About us

Dynamita is a software and process modeling company with a team of international experts. We are dedicated to providing our clients with the most comprehensive water/ wastewater simulation software package and services.

Our flagship product is SUMO©, a comprehensive wastewater simulation software package with a user-friendly graphic interface. SUMO© is unique on the market with its open-source model and process unit libraries coded in SumoSlang©, a simple-yet-powerful concept, designed with engineers in mind.

What do we cover?

  • How 40 years and 4 generations of modeling packages changed the world of process design (and what that implies for the users)
  • The single trick that allows you to check if a process worth tens of millions of dollars is worth spending
  • How you can optimize a treatment process today, and explore future challenges
  • What hides beyond the "digital twin" buzzword

The Dynamita Team

Registered in France, the team consists of internationally renowned wastewater process specialist and IT professionals located in Europe and around the world. We speak many languages and are available around the clock with all the benefits of an extended virtual office and unbeatable worldwide experience.

The team


Imre Takács

[Sigale, France]


Bernhard Wett

PhD, Vice president
[Innsbruck, Austria]


Katie Lancelot

Administrative assistant
[Toulouse, France]


Melinda Kujbus

Graphic Designer
[Budapest, Hungary]


Zsolt Haszpra

Manager, IT services
[Budapest, Hungary]


Csaba Kujbus

Senior programmer
[Budapest, Hungary]


Adrianavalona Harinaivo

[Paris, France]


Hélène Hauduc

PhD, Senior process engineer
[Toulouse, France]


Peter Budai

PhD, Senior project manager
[Budapest, Hungary]


Dániel Bencsik

MSc, Senior process engineer
[Budapest, Hungary]


Ferenc Házi

MSc, Senior process engineer


Sabrina Wang

MSc, Process engineer
[Oxfordshire, UK]


Tanush Wadhawan

PhD, Senior process engineer
[Toronto, Ontario, Canada]


Dwight Houweling

PhD, Process engineer
[Sherbrooke, Quebec, Canada]

Just some of our clients...


A happy Professor from Estonia

November 16, 2023

Erki Lember, TTK University of Applied Sciences:

Thanks for your and your Team's effort in building the best intuitive WWTP modelling software in the World!


Good news from Finland

September 28, 2022

"Hi Imre,

Many thanks for the licenses! We had a good course and all participants got their plant models done even though they’ve never used Sumo before. Some were so advanced that they even started optimizing their processes 😊 I have used another process modeling programme on the same course before, but must say Sumo’s UI is so much more intuitive that I very much prefer that.

Majia Sihvonen, Ramboll, Finland."

Learning Sumo is wonderful

April 24, 2019

Joel Rife, Jacobs:

Hello Imre! I’m finally learning Sumo and it is WONDERFUL! It took me very little time to learn how to set up a run a model. I’ve already seen how the basic functionality is a huge improvement on other models and I’ve just scratched the surface. The transparency of the model is also a big improvement. The Influent Tool is a particularly cool, resulting in a highly “tailorable” influent fractionization in the model. I’ve noticed yield predictions to be a bit higher than other models; a good thing because I’ve found other models in many cases low compared to the data. I’m particularly excited that we finally have a secondary clarifier model that provides improved predictability of effluent TSS (no surprise there). In summary THANK YOU for this software and I look forward to many years of exploring all of its features and having fun with it! Joel

Another happy user

August 16, 2018robert robert

Wim Audenaert, AM-Team:

"We have worked with different simulators before, but never got a new model working so fast as SUMO does. We talk about orders of magnitude difference in time spent."

Sumo fires up users

August 16, 2018

Dr. Joshua Boltz, after a successful model development project:

Thank you very much, Imre, for your exceptional support during the encoding and debugging process. Perhaps we now call you by your ancient name, Prometheus. For we have been given fire! Is it not fun to think, at least for this moment, we have a tool that no one else has created?" :-)

Sumo is enjoyable

September 2, 2013michael michael

Michael Friedrich via bounce.secureserver.net
to Imre

Hey Imre I enjoy Sumo! I feel this is the future - congratulation! Please send the invoice!


Sumo user’s first experience

September 2, 2013robert robert

Robert and Imre:

I was able to run SUMO and in fact I did my first simulations. And, yes, within about an hour I am now able to do implement and run models on my own. This is excellent! So far, I very much like what I see! Best, Eberhard.

Imre Takacs <imre@dynamita.com>
to Eberhard, Róbert

Yaaay! Thanks Eberhard.

Sent from my HTC

Skype call, CH2MHill - Dynamita

September 2, 2013

[1/13/2013 7:56:45 PM] Bruce Johnson : boy imre... pretty slow... 9 seconds a day for a fully dynamic feed and 72 bioreactors split into 4 parallel trains. Can't you do any better than that? :O

[1/13/2013 8:00:21 PM] Imre Takacs : give me heart attacks!

[1/13/2013 8:00:35 PM] Bruce Johnson : LOL!!!!

[1/13/2013 8:00:49 PM] Bruce Johnson : very sweet imre

[1/13/2013 8:02:05 PM] Imre Takacs : great. I am going to relay this to the guys because they heard so much about speed from me, they are totally fed up

[1/13/2013 8:04:01 PM] Bruce Johnson : please do! this is absolutely incredible how quick it is.

The model has 105 state variables including DO modelling.