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Description
of the CWTC
Incineration
The incineration
system consists of waste storage/blending and an incineration
train. It is used for the destruction of organic materials
and cyanide wastes. Chemical wastes received at the CWTC which
require incineration are stored in tanks according to their
chemical make-ups. The wastes are blended to ensure the proper
feed to the incinerator.
The incineration
train is comprised of a Rotary Kiln, a Secondary Combustion
Chamber, a Waste Heat Recovery Boiler and an Air Pollution
Control System. The incinerator is designed to handle liquids
and sludges form the blend tanks and solids in burnable containers.
The Kiln and the Secondary Combustion Chamber operate between
700 and 1095 degrees Celsius. When wastes of special hazardous
nature (such as Polychlorinated Biphenyls) are incinerated,
the Secondary Combustion Chamber will be operated at above
1200 degrees Celsius. The combustion energy is recovered in
the Waste Heat boiler in the form of steam, which is used
as a heating medium throughout the centre. Contaminants that
remain in the gas phase after the Waste Heat Boiler is removed
in the spray dry absorber and fabric filter baghouses. The
air at the stack is continuously monitored to ensure stringent
emission requirements are met. The incinerator ash and scrubber
solids are sent to the stabilisation system for treatment
prior to off-site disposal.
| [Image of The Incinerator Stack] |
| Chemical Waste Treatment Centre |
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