Titanium anode for sewage treatment

Titanium Anode for Sewage Treatment: The Core Technology Behind Efficient and Sustainable Wastewater Purification

In modern environmental engineering, titanium anode for sewage treatment plays a crucial role in achieving high-efficiency, low-cost, and eco-friendly wastewater purification. With the continuous tightening of global emission standards, the adoption of advanced electrochemical oxidation technologies based on titanium anodes has become a preferred solution for industrial and municipal wastewater systems.

What Is a Titanium Anode for Sewage Treatment?

A titanium anode for sewage treatment is a specialized electrode designed for electrochemical oxidation and electrolysis processes. It typically consists of a titanium substrate coated with noble metal oxides such as IrO₂, RuO₂, Pt, or mixed metal oxides (MMO). These coatings enhance the anode’s catalytic activity, corrosion resistance, and operational life, making them ideal for harsh sewage environments.

Titanium anode for sewage treatment Key Characteristics

Base material: Industrial-grade pure titanium (Grade 1 or Grade 2)

Coating composition: Ruthenium oxide, iridium oxide, or platinum

Shape options: Plate, mesh, tubular, or rod type

Operating voltage: 3–12 V

Working environment: Acidic, neutral, or alkaline wastewater

The titanium anode serves as the electronic conductor in electrolysis, enabling the oxidation of organic pollutants, ammonia nitrogen, cyanides, and other harmful components without introducing additional chemical agents.

How Does a Titanium Anode Work in Sewage Treatment?
1. Electrochemical Oxidation Principle

During sewage treatment, the titanium anode generates highly active oxygen species (such as hydroxyl radicals •OH) under the influence of electric current. These radicals have a strong oxidizing ability, breaking down organic pollutants into CO₂, H₂O, and harmless inorganic ions.

2. Key Reactions

Direct oxidation: Pollutants are directly oxidized at the anode surface.

Indirect oxidation: Active chlorine or oxygen species generated by the anode oxidize pollutants in solution.

3. Advantages of Electrochemical Treatment

No secondary pollution – avoids sludge generation

Compact system design – suitable for decentralized treatment

Adjustable oxidation intensity – flexible control via current density

Applicable to complex wastewater – effective for pharmaceuticals, electroplating, dyeing, and petrochemical industries​​​​​​​

Applications of Titanium Anode in Sewage Treatment
1. Industrial Wastewater Treatment

Industries such as electroplating, metallurgy, chemical production, pharmaceuticals, and textile dyeing often generate complex wastewater containing heavy metals, ammonia nitrogen, and organic compounds.
Titanium anode for sewage treatment effectively oxidizes and decomposes these contaminants, ensuring treated water meets discharge or reuse standards.

2. Municipal Sewage Purification

Municipal sewage contains a large volume of biodegradable organic matter and pathogens. Titanium anode-based systems help improve BOD/COD removal efficiency and sterilize the effluent without chemical additives.

3. Landfill Leachate Treatment

Leachate is highly concentrated wastewater with complex organic and inorganic pollutants. Titanium anodes provide a powerful oxidation process that converts recalcitrant organics into simpler compounds.

4. Decolorization and Deodorization

In dyeing and printing wastewater, titanium anodes are used to oxidize dye molecules, eliminating color and odor effectively through electrocatalytic reactions.

5. Water Reuse and Recycling

By integrating titanium anodes into advanced oxidation processes (AOPs), treated water can be reused for cooling systems, irrigation, or production processes — promoting sustainable resource utilization.

Advantages of Titanium Anode for Sewage Treatment
1. High Electrochemical Stability

Titanium anodes can operate under high current densities without significant degradation, maintaining stable potential and long service life (typically >10,000 hours).

2. Excellent Corrosion Resistance

The oxide coating provides strong protection against acidic, alkaline, and chloride environments, making it ideal for industrial wastewater applications.

3. Energy Efficiency

With a low overpotential for oxygen evolution, titanium anodes reduce overall power consumption during electrolysis, improving energy efficiency.

4. Maintenance-Free Operation

The robust coating minimizes maintenance needs, lowering system downtime and operational costs.

