News

US-Dutch collaboration on new adsorbents for removal of micropollutants

Posted on 5 June 2018

dws-wibo-cyclopure-wwtp-horstermeer-740px
Dutch-based organisations Water utility Waternet and engineering firm Witteveen+Bos announced their collaboration with CycloPure (USA) that is commercializing a new class of selective adsorbents to deal with micropollutants of emerging concern such as pharmaceuticals, pesticides and per- and polyfluoroalkyl substances (PFAS).

Based on extensive research at Cornell University and Northwestern University (USA), CycloPure designed an adsorbent called High Affinity Cyclodextrin Polymers (HACPs) that is now in early production and pilot testing.

Witteveen+Bos and Waternet jointly evaluate the potential of these promising adsorbents for effluent polishing at waste water treatment plants in the Netherlands, and develop the best suitable treatment concept.

dws-wibo-cyclopure-graphic-bpa-removal-350px
CycloPure claims the uptake of Bisphenol-A (BPA) by its CD-MP in seconds as compared to minutes for activated carbon.

Rapid uptake
CycloPure’s technology allows the conversion of renewable cyclodextrins - derived from corn starch - into highly adsorbent materials that are ideally suited for water treatment applications.

Its adsorbents gain their strong binding affinity from cyclodextrin inclusion complexes that are optimally sized for the attraction and removal of micropollutants.

With high capacity and rapid uptake at trace pollutant concentrations, CycloPure’s HACPs feature lower dosing to achieve adsorption objectives, and can be regenerated on-site with a very high reuse percentage.

About partners
Witteveen+Bos provides consulting- and engineering services for several regional Dutch water authorities and is highly involved in the micropollutant topic.

Waternet is the water utility for Amsterdam that built a full-scale effluent polishing plant (in front on top photo) removing micropollutants in 2012 and are currently optimizing this system.

CycloPure has developed two novel adsorbent formulations, CD-MP and CD-PFAS, for the removal of micropollutants from water. The company’s patented HACPs can be produced in varying particle sizes, allowing for flexible use across a broad spectrum of water treatment applications.

This news item was originally published on the website of Witteveen+Bos.


Read also on this website
Nijhuis and Witteveen+Bos agree on worldwide roll out of 1-step filter for waste water treatment, 9 March 2018
PureBlue Water develops effective removal of pharmaceuticals from wastewater, 17 May 2016
Expertise: Water technology


More information
Witteveen+Bos
Deventer, the Netherlands
+31 570 69 79 11
www.witteveenbos.com

Waternet
Amsterdam, the Netherlands
+31 889 39 4000
www.waternet.nl/en

CycloPure
Encinitas CA, USA,
+1 760 260 8150
www.cyclopure.com

 

Twitter

Dutch Water Sector

@HollandWater

yesterday

Climate talks give new meaning to wetlands as carbon sinks #cop24 https://t.co/j4uA6awrza @WetlandsInt https://t.co/pmGzZVjd8T

Dutch Water Sector

@HollandWater

2 days ago

New online initiative WaterConnect supports decision-making on water management https://t.co/7HrRIiCjJNhttps://t.co/U1NdDl3wmH

Worldwide Projects

Upcoming Events

dws-events-wetlands-day-poster-770px

World Wetlands Day 2019

Date: 2 February 2019

dws-events-eu-dredging-poster-770px

4th European Dredging Summit

Date: 6 March 2019