序批式生物膜法对污水中污染物的去除性能及其对磷的富集性能  

Performance of sequencing batch biofilm reactor on pollutants removal and phosphorus enrichment in wastewater

作　　者：高鹏飞 丁燕燕 黄博 刘缘 潘杨[1,2] 黄勇[1,2] GAO Pengfei;DING Yanyan;HUANG Bo;LIU Yuan;PAN Yang;HUANG Yong(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;Institute of Environmental Biology,Suzhou University of Science and Technology,Suzhou 215009,China)

机构地区：[1]苏州科技大学环境科学与工程学院,苏州215009 [2]苏州科技大学环境生物研究所,苏州215009

出　　处：《环境工程学报》2024年第8期2202-2209,共8页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51938010)。

摘　　要：序批式生物膜法在去除污染物的同时可富集污水中的磷。现有文献主要针对原污水中有机物和氮已得到有效去除的情况,以人工配制低含磷污水进行的实验室研究。基于此,采用经初沉后的实际城市污水,探究了该工艺同步去除污染物与富集磷的可行性。结果表明,该工艺在适宜的环境与操作条件下能有效去除进水中的多种污染物,同时具有磷富集性能:当水温大于22.5℃,好氧/厌氧的HRT为5 h/3 h,DO为6.5 mg·L^(-1)时,有机物、氨氮、总氮及磷的去除率分别高于83.8%、93.8%、93.4%、97.0%,富集液中PO_(4)^(3-)可达42.1 mg·L^(-1)。温度和DO是影响工艺性能的主要因素。在实验条件下,温度对氨氮的去除有明显影响,而对有机物、磷的去除与磷的富集影响较小;较高的DO有利于有机物、氨氮和磷的去除。该工艺在好氧阶段表现出稳定的同步硝化反硝化现象,且不受高DO的影响,总氮去除主要受氨氮去除的制约。The sequencing batch biofilm reactor is capable of removing pollutants and simultaneously enriching phosphorus in wastewater.Existing literature focuses on laboratory studies conducted with artificially formulated low phosphorus wastewater when organic matter and nitrogen have been effectively removed from raw sewage.Based on this,the feasibility of the process for simultaneous pollutant removal and phosphorus enrichment was investigated using actual municipal wastewater after primary sedimentation.The results showed that the process could effectively remove multiple pollutants in the influent water under suitable environmental and operating conditions,and at the same time,it had the performance on phosphorus enrichment;when the water temperature was greater than 22.5℃,the aerobic/anaerobic HRT was 5h/3h,and the DO was 6.5 mg·L^(-1),the removal rates of organic substance,ammonia nitrogen,total nitrogen and phosphorus were higher than 83.8%,93.8%,93.4%,and 97.0%,respectively,and the concentration of PO_(4)^(3-)P in enriched solution was 42.1 mg·L^(-1).Temperature and DO were the main factors affecting the process performance.Under the experimental conditions,the temperature had a significant effect on the removal of ammonia and nitrogen,while it had less effect on the removal of organic substance and phosphorus,and phosphorus enrichment;higher DO favored the removal of organic substance,ammonia and phosphorus.The process exhibited stable simultaneous nitrification-denitrification in aerobic stage and was not affected by high DO,and total nitrogen removal was mainly governed by ammonia nitrogen removal.

关 键 词：序批式生物膜法 城市污水 同步去除/富集磷 运行性能 

分 类 号：X703[环境科学与工程—环境工程]