电磁波加载内回流硝化液的A/A/O系统污泥减量研究  

Sludge Reduction in A/A/O System with Internal Reflux Nitrification Liquid Treated by Electromagnetic Wave

作　　者：桑稳姣[1] 汪晨 贾丹妮 李强[1] 卢伟[1] 曹诚 李翠华[1] SANG Wen‑jiao;WANG Chen;JIA Dan‑ni;LI Qiang;LU Wei;CAO Cheng;LI Cui‑hua(School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学建筑与土木工程学院,湖北武汉430070

出　　处：《中国给水排水》2024年第1期68-75,共8页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51108360)。

摘　　要：将电磁波加载于A/A/O系统的内回流硝化液,在分析溶胞率与内回流硝化液特性变化关系的基础上,探析系统的污泥减量提升效果及功能菌属的分布特征。结果表明,将电磁波加载于内回流硝化液可显著提升A/A/O系统的污泥减量效果,功能菌属中慢性生长细菌、水解细菌、发酵细菌和捕食细菌的总相对丰度增加。在电磁波加载功率为100 W、加载时间为75 s、内回流硝化液加载比例为10%的条件下,系统污泥表观产率降低了15.68%,厌氧池、缺氧池和好氧池的功能菌属总相对丰度分别增加了19.51%、20.59%、31.55%;而当电磁波加载功率增至400 W时,系统污泥表观产率降低了43.14%,厌氧池、缺氧池和好氧池的功能菌属总相对丰度分别增加了18.34%、26.30%、33.91%。Electromagnetic wave was employed for the treatment of internal reflux nitrification liquid in A/A/O system to obtain better sludge reduction performance.After establishing the relationship between the cell lysis rate and the characteristics of the internal reflux nitrification liquid,electromagnetic wave was applied to treat the internal reflux nitrification liquid of an A/A/O system,and the improved performance of sludge reduction and the distribution characteristics of functional bacteria in the system were analyzed.The internal reflux nitrification liquid treated by electromagnetic wave significantly improved the sludge reduction performance of the system.The total relative abundance of functional bacteria such as chronic growing bacteria,hydrolytic bacteria,fermenting bacteria and predatory bacteria increased.Under the following operating conditions:power of electromagnetic wave was 100 W,treatment time was 75 s,and proportion of the treated internal reflux nitrification liquid was 10%,the apparent sludge yield decreased by 15.68%,and the total relative abundance of functional bacteria in anaerobic,anoxic and aerobic tanks increased by 19.51%,20.59%and 31.55%,respectively.Under the same operating conditions except the power of electromagnetic wave was increased to 400 W,the apparent sludge yield decreased by 43.14%,and the total relative abundance of functional bacteria in anaerobic,anoxic and aerobic tanks increased by 18.34%,26.30%and 33.91%,respectively.

关 键 词：污泥减量 电磁波加载 内回流硝化液 污泥表观产率 溶胞率 菌属丰度 

分 类 号：TU992[建筑科学—市政工程]