الفهرس 
Results of the experimental and studyOnly 14 pages are availabe for public view
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Abstract
The land will be the final host for the disposal of solid waste and sludge from water waste treatment plant. The sludge and solid waste that will be dumped to the land should be treated with an inexpensive and less environmental method.
In this work, adding clay minerals and/or waste water sludge to municipal solid waste MSW to accelerate the biodegradation of solid waste in order to increase biogases released and improve the quality of the leachate.
Four series of experiments were conducted on the solid waste-clay or soild waste-clay & sludge mixtures. The solid waste used is a random sample of kitchen refuse. The raw sludge used in this study was mixtures of primary and waste activated sludge at a ratio of 1:1, brought from zinein wastewater treatment plant, west of cairo, The clay mineral used was montmorillonite . To simulate the anaerobic conditions, bench and pilot scale models were applied on two series of experiment for each. Used bioreactors were consisted of closed reactors connected to gas collectors. Each gas collector was attached to an open jar to receive ans measure the volume of water collected due to the pressure of the off-gas.
In order to determine the optimum moisture content and the sludge mixing ratio, different ratios of sludge ranged from 15% to 80% have been mixed with MSW. The optimum mixing ration was 50% sludge. The MSW was mixed with variable amounts of clay mineral ranged between 18% and 80%, to study the effect on the MSW degradation. The cell receiving 40% clay mineral achieved the maximum amount of biogas. Clay minerals activate wide variety of organic reactors leading to transformation and/or decomposition of the absorbed species. In addition, results show that using of 40% clay with MSW instead of wastewater sludge was more active in soild waster decomposition and biogas production. The biogas released was 75.14% and 52.37% as percentage of theoretical biogas volume THBV% prespectively.