Process Models

Research-grade biokinetic simulators: ASM1, ASM2d, and ADM1. Based on IWA Task Group models with Runge-Kutta solvers.

🧬ASM1 Biokinetic Simulator

IWA Activated Sludge Model No. 1 - Research-grade simulation

Competing with

GPS-X ($15,000)

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Wastewater Source

Flow Rate (m³/d)

COD (mg/L)

BOD₅ (mg/L)

TSS (mg/L)

TKN (mg/L)

NH₄-N (mg/L)

Alkalinity (mg/L as CaCO₃)

Volume (m³)

HRT (hours)

SRT (days)

Temperature (°C)

Target DO (mg/L)

RAS Ratio

Simulation Mode

Based on IWA Activated Sludge Model No. 1 (Henze et al., 1987). Parameters at 20°C with Arrhenius temperature correction.

8 biological processes • 13 state variables • Runge-Kutta 4th order solver

ASM1: Henze, M., et al. (1987). Activated Sludge Model No.1. IAWPRC Scientific and Technical Report No. 1.

ASM2d: Henze, M., et al. (1999). Activated Sludge Models ASM1, ASM2, ASM2d and ASM3. IWA Scientific and Technical Report No. 9.

ADM1: Batstone, D.J., et al. (2002). Anaerobic Digestion Model No.1 (ADM1). IWA Scientific and Technical Report No. 13.

VerWater integrates the full water cycle in one platform

Treatment train builder & design

Oxygen transfer & blower sizing