Flocculation and Polymer Dosing System Brochure

After forming small flocs in the coagulation step, flocculant is dosed in order to create bigger and more stable flocs. The flocculant is often called polymer or poly-electrolyte. Flocculant / poly-electrolyte must be prepared from a powder polymer or a fluid concentrated polymer. Polymer is a product that must be well mixed with water to prevent clot formation. After mixing with water a certain maturation time is necessary to "unfold" the polymer chain. Flocculant needs to "mature"  (30 to 45 minutes) before it can be dosed. Matured polymer is a sticky liquid. In smaller plants the production is matured in a "manual polymer mixing unit".  Usually the powder or liquid is mixed in a reaction tank 1 x per day. For larger installations we strongly recommend automatic polymer make up stations for both powder and liquid polymer applications.