生活垃圾渗滤液对厌氧颗粒污泥产甲烷活性的影响研究  

Influence of landfill leachate on anaerobic granular sludge methane-producing activity

作　　者：冼萍[1] 李英花[1] 邓超冰 王孝英[1] 温中海[1] 

机构地区：[1]广西大学环境学院,南宁530004 [2]广西壮族自治区环境监测中心站,南宁530022

出　　处：《环境工程学报》2009年第10期1767-1772,共6页Chinese Journal of Environmental Engineering

基　　金：广西科学研究与技术开发计划项目(桂科攻0816002-5)

摘　　要：通过厌氧毒性实验、恢复实验和特征毒性模拟实验,研究了生活垃圾渗滤液对厌氧颗粒污泥微生物产甲烷活性的影响。结果表明,1000 mg/L氨氮浓度下产甲烷活性均大于85%,说明相应氨氮浓度范围,垃圾渗滤液基质对厌氧颗粒污泥的微生物没有明显抑制作用。恢复实验后活性得到完全恢复,属代谢毒性。模拟废水氨氮浓度大于1000 mg/L浓度时,开始出现抑制;氨氮浓度大于3000 mg/L时,有明显抑制,产甲烷活性下降32.1%;相同氨氮浓度下,渗滤液最大活性区间滞后于模拟废水,产甲烷活性也小于模拟废水,存在除氨氮以外的毒性物质的影响。By anaerobic toxicity, recovery and characteristic toxicity experiments, the influence of landfill leachate on aerobic granular sludge microorganisms＇ methanogenic activity was researched. The experiments show that methanogenic activity was above 85% when ammonia nitrogen＇ s concentration was 1 000 mg/L. This result indicates that there was no significant inhibited effect for landfill leachate stroma to aerobic granular sludge microorganisms. Activity was restored in the recovery experiment, which belongs to metabolic toxicity. Inhibition appears when simulated wastewater ammonia nitrogen＇ s concentration was above 1 000 mg/L. Inhibition became obvious when simulated wastewater ammonia nitrogen＇ s concentration was 3 000 mg/L. methanogenic activity decreased by 32. 1%. Under the same concentration of ammonia nitrogen, the landfill leachate＇ s maximum activity interval lags behind simulated wastewater; the landfill leachate＇ s methanogenic activity was weaker than simulated wastewater, which exists toxic substances influence besides ammonia nitrogen.

关 键 词：生活垃圾渗滤液 模拟氨氮废水 厌氧颗粒污泥 产甲烷活性 

分 类 号：X703[环境科学与工程—环境工程]