Energy from Waste: Difference between revisions

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[[Energy from Waste]] is commonly referred to by it's acronym [[EfW]].

==Overview==

[[EfW]] is the name often given to the thermal treatment of waste under controlled conditions in which energy is produced. This energy can either be converted to electricity to boost the National Grid and/or, at times when the EfW plant is a [[Combined Heat and Power]] facility, to provide heat in the form of hot water or steam for use by nearby developments. A plant facilitating the generation of electrical power and recovery of usable heat from a combustion process is termed a [[Combined Heat and Power]] ([[CHP]]) plant and it is more efficient than conventional power generation that is focused on power generation alone. Energy from Waste facilities can be used to generate [[Baseload Technologies | base load power]] as they produce a steady, reliable amount of energy but generally cannot be adjusted to meet peak demands. The development of an EfW plant is complex, with many inter-locking requirements for successful delivery<ref> WRAP, 2012. [http://www.wrap.org.uk/sites/files/wrap/O_And_EFW_Guidance_FULL.pdf EfW Development Guidance. Waste and Resources Action Programme.] </ref>.

[[EfW]] is the name often given to the thermal treatment of waste under controlled conditions in which energy is produced. This energy can either be converted to electricity to boost the National Grid and/or, at times when the EfW plant is a [[Combined Heat and Power]] facility, to provide heat in the form of hot water or steam for use by nearby developments. A plant facilitating the generation of electrical power and recovery of usable heat from a combustion process is termed a [[Combined Heat and Power]] ([[CHP]]) plant and it is more efficient than conventional power generation that is focused on power generation alone. [[Energy from Waste]] facilities can be used to generate [[Baseload Technologies | base load power]] as they produce a steady, reliable amount of energy but generally cannot be adjusted to meet peak demands. The development of an EfW plant is complex, with many inter-locking requirements for successful delivery<ref> WRAP, 2012. [http://www.wrap.org.uk/sites/files/wrap/O_And_EFW_Guidance_FULL.pdf EfW Development Guidance. Waste and Resources Action Programme.] </ref>.

In the most widely used EfW process, waste is burned on a moving grate. Air is introduced above and beneath the grate in carefully controlled amounts to ensure proper combustion. Good combustion means fewer emissions. The hot gases released are directed to a boiler to recover the heat. The combustion gases are then cleaned in several stages to strict standards set by the [[Industrial Emissions Directive]] and prior to that the [[Waste Incineration Directive]] ([[WID]]), which are monitored by the [[Environment Agency]] ([[EA]]) in England under the requirements of the [[Environmental Permitting (England and Wales) Regulations 2010]], as amended.

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 [[Energy from Waste]] is commonly referred to by it's acronym [[EfW]].
 ==Overview==
-[[EfW]] is the name often given to the thermal treatment of waste under controlled conditions in which energy is produced. This energy can either be converted to electricity to boost the National Grid and/or, at times when the EfW plant is a [[Combined Heat and Power]] facility, to provide heat in the form of hot water or steam for use by nearby developments. A plant facilitating the generation of electrical power and recovery of usable heat from a combustion process is termed a [[Combined Heat and Power]] ([[CHP]]) plant and it is more efficient than conventional power generation that is focused on power generation alone.  Energy from Waste facilities can be used to generate [[Baseload Technologies | base load power]] as they produce a steady, reliable amount of energy but generally cannot be adjusted to meet peak demands. The development of an EfW plant is complex, with many inter-locking requirements for successful delivery<ref> WRAP, 2012. [http://www.wrap.org.uk/sites/files/wrap/O_And_EFW_Guidance_FULL.pdf EfW Development Guidance. Waste and Resources Action Programme.] </ref>.
+[[EfW]] is the name often given to the thermal treatment of waste under controlled conditions in which energy is produced. This energy can either be converted to electricity to boost the National Grid and/or, at times when the EfW plant is a [[Combined Heat and Power]] facility, to provide heat in the form of hot water or steam for use by nearby developments. A plant facilitating the generation of electrical power and recovery of usable heat from a combustion process is termed a [[Combined Heat and Power]] ([[CHP]]) plant and it is more efficient than conventional power generation that is focused on power generation alone.  [[Energy from Waste]] facilities can be used to generate [[Baseload Technologies | base load power]] as they produce a steady, reliable amount of energy but generally cannot be adjusted to meet peak demands. The development of an EfW plant is complex, with many inter-locking requirements for successful delivery<ref> WRAP, 2012. [http://www.wrap.org.uk/sites/files/wrap/O_And_EFW_Guidance_FULL.pdf EfW Development Guidance. Waste and Resources Action Programme.] </ref>.
 In the most widely used EfW process, waste is burned on a moving grate. Air is introduced above and beneath the grate in carefully controlled amounts to ensure proper combustion. Good combustion means fewer emissions. The hot gases released are directed to a boiler to recover the heat. The combustion gases are then cleaned in several stages to strict standards set by the [[Industrial Emissions Directive]] and prior to that the [[Waste Incineration Directive]] ([[WID]]), which are monitored by the [[Environment Agency]] ([[EA]]) in England under the requirements of the [[Environmental Permitting (England and Wales) Regulations 2010]], as amended.