(D) - Adding straw in the form of a fine granulate can cut costs between ten to 40 per cent in thermal recovery of sewage sludge. The additive raised methane yield and dry matter residue. The cost savings can be achieved by spending between EUR2 and EUR10 for the additive per cubic metre of slurry, reports Dr. Konrad ...
Straw additive improves sludge incineration
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