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Valorization of Jatropha curcas waste by composting
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نویسنده
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ait babahmad r. ,boukeskasse a. ,outzourhit a. ,papazoglou e.g. ,hafidi m. ,ouhammou a.
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منبع
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journal of materials and environmental science - 2016 - دوره : 7 - شماره : 2 - صفحه:438 -443
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چکیده
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Jatropha curcas is a species that belongs to the euphorbiaceae family that originated from central america. the species is generally used for the production of oil which is further processed into biodiesel by transesterification. for intensive production several parameters are important and among them is pruning that generates significant amounts waste biomass. in this context the objective of our study is to make use of this green waste by composting. in the pilot study carried out here a total of 48 kg (40 kg of branches and 8 kg of fruit shells) of homogenized waste was placed in a bioreactor. during composting,the reactor was fed by a compressed air flow to ensure thorough oxygenation. an automatic system continuously kept the biomass in movement. during the composting process,samples were taken at different stages to monitor various physicochemical parameters. after 1 month of composting,the analysis revealed the flowing parameters: c /n<21,nh4+/no3-<1 and a ph between 5 and 7. the levels of phosphorus rose after the 5th day of composting to reach 0.03 mg/g. these results confirm that the final compost meets the standards required for its use in agriculture.
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کلیدواژه
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Composting; Green waste; Jatropha curcas L.; Reactor
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آدرس
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laboratory of ecology and environment,department of biology,cadi ayyad university,bp 2390,marrakech,morocco,faculty semlalia,cadi ayyad university,bp 2390,marrakech, Morocco, laboratory of ecology and environment,department of biology,cadi ayyad university,bp 2390,marrakech,morocco,faculty semlalia,cadi ayyad university,bp 2390,marrakech,morocco,laboratory of biology and biotechnology of the micro organism,department of biology,faculty semlalia,cadi ayyad university,marrakech, Morocco, laboratory of solid state physics and thin films,department of physics,cadi ayyad university,bp 2390,marrakech,morocco,faculty semlalia,cadi ayyad university,bp 2390,marrakech, Morocco, agricultural university of athens,75 iera odosst.,athens, Greece, laboratory of ecology and environment,department of biology,cadi ayyad university,bp 2390,marrakech,morocco,faculty semlalia,cadi ayyad university,bp 2390,marrakech, Morocco, laboratory of ecology and environment,department of biology,cadi ayyad university,bp 2390,marrakech,morocco,faculty semlalia,cadi ayyad university,bp 2390,marrakech, Morocco
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Authors
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