碳源类型及进水量分配对CMICAO工艺脱氮除磷的影响  

Effects of carbon sources and water distribution on nitrogen and phosphorus removal for CMICAO process

作　　者：雷晓芬[1,2] 朱光灿[1,2] 吕锡武[1,2] 许卓[1,3] 

机构地区：[1]东南大学能源与环境学院,南京210096 [2]东南大学无锡太湖水环境工程研究中心,无锡214135 [3]中蓝连海设计研究院,连云港222004

出　　处：《环境工程学报》2013年第8期2899-2903,共5页Chinese Journal of Environmental Engineering

基　　金：江苏省自然科学基金资助项目(BK2011142);国家"十二五"水专项课题(2012ZX07101005);江苏省科技支撑计划项目(BE2008667)

摘　　要：研究了分别以葡萄糖和乙酸钠为碳源时多点交替进水阶式A2/O(CMICAO)工艺氮磷的去除效果,以及在不同进水C/N比时各进水量分配对脱氮除磷效果的影响。结果表明,在相同的进水COD浓度下,乙酸钠比葡萄糖更适合作为碳源,更能提高脱氮除磷效率。以葡萄糖为碳源时,COD为200 mg/L、C/N比为5、缺氧池与厌氧池进水配比为1∶2时,出水COD、TN、氨氮和TP浓度分别为28.5、10.8、2.1和0.5 mg/L,均达到国家一级A排放标准。若采用葡萄糖作为碳源,投加量以使进水C/N比为5～7.5为宜,外加碳源时缺氧池与厌氧池进水分配比可统一采用1∶1。Effects of glucose and sodium acetate as carbon source on nitrogen and phosphorus removal efficiency were researched for CMICAO process.The influence of water distribution with different carbon/nitrogen（C/N） ratios on the system performances was investigated.Higher nitrogen and phosphorus removal efficiency was achieved when sodium acetate was as carbon source instead of glucose.When using glucose as carbon source and COD was 200 mg/L,C/N ratio was 5 and water distribution of anoxic tank and anaerobic tank was 1∶ 2,effluent concentrations of COD,TN,NH4＋-N and TP were 28.5,10.8,2.1 and 0.5 mg/L,respectively,meeting the Grade A Standard.When using glucose as carbon source,C/N ratio should be controlled between 5～7.5 and water distribution of anoxic tank and anaerobic tank can be kept at 1∶ 1.

关 键 词：CMICAO工艺 C N比 碳源类型 进水量分配 脱氮除磷 

分 类 号：X703.1[环境科学与工程—环境工程]