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Direct Burning is the oldest known method. The heat obtained by burning waste in incineration systems and the steam obtained in solid waste
fuel boilers are converted into electricity in steam turbines

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Pyrolysis is an energy conversion of the material, which is externally heated and decomposed in an oxygen-free environment, of all kinds of waste and other materials containing hydrocarbons. The
pyrolysis gas, which consists predominantly of hydrogen, carbon monoxide and methane, is cleaned and then converted to electricity or liquid fuels by means of gas engines or turbines.

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The purpose in the gasification process is to increase the efficiency of CO, H2, CH4. A different form of Pyrolysis , going to higher temperatures. When heating up to 1000 ° C, C reacts with water vapor or oxygen to produce CO and H2. The rise in pressure increases the efficiency of CH4. The rise in temperature increases the yield of CO and H2.


Image by Radowan Nakif Rehan

The amount of solid waste generated in parallel with increasing population, urbanization and industrialization is increasing rapidly and becoming an important problem for the cities.

Since the 1970's, regular storage and incineration technologies have been started to be used at the disposal of solid wastes. In 1990 and 2000, gasification and anaerobic digestion technologies began to take place in waste management systems.

Today, it is envisaged that the five main strategies for Integrated Waste Management (EAY) will be implemented with the following priority order:

„  Waste prevention and reduction (Reduce)

„  Reuse

„  Recycle

„  Recovery

„  Secure storage

Products that can be obtained from waste; Recoverable materials, compost and energy. It is one of the most studied topics on energy recovery.

Image by Alfonso Navarro