加压溶气生化气浮法降解生活污水中有机物  

Degradation of organic compounds in domestic sewage by pressured aeration-dissolved air flotation reactor

作　　者：张其殿[1] 刘淑杰[2] 芦嵩林[2] 陈福明[2] 杨春平[1] 

机构地区：[1]浙江工商大学环境科学与工程学院,浙江省固体废物处理与资源化重点实验室,杭州310018 [2]深圳清华大学研究院,深圳市工业应用分离技术重点实验室,深圳市环境微生物资源开发与应用工程实验室,深圳518057

出　　处：《环境工程学报》2014年第3期1051-1056,共6页Chinese Journal of Environmental Engineering

基　　金：深圳市重点实验室(三大产业)资助项目(CXB201104-250056A)

摘　　要：将加压曝气生物氧化技术与加压溶气气浮工艺相结合,开发了一种快速处理生活污水的加压溶气生化气浮反应器(PA-DAF),并考察了反应器的泥水分离效果及压力、水力停留时间(HRT)、气水比对其去除生活污水内有机物的影响。实验结果表明,在压力0.4 MPa,HRT 1.5 h(Q=1.0 L/min),气水比3∶1的条件下,生活污水COD去除率可稳定在90%左右。同时发现,NH3-N去除效果不理想,有待后续研究进行优化。A pressured aeration-dissolved air flotation reactor（ PA-DAF） was developed by combining the pressurized aeration bio-oxidation technology and the dissolved air flotation process. The sludge-water separation and the effects of pressure,hydraulic retention time（ HRT） and gas-water ratio on the removal efficiency of organic compounds were investigated. The results showed that the COD removal efficiency was up to 90% when the pressure,HRT and gas-water ratio were maintained at 0. 4 MPa,1. 5 h and 3∶ 1,respectively. Nevertheless,the removal efficiency of NH3-N needs to be optimized in the further research.

关 键 词：加压溶气生化气浮反应器 生活污水 有机物 

分 类 号：X703.1[环境科学与工程—环境工程]