🧪 Coagulation Chemistry (Alum 0.5 mg/L CaCO3 vs Ferric FeCl3 0.9 mg/L CaCO3 Depletion)

Alum vs Ferric Alkalinity Depletion Calculator

Calculate stoichiometric natural bicarbonate alkalinity depletion during primary coagulation with Aluminum Sulfate (Alum consumes $0.50 ext{ mg/L CaCO}_3$ per mg/L alum) versus Ferric Chloride (FeCl3 consumes $0.92 ext{ mg/L CaCO}_3$ per mg/L ferric): size supplemental lime / soda ash caustic dosing systems to prevent acidic finished water corrosion ($pH < 7.0$).

1. Project & Operating Inputs

Treated Water Flow (MGD e.g. 15.0 MGD Municipal Plant)

Coagulant Dosing Rate (mg / L e.g. 35.0 mg/L Coagulant Dose)

Customer Bid Price for Supplied Supplemental Lime Feed System ($)

Hydrated Lime Slurry Day Tank, Peristaltic Feed Pumps, pH Controller ($)

2. Financial Breakdown & Yield

ALKALINITY DEPLETION CHEMISTRY

Turnkey Supplemental Lime Feed Skid Profit

Water Treatment Chemical Dosing Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost