Start sampling Campaign Urban case

On Thursday 19 September, the fieldwork for the urban case of the SUSPECt project started. At four locations throughout Nijmegen we placed small sponges (passive samplers) in the sewer to assess the CEC composition of different wastewater types (domestic, industrial, surface run-off). These sponges remain in the underworld for one to 6 weeks until we retrieve them again and take them to the laboratory for further analysis. We expect to obtain the first results in November.

The start of the sampling campaign was covered by the media including OmroepGelderland and Radboud University’s magazine VOX.

Welcome to!

Welcome to the website of the Contaminants of Emerging Concern (CEC) partnership.

Research themes of the partnership:

i.   Effect directed monitoring
ii.  Sustainable treatment technology for municipal effluents
iii. Effective control

Projects of the partnership:

  1. AdOx - a next generation adsorption-oxidation process for removal of CECs from municipal wastewater
  2. Cost-Efficient Removal of Contaminants of Emerging Concern in Urban Waste Water Treatment Plants CER-CEC
  3. Decision SUpport ToolS for Risk-based Prioritization and Control of Contaminants of Emerging Concern (SUSPECt)
  4. EMERCHE: Effect-directed Monitoring tools to assess Ecological and human health Risks of CHemicals of Emerging concern in the water cycle
  5. RoutinEDA: expanding the scope and downscaling the format of high throughput Effect-Directed Analysis for routine water cycle monitoring and effective control

For more information, visit the NWO website of this program (Dutch).


Project AdoX:

Removal of contaminants of emerging concern (CECs) from wastewater treatment plant effluent is
becoming more and more important. Current wastewater treatment plants are not equipped for removal of
CECs. Much research is carried out into the removal of these compounds by oxidation, adsorption,
biodegradation and combination of these processes. However, these processes are characterized by high
costs, a large environmental impact and limited selectivity for CECs. In the AdOx project an innovative
process will be developed based on adsorption of CECs with zeolites, and chemical regeneration of
exhausted zeolites with ozone. The AdOx process integrates adsorption and oxidation and is expected to
result in the removal of a wide range of CECs as compared with alternative technologies. The process is
also suitable for a cost-effective and sustainable alternative regeneration technology of exhausted
adsorption material.


15-11-2018 - The Kick-off and QA day was a succes



12-11-2018 - today we will have the first CEC-Partnership programme day and quality assurance workshop @ KWR Nieuwegein.

The programme of the day is:


Registration and coffee


Introduction about the CEC-partnership

Bas van der Wal – STOWA


Introduction TTW

Stefan Jongerius – NWO domain TTW

11:40 – 12:30

Introduction projects 1 and 2 (15 min + 5 min questions)

Project leaders




Introduction project 3, 4, 5

Project leaders




QA Workshop  
Annemieke Kolkman


Tour + drinks


The venue

KWR Watercycle Research Institute – Groningenhaven 7, Nieuwegein


6-3-2018 - is live!


Project CER-CEC:

Removal of Contaminants of Emerging Concern (CECs) in Urban Waste Water Treatment Plants (UWWTPs) is highly variable and often low, causing pollution of surface and drinking water. As knowledge on breakdown of CECs is severely limited, we aim to assess and optimise biodegradation of a selected group of CECs in several UWWTPs. To that end, we will relate physico-chemical properties of micro-pollutants, genetic/enzymatic characteristics of microbes and physical conditions in reactors and treatment plants to each other, combining empirical and modelling approaches. New data, improved models, guidelines for optimisation and a full analysis of environmental and financial costs and benefits will be delivered. The outcomes will be beneficial for a large group of (end-)users, including waterboards, drinking water companies, water technology companies, governmental agencies and their advisors.


Information about projects that is available publicly.

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