A PERFORMANCE STUDY OF SIMULTANEOUS MICROBIAL REMOVAL OF NO AND SO2 IN A BIOTRICKLING-FILTER UNDER ANAEROBIC CONDITION

被引：8

作者：

Han, Yaqiong ^{[1
]}

Zhang, Weijiang ^{[1
]}

Xu, Jiao ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

来源：

BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING | 2011年 / 28卷 / 02期

基金：

高等学校博士学科点专项科研基金;

关键词：

Simultaneous removal of NO and SO2; Coculture; Anaerobic denitrifying bacteria; Sulfate reducing bacteria; Biotrickling-filter; SULFATE-REDUCING BACTERIA; SULFUR-DIOXIDE; ACTIVATED CARBON; NITRIC-OXIDE; REDUCTION;

D O I：

10.1590/S0104-66322011000200003

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The behaviors of simultaneous removal of NO and SO2 using the coculture of anaerobic denitrifying bacteria and sulfate reducing bacteria was investigated in a bench-scale biotrickling-filter. When the combined NO/SO2 removal biotrickling-filter was operated at an empty bed residence time of 76 s with NO and SO2 feed concentrations of 2 and 2 g/m(3), respectively, the SO2 removal efficiency was always above 95%, while NO removal exhibited an evident periodicity of 5-6 days for the initial 60 days after the attachment phase. A steady-state NO-removal efficiency of around 90% was obtained after 130 days of continuous operation. Experimental results indicated that the coculture in the combined NO/SO2 removal biotrickling-filter showed a higher resistance to shock NO-loadings and a better tolerance to starvation than the single denitrifying bacteria in the NO removal biotrickling-filter.

引用

页码：189 / 196

页数：8

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