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

Belt filter presses

A belt filter press (BFP) combines drainage and mechanical pressure sequentially, ultimately providing sludge dewatering by pressing the sludge between two revolving permeable belts to squeeze out the water from the sludge. This produces a cake (the dewatered product) having a dry solids (DS) content of 30% or more in the case of primary sludge. This is to be distinguished from the lower-energy gravity belt thickener process which achieves a maximum DS content of ~10%.

Belt filter presses related videos

Sludge solids separation theory Source: Judd Water & Wastewater Consultants /

Sludge solids separation theory

Sludge solids separation theory − a brief introduction to the theories around sludge sedimentation, cake filtration and cake compression.

Belt filter presses features and blogs

Blog eu biosolids disposal header

Biosolids vs sewage sludge

Biosolids are usually considered to be the useful fraction of the sewage sludge. They are generally higher in solids concentration and lower in pathogen content, having gone through a stabilisation process such as chemical dosing, digestion and/or drying.

Read article

More Belt filter presses topics…

More process and operation topics…