Co-Treatment of Winery and Domestic Wastewaters in Municipal Wastewater Treatment Plants: Analysis of Biodegradation Kinetics and Process Performance Impacts

Winery wastewater (WWW) handling strategies often include co-treatment at municipal treatment plants (WWTPs). Despite this, definitive information regarding oxidation kinetics and process performance impacts due to is lacking. A combined Michaelis–Menten–University of Cape Town kinetic model has been found best describe the pH-inhibited aerobic biological WWW by heterotrophs in activated sludge from four WWTPs. The specific rate substrate consumption was highest biomass that had exposed (57.3 mg COD/g MLVSS·h) compared not (20.7 MLVSS·h). Bench-scale trials confirm sorption a key removal mechanism, with up 98% chemical oxygen demand 97% total organic carbon after 6 h reaction time. solids are quickly incorporated into floc may improve settleability loading rates above 75 suspended solids/L bioreactor volume expense significantly increasing observed yield. aerobic-activated system WWTPs can effectively co-treat WWW, provided limited WWTP designed accommodate seasonal loadings winery wastewater. identified mitigation measures be used co-treating facilities optimize along domestic