Stage | Master thesis in electric driven separation technology - Continuous Membrane capacitive Deionisation

Are you looking for an internship to develop yourself and make an impact on the energy transition? Joining our team, you will experience technology innovation, and your results will advance the development of sustainable industrial solutions.



Education type

university (wo)


Internship and graduation project

Hours a week

Fulltime – 40


Apply now


What will you be doing?

Many industrial processes are inefficient in the use of energy and raw materials. Separation technologies to recover residues and reuse process streams will contribute to a circular economy, save energy and reduce CO2 emissions. Membrane Capacitive Deionization (MCDI) is a separation technology that can remove ions (salts) from process streams by applying an electrical potential difference over two porous carbon electrodes. When the electrodes are saturated they have to be discharged, leading to the disadvantage of a batch-wise operation. At TNO, we designed various cell set-ups to make the process continuous and are currently finalizing the MCDI test system to test these new continuous systems. TNO has identified several potential applications for the technology that need to be tested. This internship provides an exciting opportunity to address the challenges associated with electric driven separations. You will be using the continuous MCDI set-up to test various cell concepts and separate model salt mixtures that mimic the envisioned applications.

What do we require of you?

You are an enthusiastic master student looking for an internship of 6-9 months. You have a chemical engineering, chemistry or material science/engineering background and you are eager to learn about electrochemical separations. You are pro-active and independent with good communication skills in English. You will be working with a diverse team of scientists/engineering/technicians with a wide variety of expertise to make up for a great learning experience. 
Among others, your main tasks will be: 
  • Test and evaluate efficiency of various cell concepts for continuous MCDI processes.
  • Identify potential applications for the implementation of the continuous MCDI technology. 
  • Test separation of salts from relevant model mixtures on both the continuous and batch MCDI system. 
  • Comparison of batch MCDI and continuous system.

What can you expect of your work situation?

You will be working in the Noord-Holland area with breath-takingly beautiful sceneries and living environment. The area, well-known for its sandy beaches in Petten and Bergen, provides a quiet and most beautiful environment for outdoor activities (boating/sailing, swimming, biking, etc.) with easy access to the nearby larger cities such as Amsterdam and Alkmaar. 

TNO is an independent research organization whose expertise and research make an important contribution to the competitiveness of companies and organizations, to the economy and to the quality of society as a whole. Innovation with purpose is what TNO stands for. We work for a variety of customers: governments, the SME sector, large companies, service providers and non-governmental organizations. Working together on new knowledge, better products and clear recommendations for policy and processes. In everything we do, impact is the key.

What can TNO offer you?

You want to work on the precursor of your career; an internship gives you an opportunity to take a good look at your prospective future employer. TNO goes a step further. It’s not just looking that interests us; you and your knowledge are essential to our innovation. That’s why we attach a great deal of value to your personal and professional development. You will, of course, be properly supervised during your internship and be given the scope for you to get the best out of yourself. Naturally, we provide suitable internship compensation.

Has this vacancy sparked your interest?

Then please feel free to apply on this vacancy! For further questions don’t hesitate to contact us.

Due to Covid-19 and the consequent uncertainties and restrictions, students who are not residing in the Netherlands may currently not be able to start an internship or graduation project at TNO.

Contact: Soraya Sluijter
Phone number: +31 (0)88-86 63020

Note that applications via email and third party applications are not taken into consideration.


Apply now



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