化工环保2026，Vol.46Issue(1)：72-77,6.DOI:10.3969/j.issn.1006-1878.2026.01.010
生物滤塔对甲苯的去除及其生物量控制方法
Toluene removal and its biomass control method in a biofilter
摘要
Abstract
A biofilter(BF)was employed to treat toluene,and its treatment efficiency was investigated.The washing effects of NaOH solution and Tween-20 solution on the packed bed after BF clogging were compared,and the washing protocol for the packed bed was optimized.The experimental results show that when the BF is initiated under a toluene mass concentration of 1 000 mg/m3,the maximum toluene removal rate reaches 99%,with an average removal rate exceeding 90%.When the toluene mass concentration is increased to 3 000-4 000 mg/m3,prolonged operation leads to clogging of the BF,with the toluene removal rate stabilizing at around 50%.After washing with NaOH solution(0.4%,w),the microbial community structure remains largely unchanged.In contrast,washing with Tween-20 solution(10.0%,w)results in a simplified microbial community structure.After two rounds of NaOH solution washing combined with mechanical stirring,the biomass in the BF decreases to 150 kg/m3,and the porosity of the packed bed increases to approximately 35%,alleviating clogging and facilitating long-term stable operation of the system.关键词
生物量控制/堵塞/化学洗涤/机械搅拌/微生物群落结构Key words
biomass control/clogging/chemical washing/mechanical agitation/microbial community structure分类
资源环境引用本文复制引用
史宇情,白紫荷,王宁,韩梦非,王欣..生物滤塔对甲苯的去除及其生物量控制方法[J].化工环保,2026,46(1):72-77,6.基金项目
国家青年科学基金项目(A类)(C2024208030). （A类）
