Patent ID: 7892310
Filing Date: 2011-02-22
Classification: C02F,C05F,Y02E,Y02P,Y02W,Y10S

Abstract:
1. A method of treating biowaste comprising the steps of: (i) fermenting the biowaste in a pathogen reduction stage under anaerobic conditions for a predetermined period between 1 and 6 days at a temperature in the mesophillic temperature range and a pH between 5.2 and 6.1; and (ii) subsequently separating solid and liquid phases to produce a fermented cake and a fermented liquor, wherein the fermented cake has a total Volatile Fatty Acids (tVFA) value of over 1000 mg/L with at least 15% solids on a dry basis, and the fermented liquor also has a total Volatile Fatty Acids (tVFA) value of over 1000 mg/L.