Design and operation of UASB-A/O process for gentamicin wastewater
Zhang Jing1, Yang Jingliang2, Tian Zaifeng3
1. Appraisal Center for Environment and Engineering of Hebei Province, Shijiazhuang 050051, China;
2. Hebei University of Science and Technology, Shijiazhuang 050018, China; 3. Hebei Provincial Institute of Environmental Sciences, Shijiazhuang 050037, China
The pharmaceutical wastewater of gentamicin production has high concentration of COD and NH3 - N. The wastewater was pretreated by quality-based collecting, neutralizing and regulating, then was treated by “UASB - A/O” process. The operating results show that the effluent of this facility is quite enough to meet the requirement in “Discharge standards of water pollutants for pharmaceutical industry Fermentation products category”( GB 21903 - 2008 ).