In chemical processes, the very toxic substance dioxane can be generated. Van Remmen UV Technology prevents this substance from ending up in nature and eventually drinking water by supporting the chemical industry with a sustainable and innovative advanced oxidation technology; Advanox.
Background
Companies in the chemical industry are facing stricter EU regulations regarding dioxane, a common by-product of chemical processes. This is a positive development because dioxane is persistent and toxic, can easily spread in water, and is carcinogenic. To prevent dioxane from entering nature and even our groundwater, reliable removal is necessary. This poses a challenge for companies to develop robust water treatment methods that mitigate risks and avoid downtime.
The challenge
A client in the Netherlands encountered the issue that their on-site wastewater treatment could not remove 1,4-dioxane, resulting in outgoing concentrations exceeding local regulations. The permitted maximum outgoing concentration was <1 mg/L, requiring a removal efficiency of >92% to meet discharge limits.
The solution
We supported the client with an Advanox Precision reactor in their wastewater treatment. This reactor utilizes advanced oxidation to purify water from dioxane. It combines UV-C light and (sustainable) hydrogen peroxide from Nouryon, reacting with the contamination and ‘burning’ it in the water, breaking it down into harmless particles. We developed a customized pilot installation, extensively testing it with various dosages and variations in wastewater. This led to a final installation that effectively removes dioxane with the optimal dosage of UV-C light and hydrogen peroxide, minimizing energy waste.