Driving Innovation in AD - Round 2

The second phase of the Driving Innovation in Anaerobic Digestion (DIAD) programme launched in 2012. WRAP’s DIAD programme aims to improve the cost and optimise the efficiency of anaerobic digestion. 

For Round 2, applicants were invited to develop technology-enabled solutions that addressed one or more of the following work streams:

  1. Scaling technology – taking technologies at their current scale and adapting them to meet the demands of smaller (or larger) AD facilities. Proposals could cover any element of AD processing from waste reception through to gas and digestate utilisation.
  2. Processing and enhancing digestate – technologies which reduce the cost of digestate management or increase the value of the digestate in economic terms.
  3. Proof of market of AD technologies – technologies, solutions and methods which are at the end of the research and development (R&D) stage but may need further work to establish proof of market before moving through feasibility trials and full-scale demonstration. 

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

Scaling technology




Feasibility Study

Full-scale demonstration report


Micro-scale AD

Read report



Cellulosic fibre cleaning for high throughput AD

Read report



Small farm-scale dry AD for farm yard manures

Read report


NNFCC and CNG Services Ltd.

Biogas networks in rural areas

Read report


Safe Training Systems

The development of low cost, installed systems to monitor siloxanes in biogas

Read report


Read report

Farm Gas Power

Small Farm De-gritting and SIDOM Conditioning Digester

Read report


Processing and enhancing digestate 

CompanyDescriptionFeasibility studyFull-scale demonstration report


Granular fertiliser from anaerobic digestate liquorRead report  

Harper Adams Energy

Recycling nutrients and water from digestate 


Proof of market, AD technologies
CompanyDescriptionFeasibility studyFull-scale demonstration report
Community by DesignOptimising community urban micro AD networksRead report  Read report
Perceptive Engineering Optimisation of small-scale AD using Intelligent Predictive ControlRead report  Read report
CNG ServicesLow cost propane blendingRead report  Read report
CWM Harry Land TrustEfficient use of AD by-products (heat and CO2) to power a profitable phosphate recycling technologyRead report