Strategic Action Plan - International Environmental Technology Centre
Strategic Action Plan - International Environmental Technology Centre
Strategic Action Plan - International Environmental Technology Centre
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<strong>Strategic</strong> <strong>Action</strong> <strong>Plan</strong> Report<br />
Processed involved in Refuse Derived Fuel process<br />
• Preliminary Liberation<br />
• Size Screening<br />
• Magnetic Separation<br />
• Coarse Shredding<br />
• Refining separation<br />
• End market for RDF<br />
RDF can be used in variety of ways to produce electricity. It can be used alongside traditional sources of fuel<br />
in coal power plants.RDF can be used in the cement kiln industry. RDF can also be fed into pyrolysis plants<br />
and where RDF is capable of being combusted cleanly or in compliance with the Kyoto Protocol, RDF can<br />
provide a funding source where unused carbon credits are sold on the open market via carbon exchange.<br />
Advantages of Refuse Derived <strong>Technology</strong><br />
• It is an integrated technology which offers front end recycling activity.<br />
• Organic fraction is also separated to be treated by composting/ biomethanation.<br />
• Lower levels of heavy metals in RDF.<br />
• RDF can be co-fired along with other fuels in industries for boilers.<br />
Weaknesses<br />
• The processor requires having secure market for RDF.<br />
• The competition with other fuels.<br />
• The processing involves high electrical power consumption and maintenance.<br />
• Fuel production space is required.<br />
• RDF can cause more damage to boilers and pipework than other fuels. 4<br />
5.4.2 Pyrolysis / Thermal Gasification<br />
The most prevalent amongst the advanced treatment methods for municipal solid waste is Pyrolysis and<br />
Gasification Process.<br />
Within the last few years, gasification technologies have been developed that use plastic-rich waste as a feed.<br />
In a plant in Germany such a technology - on large scale - converts plastic waste via producer gas into<br />
methanol.<br />
Gasification relies on chemical processes at elevated temperatures >700°C, contrary to biological processes<br />
such as anaerobic digestion that produce biogas. Breakdown of hydrocarbons into syngas is done by carefully<br />
controlling the amount of oxygen present while heating the hydrocarbons to extreme temperatures.<br />
4 http://www.waste-technology.co.uk/RDF/rdf.html<br />
ISWM <strong>Plan</strong> for Pune 105
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