摘要
以鸡粪堆肥和PE混合物为填料的生物过滤系统,在较低温度下进行生物去除H2S废气的性能研究.采用间歇式运行方式,当在较高气速条件下,即EBRT为39s、32s、24s和13s,入口浓度3000mg/m3时,去除率可分别达100%、100%、100%和65%.整个系统的入口负荷为812 g/(m3.h)时,去除负荷为528 g/(m3.h).且在较低的实验温度(9～16.5℃),入口浓度50～3000 mg/m3条件下,当EBRT为39s、32s、24s时,H2S的去除率为100%;当EBRT为13s时,去除率为62%～88%.结果表明,在较低温度下,高气速,高负荷条件下,间歇式生物过滤系统对H2S具有较高的去除性能.
Performance of biological removal of hydrogen sulfide waste gas in a biofilter packed with the mixtures of chicken manure and polyethylene（PE） was investigated under low temperature.The experiment was carried out in intermittent mode.The removal efficiencies were 100%,100%,100% and 65% with inlet concentration of 3000 mg/m3 and the EBRT of 38s,32s,23s and 13 s respectively.The elimination capacity reached to 812g/（m3.h） with inlet load of 528g/（m3.h）.Under the condition of low temperature from 9℃ to 16.5℃,H2S removal efficiency achieved 100% with inlet concentration of 50～3000mg/m3 and EBRT of 38s,32s and 23s.At EBRT of 13s,the removal efficiency could reach to 62%～88%.The results showed that a good performance of the biofilter was obtained with high inlet load and gas velocity under low temperature.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2012年第6期994-1000,共7页
China Environmental Science
基金
辽宁省博士启动基金(20101045)
国家"863"项目(2009AA062603)
辽宁大学"211工程"重点学科项目(HJ2110014)
辽宁省水环境生物监测与水生态安全重点实验室开放基金
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
恶臭
高负荷
biofiltratione
hydrogen sulfide
odor
high load
