TY  - JOUR
AU  - Rezaee, A. 
AU  - Ansari, M. 
AU  - Khavanin, A. 
AU  - Sabzali, A. 
AU  - Aryan, M. M 
PY  - 2005
TI  - Hospital Wastewater Treatment Using an Integrated Anaerobic Aerobic Fixed Film Bioreactor
JF  - American Journal of Environmental Sciences
VL  - 1
IS  - 4
DO  - 10.3844/ajessp.2005.259.263
UR  - https://thescipub.com/abstract/ajessp.2005.259.263
AB  - The design and operation of wastewater treatment systems for hospital is a challenge for wastewater engineers. In this study, a pilot-scale system integrated anaerobic-aerobic fixed film reactor for hospital wastewater treatment was constructed and its performance was evaluated. The aim of the study was the elimination of organic compounds and a significant reduction of bacteria. The system had been operated for 90 days. The results show that the system efficiently removed 95.1% of the chemical oxygen demand (COD) from a hospital wastewater with the influent COD of 700 mg L-1, leaving 34 mg L-1 COD in the effluent. The significant removal of pathogenic  bacterial has been do after operating of the system. The advantages of the treatment system studied for small wastewater flows include: (I) simple operation and maintenance; (II) efficient removal of COD and bacteria; and (III) low-energy consumption.