| Summary: | In the recent years, with the increase in bioethanol production, the
increasing amounts of distillery wastewater are generated. Such wastewater
(stillage) is one of the most polluted waste product of the food and beverage
industries. The present study evaluates the treatment of distillery
wastewater by ultrafiltration (UF), in order to reduce its pollution and
evaluate the composition of the permeate and retentate. Polyethersulfone
ultrafiltration membrane with molecular weight cut-off (MWCO) 30000 Da, was
used for the experiments. The UF was carried out in dead-end mode. The
results of the analyses of the permeate and retentate obtained after
ultrafiltration were considered as well as different ways for their further
utilization. The pollutant level in the permeate was decreased significantly
in comparison to the raw stillage, and suspended solids were completely
removed from the stillage. [Projekat Ministarstva nauke Republike Srbije, br.
TR 31002]
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