Waste Stabilization and Solidification Techniques by Cement as a Main Binder

Malaysia generates about 1,103,457.06 metric tonnes of hazardous waste per year. A general approaches to waste management incorporating in-plant waste minimization;
conversion to less hazardous forms and ultimate disposal is
briefly reviewed. Stabilization and solidification (S/S) as an option is described in some details and various
techniques are highlighted using different binder materials. Experimental data on S/S technique using petroleum sludge using ordinary Portland cement is presented. The sludge and binder characterization was conducted to investigate it chemical,physical and microstructure properties. Organic and inorganic component of the sludge are also quantified. A comparison of
solidified waste with rice husk ash (RHA) as replacement
material is also presented. Primary evaluations are made based on the compressive strength and leachability performance of the final solidified products.