Information on the use of cookies on this website

This website uses cookies, which are necessary to ensure certain functions of the website and help us to analyze how our website is used.

If you click "OK", you consent to the use of all cookies based on our privacy policy. You can revoke or adjust your choice at any time within our privacy policy.

If you click "Customize", you can make a selection.

Please make a choice regarding the use of cookies on this website.

Required cookies
These are cookies that are necessary to ensure the basic functionality of the website.

Required cookies
These are cookies that are necessary to ensure the basic functionality of the website.

Functional cookies
For the continuous improvement of our internet offer we use the service Google Analytics. Google Analytics uses cookies, which are small text files that are stored on your computer and that allow an analysis of the use of the website by you. More information can be found in our privacy policy, where you can change the use of these cookies at any time.

Inauguration of Energy Factory Walcheren

At June 1st 2018, The Energy Factory Walcheren was inaugurated by Waterboard Scheldestromen.  The facility is the first Energy Factory in the South Western province “Zeeland” and is the second Dutch Energy Factory realised by ELIQUO Water & Energy.  

ELIQUO Water & Energy has modified the existing sludge processing line of the WWTP at the village of Ritthem, treating approximately 125.000 PE of wastewater of Walcheren and surrounded communities. As a result of digestion of indigenous and import sludge’s, the facility produces 35 % more electricity as required for the entire waste water plant. The surplus of the produced energy will be sufficient to provide 380 households for their annual electricity needs, which is more than one and a half times the number of households in the neighbouring village of Ritthem. 

SO, the objective to make the entire WWTP Walcheren energy self-autonomous is being achieved. At the moment ELIQUO and the Waterboard are performing the start-up of the ANAMMOX® plant at the WWTP. This process, which removes nitrogen in a continuous aerated granular sludge reactor, further reduces the oxygen demand in other sections of the waste water plant. This contributes to the further reduction of the electricity demand as well. 

Additionally and in order to reach all sustainability goals at the new plant, a new struvite precipitation process is being realised. This process precipitates phosphate from the digested sludge as struvite. Subsequently the sludge, including the formed struvite crystals, is dewatered and trucked to a nearby centralised sludge incineration facility. Dewatered sludge cake is actually the "waste product" of the WWTP process, and thus a cost for exploitation to be paid by the citizens. Due to the increased efficiency of the de-watering system caused by this struvite precipitation process, less sludge needs to be disposed to the incineration facility. In this way, the Waterboard also saves additionally on the operational costs of sewage treatment.


More information?

Tel. +31(0)342-744100