Back to Resources
Chemical ProductsArticle
Choosing the Right Coagulant: PAC vs Alum vs Ferric Chloride
How to select between common coagulants based on water chemistry, sludge production, and operating cost.
Nebraska Technical TeamNebraska March 21, 2026 2 min read
Key takeaways
- Coagulation is the workhorse step in most water and wastewater treatment trains.
- We compare PAC, Aluminium Sulphate, and Ferric Chloride across performance, dose, sludge characteristics, and corrosivity.
- Use jar testing as the ultimate decision tool — small lab-scale tests pay back many times over in operating savings.
Section 01
Coagulation is the workhorse step in most
Coagulation is the workhorse step in most water and wastewater treatment trains. Selecting the right product impacts effluent quality, sludge volume, and overall operating cost.
Section 02
We compare PAC, Aluminium Sulphate, and Ferric
We compare PAC, Aluminium Sulphate, and Ferric Chloride across performance, dose, sludge characteristics, and corrosivity.
“Compliance is a system, not a binder. Build it once, maintain it every day — and audits stop being events.”
Section 03
Use jar testing as the ultimate decision
Use jar testing as the ultimate decision tool — small lab-scale tests pay back many times over in operating savings.
NT
Nebraska Technical Team
Writing about chemical products at Nebraska.
