杂色云芝生物滤塔净化甲苯废气效果

发布时间：2018-05-18 07:44

本文选题：净化 + 甲苯　；参考：《农业工程学报》2017年12期

【摘要】：为研究生物滤塔中优势菌种杂色云芝净化甲苯的性能。选择松树皮和火山石为生物滤塔填料,杂色云芝为功能微生物,甲苯为目标污染物,研究杂色云芝在生物滤塔中的生长情况及不同停留时间和进气载荷对去除率、去除负荷,系统压降变化的影响等。结果表明:采用强制循环挂膜法,在20 d内即可完成微生物挂膜,且在木质素氧化酶没有参与的条件下杂色云芝生物滤塔对甲苯表现出较好的去除效果。生物滤塔净化过程中气体停留时间(Gas rentention time,GRT)为148.3 s,进口负荷为7.28 g/(m~3·h)时,生物滤塔的最大去除能力为6.73 g/(m~3·h),该系统的最高去除率为92.4%;GRT为37.1s,进口负荷为58.25 g/(m~3·h)时,生物滤塔的最大去除能力为47.07 g/(m~3·h),去除率在80%以上。试验条件下,系统的压降均在500 Pa以下,说明系统的经济性良好。
[Abstract]:In order to study the purification of toluene in biofilter. Pine bark and volcanic stone were selected as biofilter fillers, discoloring Verticillium versicolor as functional microorganism and toluene as target pollutant. The growth and removal rate and load of different residence time and intake air load were studied in the biofiltration tower. The influence of system pressure drop change, etc. The results showed that the microbial membrane could be formed within 20 days by the forced circulation membrane method, and the biofilter of variegated lucidum could remove toluene better under the condition that lignin oxidase was not involved in the biofilter. The maximum removal capacity of the biofilter is 6.73 g/(m~3 / h when the gas residence time and inlet load are 148.3 s and 7.28 g/(m~3 / h respectively, the maximum removal rate of the system is 92.4GRT (37.1s), and the inlet load (58.25 g/(m~3 / h), the maximum removal capacity of the biofilter is 6.73 g/(m~3 / h, the maximum removal rate of the system is 37.1s, and the inlet load is 58.25 g/(m~3 / h. The maximum removal capacity of the biofilter was 47.07 g/(m~3 路h ~ (-1), and the removal rate was more than 80%. Under the test conditions, the pressure drop of the system is below 500 Pa, which shows that the system is economical.
【作者单位】：郑州大学化工与能源学院;
【基金】：国家自然科学基金-河南省人才培养联合资助项目(U1304216) 河南省重点科技攻关项目(142102310314)
【分类号】：X701

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