calculate_hardness: Calculate hardness from calcium and magnesium

In tidywater: Water Quality Models for Drinking Water Treatment Processes

Calculate hardness from calcium and magnesium

Description

This function takes Ca and Mg in mg/L and returns hardness in mg/L as CaCO3

Usage

calculate_hardness(ca, mg, type = "total", startunit = "mg/L")

Arguments

ca	Calcium concentration in mg/L as Ca
mg	Magnesium concentration in mg/L as Mg
type	"total" returns total hardness, "ca" returns calcium hardness. Defaults to "total"
startunit	Units of Ca and Mg. Defaults to mg/L

Value

A numeric value for the total hardness in mg/L as CaCO3.

Examples

calculate_hardness(50, 10)

water_defined <- define_water(7, 20, 50, 100, 80, 10, 10, 10, 10, tot_po4 = 1)
calculate_hardness(water_defined@ca, water_defined@mg, "total", "M")

tidywater documentation built on Aug. 8, 2025, 7:15 p.m.