Extraction of nutrient substrate from highly concentrated poultry processing plants effluents

Abstract

Abstract The purpose of this work is to study the efficiency of extracting secondary raw materials from highly concentrated poultry processing enterprises effluents (VKSV) by electroflotation (EF). The main task is to extract biologically active substances in the form of a foam product from the drain, taking into account the achievement of optimal qualitative and quantitative indicators of the treated water that subsequently enters the biological treatment line, and to prevent secondary pollution. The research objects are the poultry processing enterprise VKSV. We determined the qualitative and quantitative indicators of valuable EF extraction by the reagent-free method from VKSV. It has been found that the VKSV alkalinization to pH = 9.5 increases the foam extraction efficiency product and reduces the pollutants concentration in the runoff. Increasing the temperature from 25 to 50 °C provides an increase in the efficiency of extraction of biologically active components, but leads to protein denaturation of the runoff particles. The HCV treatment with iron chlorides over 0.15 g/dm3 is accompanied by a sharp increase in the iron content and chlorine ions, while reducing the value COD index below 300 mgO2/dm3, contributes to the depressing.