新型污泥陶粒-曝气生物滤池对喷水织造废水的处理研究  

Study on treatment of water-jet weaving wastewater by new type sewage sludge ceramsite for biological aerated filter

作　　者：周高燕 章静 战晓慧 王河 史惠祥[1] ZHOU Gaoyan;ZHANG Jing;ZHAN Xiaohui;WANG He;SHI Huixiang(Department of Environmental and Resource,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学环境与资源学院,浙江杭州310000

出　　处：《浙江大学学报（理学版）》2021年第2期231-240,共10页Journal of Zhejiang University（Science Edition）

基　　金：浙江省科技计划项目(2019C03110-003);国家科技重大专项(2018ZX07208-009)。

摘　　要：以污泥∶底泥∶粉煤灰=5∶3∶2、烧制温度1130℃、保温时间20 min制备污泥陶粒(sewage sludge ceramsite,SSC),SSC粗糙多孔,内部孔隙率和孔容分别为36.5%和0.2432 cm^(3)·g^(-1),适合微生物的吸附与固定。基于SSC构建了曝气生物滤池(SSC-BAF),并与基于市售陶粒(commerically ceramsite,CTC)构建的曝气生物滤池(CTC-BAF)进行了对比,研究了在不同气水比和水力停留时间下SSC-BAF反应器对喷水织造废水的处理情况。根据COD、石油类、浊度的去除效果,确定了SSC-BAF反应器的最佳气水比为5∶1,水力停留时间为6 h,此时对COD、石油类、浊度的去除率分别为86.87%,89.91%,96.70%,优于CTC-BAF对COD、石油类、浊度的去除率85.28%,86.76%,96.17%。Sewage sludge ceramsite(SSC)is prepared from sludge,bottom mud,and fly ash at a ratio of 5∶3∶2,with firing temperature of 1130℃,and holding time of 20 minutes.The SSC is rough and porous,and the internal porosity and pore volume are 36.5%and 0.2432 cm^(3)·g^(-1),respectively,which is suitable for adsorption and fixation of microorganisms.SSC and commercially available ceramsite(CTC)are used to build two biological aerated filters called SSC-BAF and CTC-BAF.In the study of the performance of the two BAF systems for the treatment of water-jet weaving wastewater,the optimal air-water ratio of the BAF system is 5∶1,and the hydranlic retention time(HRT)is6 h.In this case,the removal rates of SSC-BAF for COD,petroleum,and turbidity are 86.87%,89.91%,and 96.70%,which are better than the removal rates 85.28%,86.76%,and 96.17%of CTC-BAF.

关 键 词：曝气生物滤池 喷水织机 污泥陶粒 

分 类 号：X703[环境科学与工程—环境工程]