脱氮硫杆菌接种生物滴滤塔净化H_2S气体研究  

STUDY ON PURIFICATION OF HYDROGEN SULFIDE ODOR BY BIO-TRICKLING FILTER INOCULATED WITH DENITRIFYING THIOBACILLUS

作　　者：张承中[1] 邢怡[1] 郭明菲[1] 任静[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《环境工程》2008年第2期33-35,共3页Environmental Engineering

基　　金：国家自然科学基金项目(50174042)

摘　　要：从土壤中分离筛选一株化能自养型的脱氮硫杆菌(Thiobacillus denitrificans),接种到生物滴滤塔上脱除H2S气体。结果表明:入口浓度为1453mg/m3,停留时间78s,H2S脱除率为92%,营养液最佳pH为6.0。该菌可承受较高负荷,最大可达134g/(m3.h),具有良好的缓冲能力和脱臭效果,为工业化应用中处理高浓度的H2S气体提供了依据。A strain of denitrifying Thiobacillus was isolated from soil,which is inoculated in the bio-trickling filter to purify hydrogen sulfide.Removal efficiency can reach above 92% under following conditions:the concentration of inlet 1 453 mg/m3,HRT 78 s,pH 6.0,The strain bacterium can endure the high pollution load and possess the larger buffer capacity and removing efficiency of hydrogen sulfide,which offered a basis for treating H_2S in the industrial application.

关 键 词：硫化氢 脱氮硫杆菌 生物滴滤塔 

分 类 号：X172[环境科学与工程—环境科学]