摘要
对UASB处理含油废水的效能和运行特征进行了研究,并通过高通量测序手段,分析了系统微生物群落结构的动态变化。实验结果表明,投加葡萄糖,采用逐步降低HRT和提高含油废水COD的运行方式,60 d可完成反应器启动。稳定运行期[有机负荷为8~10 kg/(m^3·d)],颗粒污泥的粒径为0.46~0.60 mm,COD平均去除率可达89.14%。进水基质会改变系统菌群结构,当含油废水为唯一碳源,系统内产甲烷菌、水解酸化菌和石油降解菌大量增殖,保证了UASB的高效稳定运行。
The efficiency and operation characteristics of UASB for the treatment of oil-bearing wastewater have been researched,and the dynamic changes of system micro-flora structure analyzed by high flux sequencing means.The experimental results show that it takes 60 days to complete the reactor start-up by means of decreasing HRT and increasing the oil-bearing wastewater COD.During the stable operation period[OLR=8-10 kg/（m^3·d）],the particle sizes of granular sludge are in the range of 0.46-0.60 mm,and the average COD removing rate can reach 89.14%.The influent substrates can change the structure of the system micro-flora.When oil-bearing wastewater is the only carbon source,the methanogens,hydrolytic acidification bacteria and oil-degrading bacteria produced in the system are proliferated greatly,which ensures UASB to run efficiently and stably.
出处
《工业水处理》
CSCD
北大核心
2017年第12期29-33,共5页
Industrial Water Treatment
基金
国家自然科学基金项目(21306229)
关键词
含油废水
UASB
厌氧处理
微生物群落
oil refinery wastewater
UASB
anaerobic digestion
microbial community
