Noble metal oxide coated titanium ribbon anode

​​​​​​​Noble Metal Oxide Coated Titanium Ribbon Anode

In the electrochemical oxidation treatment of ammonia nitrogen wastewater, the chlorine evolution catalytic activity and electrochemical stability of the anode are key factors determining ammonia nitrogen removal efficiency and operating energy consumption. Our Noble Metal Oxide Coated Titanium Ribbon Anode at Baoji City ShenAo Metal Materials Co., Ltd. is designed specifically for the electrochemical oxidation treatment of ammonia nitrogen-containing industrial wastewater. It uses Grade 1 or Grade 2 pure titanium as the substrate, with a noble metal oxide catalytic coating on the surface. The coating maintains stable chlorine evolution electrocatalytic activity in ammonia nitrogen wastewater containing chloride ions, achieving efficient conversion of ammonia nitrogen to nitrogen gas through the indirect oxidation reaction between active chlorine generated at the anode surface and ammonia nitrogen. The anode maintains a stable chemical state during operation, minimizing the risk of metal ion dissolution, making it suitable for the compliance treatment of ammonia nitrogen-containing wastewater from electroplating, metallurgy, chemical, livestock farming, and landfill leachate industries, serving as a reliable electrode solution for ensuring ammonia nitrogen removal efficiency and long-term stable system operation.

This product is for B2B Industrial Use Only. Operators should follow relevant chemical safety protocols and wastewater treatment operation standards.

Technical Specifications

Why Choose Our Titanium Anodes?

• Efficient Chlorine Evolution Activity for Indirect Ammonia Nitrogen Oxidation
  The electrochemical oxidation of ammonia nitrogen primarily relies on the indirect oxidation reaction between active chlorine generated by anodic chlorine evolution and ammonia nitrogen. Our ruthenium-iridium coating exhibits a very low chlorine evolution overpotential in chloride-containing water, enabling efficient active chlorine generation at low cell voltage to ensure efficient conversion of ammonia nitrogen to nitrogen gas. For ammonia nitrogen wastewater with lower chloride ion concentration, trace salt addition can assist in enhancing oxidation efficiency, offering lower energy consumption compared to direct electrochemical oxidation methods.
• Ribbon Structure for Optimized Mass Transfer and Current Distribution
  The ribbon anode features a high specific surface area and good flexibility, allowing flexible arrangement according to the electrolyzer configuration to form a uniform electric field distribution. Wastewater flows smoothly between ribbons, facilitating sufficient contact between active chlorine and ammonia nitrogen for reaction, while also enabling easy gas venting. The ribbon structure is compatible with both flow-through and immersion electrolyzers, making it particularly suitable for ammonia nitrogen wastewater treatment units with limited space.
• Chemical Stability in Chloride-Containing Ammonia Nitrogen Wastewater
  Ammonia nitrogen wastewater often contains chloride ions, sulfates, and various coexisting pollutants, exerting continuous chemical attack on electrode materials. Our ruthenium-iridium coating formulation is optimized to maintain a low corrosion rate and good structural integrity in such complex wastewater environments, making it suitable for long-cycle continuous ammonia nitrogen treatment systems and reducing treatment efficiency decline and maintenance frequency caused by coating degradation.
• Flexible Modular Expansion and Maintenance
  We can provide single or multiple anode modules in series-parallel combinations based on your treatment capacity and ammonia nitrogen concentration. Ribbon anodes are lightweight and easy to install, allowing rapid integration into new or retrofitted ammonia nitrogen treatment units. When anodes reach the end of their service life, they can be individually replaced. We also offer used anode inspection and recoating services, helping you reduce long-term operation and maintenance costs.

