Driving Innovation in AD - Round 1

WRAP’s Driving Innovation in Anaerobic Digestion (DIAD) programme commenced in 2011 as part of the Defra AD Strategy and Action PlanThe DIAD programme seeks to improve the cost and optimise the efficiency of anaerobic digestion. 

This initial round aims to improve two specific areas of AD, namely:

  • the optimisation of processing and product manufacture at all scales of AD; and
  • the reduction of costs and complexity of small-scale AD.

To complete this programme of work, WRAP acts in partnership with the Small Business Research Initiative (SBRI) on both of the areas, as well as with the Royal Agricultural Society of England (RASE) on the small-scale AD projects.

Information on the feasibility studies and full-scale demonstration projects is available in the table below. Check back regularly for updates.

Small-scale and on-farm AD
CompanyDescriptionFeasibility studyFull-scale demonstration report 
EHV EngineeringCost-effective clean up and supply of biogas for small-scale ADRead report 
Marches Biogas

New and retrofitted AD plants from farm slurry stores

Read Report Read report
Evergreen Gas

Small-scale biogas upgrade for vehicle fuel 

Read report Read report
Biotech Mini biogas digester for self-assembly on farm  
Aardvark PowerQube, adding pasteurisation phase to current technology options  Read report
Green Farm Pre-treatment technology for farm-scale AD to enable wider feedstock options for farm-scale projects Read report 
Optimisation of AD
CompanyDescriptionFeasibility studyFull-scale demonstration report 
CWM Harry
Land Trust Ltd

Hub & Pod proposal to guarantee that the Animal By-Products Regulations (ABPR) standards are met by having smaller ABPR compliant Hubs located close to where the food waste arises. Feedstock is then distributed to multiple digesters (PODs) 

Read Report 
Cranfield UniversityImproving the production of methane through enriching the reactors CO2 contentRead report Read report
NeueAg Proposes to integrate Pyrolysis and the digestate from AD, subsequently producing additional renewable energy and a biochar for enhancing soilsRead report 
Clearfleau LimitedThe use of modular small-scale AD and associated membrane technology as a means to reduce the COD content found in the produced liquor fractionRead report Read report
Black & Veatch Ltd The selective solid recovery (SSR) of biomass from digestate for recirculation into the front-end of an anaerobic digester, leading to an increasing organic loading rate (OLR)Read report 
CPI Innovation Services Ltd The use of oscillatory baffle reactors (OBRs) which use an advanced mixing technology to improve throughput and digester performanceRead report 
Newcastle University The use of next generation sequencing (NGS) technology for the monitoring and diagnosis of anaerobic digesters Read report 
Sustainable Resource Solutions Ltd Application of a biosolar reactor to convert volatile fatty acids (VFA) into hydrogen gas with high efficiencyRead report 
AWS Burdens Environmental Ltd The pelleting and subsequent biomass burning of the solid, non-hydrolysed, non-readily digestible fraction of an AD feedstockRead report 
Queen's University Use of novel MIR-spectroscopy system for real-time monitoring of a biogas plant, which comes with a fully-automated cleaning and recallibration systemRead report