Energy valorization of sludge from the wastewater treatment plant of Boumerdes by biogas product (original) (raw)

This work represents only a beginning in the experimental study of the management of sludge from a biological method that aims to produce energy and reduce the risks associated with land application of sewage sludge and mineral fertilizers. Several pathways exist for the disposal of sludge, but the choice must depend on the cost of installation, the origin of sludge, the added value of the resulting product and the potential impact of the industry accepted on the environment. The landfill (also called storage) is a low-rewarding and legally prohibited in many countries. However, application of composts obtained should not be done without confirming their hygienisation, their stabilization and maturity. In addition, the sludge compost should be free of phytotoxicity, with concentrations of heavy metals (Cu, Zn, Cd, Hg, Cr ...) and organic micro levels below international standards. Our work was performed at the National Sanitation Office of Boumerdes, the objective is, to assess the ...

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