SUEZ Water - Water Technologies & Water

Coagulants and Flocculants for Water Treatment

Reduce sludge volume and improve water quality

Coagulation and flocculation water treatment chemicals are used to remove iron, suspended solids, organic color, and hardness from influent water.

In wastewater treatment these clarification aids help with the removal of other contaminants such as oil, phosphate and heavy metals. For raw water applications, polymer products help to eliminate the need for pH adjustment, decrease the load on demineralizers, increase filter throughout, and significantly reduce sludge volume.

Coagulants and Flocculants for Water Treatment

Reduce sludge volume and improve water quality

Coagulation and flocculation water treatment chemicals are used to remove iron, suspended solids, organic color, and hardness from influent water.

In wastewater treatment these clarification aids help with the removal of other contaminants such as oil, phosphate and heavy metals. For raw water applications, polymer products help to eliminate the need for pH adjustment, decrease the load on demineralizers, increase filter throughout, and significantly reduce sludge volume.

Coagulation and Flocculation Process

Suspended matter in raw water supplies is removed by various methods to provide a water suitable for domestic purposes and most industrial requirements. The suspended matter can consist of large solids, settable by gravity alone without any external aids, and nonsettleable material, often colloidal in nature. Removal is generally accomplished by coagulation or flocculation. The combination of these processes is referred to as clarification.

Featured Products

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 flocculants aids. SUEZ offers a comprehensive portfolio of coagulants, flocculants and custom-designed polymers that aid the clarification process.

KlarAid* Coagulants

KlarAid products are designed to function in a variety of industrial water and wastewater treatment application including use as a primary coagulant for removal of colloidal turbidity and color for raw water clarification, as a demulsifies to facilitate liquid solids separation in dissolved gas flotation units used for primary wastewater treatment and settling and filter aids used separately or in conjunction with organic flocculants. 

  • Easy to feed and ready to use solutions
  • Wide range of molecular weights, chemistries and charge densities
  • Promotes superior water clarity in difficult to treat water and wastewater
  • Highly efficient emulsion breakers for oil-in-water emulsions 

PolyFloc* Flocculants

PolyFloc flocculants are designed to bridge small particles together, enhancing floc formation to increase the settling velocity in clarification, or rise-rate in flotation application, and improve water drainage in thickening and dewatering applications. 

  • Cost-effective liquids and powders
  • Wide portfolio of clarification and dewater aids
  • NPE-free product
  • Range of molecular weights and charge (anionic, non-ionic and cationic)

Novus* Flocculants

Novus flocculants are designed to bridge small particles together, enhancing floc formation to increase the settling velocity in clarification, or rise-rate in flotation application, and improve water drainage in thickening and dewatering applications.

  • Cost-effective
  • NPE-free product
  • Available in a range of molecular weights, charge densities and structures
     

Features and Benefits

Coagulants and Flocculants Features & Benefits

SUEZ’s coagulants, flocculants, and custom-designed polymers, used together with an in-depth system audit, engineering application and operational recommendations provide the following benefits:

  • 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
  • Enhances performance of scale inhibitors
  • Improves process operations
  • Produces cleaner, safer drinking water

Coagulation Treatments

Coagulation Water Treatment

Coagulation water treatment is the process of destabilization by charge neutralization. Once neutralized, particle no longer repel each other and can be brought together. Coagulation is necessary for the removal of the colloidal-sized suspended matter.

Coagulation can be accomplished through the additional or inorganic salts of aluminum or iron. These inorganic salts neutralize the charge on the particles causing raw water turbidity, and also hydrolyze to form insoluble precipitates, which entrap particles. Coagulation can also be affected by the addition of water-soluble organic polymers with numerous ionized sites for particle charge neutralization. 

Flocculation Treatments

Flocculation Water Treatment

Flocculation water treatment is the process of bring together the destabilized, or “coagulated,” particles to form a larger agglomeration, or “floc.”

Flocculation, the agglomerations of destabilized particles into large particles, can be enhanced by the additional of high-molecular-weight, water-soluble organic polymers. These polymers increase floc size by charged site binding and by molecular bridging. 

*A trademark of SUEZ. May be registered in one or more countries.