ClearFox® DiOx
Advanced Electrical Oxidation Process (AEOX)
Tagline
- No Chemicals
- No Reagents
- Scalable
- Proven Process
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Description
The ClearFox® DiOx is an Advanced Electrical Oxidation (AEOX) system that utilizes cutting-edge technology with diamond-doped electrodes to effectively oxidize a wide range of difficult-to-treat pollutants. These include persistent substances such as PFAS, “forever chemicals,” inert COD, heavy metals, BTEX, spent caustics, dyes, dioxins, and other contaminants. The ClearFox® DiOx is a cutting-edge fourth-stage technology that proves effective where conventional treatment methods reached their limits.
How It Works
- The pretreated wastewater is first directed into a separate module equipped with electrically conductive diamond electrodes.
- By applying an electric current, highly reactive hydroxyl radicals are genereated directly from the water without any additives.
- These radicals immediately attack the remaining pollutants and completely break them down into harmless end products such as carbon dioxide and water.
- The result is an almost residue-free wastewater that can be safely discharged into the environment or reused
Designed as a modular and scalable solution, it is particularly suited for treating low-volume, highly polluted wastewater. The DiOx system can function as a standalone treatment or be integrated with other ClearFox® process steps for a comprehensive wastewater treatment solution.
Advantages
- Zero Chemicals. Zero Hassle.
Compared to other advanced treatment methods, boron-doped diamond (BDD) electrodes offers a particularly powerful and chemical-free solution for the removal of micropollutants. While processes such as ozonation or the Fenton reaction rely on the use of hazardous or difficult-to-dose chemicals, BDD generates highly reactive oxidants – especially hydroxyl radicals – directly from the water and solely through the application of electric current. This eliminates not only the need for storage and handling of hazardous substances but also the risk of unwanted by-products such as bromate or iron sludge.
- Destroy, not just capture
In contrast to activated carbon, which merely adsorbs pollutants and later requires costly disposal, BDD technology breaks down contaminants completely. Photochemical processes such as UV/H2O2 also show good effectiveness but rely on clear water and still require chemical additives. Membrane processes like nanofiltration or reverse osmosis achieve high retention rates, but they generate contaminated concentrate and are prone to operational disruptions.
- Safe and reliable operation
BDD systems are designed to be robust and reliable even under challenging wastewater conditions. The DiOx operates fully automatically. BDD systems are not only effective in removing micropollutants, but also easy to integrate into other treatment steps. They operate independently of water turbidity or biological processes. We also offer pilot systems to evaluate performance with your specific wastewater before moving to full-scale implementation.
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Specifications
| Anode | BDD |
|---|---|
| Cathode | Titanium |
| Power | max. 1.5 Watt (1 anode); 3kW (2 anodes) |
| Current | max. 150A/300A |
| voltage | max. 10V |
| Electrode type | Boron-doped diamond based on niobium |
| Maximum current density | 100 mA/cm² |
| Electrode distance | variable, typically 2-5mm |
| Max. Operating pressure | 0.5 bar |
| Min. flow | 5L/min |
| Max. flow | ~84L/min |
| Max. Operating temperature (medium) | 40°C |
| Housing material | PP, max. 70°C temperature resistant |
| Gasket material | EPDM |
| Contact material anode side | BDD |
| Contact material cathode side | Titanium or BDD |
| Contacting Current supply | Titanium/aluminium |
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Reference Projects
FAQs
1. What is the ClearFox® DiOx EO system?
The ClearFox® SBR (Sequential Batch Reactor) Standard Kit is a range of equipment designed for the biological treatment of municipal wastewater. These kits can be installed in locally manufactured tanks of any material and shape, tailored to achieve specific effluent standards. They cater to populations ranging from 4 to 1,000 persons, with larger systems designed on a case-by-case basis.
2. Which pollutants can the ClearFox® DiOx EO system treat?
- Per- and polyfluoroalkyl substances (PFAS) “Forever chemicals”
- Inert Chemical Oxygen Demand (COD)
- Heavy metals
- Benzene, Toluene, Ethylbenzene, and Xylene (BTEX) compounds
- Spent caustics
- Dyes
- Dioxins
3. How does the ClearFox® DiOx EO system work?
4. What are the key advantages of the ClearFox® DiOx EO system?
The system offers several benefits:
- Chemical-Free Operation: It requires no additional reagents or chemicals, relying solely on electricity.
- Energy Efficiency: Operates under low-pressure and low-temperature conditions, optimizing energy consumption.
- Modular and Scalable Design: Allows for easy integration and expansion based on treatment needs.
- Proven Effectiveness: Capable of treating a wide range of persistent and hard-to-degrade pollutants.
5. In which industries can the ClearFox® DiOx EO system be applied?
The system is suitable for various industries, including:
Pharmaceutical
Oil and gas
Textile
Printing
Semiconductor
Food processing
Landfill leachate treatment
Its versatility makes it applicable to any sector requiring the oxidation of inert organic matter.
6. Can the ClearFox® DiOx EO system be integrated with existing wastewater treatment processes?
7. What are the technical specifications of the ClearFox® DiOx EO system?
The system’s specifications vary based on the module configuration:
Electrode Type: Boron-doped diamond electrodes on a niobium base.
Anode Surface Dimensions: 500 mm x 150 mm.
Maximum Current Density: 100 mA/cm².
Voltage Range: 3 V DC to 25 V DC.
Spacer Material and Insulation: Teflon.
Contacting Material (for reversing polarity): Titanium.
Minimum Flow Rate: 5 L/min.
COD Removal Efficiency: Approximately 0.298 g/Ah.
Heavy Metal Removal Efficiency: Up to 99%, depending on wastewater composition.
