EHBR (Enhanced Hybrid Biofilm Reactor) Application in the Wastewater Treatment of Pharmaceutical R&D Building

A study of the integrated EHBR system was conducted to investigate the performance of the system for treatment of pharmaceutical wastewater over 3 years. After 3 years of operation, the integrated EHBR system presented excellent ability of COD removal and notable impact resistance. The hydrolysis/acidification process could remove 7.2% of COD, 38.6% of TN, and 9.5% of TP. The removal efficiencies of COD, NH₄⁺-N, TN, TP, and SS in the EHBR process were 85.5, 96.2, 71.1, 72.5, and 81.1%, respectively. After postprocessing with activated carbon adsorption, the effluent of integrated treatment EHBR system kept stable with COD below 200 mg/L, NH₄⁺-N below 5 mg/L, and TP below 3 mg/L. The integrated EHBR system could effectively and stably treat the high-loading mixed pharmaceutical wastewater from the high-tech pharmaceutical R&D building in Tianjincity of China, and the effluent quality could meet the wastewater discharge standard.