Study of Biomethanation process from Pharmaceutical wastewater using UASB reactor

Upflow anaerobic sludge blanket (UASB) reactor is widely used for treatment of industrial wastewater. In this Study, performance of a lab-scale Up-flow anaerobic sludge blanket (UASB) reactor, treating an antibiotic chemical synthesis-based pharmaceutical wastewater, was evaluated under different operating conditions. A pipe with a diameter of 152.4 mm and total height of 1050 mm with approximate volume of 20 liter was used as a reactor. The loading rates on reactor were continuous remain same after recycling of waste two times. After recycling of waste for getting reactor in saturation condition and get a maximum reduction of COD and continuous gas generation. The COD concentrations used in the present investigation ranges between 61405 mg/L to 63105 mg/L. During this study, which lasted for 30 days, the temperature of the wastewater entering the reactor ranged from 18 to 22oC and no heat exchanger was used. Finally the removal ratio of COD with hydraulic retention time of 24 hours was maximum 67.8 percent respectively and gas generation was maximum 0.024 m3/day.