There were increases in nitrogen content (12.1%), total solids(12.4%) and total suspended (12.6%) after the anaerobic digestion(Table 1). The physicochemical analysis of the compost (Table 3)
shows that the compost had nitrogen (2.4%) and phosphate(3.49%). While nitrogen is needed by plants for vegetative growthand enzymatic reactions, phosphate is required for seed production and root development. The nitrogen in the compost wasmainly ammonium nitrogen and could be lost by ammonia volatisation