Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of MRW, please enable cookies in your browser

We'll assume we have your consent to use cookies, so you won't need to log in each time you visit our site.
Learn more

Digestate has volume cut

HRS Heat Exchangers has won an order for its digestate concentration system (DCS) from Willen Biogas at an anaerobic digestion plant (AD) currently being constructed at Cattlegate Farm in Enfield, north London, which intends to take in the city’s food waste.

Farming business D Williams grows arable crops and herbs on more than 2,000 acres. It expects to save more than £90,000 a year in fertiliser costs by using the compost and digestate.

The DCS is a key part of utilising the nutrient-rich digestate effectively because it reduces the volumes produced while maintaining nutrient concentration. It reuses as much heat as possible, improving process efficiency of the entire AD plant.

HRS will provide a three-stage concentration system to take the liquid digestate, which has a low dry solid content, and increase the dry matter from around 4% to 9%. This cuts the overall volume of digestate produced, meaning that up to 60% less storage capacity is required and it can be applied with fewer operations.  

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Links may be included in your comments but HTML is not permitted.