| Abstract: |
In large scale composting experiments, cattle manure was composted with, some commonly available bulking agents in the Nile Delta (rice straw, maize straw and banana leaves) and without anybulking agent in order to investigate their effect on the compostingperformance through monitoring the Physico-chemical changesoccurred along the composting period. The effect of particle lengthand bulking ratio as factors affecting composting process was alsoinvestigated during composting of cattle manure with rice straw. ThePhysico-chemical parameters which were used to assess the composting performance in the aforementioned experiments are temperature, moisture content, pH, total organic matter, total organic carbon, total nitrogen, CIN ratio and inorganic ammonia and nitrasanitize animal manures was examined in composting mixture formulated from cattle manure combined with half cut rice straw at a ratio of 30% through determination of the total mesophilic and thermophilic bacterial populations as well as the fecal pathogenbacterial counts (total coliforms, fecal coliforms and fecal Enterococci) .The obtained results were summarized as follows:1- The temperature profile during composting of cattle manure showed’gradual increasing till reaching the peak (57.2, 62.3, 49.8, 62.6,52.9,44.5,49.5 & 51.6 QC) for cattle manure composted with 20 &30% half cut rice straw, banana leaves, maize straw, 20% fine cut& full length rice straw, 10% half cut rice straw and cattle manurewithout bulking agents. Moreover cooling down in the pile
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