Real-World Applications

• Water Treatment and Disinfection: Used for the electrochemical oxidation treatment of ammonia nitrogen-containing industrial wastewater from electroplating, metallurgy, and chemical industries, oxidizing ammonia nitrogen to nitrogen gas through active chlorine generated by anodic chlorine evolution, achieving compliance discharge of wastewater.
• Industrial Wastewater Treatment: Used for the electrochemical pretreatment or advanced treatment of high-concentration ammonia nitrogen wastewater such as landfill leachate and livestock farming wastewater, covering typical high ammonia nitrogen water bodies such as landfill leachate, farm washing wastewater, and biogas slurry.
• Hydrometallurgy and Metal Recovery: Used for the comprehensive treatment of metallurgical wastewater containing ammonia nitrogen and heavy metals, simultaneously removing ammonia nitrogen and destroying metal-ammonia complexes through anodic oxidation, creating conditions for subsequent metal recovery.
• Chlor-Alkali and Halogen Chemical Production: Used for the indirect electrocatalytic oxidation of saline ammonia nitrogen wastewater, utilizing chloride ions in the wastewater to generate active chlorine at the anode for efficient oxidative decomposition of ammonia nitrogen, applicable to the comprehensive treatment of chloride-containing ammonia nitrogen chemical wastewater.

The ShenAo Advantage

18 Years of Fabricating Excellence

Since 2008, we've specialized in valuable metal coated titanium anodes from our office in Baoji's "China Titanium Valley." Our develop bimetallic hazardous welding innovation and progressed coating forms provide items you can trust.

Customization for Your Correct Needs

Every generation line is diverse. We give custom fitted arrangements coordinating your particular current thickness necessities, electrolyte composition, and operational parameters. Whether you require little bunch testing or full-scale generation amounts, we convey on time.

Cost-Effective Lifecycle Management

When coating exhaustion happens, you do not dispose of the whole anode. Our proficient recoating benefit strips the ancient oxide layer, sandblasts the substrate, and reapplies new MMO coating. This expands resource life and decreases your add up to taken a toll of proprietorship considerably.

Frequently Asked Questions

Q: What coating is suitable for ammonia nitrogen wastewater treatment?
A: The electrochemical oxidation of ammonia nitrogen primarily relies on the chlorine evolution–indirect oxidation mechanism, making ruthenium-iridium coatings with high chlorine evolution activity a suitable choice. The ruthenium component exhibits a low chlorine evolution overpotential in chloride-containing water, efficiently generating active chlorine to react with ammonia nitrogen. If the chloride ion concentration in the wastewater is low (e.g., below 100 mg/L), trace salt addition can be considered to enhance treatment efficiency, or iridium-tantalum coatings can be selected for treatment via the direct oxidation pathway.

Q: What factors are related to the ammonia nitrogen removal efficiency of the anode?
A: It is primarily related to the chloride ion concentration in the wastewater, current density, initial ammonia nitrogen concentration, and wastewater pH. Chloride ions are the key reactant in the indirect oxidation reaction; higher chloride ion concentration leads to faster active chlorine generation rates. It is generally recommended that the molar ratio of chloride ions to ammonia nitrogen in the wastewater be no less than 3:1 to ensure sufficient oxidation reaction. Wastewater conductivity and temperature also affect treatment efficiency.

Q: What are the main differences between ribbon anodes and plate anodes in ammonia nitrogen treatment?
A: The main advantages of ribbon anodes lie in their high specific surface area and flexible arrangement. The ribbon structure provides a larger electrode reaction area, achieving higher ammonia nitrogen removal loading within limited space. The inter-ribbon gaps also facilitate wastewater flow and gas venting, reducing gas blockage and concentration polarization. Plate anodes are more suitable for high-flow, open electrolytic cell treatment scenarios, with stronger structural rigidity.

Q: How should anodes be handled when the coating reaches the end of its service life?
A: The titanium substrate remains stable in the ammonia nitrogen wastewater treatment environment. The old coating can be chemically stripped, and once the substrate passes inspection, it can be recoated to restore performance to new-anode levels. We offer a full-service process including incoming inspection of used anodes, coating stripping, substrate treatment, and recoating.

Contact Us

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Titanium Anode Manufacturer

Email: zh@baojiti.com.cn

WhatsApp: +86-15877696471 (updated)

Products: Titanium Anodes, MMO Titanium Anodes, DSA Coated Titanium Electrodes, Electrolysis Electrodes, Hydrogen Production Electrodes, Wastewater Treatment Titanium Anodes.