摘要
通过单周期瞬时有机负荷(OLR)冲击试验,探究了OLR冲击对微压内循环反应器(MPR)去除效率的影响,采用提高曝气量的方式应对冲击,确定不同OLR冲击条件下的最适曝气量.结果表明,随着OLR的增加,出水COD低于50mg/L,出水TN低于10mg/L,但NH_(4)^(+)-N和TP的去除效率随负荷增加而降低.OLR增加到0.26gCOD/(gMLSS·d)时出水TP高于0.5mg/L;OLR增加到0.46gCOD/(gMLSS·d)时出水NH_(4)^(+)-N高于5mg/L.OLR分别为0.26,0.34,0.46gCOD/(gMLSS·d)时,相应最适曝气量分别为1.95,2.25,2.45L/min.在单周期OLR冲击下,通过调控曝气量的方式可以有效应对冲击,保证污染物去除效果.
Through a single-cycle instantaneous organic load rate(OLR)shock test,the influence of OLR shock on the micro-pressure swirl bioreactor(MPR)removal efficiency was explored.And adopt the method of increasing the aeration rate to deal with the shock,and determine the optimal aeration rate under different OLR shock conditions.The results showed that with the increase of OLR,the effluent COD was less than 50 mg/L and the effluent TN was less than 10 mg/L,but the removal efficiency of NH_(4)^(+)-N and TP decreased as the load increased.OLR increased to 0.26 gCOD/(gMLSS·d),the effluent TP was higher than 0.5 mg/L,and when it was increased to 0.46 gCOD/(gMLSS·d),the effluent NH_(4)^(+)-N was higher than 5 mg/L.When OLR is 0.26,0.34,0.46 gCOD/(gMLSS·d),the corresponding optimal aeration volume is 1.95,2.25,2.45 L/min,respectively.Under a single-cycle OLR shock,the influence could be effectively dealt with by adjusting the amount of aeration to ensure the removal of pollutants.
作者
王帆
么兴荣
刘松林
蒋维卿
艾胜书
王喜超
边德军
WANG Fan;YAO Xing-rong;LIU Song-lin;JIANG Wei-qing;AI Sheng-shu;WANG Xi-chao;BIAN De-jun;无(Changchun Institute of Technology,School of Hydraulic&Environmental Engineering,Changchun 130012,China;Key Laboratory of Urban Sewage Treatment of Jilin Province,Changchun 130012,China;Hainan Provincial Water Group Co.,Ltd,Haikou 571126,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2021年第8期3667-3675,共9页
China Environmental Science
基金
国家自然科学基金资助项目(51878067)
吉林省科技发展计划项目(202002027JC)。
关键词
有机负荷冲击
微压内循环反应器
去除效率
气量调控
organic load shock
micro-pressure swirl bioreactor
removal efficiency
gas volume control
