Abstract

A process designed for regeneration of used oils, and particularly synthetic oils originated from the automobile industry, is presented. These synthetic oils constitute 45% of the total waste oils originated in Spain. The main objective of the process is to obtain a new fuel capable of being used in internal combustion engines for cogeneration of electric and thermal energies. The final product obtained after the different steps shows concentrations of polluting elements allowed by legal regulations and fulfilling the basic energetic requirements to be considered as a suitable fuel for the above-mentioned objectives. The results here shown constitute the basis for an industrial pilot plant of cogeneration using a fuel obtained from waste oils after the treatment proposed by TERBIPROMAT-SADER.

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Landfill leachate are defined as those aqueous streams generated as a consequence of rain water percolation through wastes, biochemical processes in waste's cells and the inherent water content of wastes themselves. The generation of municipal solid waste grows exponentially in urban society as a consequence of population growth, concentration of population in urban centers and new patterns of consumption. One of the main problems generated by this common practice is the production of leachate. It is a very complex wastewater containing different heavy metals, organic and inorganic compounds, some of them refractory and toxic that possesses colour and odour. In the current investigation neutralization of leachate is carried out by electro chemical process using stainless steel as anode and graphite as cathode.Leachate is collected from dumping yard in Karwar and electrochemical process is carried out at different volt, temperature and minutes. The properties of leachate before and after treatment is studied and discussed here.