为碳源时，COD去除率为88.34%，出水硝酸盐浓度为4 mg/L。COD/NH₄⁺-N为12，分次投加乙酸钠时，氨氮去除率高于95%，总氮去除率高于90%，实现了同步硝化反硝化。在同步硝化反硝化SBR系统中，乙酸钠比淀粉和葡萄糖更适合作为碳源。

Abstract:

A sequencing batch reactor（SBR）was used to treat synthetic wastewater. Effects of organic carbons including sodium acetate，amylum and glucose on simultaneous nitrification and denitrification（SND）were investigated when pH，temperature，DO，MLSS and NH₄⁺-N were 7.0—8.0，30—32℃，0.5—1 mg/L，（4000±300）mg/L and 35—45 mg/L，respectively. Results indicated that removal efficiency of COD was 93.95%，and effluent NO₃^－-N was 7 mg/L when glucose was used as carbon source. Removal efficiency of COD was only 70% and effluent NO₃^－-N was 12 mg/L when amylum was used as carbon source. For sodium acetate，the COD removal efficiency was 88.34% and the effluent NO₃^－-N was 4 mg/L. When COD/NH₄⁺-N was 12 and sodium acetate was added intermittently，the removal efficiency of total nitrogen was higher than 90%，and simultaneous nitrification and denitrification were achieved. As a carbon source，sodium acetate was found more appropriate for SND in the SBR system than glucose and amylum.

张万友1，张兰河1，2，3，杨涛1，张海丰1. 不同有机碳源对SBR工艺同步硝化反硝化影响 [J]. 化工进展.

ZHANG Wanyou1，ZHANG Lanhe1，2，3，YANG Tao1，ZHANG Haifeng1. Effects of organic carbon on simultaneous nitrification and denitrification in sequencing batch reactor[J]. Chemical Industry and Engineering Progree.