Treatment of Wine Distillery Wastewater Using an Anaerobic Moving Bed Biofilm Reactor with Low Density of Polyethylene Support

摘要

An anaerobic moving bed biofilm reactor filled with small and low density polyethylene support as biofilm carrier was operated to treat wine distillery wastewater for nearly 8 months. The support packed in the reactor is Bioflow 30 with density 0.92g/cm3 and specific surface area of 320m2/m3. The reactor achieved soluble COD removal efficiency of 86.1% at organic loading rate(OLR) between 16.88 and 18.43g COD/l/ d and an hydraulic retention time(HRT) of 2.49days. The experimental results show that the reactor is an interesting choice for anaerobic digestion of wine distillery wastewater. The experiment provides a good base for choosing packing in implementation of the reactor.