A novel approach to utilize recycled concrete aggregates as landfill liner

A novel approach to utilize recycled concrete aggregates as landfill liner

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Demolition wastes are produced in huge quantity.Generally, they are used in the construction field as replacement for normal aggregate, pavement, roadways, curbs, embankment, etc.still there are plenty of quantity to be used for various purposes.Landfill is a place where huge quantity of material is required as cover to protect the ground from contamination.In this paper optimal utilization of Recycled Coarse Aggregate (RCA) as a landfill layer is explored.

It was found that RCA lacks adsorbent skull bride and groom capacity, in order to address the issue various chemicals were added to induce adsorbing capacity in the RCA.The pH observation, lucidity and color were analyzed to assess the adsorbent property of RCA.In this paper a study on various adsorbents such as activated carbon, silica gel powder, zeolite, sodium chloride, calcium sulphate, calcium chloride that induces adsorbing characteristics to RCA was read more studied.The pilot setup design consists of a layer of RCA, paper pulp, adsorbents and the unfiltered leachate.The setup was observed for the performance of the adsorbents when added with RCA.

The study concluded that the performance of activated carbon, zeolite and sodium chloride was Congenial when compared to silica gel, calcium chloride and calcium sulphate.