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

Reagent dosing

Chemical conditioning through reagent dosing is designed to coalesce (or agglomerate) the smaller sludge particles (1−10 µm) to produce larger ones, and to reduce the colloidal (the sub-0.1 µm particle/macromolecular size range) content of the particulate matter. This then increases both the particle sedimentation rate and the permeability of the cake − the solids sediment formed from the particles. In doing so, the efficiency of the downstream thickening and dewatering processes is increased.

Advert
Advert
Advert

Reagent dosing 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 Reagent dosing topics…

More process and operation topics…