Simulation Experiment Study on Biological filter Removal Ammonia Odor During Composting

[摘要] Biofilter in biological deodorization can effectively remove the odor generated by composting, but different filler of the biological filter on the treatment effect of odor is different. In the study, the gas produced by the compost was respectively passed through the biofilter with zeolite or a mixture of zeolite and composting solids, and the change trend of ammonia removal rate is basically the same. When the ammonia concentration reaches 4000 mg/m3, after treatment with A, B biofilter, ammonia removal rate is less than 90%, can not meet the standard; when the ammonia concentration between 200∼500 mg/m3, after treatment with A, B biofilter, removal rate reaches 98%, which can reach the three-level factory standard value(GB 14554-93); when the ammonia concentration between 100∼200 mg/m3, removal rate can up to 99%, which can reach the secondary standard; when the ammonia concentration is less than 100 mg/m3, removal rate can up to 100%, which can reach the level one.

[发布机构] Art and Design College, YanShan University, Qinhuangdao; 066000, China^1

[效力级别] 经济学

[关键词] After-treatment;Ammonia concentrations;Ammonia removal;Biological deodorizations;Biological filters;Experiment study;Secondary standard;Treatment effects