Influent Water System
Removal of suspended solids in water is generally achieved through the use of clarification and/or filtration.
From Strokes Law theory, there are 3 steps to make particle has appropriate properties for fast settling and easy to be removed.
Step 1: Coagulation-Fast mix is the process of destabilization by charge neutralization. Once neutralized, particles no longer repel each other and can be brought together.
Coagulation is necessary for the removal of the colloidal-sized suspended matter.
Common coagulant chemical in market eg. Aluminum sulfate (Alum) and Polyaluminum chloride (PAC)
Step 2: Flocculation-Slow mix is the process of bringing together the destabilized, or "coagulated," particles to form a larger agglomeration, or "floc."
Step 3: Sedimentation refers to the physical removal from suspension, or settling, that occurs once the particles have been coagulated and flocculated. Sedimentation or subsidence alone, without prior coagulation, results in the removal of only relatively coarse suspended solids.
Types of Coagulants and Flocculants
The coagulation and flocculation process can occur naturally in some cases or be enhanced by the addition of coagulant and flocculant aids. PCKem offers a comprehensive portfolio of coagulants, flocculants and custom-designed polymers that aid the flocculation and coagulation process:
KlarAid* Coagulants – Highly charged inorganic, organic and custom blended coagulants for clarification of industrial water and wastewater.
PolyFloc* Flocculants – High molecular weight clarification and dewatering polymers.
Novus* Flocculants – Proprietary high molecular weight clarification and dewatering.
Benefits of our coagulant and flocculant chemicals are
Reduces fouling by solids, organics, microbiological materials and colloids
Increases settling rates
Improves filter performance
Reduces sludge volume
Improves efficiency in boiler and cooling systems
Improves the performance of scale inhibitors
Improves process operations
Produces cleaner, safer drinking water