Product Overview
Ehisen MMO Titanium Anode is the core electrode of the electrolysis module in ballast water treatment systems (BWTS). Using high-purity titanium (Gr1/Gr2) as the substrate and a RuO₂-TiO₂ mixed metal oxide (MMO) coating, it generates active chlorine (HClO / ClO⁻) in situ through seawater electrolysis, inactivating harmful aquatic organisms, bacteria and pathogens - helping the system meet the IMO D-2 discharge standard.
Key Specifications at a Glance
|
Item |
Value |
|
Substrate |
Titanium Gr1, Gr2 (ASTM B265) |
|
Coating |
RuO₂-TiO₂ MMO, 8–20 μm (customizable) |
|
Shape |
Solid plate, mesh, customized |
|
Dimensions |
Customized according to drawings |
|
Coating service life |
Long-life guarantee (varies with operating conditions) |
|
Design service life |
Long design service life |
Typical applications
ship ballast water treatment systems
In the BWTS electrolysis module, the MMO titanium anode electrolyzes seawater to generate active chlorine (HClO / ClO⁻) in situ, inactivating bacteria, algae and invasive aquatic organisms so that discharged ballast water meets the IMO D-2 standard. Key advantages: high chlorine-evolution efficiency with low power consumption; dimensionally stable DSA performance under continuous operation; excellent seawater corrosion resistance; long service life with low maintenance.
Customer Pain Points & Solutions
Buying an anode is not buying a metal plate - it is buying compliance, uptime and predictable service life. Here is what our customers care about most, and how we answer each concern.
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|
Customer Pain Point |
Ehisen Solution |
Supporting Evidence |
|
1 |
Compliance risk: failing IMO D-2 means failed surveys and detention risk |
Disinfection efficiency above 99.9% with in-situ active chlorine generation; coating recipe tailored to your water quality |
Disinfection efficiency >99.9%; works across seawater 3.0–3.5% and brackish 0.3–0.5% salinity |
|
2 |
Short electrode life: frequent drydocking and replacement costs |
Optimized precious-metal loading keeps the coating active at high current density |
Long-life coating verified by accelerated life testing; long design service life |
|
3 |
Corrosion in harsh marine environments, water contamination |
High-purity titanium substrate per ASTM B265, DSA structure, uniform 8–20 μm coating |
Excellent corrosion resistance in continuous seawater operation |
|
4 |
Hard-to-fit retrofits: dimensions and voltage never match |
Plate, mesh or special shapes; dimensions, coating thickness and working voltage tailored to your electrolyzer |
Customized according to drawings; fast sampling for type testing |
|
5 |
High lifecycle cost and power consumption |
Stable chlorine-evolution potential and DSA structure reduce maintenance frequency |
Fewer replacements and lower maintenance, reducing owners' operating costs |
Working Principle
When current is applied, chloride ions (Cl⁻) are oxidized at the anode surface to chlorine (Cl₂), which reacts with water to form hypochlorous acid (HClO) and hypochlorite (ClO⁻). These active chlorine species rapidly kill or remove harmful microorganisms. The DSA structure ensures stable electrocatalytic performance under high current density and continuous operation.
Product Features
Feature
Description
High-efficiency disinfection
Generates active chlorine in situ to inactivate bacteria, algae and invasive aquatic organisms.
Long-term durability
High-purity titanium substrate with RuO₂-TiO₂ coating ensures excellent corrosion resistance in harsh marine environments.
Reliable operation
Dimensionally stable anode (DSA) structure provides stable electrocatalytic performance and long service life.
Flexible customization
Solid plate, mesh or special shapes; dimensions and coating thickness tailored to different electrolysis systems
Cost-effective
Reduces maintenance and replacement frequency, lowering operating costs for shipowners.
Products Description
| Single | Specification |
| Product Name | High-Purity Customizable MMO Titanium Anode Plate for Ship Ballast Water Treatment |
| Brand | Ehisen |
| Substrate | Titanium Gr1, Gr2 (ASTM B265) |
| Coating Material |
RuO₂-TiO₂ mixed metal oxide |
| Coating Thickness | 8–20 μm (customizable) |
| Shape | Solid plate, mesh, customized |
| Dimensions | Customizable according to drawings |
| Coating Service Life | Long-life guarantee (varies with operating conditions) |
| Design Service Life | Long design service life |
Note
actual coating service life varies with salinity, current density and maintenance; figures are indicative ranges under recommended operating conditions. Contact us for a life assessment based on your conditions.
Technical Parameters
|
Parameter |
Value |
|
Current Density |
0.3–3.0 mA/cm² (3–30 A/m²) |
|
Working Voltage |
5–10 V |
|
NaCl Concentration |
Seawater approx. 3.0–3.5%; brackish/fresh water 0.3–0.5% |
|
Working Temperature |
5–40 °C |
|
Operating Pressure |
0.2–0.6 MPa |
|
Disinfection Efficiency |
Above 99.9% |
Recommended Selection Guide
Three inputs decide the right anode: salinity, target current density, and required service life. Use the guide below to match your operating conditions - or simply send us the three values and we will confirm the selection for you.
Standard seawater
Salinity 3.0–3.5%, current density 3–30 A/m² → RuO₂-TiO₂ coating
Gr1/Gr2 substrate → High chlorine-evolution activity, long-life coating
Compact modules at high current density
Current density above 30 A/m² → Optimized RuO₂-TiO₂ (higher precious-metal loading),
Gr1/Gr2 → Slower coating deactivation, stable life at high load
Brackish or fresh water
Salinity 0.3–0.5% → Customized MMO formulation
Gr1/Gr2 → Maintains chlorine-evolution efficiency at low salinity
Long-life, low-maintenance requirement
：Target long design service life → Customized MMO (coating thickened to 15–20 μm, optimized loading)
Gr1/Gr2 → Extended replacement interval, lower lifecycle cost
FAQ
Are titanium electrodes suitable for all types of ballast water treatment systems?
Yes, they can be integrated into different types of systems.
What is the lifespan of titanium electrodes?
We provide a long-life guarantee for the coating. Actual service life varies with water quality, current density and maintenance - share your operating conditions and we will assess the expected life for your project.
Are there specific maintenance requirements?
Regular cleaning and inspection to remove dirt or scale.
Yes, they comply with relevant international standards for ballast water treatment, and the substrate follows ASTM B265.
Do titanium electrodes comply with international standards?
Yes, they comply with relevant international standards for ballast water treatment, and the substrate follows ASTM B265.
Can you produce according to our drawings? Can we get samples?
Yes. Send us your drawings and operating conditions (salinity, current density, dimensions); samples are available for type testing and evaluation.
What information do you need for a quotation?
Three values are enough for a first selection proposal: water salinity, target current density, and required dimensions or drawing.
Why Ehisen ?
Ehisen is based in Baoji, Shaanxi - China's "Titanium Valley" - and specializes in insoluble precious-metal-oxide coated titanium anodes. We control the full chain from Gr1/Gr2 titanium substrate selection to coating formulation and sintering, supporting OEM/ODM customization for ballast water, chlor-alkali, cathodic protection and other electrochemical applications.
Substrate traceability: Gr1/Gr2 titanium per ASTM B265, mill certificates available.
Batch inspection: coating thickness and adhesion checked for every batch.
Life verification: accelerated life testing to verify coating service life.
Send us your drawing or just three parameters - salinity, current density, dimensions - and get a customized selection proposal and quotation within 24 hours.
Our address
No. 369, Gaoya Industrial Park, Weibin District, Baoji City, Shaanxi Province, China 721013
Phone Number
+86 132 0968 8116
jennie@ehisen-anode.com
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