复合生物滤池处理垃圾恶臭的研究

Study on deodorization of municipal solid wastes by a composite biofilter

笔者采用自主开发的复合生物滤池专利技术处理垃圾恶臭气体．实验表明，垃圾恶臭气体流量为0．7～2．2m^3／h，H2S、NH3、甲苯和甲硫醇浓度分别为0．01～0．09mg／m^3、1．50～3．50mg／m^3、0．20～2．55mg／m^3和0．20～1．90mg／m^3时，它们的总去除率分别达到92．9％、93．7％、86．0％和90．0％．当垃圾臭气浓度增大时，其多种成分可以相互影响而改变其水溶性，即气体间相互起着助溶剂的作用．复合生物滤池用于处理实际垃圾恶臭气体（处理量为5000m^3／h），出气达到《恶臭污染物排放标准（GB14554—93）》中的一级排放标准，与水滤＋活性炭吸附塔相比，具有更好的处理效果.

A novel composite biofilter patent technique has been used to treat odors produced by municipal solid wastes in this paper. Results show that the total removal efficiency of hydrogen sulfide, ammonia, toluene and methanethiol were 92.9%, 93.7%, 86.0% and 90.0% when the flow rate was 0. 7～ 2.2m^3/h and their concentration range were 0. 01～0.09mg/m^3 , 1.5～3.5mg/m^3 , 0. 2～2.55mg/m^3 and 0. 20～1.90mg/m^3 , respectively. The interplay which influences between one odor and others can be observed when the odors concentration increase to some extent, and it plays a very important role of the cosolvent. The combined-bioreactor could reach to the primary discharge standard when the flow was 5000m^3/h, indicating that it has a better removal efficiency than the water filtration plus bio-adsorption of activated carbon.