Advantages and Technical Characteristics of Titanium Anodes
Synergistic Material Properties
1.Corrosion Resistance of Titanium SubstrateTitanium’s self-forming 5–10 nm TiO₂ passive film endures extreme conditions: strong acids (pH < 2), alkalis (pH > 12), and high-salinity waters (e.g., >10,000 mg/L Cl⁻). Its corrosion rate in 30% HCl is 0.01 mm/year—50x lower than stainless steel and 120x lower than lead alloys.
2.Electrochemical Activity of Catalytic CoatingsCoated via thermal decomposition or ALD, key layers include:
RuO₂-IrO₂: Optimized for chlorine evolution (250 mV overpotential), ideal for petrochemical and paper mill wastewater.
SnO₂-Sb₂O₃: Drives oxygen evolution, generating •OH radicals to degrade phenols.
BDD: Boosts •OH production by 30%, targeting persistent pollutants like PFOA.
Electrochemical Performance Advantages
1.Low Energy ConsumptionCatalytic coatings cut cell voltage from 4–5 V (graphite anodes) to 2.5–3.5 V, saving 20–30% energy. Example: treating 1 m³ pharmaceutical wastewater (COD 1000 mg/L) uses 1.5 kWh, 0.5 kWh less than lead anodes.
2.Long-Lasting StabilityThe titanium base and inert coatings extend anode lifespan to 2–5 years. In chlor-alkali setups, RuO₂-IrO₂/titanium coating loss is <0.1 μm/year vs. 5 μm/year for lead anodes.
3.Environmental ComplianceFree of heavy metals, these anodes meet EU REACH and GB 8978-1996 standards, ensuring safe treatment near water sources.
Application Scenarios of Titanium Anodes in Wastewater Treatment
Organic Pollutant Degradation
1.High-Concentration Refractory Wastewater SnO₂-Sb₂O₃/titanium anodes degrade dye wastewater, reducing COD from 3,000 to <200 mg/L (93% removal) and chroma by 95% via •OH oxidation. In a Zhejiang textile mill, Reactive Brilliant Red X-3B mineralization reaches 85% in 2 hours, outperforming Fenton oxidation (60%).
2.Emerging Pollutant Treatment BDD/titanium anodes remove PFAS: reducing PFOA from 500 μg/L to <20 μg/L in 4 hours (50 A/m²), exceeding 90% mineralization by cleaving C-F bonds.
Heavy Metal Removal and Valence Conversion
1.Hexavalent Chromium ReductionWith cathode synergy, titanium anodes reduce Cr⁶⁺ to Cr³⁺ (+1.2 V vs. SHE), precipitating as Cr(OH)₃. In electroplating wastewater, Cr⁶⁺ drops from 100 to 0.1 mg/L, meeting GB 21900-2008.
2.Heavy Metal Ion OxidationIn mine wastewater, titanium anodes oxidize Fe²⁺/Mn²⁺ to Fe³⁺/MnO₂ for removal. A copper mine achieves 98% Fe²⁺ removal with <5 NTU turbidity.
High-Salinity Wastewater Treatment and Resource Recovery
RuO₂-IrO₂/titanium anodes treat >10% salinity oil and gas field fluid, producing ClO⁻ to kill SRB and degrade hydrocarbons. Compartmentalized electrolysis recovers NaCl, reducing water recovery costs by 30% vs. membrane methods.In order to maximize the performance of titanium anodes in wastewater treatment, a thorough understanding of key technical parameters and continuous optimization of the anode design are essential. These aspects not only directly affect the treatment efficiency and energy consumption but also determine the long-term economic viability and environmental sustainability of the electrochemical oxidation process.
Why Choose Us?
Unrivaled Product Quality
Crafted from premium titanium with precision and strict quality control, our anodes use advanced coating methods like thermal decomposition. Catalytic layers such as RuO₂-IrO₂ or SnO₂-Sb₂O₃ boost corrosion resistance, electrochemical activity, and lifespan.
Exceptional Performance
With low overpotential, our anodes cut energy use by up to 30% in electrochemical oxidation. High current efficiency enables fast degradation of organic pollutants, heavy metals, and PFAS across various wastewater types.
Customized Solutions
We customize anode coating, thickness, and structure. Our experts analyze your project to ensure cost-effective, optimized performance.
Extensive Industry Experience
Years of work in textiles, pharmaceuticals, and mining give us deep expertise for proactive problem-solving.
Comprehensive Technical Support
Our support covers installation, maintenance, troubleshooting, and staff training.
Sustainable and Environmentally Friendly
Designed to reduce energy use and heavy metal release, our anodes prioritize sustainability, with ongoing R&D for improvements.
Competitive Pricing
Despite top quality, optimized processes and supply chains make our anodes affordable.
Choose us for superior quality, performance, and service. Contact us to achieve your wastewater treatment goals.
Certification
Qixin is ISO 9001:2015 certified and own more than 10 patents. All its processes and procedures are documented and controlled in accordance with these standard. Qixin has strict product quality control procedure, from raw material to finished product, all the process is tested qualified to assure high quality product.
With technical engineers experienced for more than 18 years of constant research and production for titanium electrode and its application in various industries, Qixin can offer a very high level of technical support and products, which are among its most remarkable characteristics.
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