Anaerobic Digestion: Difference between revisions

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The broad classifications by feedstock that can be used in AD are summarised in the table below including both waste and non-waste materials (with crops including maize, grass silage, energy beet and whole crop cereals) :

[[~~File:Summary Table of~~ AD ~~Descriptions~~.~~png~~|~~800px~~|~~left~~|~~Summary Table~~ of AD ~~Descriptions Primarily by Feedstock~~]]

~~<br clear='left'/>~~

{|class="wikitable"

!National Statistics!![[NNFCC]]!![[ADBA]]!!Feedstock

|-

|rowspan=5| Anaerobic Digestion||rowspan=3|Farm AD||rowspan=3|Agriculture||[[Agricultural Waste]] (incl. manures and slurries)

|-

|Crops (incl. silage and whole crops)

|-

|[[Food Waste]] ([[MSW]] and [[Commercial Waste]] sources)

|-

|rowspan=2|Food AD||rowspace=1|MSW/Commercial Waste||[[Food Waste]] ([[MSW]] and [[Commercial Waste]] sources)

|-

|Industrial||[[Food Waste]] (at the origin of the waste, incl. [[Industrial Waste]])

|-

|Sewage Sludge Digestion||Sewage Sludge AD||Sewage Sludge|| [[Sewage Sludge]] (at water treatment site)

|}

This classification can be further divided by the nature of the [[Food Waste]] (i.e. [[Animal By-product Material|ABPR]] and non-[[Animal By-product Material|ABPR]] material) - where the process utilises [[Animal By-product Material|ABPR]] materials, it must comply with the [[Animal By-Products (Enforcement) (England) Regulations 2011]] requirements and some Agricultural plants, for example, only utilise non-[[Animal By-product Material|ABPR]] material so as to avoid the need to comply with these requirements. Additionally, the three different feedstocks in the 'Agricultural' classification can be co-digested in different combinations to optimise plant productivity and yield of [[biogas]] and can be talked about in those terms.[[Sewage Sludge]] doesn't tend to be blended with other materials and tends to be a dedicated AD solution in its own right - primarily as it becomes impossible to to deliver [[End of Waste Criteria|End of Waste]] [[digestate]] with the introduction of [[Sewage Sludge]] as an input feedstock.

===Definition by Output===

The broad classifications by output are summarised in the table below:

The broad classifications by output are summarised in the table below (primarily by [[Ofgem]], but also National Statistics and [[Department of Transport]]):

{|class="wikitable"

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==Number of UK Sites==

At December 2018 National Statistics reported the following key statistics for the number of AD sites generating electricity (extract from table 6F)<ref>[https://www.gov.uk/government/statistics/~~renewable-sources-of-energy-chapter-6-~~digest-of-~~united-kingdom~~-energy-statistics-dukes~~:DUKES~~ 2019 ~~Chapter 6:Renewable Sources~~ of Energy]</ref>.

At December 2018 National Statistics reported the following key statistics for the number of AD sites generating electricity (extract from table 6F)<ref>[https://www.gov.uk/government/statistics/digest-of-uk-energy-statistics-dukes-2019 Digest of UK Energy Statistics (DUKES) 2019]</ref>.

{| class="wikitable"

|-

@@ Line 20: / Line 20: @@
 The broad classifications by feedstock that can be used in AD are summarised in the table below including both waste and non-waste materials (with crops including maize, grass silage, energy beet and whole crop cereals) :
-[[File:Summary Table of AD Descriptions.png|800px|left|Summary Table of AD Descriptions Primarily by Feedstock]]
-<br clear='left'/>
+{|class="wikitable"
+!National Statistics!![[NNFCC]]!![[ADBA]]!!Feedstock
+|-
+|rowspan=5| Anaerobic Digestion||rowspan=3|Farm AD||rowspan=3|Agriculture||[[Agricultural Waste]] (incl. manures and slurries)
+|-
+|Crops (incl. silage and whole crops)
+|-
+|[[Food Waste]] ([[MSW]] and [[Commercial Waste]] sources)
+|-
+|rowspan=2|Food AD||rowspace=1|MSW/Commercial Waste||[[Food Waste]] ([[MSW]] and [[Commercial Waste]] sources)
+|-
+|Industrial||[[Food Waste]] (at the origin of the waste, incl. [[Industrial Waste]])
+|-
+|Sewage Sludge Digestion||Sewage Sludge AD||Sewage Sludge|| [[Sewage Sludge]] (at water treatment site)
+|}
 This classification can be further divided by the nature of the [[Food Waste]] (i.e. [[Animal By-product Material|ABPR]] and non-[[Animal By-product Material|ABPR]] material) - where the process utilises [[Animal By-product Material|ABPR]] materials, it must comply with the [[Animal By-Products (Enforcement) (England) Regulations 2011]] requirements and some Agricultural plants, for example, only utilise non-[[Animal By-product Material|ABPR]] material so as to avoid the need to comply with these requirements. Additionally, the three different feedstocks in the 'Agricultural' classification can be co-digested in different combinations to optimise plant productivity and yield of [[biogas]] and can be talked about in those terms.[[Sewage Sludge]] doesn't tend to be blended with other materials and tends to be a dedicated AD solution in its own right - primarily as it becomes impossible to to deliver [[End of Waste Criteria|End of Waste]] [[digestate]] with the introduction of [[Sewage Sludge]] as an input feedstock.
 ===Definition by Output===
-The broad classifications by output are summarised in the table below:
+The broad classifications by output are summarised in the table below (primarily by [[Ofgem]], but also National Statistics and [[Department of Transport]]):
 {|class="wikitable"
@@ Line 103: / Line 117: @@
 ==Number of UK Sites==
-At December 2018 National Statistics reported the following key statistics for the number of AD sites generating electricity (extract from table 6F)<ref>[https://www.gov.uk/government/statistics/renewable-sources-of-energy-chapter-6-digest-of-united-kingdom-energy-statistics-dukes:DUKES 2019 Chapter 6:Renewable Sources of Energy]</ref>.
+At December 2018 National Statistics reported the following key statistics for the number of AD sites generating electricity (extract from table 6F)<ref>[https://www.gov.uk/government/statistics/digest-of-uk-energy-statistics-dukes-2019 Digest of UK Energy Statistics (DUKES) 2019]</ref>.
 {| class="wikitable"
 |-