不同碳源对微压反应器脱氮除磷的影响研究  

Study on the Influence of Different Carbon Sources on Nitrogen and Phosphorus Removalin Micro-pressure Swirl Reactor

作　　者：田曦[1,2] 李雪娇 董鹏辉 吕颜宏 冯洪磊 边德军 TIAN Xi;LI Xuejiao;DONG Penghui;LÜYanhong;FENG Honglei;BIAN Dejun(Changchun Institute of Technology;Jilin Provincial Key Laboratory of Urban Sewage Treatment,Changchun Institute of Technology:Changchun 130012,China)

机构地区：[1]长春工程学院 [2]吉林省城市污水处理重点实验室,吉林长春130012

出　　处：《水处理技术》2022年第8期128-133,共6页Technology of Water Treatment

基　　金：国家自然科学基金(51878067);吉林省发改委高技术处-产业技术研究与开发(2019C056-4);吉林省科技发展计划项目(20180201020SF,202002030JC)。

摘　　要：为探究适用于MPR的外碳源,实验通过3组微压反应器(MPR)并行运行,分别投加单一碳源,考察淀粉、葡萄糖和乙酸钠对MPR系统脱氮除磷的影响。结果表明,在实验运行条件下以淀粉为碳源能更有效地促进MPR系统的生物脱氮。通过典型周期历时分析发现,淀粉降解缓慢,在运行周期中保证了反硝化对碳源的需求,且具有较好的同步硝化反硝化作用,从而使系统获得了较好的脱氮效果。DO检测结果表明,以淀粉为碳源的MPR系统存在明显的DO分区,为同步硝化反硝化作用奠定了基础。EPS检测结果证实,以淀粉为碳源能促使活性污泥储存更多糖类物质,可为后续反硝化提供碳源。实验结果为MPR工艺外加碳源的选择及其实际应用推广提供借鉴和参考。To explore the external carbon source suitable for MPR,three MPRs were run in parallel,and a single carbon source was added separately to investigate the effect of starch,glucose and sodium acetate on MPR biological nitrogen and phosphorus removal.The results of the study showed that starch as a carbon source could more effectively promote the biological denitrification of the MPR system under the experimental operating conditions.Through the analysis of the typical cycle duration,it was found that starch was more difficult to degrade,and the demand for carbon source for denitrification was ensured during the operation cycle,so that the system obtains a better denitrification effect.The DO detection results showed that the MPR system with starch as the carbon source had obvious DO partitions,which laid the foundation for simultaneous nitrification and denitrification.The EPS test results confirmed that using starch as a carbon source could encourage activated sludge to store more carbohydrates and provided a carbon source for subsequent denitrification.The test results provided reference for the selection of the additional carbon source of the MPR process and its practical application and promotion.

关 键 词：不同碳源 污水处理 生物脱氮 生物除磷 微压反应器 

分 类 号：X703[环境科学与工程—环境工程]