Bournemouth Waste To Energy Facility: Difference between revisions

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==Plant<ref name="Adden">Annual Performance Report 2020</ref>==
==Plant<ref name="Adden">Annual Performance Report 2020</ref>==
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The [[Bournemouth Waste To Energy Facility]] is permitted to process 950 kilograms per hour and is of pulse [[Grate|hearth]] design.


[[Healthcare Waste|Healthcare wastes]] are loaded mechanically direct from the wheeled bins used to deliver the [[Clinical Waste|waste]], into the hopper which provides the opportunity to visually inspect the [[clinical Waste|waste]] before it is tipped into the [[Incineration|incinerator]] charging hopper. Once inspection is complete, the [[Clinical Waste|waste]] is charged into the [[Incineration|incinerator]] where the [[Combustion|combustion]] process commences. The [[Clinical Waste|waste]] is burnt at a minimum temperature of 850°C, where it burns out to produce an [[Incinerator Bottom Ash|ash]]. The residues are then dropped into an [[Incinerator Bottom Ash|ash]] quench pit at the end of the process before being transferred into a skip.
The [[Flue Gas|flue gases]] from the [[Incineration|incineration]] process then pass through a secondary chamber, or afterburner, where any gaseous products of [[Combustion|combustion]] are burned out under oxygen rich conditions. This stage is designed to destroy any [[Wikipedia:Carbon monoxide|carbon monoxide]], [[wikipedia:Volatile organic compound|volatile organic compounds]], and [[Wikipedia:Dioxins and dioxin-like compounds|dioxins]] and [[Wikipedia:Furan|furans]] produced by the [[Combustion|combustion]] process.
The [[Flue Gas|flue gases]] are then cooled by directing them through a waste-heat boiler and [[wikipedia:Economizer economiser]], before they pass into the final, abatement section of the process. Powdered [[Wikipedia:Lime (material)|lime]] (calcium hydroxide) and powdered [[Wikipedia:Activated carbon|activated carbon]] are added to the [[Flue Gas|flue gases]] entering the abatement process to remove acid gases, [[Wikipedia:Heavy metals|heavy metals]] and residual [[Wikipedia:Dioxins and dioxin-like compounds|dioxins]] and [[Wikipedia:Furan|furans]] before discharge to atmosphere from the [[wikipedia:Chimney|stack]]. The [[Flue Gas|flue gases]] being discharged from the stack are continuously monitored for [[wikipedia:Hydrogen chloride|hydrogen chloride]], [[wikipedia:Sulfur dioxide|sulphur dioxide]], [[Wikipedia:Carbon monoxide|carbon monoxide]], [[wikipedia:Nitrogen oxide|oxides of nitrogen]], [[Wikipedia:particulate matter|particulate matter]] (dust), [[wikipedia:Volatile organic compound|volatile organic compounds]] and [[wikipedia:Oxygen|oxygen]].
The incineration process produces two residues; [[Incinerator Bottom Ash|bottom ash]] and [[Fly Ash|spent lime]].
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==References==
==References==