AvaliaÃÃo do processo de bioestabilizaÃÃo de resÃduos sÃlidos urbanos em LisÃmetro de campo




The solid wastes, formed at the most part of it by organic materials, bear biological degradation associated by others physical and chemical processes. These residues, deposited in landfill, are treated through anaerobic degradation; which engender, as a final result of the decomposition, leaching and bio-gas. However, these sub products can be studied and treated before being discharged to the atmosphere, since the problems caused by anaerobic degradation process at earthwork happen for lack cognizance of the landfill characteristics and for higher poisonousness the final sub products represent for the environment. In such case, this work comes to evaluating the process evolution of the urban solid residuesâ bio-stabilization, by controlling and observing the influence of physic-chemistry pattern, and the bio-gas concentration at an experimental lysimeter located at the supervised landfill at Muribeca â Pe. The choice of a lysimeter as a research object was established by the possibility of best control of the residue and profile qualities. At the simulated landfill was disposed almost 36.000 Kg of wastes, at this cell it had the care of representing the residue condition in real scale, such as draining system execution, the compression next that obtained on residues, farther on the monitorial equipments installed at the residue pulps. For the whole analyzed patterns, the results denote that the residues are in advanced state of degradation, or approximately biostabilized. Still, it can conclude the results are compatible by the literature basis for the Brazilian environment conditions.


anaerobic degradation engenharia civil monitoring lysimeter degradaÃÃo anaerÃbica lisÃmetro urban solid residues resÃduo sÃlido urbano

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