Water Treatment Coagulant- Coagulant Chemicals

Types of Coagulants

High-performance coagulants for every application — from drinking water to industrial wastewater.

Aluminum Sulphate

High-performance coagulant — available in flakes, powder, and granules.

Aluminum Chloride

Strong Lewis acid catalyst — offered in powder, granules, and flakes.

Aluminum Chlorohydrate(ACH)

Superior coagulant for clarity — liquid and solid grades.

Aluminium Potassium Sulphate

 Multi-purpose purifier — available in powder and crystal forms. 

Ferric Chloride

Powerful flocculant and etchant — supplied in liquid (40%) and solid (≥96%) grades

Ferric Chloride Hexahydrate

Safe, high-purity option — available as yellowish-brown lumps or powder.

Ferrous Chloride Tetrahydrate

Effective dephosphorization agent — high-purity crystals. Removes phosphates and controls odors in wastewater.

Ferrous Sulphate

Efficient phosphate removal and algae control — available as heptahydrate crystals and monohydrate powder.

Poly Aluminium Ferric Chloride

High-performance coagulant — available as yellowish brown powder or reddish-brown granules in 28% and 20% grades.

Poly Aluminium Chloride

Advanced coagulation — available as white powder (high-purity) and yellow powder (general grade).

Poly Ferric Sulphate

High-performance flocculation — offered in powder, granules, and liquid forms. Excellent for high-turbidity and colored wastewater.

What is Coagulation

Coagulation is the chemical process that destabilizes suspended particles and colloids in water. By adding specific coagulants—such as Aluminum Sulfate (Alum), Ferric Chloride, or PAC—these tiny impurities clump together to form larger, settleable particles called “flocs.”

This critical first step prepares water for effective filtration and disinfection, ensuring crystal-clear and safe results.

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Key Factors Influencing Coagulant

Several factors influence the efficiency and effectiveness of the coagulation process:

  1. Coagulant Selection: The choice of coagulant depends on the specific characteristics of the water being treated, such as pH, turbidity, and the nature of contaminants present.

  2. Coagulant Dosage: The proper dosage of coagulant is crucial for achieving optimal coagulation. Insufficient dosage may result in incomplete particle destabilization, while excessive dosage can lead to increased chemical residuals and potential water quality issues.

  3. pH Adjustment: Adjusting the pH of the water can enhance coagulation efficiency. Optimal pH ranges vary depending on the coagulant used, but typically lie between 6.5 and 7.5.

Benefits of Coagulation

  1. Suspended Particle Removal: Coagulation efficiently removes suspended particles, such as sediment, organic matter, and microorganisms, from water. This results in improved water clarity and reduced turbidity.

  2. Pathogen Removal: By removing colloidal particles and microorganisms, coagulation significantly reduces the presence of harmful pathogens, safeguarding public health and preventing waterborne diseases.

  3. Enhanced Filtration: Coagulation aids in the subsequent filtration process by facilitating the removal of finer particles that may not be effectively captured by filtration media alone. This improves the overall efficiency and longevity of filtration systems.

  4. Precursor for Disinfection: Coagulation sets the stage for effective disinfection, as the removal of suspended particles reduces the interference of organic matter and enhances the disinfection process, leading to safer drinking water.

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How to Choose Coagulant

  •  For drinking water treatment: Choose Aluminum-based coagulants like PAC (white grade) or Aluminum Sulphate — they are proven safe and effective for potable water applications.
  • For phosphorus removal: Choose Iron-based coagulants like Ferric Chloride or Ferrous Sulphate — they achieve up to 99% phosphate removal and help meet strict discharge limits.
  • For high-turbidity wastewater: Choose Polymeric coagulants like PAC or PFS — they form larger, faster-settling flocs and perform well across wider pH ranges.
  • For colored or algae-rich water: Choose Poly Aluminium Ferric Chloride or PFS — they excel at decolorization and achieve over 95% algae removal.
  • For cold water or low-temperature conditions: Choose Iron-based coagulants — they are less temperature-sensitive and maintain performance in colder climates.
  • For minimal sludge production: Choose Polymerized coagulants (PAC, PFS, Poly Aluminium Ferric Chloride) — they consume less alkalinity and generate less sludge than traditional options.
  • For food processing or sensitive applications: Choose Aluminium Potassium Sulphate or food-grade Aluminum Sulphate — they meet stricter purity requirements.
  • For rapid mixing or automated dosing: Choose Liquid forms of coagulants (liquid PAC, liquid Ferric Chloride) for easier handling and precise metering.

Still unsure? Contact our technical team — we can recommend the best coagulant based on your water chemistry, treatment goals, and budget.

FAQ of Coagulant

Yes, we are a direct manufacturer with our own production facility and SGS-certified quality management — not just a trading company.

We test every batch in our laboratory and provide Certificate of Analysis (CoA) with each shipment, confirming active content, purity, and key performance parameters.

Yes, we offer free samples of any coagulant grade. Just tell us your application, and we will send the recommended product for testing.

Water Treatment Coagulant Supplier

HOO CHEMTEC: Your Professional Coagulant Partner

We are a specialized manufacturer and supplier of high-performance coagulants for water treatment, serving industries from municipal drinking water to complex industrial wastewater.

Our Coagulant Product Range:

  • Aluminum-based coagulants: Aluminum Sulfate, PAC (Poly Aluminium Chloride), ACH (Aluminum Chlorohydrate), Aluminium Potassium Sulphate

  • Iron-based coagulants: Ferric Chloride, Ferric Chloride Hexahydrate, Ferrous Sulphate, Poly Ferric Sulphate

  • Specialty coagulants: Poly Aluminium Ferric Chloride, Ferrous Chloride Tetrahydrate

Why Choose HOO CHEMTEC?

  • SGS-Certified Quality: Our manufacturing facility has passed SGS on-site certification, ensuring our coagulants meet rigorous international standards.

  • Fast Global Delivery: Most orders ship within 7 days to China port, minimizing your project lead time.

  • Satisfaction Guaranteed: We stand behind every shipment with a clear return and exchange policy if our products do not meet your expectations.

Need the right coagulant for your water? Contact our technical team for expert recommendations

Send Your Inquiry Today