Celebrating passion for Water, Science and Technology: Festschrift in Honour of Gustaf Olsson
Professor Gustaf Olsson has devoted countless hours over many years to Water Science and Technology, Water Supply and Water Practice and Technology as an author, reviewer, editor and Editor in Chief until finally stepping down from all functions in 2021. In order to honour Prof. Olsson's devotion and contribution to the journals, IWA Publishing has compiled a Festschrift: that is, a book made up of contributions from Prof. Olsson's former students, his colleagues (past and present), and of course his friends.
As the contributions testify, Gustaf's devotion and influence by far exceeds his work at Water Science and Technology. It has been a joy to read through the testimonies about Gustaf and how he has shaped and influenced lives and academic careers. They express an overwhelming gratitude for the way he has influenced and, in some cases, significantly formed both the professional and personal attitude of those he has touched. It also testifies to great scientific contributions, contributions that are strongly embedded in the water sector industry and with great impact at the time of publishing and clearly also well into the future. His leadership example is a source of inspiration to everybody in the water sector whether in academia or industry.
We urge you to read this Festschrift to celebrate Gustaf and get inspired about how to work in service for the greater good of water.
ISBN: 9781789063363 (print)
ISBN: 9781789063370 (eBook)
ISBN: 9781789063387 (ePUB)
Instrumentation, control and automation (ICA) of MBBR plants for nutrient removal in wastewater: ICA of MBBR plants
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Published:September 2022
Hallvard Ødegaard, Harsha Ratnaweera, Bru Rusten, 2022. "Instrumentation, control and automation (ICA) of MBBR plants for nutrient removal in wastewater: ICA of MBBR plants", Celebrating passion for Water, Science and Technology: Festschrift in Honour of Gustaf Olsson, Wolfgang Rauch, Pernille Ingildsen
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Abstract
Cold and dilute wastewater is a major challenge for N-removal at wastewater treatment plants. The moving-bed biofilm reactor process in combination with chemical coagulation/precipitation has proven suitable for nutrient removal under these conditions. Several full-scale plants based on combined pre- and post-denitrification for nitrogen removal and chemical coagulation/precipitation for phosphorous removal have been in operation for more than 20 years. These plants are still performing well, even at above design loads and at low temperatures (<10°C). The success of this process configuration can largely be attributed to its flexibility of operation and control. In this paper the key instrumentation, control and automation elements are discussed and recommendations regarding process choice, reactor configuration and design are given.