Tools

Interactive tools

Small, hands-on tools — calculators, plotters, and explorers for water and wastewater engineering. Everything runs in your browser.

InteractivePlotDemo

First-order decay explorer

An interactive demo: adjust the rate constant and starting value and watch the concentration curve and half-life update live. Doubles as the template for building new tools.

CalculatorWastewater

Soon

Solids retention time (SRT) calculator

Estimate sludge age from reactor volume, MLSS, and wasting rate.

ConverterUtility

Soon

Water & wastewater unit converter

Quick conversions for loads, flows, and concentrations engineers actually use.