Abstract

This paper presents the possibillity of using native microoganisms from the brewery’s post-treatment sludge in order to create fertilizers by the windrow composting. The result showed that there are 3 representive useful microoganisms in the following: C1, C4 and C6. At the same time, the change in the composition of supplementary fiber into 4 treatment has resulted in the following : the everage C/N ratio of treatment are from 20 to 29, the average pH of the ratios is 7,82; total nitrogen fixation average is 2108; the highest is 5108; the smallest is 8107, microoganisms which are capable of decomposing cellulose average is 7 x 106; the highest is 9106, the lowest is 5106. Total Salmonella and E. coli are 0; the after-testing products meet the standard in the Viet Nam Bank for Agriculture and Rural Development.