铅对厌氧消化的毒性机理  

TOXIC MECHANISM OF LEAD IN THE PROCESS OF ANAEROBIC DIGESTION

作　　者：韩剑宏[1] 余维佳 张连科[1] 韩静涛[3] 胡彩霞[1] 

机构地区：[1]内蒙古科技大学环境系,内蒙古包头014010 [2]包头市环保局危废项目办公室,内蒙古包头014030 [3]北京科技大学材料科学与工程学院,北京100083

出　　处：《水处理技术》2008年第1期47-49,共3页Technology of Water Treatment

基　　金：国家自然科学基金资助项目(50172009);内蒙古教育厅高校基金项目(NJ06143)

摘　　要：通过铅对颗粒污泥活性的抑制与恢复试验,分析了Pb2+的毒性作用。结果表明:不同Pb2+浓度所产生的抑制类型不同,颗粒污泥活性受抑制的程度随Pb2+浓度的增大而增加,产气恢复所经过的时间也大不相同,单位微生物接纳的Pb2+浓度越低,污泥越易恢复,时间越短,微生物对铅的毒性产生的适应能力越强。The toxic action of Pb^2＋ was analysed through the experiment of Pb^2＋ against granular sludge＇s inhibition and recovery. The results showed that different Pb^2＋ concentration generated different inhibition types; the inhibited degree of granular sludge increased with the increases of Pb^2＋ concentration; the time experienced for recovery generating gas was very different from each other. The lower the Pb^2＋ concentration received by unit microorganism, the easier the sludge recovered; the shorter the time, the stronger the adaptability of microorganism to Pb^2＋ toxicity

关 键 词：铅 颗粒污泥 毒性 

分 类 号：X703.1[环境科学与工程—环境工程]