摘要
以微氧状态下的IC反应器处理印染废水,废水以原水、絮凝剂的体积比为400∶1的比例经10%PAC和0.05%PAM混凝沉降后生化性能有所改善,BOD/COD为0.23;当进水负荷提高到4 655.1 mg.L-1,溶解氧控制在0.3 mg.L-1,HRT为5 h下运行7 d后,COD去除率可达到85.8%,此阶段微氧颗粒污泥已相对成熟,高进水负荷下在微氧范围内提高溶解氧质量浓度对颗粒污泥性能影响不大.
Dying-printing wastewater is treated under micro-aerobic condition in IC reactor.The experiment uses 10%PAC and 0.05% PAM,with the ratio of the raw water to flocculent 400∶1,after coagulating sedimentation,the biochemical performance of the wastewater is greatly improved,BOD/COD is about 0.23; when influent loads is improved to about 4 655.1 mg·L-1,dissolved oxygen concentration is 0.3 mg·L-1 and HRT is 5 h,the COD removal rate can reach 85.8%,micro-aerobic granular sludge has been relatively mature in this phase ,the increasing of dissolved oxygen concentration in the micro-scope does not affect the performance of micro-aerobic granular sludge under high influent loads.
出处
《河南农业大学学报》
CAS
CSCD
北大核心
2009年第5期572-575,共4页
Journal of Henan Agricultural University
基金
河南省科技攻关项目(072102130005)
关键词
微氧
颗粒污泥
印染废水
厌氧
脱色
micro-aerobic
granular sludge
dying-printing wastewater
anaerobic
decolorization
