Veterinary Laboratories Agency: Difference between revisions
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===Waste Reception & Storage=== | ===Waste Reception & Storage=== | ||
Waste is collected around the site in bins. These are transported to the [[Incineration|incinerator]] where a bin lift loads the waste in to the [[Incineration|incinerator]] by rotating the bins 180 degrees, this ensures all the contents fall out of the bin in to the waste feed hopper. The waste is injected into the [[Incineration|furnace]] by a ram. Once inside the [[combustion]] chamber, rams move the waste through the [[grate]] at approximately 900°C thus promoting continuous mixing of the waste with the [[combustion]] air introduced from beneath the [[grate]] into the heart of the fire. In the secondary chamber the gas temperature is maintained above 850°C for 2 seconds. [[IBA|Ash]] from the grate is discharged into a bespoke skip. | Waste is collected around the site in bins. These are transported to the [[Incineration|incinerator]] where a bin lift loads the waste in to the [[Incineration|incinerator]] by rotating the bins 180 degrees, this ensures all the contents fall out of the bin in to the waste feed hopper. The waste is injected into the [[Incineration|furnace]] by a ram. Once inside the [[combustion]] chamber, rams move the waste through the [[grate]] at approximately 900°C thus promoting continuous mixing of the waste with the [[combustion]] air introduced from beneath the [[grate]] into the heart of the fire. In the secondary chamber the gas temperature is maintained above 850°C for 2 seconds. [[IBA|Ash]] from the grate is discharged into a bespoke skip. | ||
The project to build two modern units to replace the end of life existing units has been delayed from 2022 to 2024 and permission is to be sought to continue to run beyond the implementation of the new [[BREF]]<ref>Annual Report 2021</ref>. | |||
===Energy Recovery=== | ===Energy Recovery=== | ||
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===Gas Cleaning=== | ===Gas Cleaning=== | ||
Downstream of the boiler [[wikipedia:Sodium bicarbonate|bicarbonate soda]] is injected to neutralise acid gases. [[wikipedia:Activated carbon|Activated carbon]] is injected to adsorb any remaining [[wikipedia:Dioxins and dioxin-like compounds|dioxins]], [[wikipedia:Furan|furans]] and [[wikipedia:Heavy metals|heavy metals]]. Prior to release into the atmosphere the gases pass through a fabric filter where the [[APC Residues|air pollution control (APC)]] residues are removed from the gas stream; these are disposed of at a [[Hazardous Landfill|hazardous waste landfill]]. Once the gases have been cleaned they are discharged into the atmosphere via a [[wikipedia:Chimney|stack]]. | Downstream of the boiler [[wikipedia:Sodium bicarbonate|bicarbonate soda]] is injected to neutralise [[Flue Gas|acid gases]]. [[wikipedia:Activated carbon|Activated carbon]] is injected to adsorb any remaining [[wikipedia:Dioxins and dioxin-like compounds|dioxins]], [[wikipedia:Furan|furans]] and [[wikipedia:Heavy metals|heavy metals]]. Prior to release into the atmosphere the gases pass through a fabric filter where the [[APC Residues|air pollution control (APC)]] residues are removed from the gas stream; these are disposed of at a [[Hazardous Landfill|hazardous waste landfill]]. Once the gases have been cleaned they are discharged into the atmosphere via a [[wikipedia:Chimney|stack]]. | ||
==References== | ==References== | ||