Different methods of solid waste management

The suitable treatment of plastic is the most important factor in waste plastic management. This is quite important from the energetic, environmental, and economic point of view. Even though the recycling rate for postconsumer plastics has increased in the recent years, this increase has been only meager coming to only around 1.5%. This increase in the recycling is due to the strict legal regulations and growing awareness. Different techniques for the waste plastic management are being followed today:

According to ASTM (American Society for Testing and Materials) D5033-00, plastic recycling methods are of four types on the basis of final products. The tertiary or chemical recycling degradation is one of the categories. From this method of chemical degradation, liquid fuels and high value added chemicals are produced by waste plastic fragments. One of tertiary recycling method is pyrolysis.

Traditional method of waste management includes land filling. Such a disposal of the waste to landfill is now strictly regulated legally. The regulations are expected to achieve a reduction of 35% in land filling over the period from 1995 to 2020. Also the rising cost and scarcity of land, the generation of explosive greenhouse gases (such as methane), a high volume to weight ratio of plastics, and the poor biodegradability of commonly used packaging polymers also make it an unattractive option

Information collected by : Sanjay Kumar Lodh

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