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Belt dryers

Belt dryers comprise a conveyer belt which is fed with the dewatered sludge. The sludge solids are slowly transported by the belt through a stream of heated air, generally at 80-180 °C. They permit an additional element of process control to the usual parameters of sludge feeding rate and heat input, since the belt speed can be adjusted to change the dryer residence time.

Belt dryers related videos

Belt dryer for chicken manure processing, Dorset GM Source: dorsetgreenmachines / YouTube

Belt dryer for chicken manure processing, Dorset GM

Dorset GM's animation of a belt dryer for processing chicken manure. Once processed, the manure can be stored, or used as fuel or as an organic fertiliser.

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Belt dryers features and blogs

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Feature

Anaerobic digestion optimization through thermal hydrolysis pre-treatment

Pre-treatment of sludge by thermal hydrolysis upstream of anaerobic digestion is used to improve AD efficiency. A study looked at (pre-)commissioning data for a full-scale AD installation undergoing upgrading with TH to assess the basis for optimisation.

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