SRT对复合式MBR处理低C/N生活污水的影响研究  

Study on the Influence of SRT on the Treatment of Low C/N Domestic Wastewater by Compound MBR

作　　者：张亚平 Zhang Yaping(Jingzhou Ecological Environment Bureau Jiangling County Branch,Jingzhou 434100,China)

机构地区：[1]荆州市生态环境局江陵县分局,湖北荆州434100

出　　处：《广东化工》2020年第18期126-127,114,共3页Guangdong Chemical Industry

摘　　要：采用投加悬浮填料的复合式膜生物反应器(HMBR)处理低C/N生活污水,考察HMBR系统中HRT对COD和脱氮效果的影响,探究低C/N生活污水处理方案。结果表明HMBR处理低C/N生活污水的最佳SRT为25 d,HMBR运行稳定、抗冲击负荷能力强,此时COD和TN的去除率分别达到88%和64%以上,但SRT对NH4+-N去除效果影响不大,NO2--N和NO3--N含量在SRT为35 d时达到最高,分别为4.01 mg/L和6.91 mg/L。Use a composite membrane bioreactor(HMBR)with suspended fillers to treat low-C/N domestic sewage,investigate the impact of HRT in the HMBR system on COD and denitrification,and explore low-C/N domestic sewage treatment options.The results show that the best SRT for HMBR to treat low-C/N domestic sewage is 25 d.HMBR runs stably and has strong impact load resistance.At this time,the removal rates of COD and TN are above 88%and 64%,respectively,but SRT is effective for NH4+-N The removal effect has little effect.The contents of NO2--N and NO3--N reach the highest when SRT is 35 d,4.01 mg/L and 6.91 mg/L,respectively.

关 键 词：复合式MBR SRT 硝化-反硝化 低C/N生活污水 

分 类 号：X703[环境科学与工程—环境工程]