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The colour caused by organic molecules or substances in water starts to lose its effect by being broken down as soon as it comes into contact with ozone. Ozone applications are great solutions for colour removal in wastewater in many industries.
Due to the strong oxidant nature of ozone gas, the success of colour and odour control methods in drinking water has led to an important market in wastewater treatment.
Ozone systems are very low operating costs, no personnel costs. Ozone systems provide 85-98% success in colour removal and 40-55% success in COD removal.
Today, ozone applications in many countries of the world painting, textile, pharmaceuticals and so on. is one of the preferred methods in industrial plants. Ozone is used as “bleach in pulp and paper production, kaolin production and textile production in addition to the applications mentioned above.
The quality of the ozone treatment effluent in terms of colour control depends on:
The best results concerning colour removal are achieved if the wastewater has been previously treated to lower the values of the other characteristics so that the ozone oxidising effect is “consumed” only or at least at a maximum proportion in colour removal. Additionally, the temperature must be below 30-deg C to achieve the best physical conditions for its solubility.
You can check our ozone generators for colour removal applications for wastewater by clicking here.