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Simultaneous elimination of H2S and NH3 in a biotrickling filter packed with polyhedral spheres and best efficiency in compost deodorization
Journal of Cleaner Production ( IF 9.7 ) Pub Date : 2020-10-17 , DOI: 10.1016/j.jclepro.2020.124708
Chenchen Huan , Junnan Fang , Xinyu Tong , Yong Zeng , Yang Liu , Xinru Jiang , Gaosheng Ji , Lishan Xu , Qingyang Lyu , Zhiying Yan

With polyhedral spheres as the packing, a semi-pilot biological trickling filter reactor (BTF) inoculated by domesticated activated sludge is used to remove Hydrogen Sulphide (H2S) and Ammonia (NH3). The removal rate of H2S and NH3 by BTF was as high as 98.25% and 88.55%, and the maximum removal load was 84.57 g H2S m-3h-1 and 38.77 g NH3 m-3h-1 during the 61-day process. The inlet gas concentration ranges from 0 to 500 ppm, and the empty bed residence time (EBRT) is 31.8 s. When the EBRT reduced from 31.8s to 25.4s, the removal rate of H2S and NH3 decreased significantly, which was 67.21% and 81.36%, respectively. The results showed that EBRT significantly affected the removal rate of H2S and NH3. Microbial analysis indicated that Dokdonella, Ferruginibacter, Nitrosomonas, and Thiobacillus had high abundance at the genus level, showing that these genera play an important role in the degradation of H2S and NH3. When the optimized parameters applied to the on-site biogas residue compost, the removal rate of H2S and NH3 by BTF can reach 91.34%, which provides a feasible process for the deodorization project with compost.



中文翻译:

同时去除装有多面体球的生物滴滤池中的H 2 S和NH 3,并实现堆肥除臭的最佳效率

以多面体球为填料,使用半驯化的生物滴滤池反应器(BTF)接种驯化的活性污泥,以去除硫化氢(H 2 S)和氨(NH 3)。BTF对H 2 S和NH 3的去除率高达98.25%和88.55%,最大去除负荷为84.57 g H 2 S m -3 h -1和38.77 g NH 3 m -3 h -1在61天的过程中。入口气体浓度范围为0至500 ppm,空床停留时间(EBRT)为31.8 s。当EBRT从31.8s降至25.4s时,H 2 S和NH的去除率3显着下降,分别为67.21%和81.36%。结果表明,EBRT显着影响H 2 S和NH 3的去除率。微生物分析表明,十二指肠,费氏杆菌,亚硝化单胞菌硫杆菌属在属水平上具有很高的丰度,表明这些属在H 2 S和NH 3的降解中起重要作用。当优化参数应用于现场沼气渣堆肥时,BTF对H 2 S和NH 3的去除率可达到91.34%,为堆肥除臭工程提供了可行的过程。

更新日期:2020-10-17
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