螺旋流气提式内循环反应器的COD、SS去除效能  

Research on COD、SS Removal of the Spiral Flow Internal-loop Air-lift Bioreactor

作　　者：孙志华[1,2] 刘志辉[2,3] 何秉宇[2,3] 闪旭[2] 陈向云[2] 

机构地区：[1]石河子大学水利建筑工程学院,石河子832003 [2]新疆大学资源与环境科学学院,乌鲁木齐830046 [3]新疆大学绿洲生态教育部重点实验室,乌鲁木齐830046

出　　处：《石河子大学学报（自然科学版）》2010年第2期221-226,共6页Journal of Shihezi University(Natural Science)

基　　金：国家大学生创新性实验计划项目(081075508);新疆维吾尔自治区重点实验室开放课题(040079)

摘　　要：为提高气提式内循环反应器三相分离的效率,在反应器中加入螺旋式三相分离器对其进行了改造,并通过试验对其效能进行分析。试验结果表明,改造后的螺旋流气提式内循环反应器对有机物质仍具有较高的去除能力,同时系统出水SS得到了较好的降低。试验从填料体积、水力停留时间、曝气量三个因素分别考查了系统的COD、SS去除效果,系统运行稳定后COD的平均去除率为80%以上,出水COD基本维持在50～60mg/L,系统出水SS值低于30mg/L,从而证实了对气提式内循环反应改造的最初设想。The spiral flow three-phase segregator was designed and applied to internal-loop air-lift bioreactor,and it was proved that the spiral flow internal-loop air-lift bioreactor holds strong capability of removal of COD by test. And the SS of finished water of air-lift bioreaetor was reduced effectively. Analyzed were the effect of the removal of COD and SS under different filler volumes,different HRTs and different aeration volumes. The average removal of COD was over 80 %,and the water quality was this：COD= 50-60mg/ L,SS≤30mg/L. The result shows that the improved internal-loop air-lift bioreaetor is good.

关 键 词：螺旋式三相分离器 气提式内循环反应器 生活污水 

分 类 号：X799.3[环境科学与工程—环境工程]