Your web browser is out of date.

Update your browser for better security, speed and to get the best experience on this website.

Update your browser

Fluidised bed dryers

The fluidised-bed dryer employs a fixed vertical vessel with a perforated base through which hot gases (air or steam) pass. Sludge particles entering the vessel are gently agitated in a stream of pre-heated gas, so that the gas stream is used for both heating and mixing. Fluidised bed dryers require operation with backmixing of part of the dried sludge product stream with the feed to prevent the sludge going through the sticky phase.

Fluidised bed dryers related videos

Fluidised bed dryer, Andritz Source: ANDRITZ GROUP / YouTube

Fluidised bed dryer, Andritz

Video to demonstrate sludge drying in a fluidized bed dryer.

SP advertise side banner 2 936x520
MBR Site CAS process side banner 936x520
MBR Site general side banner 936x520

Fluidised bed dryers features and blogs

Fig. 4.  SP filtrate and acidified sludge samples
Feature

Phosphorus recovery by sludge acidification and dewatering

A pilot-scale Danish study of phosphorus extraction from acidified anaerobic and aerobic sludge samples has revealed removal to be more effective from anaerobic sludges, even though the digested sludge alkalinity increases the total acid demand.

Read article

More Fluidised bed dryers topics…

More process and operation topics…