进水碳源类型对SNEDPR系统脱氮除磷性能的影响研究  

Research on the Impact of Infl uent Carbon Source Types on the Nitrogen and Phosphorus Removal Performance of the SNEDPR System

作　　者：李招群 张仁翔 宋子洋 敬双怡[2] Li Zhaoqun;Zhang Renxiang;Song Ziyang;Jing Shuangyi(Fuzhou State-owned Assets Investment Holding Co.,Ltd.,Fujian,350000;Inner Mongolia University of Science and Technology,Collaborative Innovation Center of Autonomous Region for Ecological Protection and Comprehensive Utilization in the Inner Mongolia Section of the Yellow River Basin,Inner Mongolia,014010;Beijing Qinghuan Smart Water Technology Co.,Ltd.,Beijing,100086)

机构地区：[1]福州国有资产投资控股有限公司,福建350000 [2]内蒙古科技大学黄河流域内蒙古段生态保护与综合利用自治区协同创新中心,内蒙古014010 [3]北京清环智慧水务科技有限公司,北京100086

出　　处：《当代化工研究》2024年第21期1-4,共4页Modern Chemical Research

基　　金：2024年内蒙古自治区自然科学基金项目“基于磁性载体MBBR处理低温污水的反硝化脱氮机理研究”(项目编号:2024MS05046);2023年高校基本科研业务费项目“磁性载体强化低温A2O泥膜复合系统”(项目编号:2023QNJS134)。

摘　　要：项目拟以同步硝化内源反硝化磷(SNEDPR)为研究对象,研究不同碳源对其去除效果的影响。在此基础上,项目拟以连续运行60天的移动床生物膜法(MBBR)系统为研究对象,以乙酸钠、乙酸钠+葡萄糖(3:1)、丙酸钠+葡萄糖(3:1)为碳源,分为三个阶段。通过测定不同参数,分析不同碳源对COD、磷和氮去除的影响。结果表明,不同碳源对COD去除性能影响相对较小,系统对有机物利用率均较高;葡萄糖加入初期会导致厌氧释磷量和PO_(4)^(3-)-P去除率降低,但后续促进了PAOs除磷,丙酸钠与葡萄糖的协同作用不利于系统除磷;NH_(4)^(+)-N的去除主要发生在第一个循环周期,系统硝化效果逐渐增强,葡萄糖有利于GAOs脱氮,丙酸钠和葡萄糖混合碳源不利于GAOs的内源反硝化作用。该研究为SNEDPR系统在实际污水厂的应用提供了理论依据和参考。This project intends to take simultaneous nitrification endogenous denitrification and phosphorus removal(SNEDPR)as the re-search object to study the influence of different carbon sources on its removal effect.On this basis,this project plans to take the moving bed biofilm reactor(MBBR)system that has been continuously operated for 60 days as the research object,with sodium acetate,sodium acetate+glucose(3:1),and sodium propionate+glucose(3:1)as carbon sources,divided into three stages.By measuring different parameters,the influence of different car-bon sources on the removal of COD,phosphorus,and nitrogen was analyzed.The results show that different carbon sources have a relatively small impact on the COD removal performance,and the system has a high utilization rate of organic matter;the addition of glucose initially leads to a de-crease in the anaerobic phosphorus release amount and the removal rate of PO_(4)^(3-)-P,but it promotes the phosphorus removal by PAOs later,and the synergistic effect of sodium propionate and glucose is not conducive to the phosphorus removal of the system;the removal of NH_(4)^(+)-N mainly occurs in the first cycle,and the nitrification effect of the system gradually enhances.Glucose is benefici al for GAOs to remove nitrogen,and the mixed car-bon source of sodium propionate and glucose is not conducive to the endogenous denitrification of GAOs.This study provides a theoretical basis and reference for the application of the SNEDPR system in actual sewage treatment plants.

关 键 词：同步硝化内源反硝化除磷(SNEDPR) 碳源类型 脱氮除磷性能 移动床生物膜反应器(MBBR) 

分 类 号：X703[环境科学与工程—环境工程]