生物滴滤塔处理模拟甲硫醚废气  

Treatment of simulated waste gas containing dimethyl sulphide in a biotrickling filter

作　　者：何硕[1] 周楠楠[1] 黄琼[2] 陈英文[1,2] 沈树宝[1] 

机构地区：[1]南京工业大学生物与制药工程学院,江苏南京210000 [2]南京信息工程大学环境科学与工程学院江苏省环境净化材料工程技术研究中心,江苏南京210044

出　　处：《化工环保》2017年第2期218-222,共5页Environmental Protection of Chemical Industry

基　　金：国家自然科学基金项目(51172107);江苏省高校自然科学研究项目(14KJB430014);江苏省环境净化材料工程技术研究中心(ECM)开放课题项目(KFK1503);江苏省科技厅项目(BE2016769);青年科学基金项目(51608261)

摘　　要：在常温条件下,采用生物滴滤塔处理模拟甲硫醚废气,考察了气体空床停留时间(EBRT)、容积负荷、喷淋密度及营养液pH对生物滴滤塔性能的影响。实验结果表明:当EBRT为90 s、进气甲硫醚质量浓度为150 mg/m^3、喷淋密度为0.65 m^3/(m^2·h),营养液pH为6.8时,甲硫醚去除率为90%;容积负荷高于15 g/(m^3·h)时,对生物滴滤塔的性能产生抑制作用;EBRT为90 s及60 s时,最佳喷淋密度分别为0.56~0.65 m^3/(m^2·h)及0.65~0.75 m^3/(m^2·h);降解甲硫醚的微生物对pH的变化较敏感,最适营养液pH为6~7。The simulated waste gas containing dimethyl sulphide was treated in a biotrickling filter at room temperature. The factors affecting the performance of the biotrickling filter were studied. The experimental results showed that： Under the conditions of EBRT 90 s, mass concentration of inlet dimethyl sulfide 150 mg/m3, spray density 0.65 m3/ （m2·h） and nutrient solution pH 6.8, the removal rate of dimethyl sulphide was 90%; When the volulne loading was higher than 15 g/（m3·h）, the performance of the biotrickling filter was inhibited; When EBRTs was 90 s and 60 s, the optimum spray density was in the range of 0.56-0.65 m3/（m2 ·h）and 0.65-0.75 m3/（m2·h）, respectively; The dimethyl sulphide biodegrading microorgansims were sensitive to the change ofpH, and the optimum nutrient solution pH was 6-7.

关 键 词：生物滴滤塔 甲硫醚 废气处理 空床停留时间 容积负荷 喷淋密度 营养液pH 

分 类 号：X701[环境科学与工程—环境工程]