The problem
Sulphate in vinasse feeds the bacteria that produce hydrogen sulphide, which inhibits digestion, corrodes equipment and lowers biogas quality.
Benefits
- Less hydrogen sulphide
- Protected digesters
- More biogas to displace fuel oil
Application
Removes sulphate from vinasse on its way to the digesters.
Where it sits in the distillery
Danu Water product
Scroll sideways to see the whole process.
Shown as a standalone job for clarity. Where and how much water is taken and returned is designed around each site, and one unit may do several jobs. Powered by Danu Water's adaptive electromembrane separation.
More for distilling
Application
Water and potassium recovery
Recovers reuse water and a potassium fertiliser product from digested vinasse.
View detailsApplication
More backset to fermentation
Removes salts from backset so more dunder can return to fermentation, saving dilution water.
View detailsApplication
Cooling blowdown recovery
Desalts cooling tower blowdown and returns it to the tower, cutting make-up water.
View details
Could Sulphate control for digesters work on your site?
Tell us about your water and we will design around your process.