5. Environmentally Friendly

Unlike chemical oxidation methods, electrochemical treatment using titanium anodes produces no chemical sludge or harmful by-products.

Titanium Anode in Electroplating Wastewater Treatment Case Study: 

A leading electroplating factory in China faced strict environmental regulations regarding chromium- and cyanide-containing wastewater. After introducing a titanium anode electrochemical oxidation system, the company achieved:

COD reduction: from 1200 mg/L to <100 mg/L

Cyanide removal efficiency: 99.8%

Chromium(VI) reduction: complete elimination

Operating cost: reduced by 35%

The titanium anode system proved durable, with stable performance over 3 years of continuous operation, demonstrating the long-term economic and environmental benefits.

Product production process

Why Choose Us

1. Research and Innovation

We combine 17 years of expertise with cutting-edge research to provide innovative and efficient titanium anode solutions. Our dedicated R&D team ensures continual product improvements to meet evolving customer needs.

2. Excellent Reputation

Trusted by clients across industries, our Titanium anode for sewage treatment reflect the high standards synonymous with Baoji City ShenAo Metal Materials Co., Ltd. We pride ourselves on delivering consistent quality and exceptional service.

3. Striving for Excellence

From small-batch orders to large-scale productions, we uphold strict quality control and precision in every stage of manufacturing, ensuring reliability and timely delivery.

4. Customization Services

Understanding the unique needs of our clients, we offer tailored solutions, from dimensions to coatings, ensuring our products fit seamlessly into diverse applications.

5. Comprehensive After-Sales Support

We prioritize customer satisfaction by offering timely assistance, addressing concerns, and providing guidance for optimal product use.

6. OEM Services

Our OEM capabilities allow clients to design and label products that meet their brand specifications while benefiting from our advanced manufacturing techniques for titanium anodes for sewage treatment.

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Baoji City shenAo Metal Materials Co., Ltd. was founded in 2008 and is located in the "China Titanium Valley" Shaanxi Baoji High tech Industrial Development Zone. It focuses on the research and production of non-ferrous metal composite materials, precious metal coated titanium anodes (DSA), and titanium cathode products. Based on mature bimetallic explosive welding technology and advanced active coating manufacturing process, relying on strong resources in the Chinese titanium valley industry and the processing and manufacturing capabilities for bidding for the Olympics, we accurately and timely meet customer needs and create value for customers; Leading the development of energy-saving and environmentally friendly metal composite materials products through technological innovation, and continuously improving to meet customers' demand for long-life titanium electrodes.

The company has established close partnerships with hundreds of non-ferrous metal equipment manufacturers and electrochemical application enterprises, and has been designated as a long-term high-quality supplier.

The company has established research and development, production, and marketing departments, with strict process technology quality and testing standards to ensure reliable products and fast delivery efficiency to global customers.

We provide a variety of customized services, mainly for the followingWe provide a variety of customized services, mainly for the following：

Waterjet Cutting 
Laser Cutting 
Welding 
Plasma Welding 
Polishing 
Press 
Hydraulic straightening machine
Bending 
Drill Press 

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FAQs

Q1: How long do titanium anodes last in sewage treatment systems?
A1: Service life ranges from 3 to 10 years, depending on operating conditions and maintenance.

Q2: Are your anodes suitable for high-salinity environments?
A2: Yes, our titanium anodes exhibit excellent corrosion resistance in chloride-rich environments, such as seawater desalination.

Q3: Can I customize the size and coating of the Titanium anode for sewage treatment?
A3: Absolutely! We offer full customization to match your specific requirements.

Q4: How do I maintain the anodes to extend their lifespan?
A4: Regular cleaning to remove buildup and avoiding exposure to extreme pH levels will help maintain optimal performance.

Contact Details

For inquiries or to request a quote about titanium anodes for sewage treatment, please contact us:

Name: Baoji City ShenAo Metal Materials Co., Ltd.
Address: Wenquan Village Industrial Park, High-Tech Zone, Baoji City
Contact Person: Wang Shujuan
Phone: +86 18729731603
Fax: +86 917-3380538
Email: zh@baojiti.com.cn

We look forward to partnering with you and providing high-performance titanium anode solutions for your sewage treatment needs!