Praestol 144 emulsion flocculant can be replaced by Chinafloc C series
strong charge cationic polyelectrolyte based on acrylamideand a cationic acrylic acid derivative
Appearance: whitish liquid
Charge type: cationic
Density: approx. 1030 kg/m³
Viscosity (product): approx. 3000 mPa*s
Viscosity (1.0 % in deionized water): approx. 5000 mPa*s
Viscosity (0.3 % in deionized water): approx. 2000 mPa*s
Viscosity (1.0 % in tap water*): approx. 2500 mPa*s
Viscosity (0.3 % in tap water)*: approx. 100 mPa*s
pH-value (0.1 % in tap water*): approx. 7
Effective in pH-range: 1 - 10
Range of Application
This product is primarily used for dewatering of municipal and industrial sewage sludge (centrifuges, filter belt presses, chamber filter presses, etc.). It is specially suitable for applications where the formed flocs are subjected to high shearing forces.
Application and Dosage
The product is normally used as a highly diluted solution (0.2 to 0.5 %). For preparation of stock solutions (approx. 1.0 %) the original product is added to water while stirring. After a dissolving period of approx. 15 minutes (at a temperature of approx. 20 °C) the solution is mature and thus ready for use. Due to the varying properties of the sludge to be dewatered, the required dosages for a particular application can only be determined for a particular application by carrying out laboratory tests or industrial trials. The polymer consumption generally varies between approx. 3 and 10 kg polymer active substance per ton of sludge dry solids. In applications such as thickening or secondary sedimentation low values are found. Sludge which is difficult to dewater require significantly more polymer.