强化生物滴滤技术深度治理大型城镇污水处理厂恶臭气体  

Strengthening Biotrickling Technology for Deep Treatment of Odor Gas in Large Urban Sewage Treatment Plants

作　　者：鞠庆玲 刘启凯 冯润 JU Qingling;LIU Qikai;FENG Run(Nishihara Environment Protection(Shanghai)Co.,Ltd.,Shanghai 201204,China)

机构地区：[1]西原环保(上海)股份有限公司,上海201204

出　　处：《北京工业大学学报》2023年第12期1368-1374,共7页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(52170114)。

摘　　要：为了解决城镇污水处理厂恶臭污染日益严峻,以及常规除臭技术难以深度去除产生的恶臭气体的问题,以市政污水处理厂调配水井收集的H_(2)S为研究对象,研究了一种添加微生物活性促进剂的一体化生物滴滤塔除臭技术,探究其工艺影响因素,并在大量研究数据的基础上,提出相关设计参数指导建议。结果表明:1)当进口臭气风量为3000 m^(3)/h,进口处H_(2)S的质量浓度为152~304 mg/m^(3)时,空床停留时间仅为8.6 s,强化生物滴滤塔的H_(2)S去除率可达99.9%,脱硫负荷(以H_(2)S计)可达62 g/(m^(3)·h)以上;2)强化生物滴滤塔添加生物促进剂可以缩短微生物驯化周期约60%,并在极低的pH条件(pH≤1.5)下长期稳定运行;3)以城镇污水处理厂臭气进口处H_(2)S的质量浓度为180 mg/m^(3)为例,设计空床停留时间(empty bed residence time,EBRT)为17 s,强化生物滴滤塔H_(2)S去除率可达99.9%,设备整体占地面积及体积均可减少30%~50%,为生物滴滤技术的实际应用提供参考价值。To solve the problem that the odor pollution of urban sewage treatment plants is becoming more and more serious and the conventional deodorization technology is difficult to remove the malodorous gas,an integrated biotrickling filter with a microbial activity promoter was used to treat H_(2)S from a municipal wastewater treatment plant.The treatment performance was studied,and the influencing factors of the process were also investigated.Based on a large amount of research data,relevant design parameters guidance suggestions were put forward.Results show that when the imported odor air volume is 3000 m^(3)/h and the imported H_(2)S concentration is in the range of 152-304 mg/m^(3),the empty bed residence time(EBRT)is only 8.6 s,the H_(2)S removal rate of the enhanced biotrickling filter tower can reach 99.9%,and the deodorizationload(as H_(2)S)can reach up to 62 g/(m^(3)·h)and above.The enhanced biotrickling filter with biological promoters can shorten the acclimation period of microorganisms by about 60%and operate stably for a long time at very low pH(pH≤1.5).Taking an urban sewage treatment plant with an imported H_(2)S concentration of 180 mg/m^(3) as an example,the H_(2)S removal rate of the enhanced biotrickling filter can reach 99.9%when the EBRT is designed only for 17 s.The overall area and volume of the equipment can be also reduced by 30%-50%,which provides a reference value for the practical application of biotrickling technology.

关 键 词：生物滴滤塔 生物除臭 空床停留时间 微生物活性促进剂 城镇污水处理厂 硫化氢 

分 类 号：X512[环境科学与工程—环境工程]