IC厌氧反应器处理造纸废水的颗粒污泥性质的研究  

Study on Characteristics of Granular Sludge during IC Anaerobic Reactor Treatment of Papermaking Wastewater

作　　者：赵登[1] 张安龙[1,2] 罗清[1,2] 冯天喜[1] 

机构地区：[1]陕西科技大学轻工与能源学院,陕西西安710021 [2]陕西省造纸技术及特种纸品开发重点实验室陕西科技大学,陕西西安710021

出　　处：《造纸科学与技术》2014年第2期92-95,共4页Paper Science & Technology

基　　金：十二五国家科技支撑计划项目(2011BAC11B04);陕西科技大学研究生创新基金资助项目

摘　　要：采用IC厌氧生物反应器处理造纸废水，研究了颗粒污泥的特性。结果表明：采用高负荷、高进水浓度的启动控制条件，经历22天的启动运行，IC反应器的容积负荷为10kgCOD／m^3·d，COD去除率达到70％的水平。容积负荷在15—20kgCOD／m^3·d，进水上流速度为3．5～4．8m／h时，COD的去除率仍可稳定在70％左右。随着运行时间的增加，IC反应器中颗粒污泥粒径变大，比重增加；厌氧颗粒污泥VSS／TSS的比值增至90％；比产甲烷活性增至450．8mLCH4／gVSS·d；沉降速度达到45．6—112．5m／h，平均沉降速度提高44．4％。The characteristics of granular sludge during IC anaerobic reactor treatment of papermaking wastewater were studied. The results show： the acclimation period lasted 22d with high strength influent and high organic loading rates. Granular sludge acclimation was achieved with COD removal efficiency of 70% and organic loading rates of 10kgCOD/m^3·d. The COD removal efficiency was stabilized at about 70% when the organic loading rates in- creased to 15-20kgCOD/m^3·d and water upstream velocity was 3.5 -4. 8m/h. With the increase in running time, the IC reactor granular sludge particle size became larger, the proportion increased; the ratio of anaerobic granular sludge VSS/TSS increased to 90% ; specific methanogenic activity increased to 450. 8mLCH4/gVSS · d; sedimentation rate reached 45.6 - 112.5m/h, the average sedimentation rate increased by 44.4%.

关 键 词：IC厌氧反应器 造纸废水 颗粒污泥 

分 类 号：X79[环境科学与工程—环境工程]