Simultaneous Removal of SO2 and NO with activated carbon from sewage sludge modified by chitosan

被引:5
|
作者
Fan, Xiaodan [1 ]
Zhang, Xiangkai [1 ]
机构
[1] Tianjin Inst Urban Construct, Environm & Municipal Engn Sch, Tianjin 300384, Peoples R China
关键词
Simultaneous; removal; SO2; NO; Sewage sludge; Chitosan; REDUCTION; ADSORPTION; CATALYSTS; SUPPORT;
D O I
10.4028/www.scientific.net/AMM.253-255.960
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The simultaneous removal of SO2 and NO was investigated with the activated carbon from sewage sludge (referred as ACS) modified by chitosan (referred as CS). The effects of CS loading and operating conditions on the simultaneous removal of SO2 and NO were analyzed. The results indicate that compared with the ACS, impregnating CS results in significant increase in SO2 or NO removal. Relative humidity enhances SO2 adsorption capacities, but not for NO. The SO2 adsorption capacities of the CS/ACS show no obvious decrease at small amount of NO in the feed. However, higher amounts of NO reduce the SO2 adsorption capacities. The opposite phenomenon appears for NO when a small amount of SO2. So a competitive sorption consists between NO and SO2. Simultaneous adsorptions for NO and SO2 is due to more active sites from CS.
引用
收藏
页码:960 / 964
页数:5
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