摘要
采用生物过滤法,以鸡粪堆肥和PE混合物为填料,在高气速条件下间歇式处理高负荷H2S废气。空床停留时间为20、15、10、6.7和5 s时,入口浓度3 000 mg/m3下的平均去除率分别为100%、100%、96.5%、89.2%和90.5%。高气速EBRT为5 s时,高入口负荷2 147 g/(m3.h)时的去除负荷为2 023 g/(m3.h),去除率达94%。采用Michaelis-Ment-en模型进行生物降解宏观动力学研究,其中Ks为550 mg/m3,Vm为6.8×104g/(m3.d)。结果表明,在实验温度17～24℃,湿度30%～50%下,生物过滤法间歇式处理高气速高负荷H2S的去除性能好。
Biological removal of hydrogen sulfide with high load and high gas velocity in intermittent mode in a biofiher, packed with the mixtures of chicken manure and polyethylene （PE） was investigated. With H2S inlet concentration of 3 000 mg/m3 and empty bed residence time （EBRT） of 20, 15, 10, 6.7 and 5 s, the average removal efficiencies were 100% , 100% , 96.5% , 89.2% and 90.5% , respectively. At the high gas velocity corresponding to EBRT of 5 s, the elimination capacity was 2 023 g/（ m3 · h） with high inlet load of 2 147 g/（m3 · h） , and H2S removal efficiencies could reach 94%. The removal kinetics was researched based on the Michaelis-Menten model. Two kinetic parameters were KS with a value of 550 mg/m3 , and Vm with a value of 6.8 x 104 g/（ m3 · d）. The results showed that a good performance of the biofilter is obtained with high load and gas velocity under conditions of temperature from 17 to 24℃and the moisture content ranges from 30% to 50%.
出处
《环境工程学报》
CAS
CSCD
北大核心
2013年第3期1065-1071,共7页
Chinese Journal of Environmental Engineering
基金
辽宁省博士启动基金(20101045)
国家"863"高技术研究发展计划项目(2009AA062603)
辽宁大学"211工程"重点学科项目(HJ2110014)
辽宁省重点学科与辽宁省高校污染控制与环境修复重点实验室联合开放基金项目(HJ200901)
关键词
生物过滤硫化氢高气速高负荷恶臭
biofihration
hydrogen sulfide
high loading
high gas velocity
odor
