UBF与UASB两相厌氧系统处理Zn5-ASA医药废水的研究

采用以铁屑为填料的UBF反应器作酸化相、以UASB反应器作甲烷相的两相厌氧系统处理Zn5-ASA医药废水。实验结果表明:此系统在UBF与USAB的HRT分别控制在5.95h和11.43h时，UBF与UASB的OLR(以COD计)分别高达58.44和17.01kg/(m3.d)，对SCOD和BOD₅的总去除率分别达90%和95%左右，具有系统运行稳定、处理效率高等优点。系统中UBF反应器所选用的铁屑填料，通过微电解作用，能够有效提高废水的可生化性，且可省去通常的调碱工序，为难降解有机废水的处理开辟了新途径。 

Study on the Treatment of Zn 5-ASA Medical Wastewater in a Two-Phase (UBF-UASB) Anaerobic System

A two-phase anaerobic system composed of UBF acidification reactor with iron chip filter and UASB mechanization can treat medical wastewater from production of Zinc5-aminosalicylate (Zn5-ASA) of high concentration. The experiment results showed that when the HRT of the UBF and UASB was controlled at 5.95 h and 11.43 h respectively, the OLR of UBF and UASB reactors could COD highly reached 58.44 and 17.01 kg/(m³.d) respectively, and the total removal rate of COD and BOD₅ was about 90% and 95% respectively. From these results, this system has advantages of stable operation and high treatment efficiency. In the system, the iron chip filter of the UBF reactor can efficiently improve the bio-degradation of the wastewater by micro-electrolysis, and can save the regular adjusting alkali process. This system may open a new method for the treatment of organic wastewater difficult to degrade.