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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

Schematic of intensification of AD by thermal hydrolysis, showing thickening, TH, AD and post-AD DW. Coversion of biogas be CHP engine included.
Blog

Pretty intense: the intensification of sewage sludge processes

Sludge intensification processes increase the sewage sludge solids concentration through thickening/dewatering or the biogas generation by digestion. But at what point do you stop extracting more water from the sludge or enhancing biogas production?

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