The Fenton Reaction – Our Fentox® Process
Wet-chemical oxidation of critical substances in wastewater streams
We plan and manufacture your highly efficient individual solution
Do you have toxic, biologically refractory substances in the wastewater from your production? We have developed different application-specific systems for this purpose.
- Fentox OCR (Organic Carbon Removal) targets detoxification and enhanced biological availability, e.g. in pesticide manufacturing.
- Fentox PRU (Phosphorus Removal Unit) oxidises organophosphorous compounds to produce a precipitable product. Fentox CRU (Cyanide Removal Unit) safely converts cyanide to cyanate, with particular emphasis on continuous process control.
Your personal partner for these processes: Eisenmann Environmental Technology.
How our Fentox® works
The Fentox® process was developed based on the Fenton reaction. Here, iron salts and hydrogen peroxide react under acidic conditions to form hydroxyl radicals. These exhibit a high oxidising power and act on critical individual substances.
After the removal of larger solids, iron salt is dosed and the water is fed into a two-stage reactor cascade. Hydrogen peroxide is dosed into the reactors and the wastewater is oxidised in a targeted manner. This changes the organic matrix, making it biologically degradable and even precipitable. Up to 50% of the organic load can thereby be separated during neutralisation precipitation together with the hydroxide sludge that forms.
At your side throughout all project phases
Our experienced team provides everything you need for your wastewater treatment – always keeping your specific production environment in view from planning and manufacturing through to after-sales service. Where standard products are insufficient, we develop our own solutions. For wastewater treatment using our Fentox® process, efficiency and system design can be determined in advance through scalable laboratory tests conducted by us.
Let us advise you thoroughly and align all measures with your operational processes.
Your benefits
- Significantly more cost-effective than alternative processes such as thermal treatment or adsorption onto activated carbon
- Highly effective for wastewater that cannot be treated biologically
- Effective reduction of COD and AOX by up to 90%
- Excellent compatibility with physico-chemical and biological treatment stages
- Removal of individual substances to below detection limits
- Scalable baseline data determined through our laboratory tests
Fentox® process in the press
Example: Polyvinyl alcohol removal from wastewater in paper manufacturing
Want expert advice?
Simply contact us by phone or in writing. We will be happy to inform you about your options for the Fentox® process and develop your optimal solution.