Chemical dosing
Stock dose rate for any soluble chemical — chlorine, coagulant, caustic, antiscalant. Pick a preset or enter the stock strength.
Dose rate
41.7mL/h
= 0.694 mL/min
Within typical diaphragm metering-pump range.
Daily stock
1L / day
Monthly stock
30L / month
Active ingredient
0.12kg / day
Mass of active chemical delivered.
Mixing tank · reverse from dosing pump
Active dosing rate
At 1 bar the pump curve reads 4 L/h (at 100 % stroke). Set the analog dial to 100 % — the pump delivers 4 L/h of diluted solution into the process — this is the rate the mixing-tank recipe below is sized for.
Mixed solution conc.
1,250mg/L
= 1.04 % w/v
What the mixing tank should contain after dilution.
Chemical to add
1.04L
Solution is 1.04 % chemical · tank lasts 25 h continuous (1.04 days at 24 h/day).
Water to add
99L
Top up to 100 L total.
Tank runtime
25h
= 1.04 days @ 24 h/d
Continuous run-time before the tank empties.
Dosing specification
Dose 41.7 mL/h of Sodium hypochlorite (NaOCl) — 12 % liquid to hit 1 mg/L in 5 m³/h. At 1 bar the pump curve reads 4 L/h at 100 % stroke; run the pump at 100 % stroke to deliver the full 4 L/h. Mixing recipe for the 100 L tank: 1.04 L of stock + 99 L water, lasts 25 h continuous (1.04 days at 24 h/day). Daily consumption ≈ 1 L of stock and 0.12 kg of active ingredient.
Solution is 1.04 % chemical · tank lasts 25 h continuous (1.04 days at 24 h/day).