The Performance of New Anaerobic Filter Process for High Concentration Winery Wastewater Treatment

The performances of three anaerobic filters (AF) with different types of supporting media (soft and hard packing double-media (SHM), hard packing media (HM) , and soft packing media(SM)) were evaluated through their ability to remove organic compounds in winery wastewater and biogas energy recovery. When hydraulic retention time (HRT) is 10 days and volume organic loading rate (OLR) is 9.02kgCOD/m³.d, the results show that the SHM AF has the strongest resistance impact load capability, and the highest removal rate of COD and SS. The average removal rates for COD are 77.5%, 76.1%, and 62.1. The removal rates for SS are 78.6%, 78.6%, and 66.6% in three filters. Biogas yield is 0.25m³/kgCOD_removed, 0.23m³/kgCOD_removed, and 0.21m³/kgCOD_removed respectively. New AF process has the greater advantage for low or high concentration wastewater, yet such advantage is more obvious for low concentration wastewater.