Oxidation/ Reduction/ Neutralisation
Chemical Oxidation / Reduction
The removal of iron, manganese and chrome as well as organic substances can be achieved by oxidation and reduction processes depending on the element. Therefore BAUER Environment Group uses conventional and special processes developed by BAUER Environmental Group scientists.
Catalytic Oxidation
Organic Substances in the off-gas stream of stripping units or in soil vapour can be completely oxidised to CO2 and H2O by catalytic oxidation. BAUER Environment Group offers a range of various CatOx systems as an alternative to gas treatment by activated carbon. These systems are built and developed by BAUER Environment Group. Catalytic oxidation allows the oxidation of contaminants far below the temperatures for thermal oxidation. Operating temperatures are between 250 and 550 °C. the systems allow gas flow from 250 m³/h up to 1000 m³/h.
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UV-Oxidation
BAUER Environment Group also offers systems for UV-Oxidation. Depending on the water composition hydrogen peroxide has to be added to the water stream as an supporting agent before the UV-Oxidation. The system is operated in continuous flow with a mean residence time of just a few seconds. UV-Oxidation is applied for the oxidation of organic substances and the removal of cyanide and COD.
Oxidation by Oxygen Enrichment
The enrichment of oxygen in water is used for iron removal. The distribution of air in the water is achieved by an aeration jet or a pressure oxidiser. Gas saturation in the liquid phase is reached by a minimum on gas surplus.
BAUER Environment Group Oxidation, Reduction and Neutralisation Projects:
Catalytic Oxidation of BTEX as a treatment stage for groundwater treatment (Freiburg, Germany)
Neutralisation and Oxidation of a Nitrite contaminated Tunnelling Water (Faido, Switzerland)
Treatment of TPH and PAH Contaminations using UV-Oxidation (Henningsdorf, Germany)
