Biological conversion of olive pomace into compost by using Trichoderma harzianum and Phanerochaete chrysosporium
2009
Haddadin, Malik S.Y. | Haddadin, Jamal | Arabiyat, Omar I. | Hattar, Butros
Olive pomace was composted by using a reactor for a period of 50days in four bioreactors. Urea was added to adjust C/N ration between 25-30. At the end of 50days of composting using Trichoderma harzianum and Phanerochaete chrysosporium, cellulose and lignin were highly degraded. It was found that after 30days, P. chrysosporium and T. harzianum degraded approximately 71.9% of the lignin and 59.25% of the cellulose, respectively. The percent of ash content in the raw waste mixture was 13%. This percentage increased from 13% to 18.55% in treatment bioreactors and from 13% to 13.55% in control reactors during 50day of composting process. The amount of CO₂ produced by the treated sample was 3mg of CO₂/g organic carbon which is indicated that the treated sample was considered as stable compost. The results proved that the use of accelerating agents was found to be efficient in producing mature stable with nearly non-phytotoxicity compared to control sample in less than 50days.
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