分段进水多级AO工艺设计方法探讨及优化  

Optimization and discussion on the design method of step-feed multi-level AO process

作　　者：权国卿 王舜和 宋杰 QUAN Guoqing;WANG Shunhe;SONG Jie(Southwest Mucipal Engineering Design&Reasearch Institute of China,Chengdu 610036,China;Infore Environment Technology Group Co.,Ltd.,Foshan 528311,China)

机构地区：[1]中国市政工程西南设计研究总院有限公司,成都610036 [2]盈峰环境科技集团股份有限公司,佛山528311

出　　处：《给水排水》2023年第9期43-49,共7页Water & Wastewater Engineering

摘　　要：多级AO生物处理系统的总氮去除率由污泥回流比R,总分段数n及流量分配系数比q三者决定。根据公式可知,分段数n及污泥回流比R越大,流量分配系数比q越小,总氮去除率越高。污泥回流比R主要控制生物池中污泥浓度,当采用二沉池进行泥水分离时,一般可取0~100%。流量分配系数比q可根据进水碳氮比及理论碳氮比计算得出。The total nitrogen removal rate of the multi-stage AO biological treatment system is determined by the sludge reflow ratio R,the total segment number n,and the flow distribution co-efficient ratio q.According to the formula,the greater the number of segments n and the sludge return ratio R,the smaller the flow distribution coefficient ratio q,and the higher the total nitro-gen removal rate.Usually,the flow distribution coefficient ratio q can be calculated based on the influent carbon-nitrogen ratio and the theoretical carbon-nitrogen ratio.The sludge reflux ratio R mainly controls the sludge concentration in the biological tank.When the secondary settling tank is used for sludge-water separation,it is generally 0~100%.

关 键 词：分段进水 多级AO工艺 设计优化 脱氮 流量分配 碳源 

分 类 号：TU991[建筑科学—市政工程]