PILOT SCALE STUDIES ON UASB IN BIPHASIC REACTOR SYSTEM FOR THE TREATMENT OF DISTILLERY SPENTWASH

摘要

The biphasic anaerobic treatment of distillery spentwash using upflow anaerobic sludge blanket (UASB) at pilot plant scale has been described. The acidogenic phase of this system is a suspended growth process whereas the methanogenic phase is UASB. This system can treat high strength spentwash without dilution or addition of nutrients. COD removal of 70.8% was obtained at an organic loading rate of 6.05 kg COD/m~3/day and a hydraulic retention time of 16.5 days.