AN INVESTIGATION OF ECOFRIENDLY TECHNIQUES FOR REMOVING TOXIC CONTENT FROM EFFLUENT

Abstract

The goal of wastewater management is the protection of the environment in a manner newlinewith public health and economic concerns. The waste water discharge from industries are newlinemajor source of pollution and affect the ecosystem. Untreated wastewater generally newlinecontains high levels of organics, pathogenic microorganisms and toxic compounds newlineleading to environmental pollution. This waste water consisting of toxic organic materials newlinecannot be discharged into the environment. So, the waste water must be treated before newlinefinal disposal. newlineWith this precious aim, the study was carried out to treat the organic content of newlineindustrial effluent from chemical industries using thermal and catalytic liquid phase newlineoxidation process to treat the organic content of industrial effluent from chemical newlineindustries. newlineIn the present work, the reaction was conducted in a stainless steel autoclave newlinereactor over homogeneous and heterogeneous catalyst. The effects of operating newlineconditions likely temperature, pressure, initial concentration of organic compounds, newlineresidence time, oxygen concentration etc. were studied to evaluate organic removal from newlineeffluent. The stability and selectivity of the catalysts were also investigated. newlineThis study provides an eco-friendly approach to eliminate hazardous organic newlineeffluent and shows a significant potential to treat organic content of industrial effluent. newlineCatalytic liquid - phase oxidation seems to be a convenient process of destructive newlineoxidation of toxic and bio resistant organic pollutants of the water streams which are too newlinedilute to incinerate or too concentrated for biological treatment. newlineThe precious metal catalyst results indicated that the Chemical Oxygen Demand newline(COD) reduction of organic pollutant in industrial waste water was too high with liquidphase newlineoxidation techniques. Minimal COD was from the aqueous solution by liquidphase newlineoxidation in the absence of catalyst while approximately 98.71% chemical oxygen newlinedemand (COD) reduction was achieved by catalytic liquid- phase oxidation. newline