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生物滴滤塔脱H_2S过程中的生物膜特性

Characteristics of biofilm in H_2S removing process by bio-trickling filter
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摘要 生物滴滤塔处理含H2S废气具有良好的前景。微生物是降解H2S的载体,生物膜特性是H2S的脱除效率的影响因子。本文选取无色硫细菌(CSB)作为研究对象,研究了不同水力停留时间(HRT)条件下CSB在一个生长周期内悬浮微生物与附着微生物(生物膜)的变化趋势、SO2-4生成速率与悬浮微生物生长的关系,生物膜活性与生物膜的平均厚度。HRT为60 s时,体系中附着微生物浓度为附着微生物与悬浮微生物的比例最大,生物膜达到最佳厚度282μm,生物膜活性最高为150.2 mg/(g·6h)。SO2-4生成速率可以作为微生物生长是否稳定的标准。 The treatment of waste gas containing H2S by bio-trickling filter has good prospects. Microbial carrier plays a major role in H2S removing process, and the biofilm characteristics affect the removal efficiency. Colorless sulfur bacteria (CSB) was selected as the research object, investigating how hydraulic retention time (HRT) affects the suspended biomass and attaches biomass (biofilm) and what the relationship between SO24- formation rate and suspended biomass growth is, as well as biofilm activity and average thickness. When HRT is 60 s, the
作者 胡静泊
出处 《化学工程》 CAS CSCD 北大核心 2013年第11期60-63,共4页 Chemical Engineering(China)
关键词 生物滴滤塔 H2S脱除 无色硫细菌 生物膜 bio-trickling film H2 S removing colorless sulfur bacteria biofilm
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参考文献14

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