WTE in China

WTE in China

Posted on July 15, 2012 by DrRossH in Landfills and Disposal

 

Combustion of MSW on a moving grate

WTE in China – Waste Mangagement World.

Of the estimated one billion tons (907 million tonnes) of global ‘post-recycling’ MSW, close to 200 million tons (181 million tonnes) are processed in Waste-to-Energy (WTE) plants that recover the energy content of waste in the form of electricity or heat. The dominant WTE technology involves combustion of MSW on an inclined or horizontal grate. There are over 500 WTE plants of this type operating in 35 countries.

 

Most of the global urban MSW, i.e. over 800 million tons (725 million tonnes), is landfilled. The Earth Engineering Center of Columbia University has estimated that one square metre (about 10 square feet) is used up, forever, for every ten tons (nine tonnes) of MSW landfilled. True sustainable development requires that only inorganic residues be landfilled, as is already the practice in several countries. However, this would require us to considerably increase the present global WTE capacity of about 200 million tons (181 million tonnes) and this is a very costly proposition, especially for developing nations.

 

Obviously, the need is greatest in large nations with rapidly growing cities, such as China and India, where existing dump sites are overfilled.