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Paper Details

Waste Minimization in the Chemical Process Industries-A Review

L Nageswara Rao & G.Prabhakar*

Journal Title:Journal of Chemical, Biological and physical sciences

he use of non-renewable resources for fuel and feedstock (e.g. gas and soil), through the release of pollutants from various factories during production stage, to the disposal of ultimate final products that contain hazardous waste, each stage of the lifecycle of a product produced by the chemicals industry can have more negative impacts on man and environment. Now days as everyones attention are directed towards the chemical process industry, nowadays, a way of monitoring the environmental impact of its chemical processes and products is required. Chemical industry has the challenge of monitoring and reducing its emission to air, water and soil. Until recently, environmental solutions were in the form of end-of-pipe pollution control strategies, i.e., chemical, biological and physical treatment of terminal streams. The result has been waste treatment solutions that reduced the toxicity and volume of undesirable pollutants in industrial discharges. Although these pollution control strategies have resulted in reducing more negative environmental consequences of chemical processes, they focused on the symptoms and not on the root of the environmental problems. Therefore, at the end, they lacked costeffectiveness and sustainability. Increased scientific knowledge and public awareness over the effects of industrial activities on the environment and health has led chemical process industries to start implementing waste minimization programs, the Industrial Ecology concept, cleaner technologies and using tools such as green chemistry principles in order to reduce the environmental impact of their operations. In this paper mainly focusing on various techniques for the minimization of waste from process industries.