Wednesday, August 31, 2016

30/08/2016: Interview with Stefan Dullstein, Linde Gases

Stefan Dullstein is Head of Industrial Segment – Aquaculture and Water Treatment at The Linde Group. Here, he is responsible for management of R&D studies, market analyses, introduction of new products and training and supervision of students.

Stefan has been with Linde for more than 15 years working in various water treatment roles and, prior to that, worked in wastewater treatment and research for the Institute of Environmental Technology at the University of Bremen.

Mr Dullstein has an engineering degree from the Universityof Stuttgart and a PhD in dynamic simulation in wastewater treatment from the same university.

International Aquafeed magazine caught up with Mr Dullstein at Aquaculture UK recently, held this year at the Macdonald Aviemore Highland Resort, situated at the foot of the Cairngorm Mountains in Scotland.
Stefan Dullstein

Linde have many years of experience in the gas supply industry and have been long established as an international brand name. But who are Linde gases, and what is unique to the company that they are able to offer to the Aquaculture industry?

Linde gas is an international gas company with globally more than over 60,000 employees active in more than 100 countries globally, providing solutions for the gas industry and any other kind of application where you need gases and aquaculture is one of them, obviously. So in the field of aquaculture we are developing solutions for the fish farming industry since the mid 1980’s.

Linde undertakes the research and development of all our aquaculture technology at our Innovation Centre in Ålesund, Norway. With its highly equipped laboratories demonstration tanks, the Centre allows aquaculture technologists to observe how the latest oxygenation technologies impact farmed fish development.

Since its opening in 2012 Linde has introduced the capability to run warm water trials to understand and assess the performance of its technology in high temperature water environments inhabited by more tropical species.  Additionally, they have recently installed an external floating dock where technology trials can be performed in the surrounding fjord.

Are Linde currently developing any new aquaculture specific technologies, and if so, what are they and why is their function so important to the aquaculture industry? 
The most important factor for achieving healthy fish is to have healthy water; thus, controlling the concentration of oxygen dissolved in water is crucial in aquaculture. Maintaining the right level of oxygen in water improves utilisation of feed, reduces fish mortality and reduces the need for vaccination and antibiotics.

The latest development that we are presenting here is the Solvox Drop-In unit, which can be used for sea cages when you have low oxygen concentration. Naturally in sea cages, you would always have enough oxygen from the surrounding water so its for where naturally.

Read the full interview HERE.

The Aquaculturists
This blog is maintained by The Aquaculturists staff and is supported by the
magazine International Aquafeed which is published by
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