| 固定化微生物处理含H2S气体的试验研究 |
| 摘要点击 1742 全文点击 2562 投稿时间：1998-04-24 |
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| 中文关键词 固定化微生物 恶臭处理 H2S去除 生物脱臭 |
| 英文关键词 immobilized microorganisms odor gas treatment hydrogen sulfide removal microbiological deodorization |
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| 中文摘要 |
| 研究海藻酸钠包理固定化微生物颗粒填充床去除气相H2S的过程,活性微生物为经S2-加富驯化的污水厂污泥。填充滴滤塔运行实验表明,除H2S外适宜的pH值和喷淋率分别为1.8-4.0和>0.17m3/(m3·d);最大有效(去除率>96%)H2S体积负荷为6000-6500g/(m3·d);超过此负荷运行造成的气流阻力上升和去除率下降可通过反冲洗与低负荷(<2000g/(m3·d),4d)运行恢复;停气12h再启动去除率恢复时间<26h. |
| 英文摘要 |
| The paper describes a removal process for hydrogen sulfide in a packed bed of the immobilized microorganism beads.The activated microorganisms,come from the S2- enrichment culture and training sewage sludge,are immobilized in calcium alginate beads.The experimental results in the packed trickling column show that the appropriate pH value and spray ratio of H2S removal are between 1.8 and 4.0 and more than 0.17m3/(m3·d) respectively.The maximum effective volume load of H2S (removal efficiency>96%) is in the range from 6000 to 6500 g/(m3·d).When the running load is higher than the maximum effective volume load,the gas flow resistance through the packed trickling column will increase and the H2S removal efficiency will decrease.The above mentioned malfunction running condition can be recovered by a back washing and low running load(<2000g/(m3·d)) process,the recovery period is 4 days.After stopping gas flow containing hydrogen sulfide for 12 hours and start up again,the period of the system removal efficiency recovery is less than 26 hours. |
