Clay is a useful raw material for most of industrial manufacturing processes because of the unique physico-chemical properties and chemical compositions of such clays. The analysis of chemical compositions of some clay is an important strategy that related with the usages of such clay for various industrial purposes. In the existing research there were expected to test and analyze the chemical compositions of three different clay types that available in various locations in Sri Lanka using the X-ray fluorescence (XRF) technique. The clay samples were collected carefully from the available locations and stored well. The clay samples were labeled as anthill clay, brick clay and roof tile clay based on the applications and origins of such clays. A sufficient portion from each clay sample was selected and those samples were oven dried for 24hours under the temperature 110°C and sent for the X-ray fluorescence (XRF) analysis. As the results for the investigations, there were observed the elements of Fe, Ti, Ba and K in the amounts of 82.08%, 4.84%, 0.79% and 12.28% from anthill clay, Fe, Ti, Ca and Ba in the percentages of 84.38%, 5.92%, 7.56% and 2.14% in brick clay and Fe, Ti, Ba, Zr and K in the percentages of 75.72%, 2.95%, 5.30%, 3.36% and 12.67% from roof tile clay.

Human activities generate a series of waste increasingly more complex and difficult to manage (through the containment, inertization or destruction). Particular attention must be paid to hazardous waste with a high risk of environmental pollution but especially for infestation to the human generator. In this context, we considered the possibility of integrated waste management resulted from the pharmaceutical industry, which is frequently mishandled and ends (reach) in the environment. This paper proposes a method for neutralizing some hazardous pharmaceutical waste, using electrochemical methods for inactivation, respectively an electrochemical reactor with asymmetric current densities. The results obtained in the laboratory for four of these substances leads to the generation of viable solutions that can be used in practice.