Water Treatment Knowledge
Coagulants, disinfection, antiscalants, biocides, boiler and reverse osmosis programmes — written for plant, utility and municipal water teams.
6 articles across five guide types.
Explore by question
Foundation, application, comparison, buying and troubleshooting guidance for this family.
Foundation Articles
What the material is, and what it actually does.
Comparison Articles
Option A against option B, with the trade-offs stated plainly.
Antiscalants and Phosphonates — Choosing the Right Threshold Inhibitor
Antiscalants work at sub-stoichiometric dose: 2–10 mg/L holds hundreds of mg/L of scale-forming ions in solution by distorting crystal growth. The selection driver is which scale you are fighting and whether the system carries chlorine. HEDP gives strong…
Water Treatment Coagulant Selection Guide — Alum, PAC, Ferric and Polymer
Coagulant choice is decided by raw water alkalinity, temperature and the sludge you are willing to handle — not by price per tonne. Aluminium sulphate (alum) is the cheapest per kilogram but consumes about 0.5 mg/L of alkalinity as CaCO₃ for every 1 mg/L…
Industrial Chlorination and Disinfection — Dose, Contact Time and Residual
Disinfection is not a dose, it is a CT product: concentration of free residual multiplied by contact time. A plant achieving 0.5 mg/L free chlorine for 40 minutes delivers the same CT as 1.0 mg/L for 20 minutes, and both fail if short circuiting in the…
Oxidising vs Non-Oxidising Biocides — When Each One Wins
Oxidising biocides kill fast, cheaply and indiscriminately; non-oxidising biocides penetrate biofilm and survive conditions that destroy an oxidant. A working cooling programme uses both: a continuous or shock oxidant to hold the bulk water, plus a…
Buying Guides
How to specify a grade, compare suppliers, and prepare an RFQ.
Keep exploring Allzone
Take the next step — never a dead end
Continue with a related product or technical article — or send us the specification you need quoted today.
Browse supply categories
Ready to move?
We usually acknowledge enquiries within one business day.