Titanium anodes for wastewater treatment

Titanium anodes for wastewater treatment are advanced electrochemical electrodes designed for the efficient degradation, disinfection, and oxidation of pollutants in industrial and municipal wastewater systems. The anode uses Grade 1 titanium as a substrate, coated with a mixed metal oxide (MMO) coating, such as ruthenium oxide (RuO₂) and iridium oxide (IrO₂), forming a highly stable and conductive catalytic surface.

Compared to traditional electrodes such as graphite or lead, MMO-coated titanium anodes offer superior corrosion resistance, longer service life, and higher electrochemical efficiency. They are widely used in electrochemical oxidation, electrochlorination, and advanced oxidation processes (AOPs).

Working Principle of Titanium Anodes in Wastewater Treatment

Titanium anodes play a crucial role in electrochemical wastewater treatment systems, directly generating strong oxidants in water.

1: Electrochemical Oxidation

Under the application of current, MMO titanium anodes generate highly reactive hydroxyl radicals (·OH). These radicals can decompose organic pollutants, dyes, and toxic compounds into harmless substances such as CO₂ and H₂O.

2. Electrochlorination

In chlorinated wastewater, the anode generates active chlorine species (Cl₂, HOCl), achieving effective disinfection and sterilization.

3. Direct and Indirect Oxidation

Direct Oxidation: Contaminants are oxidized on the anode surface.

Indirect Oxidation: Active species oxidize contaminants in the solution.

This dual mechanism ensures highly efficient removal of COD, BOD, ammonia nitrogen, and color.

Types of Titanium Anodes for Wastewater Treatment

1. MMO-Coated Titanium Anode (Ru-Ir)

Most widely used

High cost-effectiveness

Suitable for general wastewater treatment

2. Platinum-Coated Titanium Anode

Higher conductivity

Stronger oxidation capacity

Suitable for high-end applications

3. BDD (Boron-Doped Diamond) Anode

Ultra-high oxidation potential

Suitable for difficult-to-treat wastewater

Higher cost, but superior performance

Advantages of Titanium Anodes in Wastewater Treatment

Long Service Life: 5-10 years under appropriate operating conditions

Strong Corrosion Resistance: Titanium substrate ensures durability in harsh environments

Energy Efficiency: Lower energy consumption compared to traditional electrodes

High Current Efficiency: Stable electrochemical performance

Low Maintenance Costs: Minimal electrode wear

Customizable Designs: Available in various forms such as plate, mesh, tubular, and rod shapes

Applications of Titanium Anodes in Wastewater Treatment

Electroplating Wastewater Treatment

Textile Printing and Dyeing Wastewater Treatment

Chemical Wastewater Treatment

Pharmaceutical Wastewater Treatment

Hospital and Medical Wastewater Treatment

Landfill Leachate Treatment

Mining and Metallurgical Wastewater Treatment

Titanium anodes are used to treat wastewater with high chemical oxygen demand (COD), high color, and toxic organic pollutants.

Product production process

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Technical Specifications

 

Parameter	Specification
Substrate	Grade 1 Titanium
Coating	RuO₂ / IrO₂ (MMO)
Shape	Plate / Mesh / Tube / Rod
Current Density	500–2000 A/m²
Coating Thickness	8–15 μm
Service Life	5–10 years
Operating Temperature	≤ 80°C
pH Range	1–14

Custom sizes and configurations are available upon request.

Case Study – Textile Wastewater Treatment

A textile dyeing and printing plant adopted MMO titanium anodes in an electrochemical oxidation system to treat high-color wastewater.

Results:

COD removal rate: 70–85%

Decolorization rate: >90%

Significantly improved biodegradability

Reduced chemical consumption

The system operated stably and had low maintenance costs, fully demonstrating the high efficiency of titanium anodes in industrial wastewater treatment.
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Why Choose Us

Advanced MMO coating technology (Ru-Ir system)
Strict quality control and coating uniformity
Strong bonding between coating and titanium substrate
Custom engineering solutions for different wastewater conditions
Fast delivery and global export experience

Our titanium anodes are designed to deliver long-term stable performance in demanding electrochemical environments.

FAQ
1: What is the lifespan of titanium anodes?

Typically 5–10 years depending on current density and operating conditions.

2: Can titanium anodes be customized?

Yes, we provide fully customized shapes, sizes, and coating formulations.

3: Are MMO anodes suitable for high salinity wastewater?

Yes, MMO titanium anodes perform well in chloride-containing environments.

Get a Quote

Looking for reliable titanium anodes for wastewater treatment?

Contact us today for:

Custom design solutions
Competitive pricing
Technical support

Email: zh@baojiti.com.cn

WhatsApp: +86-13636825659

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