By www.jorsun.com editor - 04.08,2014
Flotation had its beginning in mineral processing and as such has been used for a long time in
solid/solid separation applications using stable froths to recover the mineral particles. Flotation can be incorporated with wastewater-treatment schemes in the following ways:
(1) As a unit process for removing contaminants not separated by other processes. Examples are
found in the removal of metal ions from dilute solutions of the ions and in the selective
separation of valuable ions;
(2) As a pre-treatment unit ahead of primary sedimentation, a rougher-flash unit;
(3) As a primary treatment unit ahead of secondary treatment units, such as bio-oxidation lagoons;
(4) As a unit process for sludge thickening.
Dissolved Air Floating
Lamella Clarifier
Sludge Scraper
Auxiliary equipment
