中南大学学报（自然科学版）2011，Vol.42Issue(8)：2526-2530,5.
A/O+Anammox工艺处理低C/N城市污水的脱氮性能
Performance of nitrogen removal from municipal wastewater in A/O+Anammox system
摘要
Abstract
The performance of nitrogen removal from municipal wastewater was investigated in Anoxic/Oxic(A/O)+ Anammox (anoxic ammonium oxidation) system. The results show that total nitrogen (TN) can be effectively removed from municipal wastewater in A/O+Anammox system. The effluent TN and NH4+-N concentrations are 11.48 mg/L and 1.83 mg/L in average, respectively, when the influent TN concentration is 62.01 mg/L and the ratio of soluble chemical oxygen demand (SCOD) to TN is 2.42. The TN removal in A/O reactor contributes to 51.13% of TN removal in A/O+Anammox system, which is achieved through denitrification, simultaneous nitrification and denitrification and waste biomass discharge. The nitrite-to-ammonium ratio of the effluent from the A/O reactor can be controlled at about 1.0, which is beneficial to the Anammox reaction. 48.87% of TN removed from municipal wastewater is due to Anammox reaction in the Anammox reactor. So partial nitritation and anoxic ammonium oxidation is the key point for high TN removal efficiency of A/O+Anammox system in treating low C/N municipal wastewater.关键词
城市污水/自养脱氮/A/O反应器/Anammox反应器Key words
municipal wastewater/ autotrophic nitrogen removal/ A/O reactor/ Anammox reactor分类
资源环境引用本文复制引用
马斌,张树军,王俊敏,常江,孟春霖,王淑莹,彭永臻..A/O+Anammox工艺处理低C/N城市污水的脱氮性能[J].中南大学学报（自然科学版）,2011,42(8):2526-2530,5.基金项目
北京高校人才强教计划高层次人才资助项目(PHR20090502) （PHR20090502）
“十一五”国家重大科技专项课题(2008ZX07314-008) （2008ZX07314-008）
