What Are Flocculants And Coagulants For Wastewater Treatment?

Source-To-Discharge Treatment Solutions involved the use of high purity, high quality Flocculants and Coagulants to treat the hardest wastewater situations

High Quality Dewatering Flocculants and Coagulants

What Is A Coagulant And Flocculant?

Flocculants and Coagulants for Wastewater are used in every industrial water treatment process. Wastewater slurries exhibit a range of particle sizes and charge requirements. Optimum Coagulant and Flocculant treatment are used to separate solids from wastewater and requires specific dosages.  This is achieved and overall performance improved by matching molecular weight and charge to the unique characteristics of the slurry. Our high quality FlocREADY flocculants and coagulants are designed to improve your processes and lower your overall cost in a wide range of mineral processing applications. We offer high-quality dry-powder flocculants that exhibit consistent quality and high active polymer content.

View our Flocculants and Coagulants

Our proprietary sieving process serves to eliminate many dust fines and reduce human exposure and slippery residue in the makedown area. Together with our dry polymer process, which achieves high molecular weights, this often results in a cost savings. Our portfolio also includes high-performance emulsion flocculants. Our proprietary emulsion breaker and carrier systems result in reduced polymer emulsion settling rates and low formation of insoluble material.

  • Specifically formulated to enhance liquid/solid separation (How Industrial Wastewater Pretreatment Works?).
  • Our experienced and highly trained chemists and technicians can create an optimized chemistry plan that ensures your system works at peak efficiency.
  • Without this guidance you run the risk of damaging your equipment by using the wrong chemicals, spending too much money on wasted chemicals, paying costly non-compliance fees, and running up higher energy bills because your system is operating inefficiently.

How Coagulants and Flocculants Work?


For any wastewater pretreatment program that deals with suspended solids, coagulants can consolidate suspended contaminants for easy removal. Chemical coagulants used in industrial wastewater pretreatment fall into one of two categories: organic and inorganic coagulants.

Inorganic coagulants are cost-effective and can be used in a wider variety of applications. They are especially effective on any raw water with low turbidity, an application not fit for organic coagulants. When added to water, inorganic coagulants from aluminum or iron precipitates that absorb the water’s impurities, thus cleaning it. This is referred to as the “sweep-floc” mechanism. While effective, this process adds to the overall sludge volume that needs to be removed from the water. Frequently used inorganic coagulants include aluminum sulfate, aluminum chloride, and ferric sulfate.

Organic coagulants offer the advantages of lower dosages, lower volumes of produced sludge, and no effect on the pH of the treated water. Examples of common organic coagulants include polyamines and polyDADMACs, as well as melamine formaldehydes and tannins.


Used in a wide range of industries and applications, flocculants help to remove suspended solids from wastewater by aggregating contaminants into flakes or “flocs” that float to the surface of the water or settle at the bottom. They can also be used for lime softening, sludge thickening, and solids dehydration. Natural or mineral flocculants include activated silica and polysaccharides, while synthetic flocculants are most commonly based on polyacrylamide.

Depending on the charge and chemical composition of your wastewater, flocculants can either be used on their own or in combination with coagulants. Flocculants differ from coagulants in that they are often polymers, whereas coagulants are typically salts. They can range in molecular size (weight) and charge density (% of the molecule with either anionic or cationic charges), which is used to “balance” the charge of the particles in the water and cause them to come together and dewater. Generally speaking, anionic flocculants are used to catch mineral particles while cationic flocculants can capture organic particles.

At ChemREADY, our high-quality FlocREADY line of flocculants and coagulants are designed to improve wastewater treatment and lower overall costs in a wide range of mineral processing applications. We offer a wide range of cationic, anionic, and non-ionic flocculants, we well as organic and inorganic coagulants for all of your chemical treatment needs.  You can also learn more about our equipment partner for use in dewatering after pretreatment here: Matec.

Flocculant Products


Cationic flocculants used for large and small volume water treatment settle solids.


High performance, anionic flocculant based on a high molecular weight emulsion polyacrylamides scientifically formulated for use as a flocculant in effluent and wastewater treatment applications


Organic coagulants consist in liquid chemicals which have a high coagulant efficiency mainly focused on its polymer structure and on the strength of the cationic charges.


Inorganic coagulants are both cost-effective and applicable for a broad variety of water and wastewater. Inorganic coagulants are particularly effective on raw water with low turbidity and will often treat this type of water when organic coagulants cannot.

Flocculant Applications

How to Control Alkalinity and pH Changes Resistance
Control Alkalinity and pH Changes: Our pond, pH control, and caustic chemicals allow you to easily comply with water quality standards in situations that require implementing chemical stability and neutralization of bases and acids.
Conveyance & Sewer System Wastewater Odor Control
Reduce or eliminate odor-causing gas emissions from wastewater, dissolving FOG blankets and reducing corrosion to pumps and infrastructure.
Phosphorus Removal
ChemREADY has been working with industry partners to improve and reduce cost of Phosphorus Reduction treatments to meet receiving water requirements.
Wastewater Treatment for Metals Recovery and Non-Metals
Wastewater Treatment for Metals Recovery: Mechanical and chemical solutions engineered to eliminate site ‘run-off’ risks and improve overall marketability of your product.
Commercial & Industrial Wastewater Treatment
ChemREADY provides a single source for chemical and equipment needs with technical expertise to ensure your water is treated efficiently, effectively and within budget.