柠檬酸酸洗废液处理中活性污泥的培养与驯化  

Cultivation and Domestication of Activated Sludge in the Treatment of Citric Acid Wastewater

作　　者：孙咏红[1] 单学敏[1] 田妍[1] 张翀[2] 

机构地区：[1]大连交通大学环境科学与工程学院,辽宁大连116028 [2]北京理工大学生命科学与技术学院,北京100081

出　　处：《大连铁道学院学报》2005年第1期89-91,95,共4页Journal of Dalian Railway Institute

摘　　要：针对柠檬酸酸洗废液的处理,取大连开发区污水处理厂经脱水干化的活性污泥作种泥,将生活污水与柠檬酸废水以一定比例混合,进行污泥的培养与驯化.驯化中不断增加柠檬酸废水的比例,使CODcr从330mg/L逐渐上升到1982mg/L,在水温:20℃～25℃,溶解氧:4.0～5.0mg/L,pH值:6.5～8.0,SVI:30%左右,MLSS:2～4g/L的条件下,经过7d的培养驯化,柠檬酸废液CODcr的去除率达到90%以上,15d,生物反应器中微生物繁殖良好,形成稳定的活性菌胶团絮体.结果表明:试验控制条件适宜,驯化好的活性污泥对柠檬酸酸洗废液中的有机物去除效果稳定,达到了预期的目的.The activated sludge which have been dehydrated and condensed in the wastewater treatment factory in Dalian developing region is used as the domesticated sludge.Citric acid washing wastewater is used to cultivate and domesticate the activated sludge.Under the conditions of 20℃～25℃,DO=4.0～5.0mg/L,pH=6.5～8.0,SVI=30%,MLSS=2～4g/L,the activated sludge is almost formed during the cultivation period .For the wastewater treatment of CODcr 330～1982mg/L,over 82% of removal efficiency is reached.

关 键 词：活性污泥 废液处理 柠檬酸废水 CODcr 酸洗废液 污水处理厂 大连开发区 柠檬酸废液 微生物繁殖 生物反应器 比例混合 生活污水 MLSS 培养驯化 控制条件 去除效果 20℃ 溶解氧 pH值 SVI 去除率 菌胶团 有机物 干化 

分 类 号：X703[环境科学与工程—环境工程] X781.03