References some of my ...
Published by M. Musyafa Wiryanto, Business Development Dir. at PT. Pancawala Indochemical
References some of my experiences, from UASB reactor we through to Up flow Fixed bioremedetion media, and arrange the recycle sludge from 20-40% to anaerob equil pond. The afforded bod/cod degradation will in the 75-85% it's depend on the pH level control and no any poison or retarded microorganisms growth. Some times reach to 90% removal of BOD/COD.