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 growth
and enzymatic reactions, phosphate is required for seed production and root development. The nitrogen in the compost was
mainly ammonium nitrogen and could be lost by ammonia volatisation