And Confrence Paper On ( Enviornment ) E – Waste Management

نویسنده

  • Jalal Uddin
چکیده

The electronic industry is the world’s largest and fastest growing manufacturing industry in the world. Discarded electronic and electrical equipment with all of their peripherals at the end of life is termed ewaste. The quantity of c-waste generated in developed countries equals 1% of total solid waste on an average and is expected to grow to 2% by 2011 and is one of the fastest growing waste streams.E-waste consists of ferrous and non ferrous metals, plastic, glass, ceramics, rubber etc. E-waste is valuable source for secondary raw material but harmful if treated and discarded improperly as it contains many toxic components such as lead, cadmium, mercury, polychiorinated biphenlys etc. The presence of lead, mercury, arsenic, cadmium, selenium and hexavalent chromium and flame retardants beyond threshold quantities in e-waste classifies them as hazardous wastes. Rather than recycle the c-waste generated, the developed countries are finding easy way out of the problem by exporting them to developing economies. Recycling c-waste in a crude manner, as is done now will lead environmental pollution. A review of the study conducted of uncontrolled dumping and crude recycling of cwaste reveals the gravity of the problem. Technologies are suggested for environmentally sound management of c-waste. Legislation is the need of the hour for enforcing environmentally sound management. ” Today’s gadgets are tomorrows E-waste.” 95 percent of electronic waste is recyclable. However, unregulated recycling can cause more harm to the environment than landfilling. While many companies, have safe and effective recycling programs, the majority of recycling companies export some percentage of their electronic waste to China or poor countries in Africa, where the waste is “recycled,” or destroyed and stripped of its valuable metals. Though this seems like a good thing on the surface, because components are being repurposed, unregulated recycling centers burn or dissolve the plastic components to release the precious metals: a process that releases environmental contaminants into the air, land, and water that would otherwise remain trapped and inert in landfills. The major portion of the c-waste generated domestically as well as illegally imported are recycled in crude manner leading to pollution of the environment. Lack of legislation in our country at present is aiding this hazardous form of recycling. Therefore there is urgent need to frame and implement rules for regulating this waste and to find environmentally sound, economically viable methods for recycling and disposing of this necessary evil. The necessity of environmentally sound management of c-waste is brought out with the help of a case study of uncontrolled dumping of c-waste. we have collected data of disposed materials percentage in Mahbubnagar and which is causing harm to environment and for reducing this we have explained some techniques from which it can be controlled without causing any effects to environment.

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تاریخ انتشار 2012