Merits of Thermal proccessing, W2E merits and good combustion principles.

Thermal Processing – Merits

• WTE Plants are Efficient but capital intensive.
• Will be operated with advanced Distributed Control Systems in fully automatic mode
• Advanced Flue Gas Treatmen technologies exist and we adopt these technologies

W2E Merits

• Reduction of landfill by 25 % by weight.
• Renewable energy

– 500/600 TPD, Approximately 8 MW of Power

• CDM benefits over conventional composting

– (Approx ) 1.1 Mn CER ( over 10 Years for 10 MW)

• Residual Ash can be explored for alternate use – resulting in possible conservation of land for landfill
• Address concerns for socio-politial challlenges.

Good combustion principles

• Residence time for the combustion product of 2.5 seconds at > 850 Deg C for thermal destruction of fugitive emissions.
• Excess Oxygen atmosphere in furnace with balanced draft.
• Back End temp of Flue Gas is 210-220 Deg C for the effectiveness of the Flue Gas Treatment Scheme.
• Preheating the combustion air to accomplish in-situ drying of waste in the drying zone in the furnace

Salient Techhnical Features –W2E

• Reverse acting Reciprocating grate with inclination to allow sliding of waste on its own is selected.
• Six times the area than the travelling grate of previous plants
• Ram Feeders to push the waste positively on to the combustion zone
• Grabs to mix the waste to homogenize and feeding rather than overhead silo mode of storage to avoid bridging