Martin Tarugarira

Water Treatment Consultant

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Does ozone remove Diuron?

Although diuron in water can be removed by ozonation, the process is complicated by using a dangerous chemical in the process. This brings with it additional safety and handling issues (often including respiration equipment) and potentially additional personnel training and staffing requirements.

Does GAC remove Diuron?

GAC can remove diuron by adsorption. Although this is quite efficient, the GAC process itself is very energy intensive, both in terms of making the GAC and then replenishing it when it is spent. For our detailed view on the questionable benefits of GAC, see this article.

How to remove diuron from water

There are several answers to the question of how to remove diuron from water:

One is nanofiltration where the holes in the filter are small enough to let water molecules though but trap the larger pollutants. This is normally a slow process (in terms of throughout) and filters need regular replacement.

Another method is using GAC (granular activated carbon.) This is a highly energy-intensive process with several drawbacks,

Photodegradation is also a possibility where a combination of sunlight and air causes oxidation and hydrolysis. This causes the chemical structure of diuron to break down into less harmful compounds.

The last legacy method is to use ozonation. The ozone is used to oxidise diuron and similar contaminants which are broken down into less dangerous compounds for removal.

However, the most efficient and environmentally-friendly method of removing herbicides in water is the Nyex Rosalox™ system from Arvia Technologies.

Learn how Arvia products can help

Diuron is a weed killer used to control leaf and moss growth. This contaminant is moderately toxic to mammals and persists in water and can leach to contaminate groundwater. We have treated municipal wastewater contaminated with diuron to below 0.003 µg/L.