New additives of bioactive substances in the biochemical digestion processes

Abstract

The liquid wastes from the agro-industrial sector can serve as renewable source of value-added products, following the specific treatment. Such treatment is also important from the ecological point of view, as it may prevent the discharge in natural environment of wastes with varying composition, often containing toxic or environmentally-unfriendly components. Usually, the liquid wastes from agricultural and food sector are being processes through the following methods: sedimentation, decanting in stabilizing ponds, anaerobic digestion, etc. Our research was focused to intensification of anaerobic fermentation processes using the additives of bioactive substances introduced into the digested biomass. As an initial biomass, the vinasse from grain distillation taken from “Garma Grup” Company, Hâncești region, R. Moldova was taken, as well as the other liquid wastes, including from corn fermentation and beer production.