环流反应器生化处理皂化废水研究  

Treatment of saponification wastewater in an airlift bioreactor

作　　者：陈筛林[1] 范轶[1] 杨海光[1] 丁富新[1] 

机构地区：[1]清华大学化学工程系,北京100084

出　　处：《现代化工》2004年第8期30-32,共3页Modern Chemical Industry

基　　金：国家"十五"科技攻关项目(zz01-10-03-12)

摘　　要：以17L的环流反应器为曝气设备,研究了皂化废水的生物降解过程。环流反应器可高效处理皂化废水,水力停留时间仅6h,皂化废水的生物降解过程满足一级宏观动力学,最佳活性污泥质量浓度范围为5～9g/L;活性污泥系统连续运行稳定,出水化学需氧量稳定在100mg/L左右。扫描电镜显示驯化污泥相较接种污泥有较大变化,微生物的活性提高,种类更为丰富。A lab-scale airlift bioreactor was used to biologically treat saponification wastewater. Experimental results show that the bioreactor can treat saponification wastewater well with high efficiency in terms of short hydraulic retention time of 6 h. The biodegradation process followed one-order reaction kinetics, optimal mass concentration of mixed liquor suspended solids was 5-9 g/L, and the system ran well continuously with effluent chemical oxygen demand about 100 mg/L. Scanning electron microscopy reveals vivid differences between seeded sludge and acclimated sludge, and the latter has more microorganisms with high activity.

关 键 词：环流反应器 皂化废水 活性污泥 

分 类 号：X703[环境科学与工程—环境工程]