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Polyacrylamide / cationic polyacrylamide of Praestol 857 BS can be replaced by Chinafloc C5008
cationic polyacrylamide of Praestol 857 BS can be replaced by Chinafloc C5008
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PRAESTOL 857 BS is used mainly for waste water purification, as well as for thickening and dewatering of municipal and industrial sewage sludges (centrifuges, screen belt pres-ses, chamber filter presses). The product is specially suitable for applications where the formed flocs are subject to high shear forces.
it can be replaced by Chinafloc C5008 totally
The mode of action of cationic PRAESTOL products is based essentially on ion exchange between the electrical charges along the polymer chain present in aqueous solution and the surface charges on the suspended solid particles. The particle surfaces are destabilized, thus bringing about coagulation or flocculation.
Application/Dosage
PRAESTOL 857 BS is used as a dilute solution (approx. 0.1 %). For preparation of stock solutions (approx. 0.5 %) the original product is added to water with uniform stirring. After a dissolving period of approx. 60 minutes (at a temperature of ³ 15 °C), the solution is mature and is thus ready for use. Owing to the very variable properties of the sludges to be dewatered, the required addition quantities for a particular application can only be determined by carrying out laboratory tests and industrial trials.
Experience has shown that in mechanical sludge dewatering the quantities required in order to achieve a high machine throughput and discharge water free of settleable materials is between 2 and 6 kg polymer per ton of dry solids in the sludge. When used as a sedimentation accelerator or clarifying agent (in static sedimentation processes), only a few grams of polymer per cubic metre of slurry to be clarified are required.
Working Safety and Accident Prevention
In case of spillage/leakage:
Caution: Severe skidding hazard in combination with water and moisture. Keep public away from the danger area! Completely remove/reload the dry product. Completely remove and store moist/liquid product with sand or binders. Repeat this procedure as required. Remove minor
residue carefully from the road by spraying with a strong water jet.
Safety Measures: Prevent dust development in case of dry product! Avoid contact with the eyes! Avoid extended contact with the skin! Rinse off the product after handling/touching!
Storage
High molecular flocculating agents, such as PRAESTOL 857 BS are all basically sensitive to the effect of moisture, for example in the form of condensation water, water spray or splashes and
Water hazard class: 2 (self classification)
atmospheric moisture. Contact with water (drops) can cause localized lump formation. The product must therefore be stored in dry, closed containers and protected from moisture.
Chinafloc—A leading polymer manufacturer of China China
Cationic polyacrylamide
•Chinafloc C0510
•Chinafloc C1312
•Chinafloc C2012
•Chinafloc C3012
•Chinafloc C4008
•Chinafloc C5008
•Chinafloc C6006
•Chinafloc C7512
•Chinafloc C8008
Anionic polyacrylamide
•Chinafloc A2520
•Chinafloc A2525
•Chinafloc A2015
•Chinafloc A3016
•Chinafloc A3020
•Chinafloc A3027
•Chinafloc A1216
•Chinafloc A3019
•Chinafloc A3018
•Chinafloc A2818
•Chinafloc A1512
•Chinafloc A5018
•Chinafloc A1815
•Chinafloc A1512
•Chinafloc A2517
•Chinafloc A3517
Nonionic
•Chinafloc N0510
•Chinafloc N0310
•Chinafloc N0305
Applications
Water treatment (industrial grade and PWG)
Mineral processing
Oil and Gas(drilling ,EOR,DRA,fracturing )
Paper making
Construction bored pile
Choosing Chinafloc is your best choice !
Info@chinafloc.com
www.chinafloc.com
971_small.jpg "The cationic polyacrylamide (Zetag 7645) can be replaced by the CHINAFLOC series")