瞬时NH_(4)^(+)-N冲击对SBR系统污染物去除的影响  

Effect of Transient NH_(4)^(+)-N Impacton Pollutant Removal in SBR Systems

作　　者：王帆[1,2] 肖乐天 艾胜书 蒋维卿[1,2] 刘轩彤 边德军[1,2] WANG Fan;XIAO Letian;AI Shengshu;JIANG Weiqin;LIU Xuantong;BIAN Dejun(Changchun Institute of Technology;Jilin Provincial Key Laboratory of Munlclpal Wastewater Treatment: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》2024年第2期105-110,共6页Technology of Water Treatment

基　　金：吉林省科技发展计划项目任务书(20220203045SF)。

摘　　要：探究了瞬时NH_(4)^(+)-N冲击对SBR系统污染物去除效果的影响,在反应运行的第19、33、45天,通过提高单周期瞬时NH_(4)^(+)-N质量浓度至41.05、60.02、80.15 mg/L,对SBR系统进行冲击。结果表明,进水NH4+-N质量浓度从41.05 mg/L增加到80.15 mg/L时,COD、TP、NH_(4)^(+)-N去除效果没有明显变化,TN出水质量浓度从10.25 mg/L增加到21.49 mg/L,TN的出水变高主要受碳源不足的影响。三次瞬时NH4+-N冲击负荷下,NH4+-N降解速率基本不变。三次瞬时NH_(4)^(+)-N冲击负荷下,SBR系统中EPS总量对比常负荷运行时,均有所提高,且PN的含量在增加,PS的含量先升高后降低。而PN和PS含量的变化,在一定程度上会对活性污泥的絮凝造成影响,导致活性污泥粒径逐渐减少。系统在受到瞬时NH_(4)^(+)-N冲击后,TN出水会有所提高,但是经过一个周期的运行便可以恢复。The effect of transient NH_(4)^(+)-N shock on the pollutant removal effect of the SBR system was investigated.The SBR system was shocked by increasing the single-cycle transient NH_(4)^(+)-N concentration to 41.05,60.02,80.15 mg/L on the 19th,33rd and 45th days of reaction operation.The results showed that there was no significant change in COD,TP and NH_(4)^(+)-N removal when the influent NH_(4)^(+)-N concentration increased from 41.05 mg/L to 80.15 mg/L,and the TN effluent concentration increased from 10.25 mg/L to 21.49 mg/L.The higher TN effluent was mainly influenced by the lack of carbon sources.The NH_(4)^(+)-N degradation rate was basically unchanged under three transient NH_(4)^(+)-N impact loads.Under the three transient NH_(4)^(+)-N shock loads,the total amount of EPS in the SBR system was increased compared with the normal load operation,the content of PN was increasing,and the content of PS was increasing and then decreasing.The changes of PN and PS content with a certain extent affect the flocculation of activated sludge,leading to the gradual decrease of activated sludge particle size.After the transient NH_(4)^(+)-N shock,the TN effluent will be increased,but it will recover after one cycle of operation.

关 键 词：SBR反应器 NH_(4)^(+)-N浓度 瞬时冲击 EPS 粒度粒径 

分 类 号：X703.1[环境科学与工程—环境工程]