🧂 Remineralization (Crushed Calcite Bed Re-Hardening, LSI Saturation Index Target 0.0)

Nanofiltration Permeate Remineralization Calculator

Size limestone/calcite ($CaCO_3$) contact dissolution contactor beds downstream of NF and LPRO permeate lines: add dissolved calcium bicarbonate alkalinity ($40 ext{ to }60 ext{ mg/L as }CaCO_3$), adjust Langelier Saturation Index ($LSI = 0.0 pm 0.2$), prevent distribution pipe lead/copper corrosion, and water compliance profits.

1. Project & Operating Inputs

Permeate Water Flow (GPD e.g. 750,000 GPD Softened Permeate)

Target Finished Alkalinity (mg / L e.g. 50.0 mg/L CaCO3 Alkalinity)

Customer Bid Price for Supplied Calcite Contactor Skid ($)

FRP Pressure Vessels, High-Purity NSF 60 Calcite Media, CO2 Injector ($)

2. Financial Breakdown & Yield

CALCITE CONTACT DISSOLUTION

Turnkey Calcite Contactor Skid Profit

Municipal Water Stabilization Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost