新型微生物菌剂对垃圾渗滤液的除臭效果

利用从食材中筛选纯化的特定微生物制成新型复合菌剂,以不同浓度梯度处理垃圾渗滤液,测定其在自然条件下的嗅阈值,监测NH3和H2S即时挥发浓度的变化,评价菌剂的综合除臭效果,设计三因素三水平实验并采用响应面优化法对反应适宜的实验参数进行了优化。研究结果表明,新型复合菌剂的投加会使垃圾渗滤液嗅阈值明显下降;响应面优化模型分析表明,反应时间2.5 d时和0.5%的菌剂投加对抑制NH3的挥发效果最好,而反应时间2.5 d和0.2%的投入量对抑制H2S的挥发效果最好,氧气的供应情况对两者的挥发抑制效果影响不显著。

Effect of odor removal form refuse leachate treating by a new microbial agent

A complex microbial agent using materials from daily foods and drinks was synthesized. Garbage leachate samples were treated with different ratios of the microbial agent under different aerating situations. The removal rates of NH₃ and H₂S evaporating concentration of garbage leachate samples were tested and the comprehensive effects of controlling odors were assessed. Meanwhile, an orthogonal experiment of three factors and three levels was designed and the response surface methodology was applied to optimize the reaction parameters. Results showed that the new compound microbial agent could decrease odor; response surface optimization model analysis showed that the reaction time of 2.5 d and the inoculant dosing of 0.5% had the best effect on the inhibition of evaporating NH₃; the reaction time of 2.5 d and the inoculant dosing of 0.2% had the best effect on the inhibition of evaporating H₂S, supplying oxygen didn't has a significant effect on inhibiting odors.