摘要
采用自行设计开发的气升式内循环气液固三相流化床反应器,并结合固定化包埋技术,连续处理炼油工业污水。结果表明,在水力停留时间为9 h,固定化微生物颗粒填充率为5%的优化条件下,污水中化学需氧量(COD)及石油类化合物的平均去除率分别约为87%,95%。该反应器的COD容积负荷可高达2.56 kg/(m3.d),具有很强的抗水力负荷冲击和抗COD容积负荷冲击的能力。
By the chemical embedding technology,the refinery wastewater was continuously treated in a self-designed airlift inner-loop three-phase fluidized bed bioreactor.The results showed that when the hydraulic retention time（HRT） was 9h and the filling ratio of the microorganism-immobilized pellets was 5%,the average chemical oxygen demand removal and the average total petroleum hydrocarbons removal were about 87% and 95% respectively.The chemical oxygen demand volumetric loading of the reactor could reach 2.56kg/（m3·d）.This biological fluidized bed reactor had excellent shock resistances of hydraulic loading and chemical oxygen demand volumetric loading.
出处
《石化技术与应用》
CAS
2010年第5期410-414,共5页
Petrochemical Technology & Application
关键词
炼油污水
生物降解
微生物固定化
气升式内循环三相流化床反应器
化学需氧量
石油类化合物
refinery wastewater
biodegradation
microbial immobilization
airlift inner-loop three-phase fluidized bed bioreactor
chemical oxygen demand
petroleum hydrocarbons
