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Phosphate

Projects

Health
Safe innovation and the water sector
Polishing pellets

During the production process of drinking water (dissolved) iron is removed from the water. Sand filtration is a treatment technique commonly used for this purpose. The flushing of the sand filters then generates aquafer, which is a…

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Health
Safe innovation and the water sector
Circular Water 2050

The project ‘Circular Water 2050 – impact and opportunities of the “fully circular in 2050” target for an urban water cycle falls under the WiCE ‘Efficient with Raw Materials’ research area. The project’s aim is to develop…

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Sustainability
Climate change and resilience
Effects of Sand-Drift Dynamics on the Conservation and Restoration of Grey Dunes

Since 2012, within the framework of DPWE, research has been ongoing on the restoration and management issues of dry dune grasslands (habitat Grey dunes). The research is a…

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Sustainability
Sustainable use of freshwater resources
Consequences of intake of back-up Lek water on drinking water quality and dune ecology

As a result of climate change, low river discharge levels are occurring more frequently and for longer periods in the Meuse. This can structurally change the river’s water…

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Sustainability
Sustainable use of freshwater resources
Incorporation of soil nutrients and acidity into PROBE

The vegetation composition in freshwater natural ecosystems can be explained on the basis of the soil moisture, nutrient fertility and acidity. A reliable assessment of how the vegetation…

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Enabling technologies
Future-proof networks
On-site sensoring & monitoring

Determining nutrient concentrations with electronic finger prints and an algorithm based on an artificial neural network. Technology Within TKI Water Technology’s Smart Water Systems theme, a method has been developed which processes…

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Sustainability
Sustainable resources
Application of drinking water sludge to phosphorus-rich soils to favour nature development

Species rich vegetation generally develops on nutrient poor soils. On former agricultural land, in which phosphorus availability levels are high because of years of fertilisation, the development of…

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Sustainability
Sustainable resources
Application of granular ferric (hydr)oxide for arsenic and phosphorus removal

The production of drinking water generates iron sludge as a residual. The iron sludge contains ferric (hydr)oxides, which are able to adsorb substances such as arsenic and phosphorus.…

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Enabling technologies
Hydrogenomics
Exploring the potential of the qPCR technique in biological wastewater treatment

Within today’s wastewater treatment practice most attention is focused on achieving extensive and stable biological nutrient removal in the activated sludge process, including a stable biological phosphorus removal…

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Sustainability
Sustainable resources
Removing H2S from biogas using granular iron(hydr)oxide

Aquafer is a sludge consisting of ferric oxide/ferric hydroxide, which is a residual of drinking water treatment processes. Reststoffenunie (now AquaMinerals) looks after the disposals of the aquafer…

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Sustainability
Sustainable resources
Sustainable airport cities

This TKI project is meant to showcase how different sectors can strengthen each other in the process of increasing the sustainability of their own sector – a win-win concept – through the application of innovative technologies originating…

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Sustainability
Sustainable resources
Production and application of granular aquafer

Every year in the Netherlands about 95,000 tons of aquafer is generated (62,000 tons of liquid aquafer and 33,000 tons of dewatered aquafer). Reststoffenunie (now AquaMinerals) disposes of this water company residual…

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News

News

Award-winning publication outlines circular future for aquafer

24 April 2023 — On 21 April, Wolter Siegers and Roberta Hofman of KWR received an award for their paper ‘Reuse of…

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Blog

Arsenate removal from drinking water by application of pelletized iron(hydr)oxides

10 June 2021 — The aim of the TKI Polishing Pellets project is to convert liquid iron sludge into granular pellets suitable…

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News

Water sector sets course for the circular economy

26 November 2020 — The recently published report ‘Stip op de horizon Circulair Water 2050’ (‘Point on the Circular Water 2050 horizon’)…

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News

Nutrient Platform members’ meeting at KWR on 7 December 2017

18 December 2017 — The Nutrient Platform members’ meeting is held three times per year at one of the 35 members’ premises.…

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Blog

Kees Roest speaks at Fosfaatspagaat Symposium

22 November 2017 — On Sunday, 19 November the Fosfaatspagaat Symposium was held in the Metaal Kathedraal in Utrecht. The event was…

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News

Sustainability pilot with struvite pellets for lush Schiphol grasslands

08 September 2016 — On 7 September 2016 struvite fertilising pellets were applied to the areas next to Schiphol airport’s runways Schiphol-Rijk…

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Article

2015 Willem Koerselman Award to Cornelissen and Roest

12 April 2016 — Emile Cornelissen and Kees Roest won the 2015 Willem Koerselman Award for their article ‘Forward osmosis for application in…

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Article

Iron and lime sludge applied to test plots in Bloemkampen nature area

03 September 2015 — Since 27 August 2015, a Natuurmonumenten information board at the Bloemkampen nature area (municipality of Nunspeet) tells visitors…

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KWR researcher Yuki Fujita wins 2nd prize for Best Paper

16 February 2015 — In February 2015, KWR researcher Yuki Fujita, together with her co-authors, won 2nd prize for Best Paper during…

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