Spent process water

An integrated membrane filtration process was developed to produce water of drinking quality out of polluted process water from small and medium-sized enterprises in the food and beverage industries. It comprised a membranesupported bioreactor and a combined nanofiltration/UV disinfection stage. The

In this study, it could be shown that, drinking water consumption in the food industry could be drastically reduced by water reuse. Boiler make-up water or warm cleaning water could be economically produced from lowcontaminated process water (electrical conductivity below 3000 µS/cm and COD below 70