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Product Overview


GPS-X is the most advanced tool available for the mathematical modeling, simulation, optimization and management of wastewater treatment plants.

The user-friendly drag and drop interface and comprehensive database of unit processes allows users to quickly and easily assemble a treatment plant model, enter characterization data, and run simulations.

Develop and optimize advanced control schemes, predict effluent quality under varying conditions, conduct planning and capacity analysis or offer sophisticated training and development programs with a dynamic model of your actual or proposed plant.

GPS-X was the first commercially released dynamic wastewater treatment plant simulator and still remains the solution of choice today.



GPS-X models can be applied to solve many different problems and can be used by a wide range of users:

Simple and Intuitive, yet Versatile

User-friendly Interface - It's easy to define complex treatment plant configurations, run simulations and analyze results.

Simulation Control Fast Steady-State and Dynamic Simulations - Using a powerful numerical simulation engine for fast simulation results you can simulate hundreds of days of dynamically changing performance in just minutes.

Extensive Library of Unit Processes - GPS-X contains the industry's largest library of process models, covering a wide range of liquid and solids treatment.

Comprehensive Biological Model – "Mantis2" - Complete model for Carbon, Nitrogen and Phosphorous removal.



Upgrade to the Pro version to unleash the power of the analyzer/optimizer module.

Open Modelling Platform, with Open-Source Models

Open Source

The GPS-X simulation environment allows users to write/edit/change models, via the ACSL programming language.

Add any new calculations/algorithms/variables to your model layout.

Advanced tools such as Model Developer allow for easy biological model manipulation in matrix format.

All GPS-X input and output menus, as well as the new simulation result summaries, can be edited and customized by the user.

Unsurpassed Support

Tech Support

GPS-X has become the modeling software of choice for the industry because of the responsive technical support, detailed reference documentation, and regular updates.

Phone, email and internet meeting channels provide instant support to clients.

Join our regular live webinars for classes, tutorials and tips on how to get the most out of GPS-X.

International Support

GPS-X is available in many languages including the following:

Spanish Chinese Korean French Japanese Hungarian Russian English