// HELE TITANIUM · ELECTROCHLORINATION SOLUTIONS
Electrochlorination Systems for Seawater Disinfection
Engineered for seawater chlorination, cooling water disinfection, marine biofouling control, and on-site sodium hypochlorite generation. Hele Titanium provides MMO titanium electrodes, electrochlorination cells, coated titanium anodes, and system-ready electrode assemblies for reliable active chlorine production.
Principle of Operation
Electrochlorination Converts Chloride-Rich Water into Active Disinfection
Electrochlorination uses electrical energy to convert dissolved chloride ions in seawater or brine into active chlorine species for continuous disinfection, biofouling control, and water treatment.
Inside the electrolytic cell, MMO titanium electrodes drive the chlorine evolution reaction under controlled current. The generated oxidants help control biological growth in seawater intakes, cooling water circuits, marine systems, desalination plants, and sodium hypochlorite generation applications.
On-site active chlorine generation
Continuous biofouling and disinfection support
Reduced dependence on transported chemical dosing
Process Overview
How Seawater Electrochlorination Works
A seawater electrochlorination system uses MMO titanium electrodes inside an electrolytic cell to convert chloride-containing water into active chlorine species. The process depends on water chemistry, current density, electrode coating, cell geometry, and safe management of hydrogen by-product.
Seawater or Brine Enters the Cell
Chloride-containing water flows through the electrolytic cell at a controlled rate.
MMO Electrodes Drive Chlorine Generation
Coated titanium electrodes convert chloride ions into active chlorine species under DC power.
Active Chlorine Supports Disinfection
Generated oxidants help control biological growth in seawater intake, cooling water, marine, and process water systems.
Hydrogen By-Product Is Managed Safely
Hydrogen generated during electrolysis must be vented, diluted, or managed through proper system design.
View Detailed Electrochemical Reactions
Anode Reaction
Chloride ions lose electrons at the anode surface and form chlorine gas.
Cathode Reaction
Water is reduced at the cathode, producing hydrogen gas and hydroxide ions.
Secondary Reaction
The chlorine produced reacts with water to form hypochlorous acid, which contributes to sodium hypochlorite formation in the system.
SYSTEM CONFIGURATION
Typical Seawater Electrochlorination System
A typical electrochlorination system combines seawater or brine feed, MMO titanium electrodes, an electrolytic cell, DC power supply, hydrogen management, dosing control, and monitoring instruments to generate active chlorine on site.
System Components
- Seawater / Brine Feed
- MMO Titanium Electrodes
- Electrolytic Cell
- DC Power Supply / Rectifier
- Hydrogen Vent / Degassing
- Dosing & Control System
- Monitoring Instruments
- Active Chlorine Outlet
Configuration Note: Final system configuration depends on water source, salinity, flow rate, target chlorine output, scaling tendency, operating hours, installation environment, and safety requirements
Choose the Right Electrode Format for Your System
Different electrochlorination projects require different electrode geometries, flow paths, surface areas, and maintenance strategies. Hele Titanium provides multiple MMO titanium electrode formats to match seawater, brine, cooling water, marine, and sodium hypochlorite generation applications.
Concentric / Tubular Electrolytic Cells
Best For
Pipe-type flow-through systems, compact layouts, and seawater chlorination units.
Typical Use
Seawater intake treatment, marine systems, cooling water loops, and small-to-medium electrochlorination systems.
Buyer Note
Tubular or concentric designs can support compact installation and controlled flow through the electrode zone.
Plate-Type Electrolytic Cells
Best For
Continuous chlorine generation, larger treatment capacity, and modular system design.
Typical Use
Cooling water disinfection, desalination intake protection, and sodium hypochlorite generation systems.
Buyer Note
Plate-type cells provide scalable electrode area and can be configured for different output requirements.
High-Surface-Area Electrodes
Best For
Higher active surface area, improved current distribution, and compact chlorine generation systems.
Typical Use
Brine electrolysis, seawater chlorination, compact electrochemical reactors, and high-efficiency cell designs.
Buyer Note
Expanded mesh, perforated, or structured electrodes help improve active area and flow contact.
Custom Electrode Assemblies
Best For
Project-specific cell geometry, replacement electrodes, OEM systems, and retrofit applications.
Typical Use
Custom electrochlorination skids, marine anti-fouling systems, sodium hypochlorite generators, and special cell designs.
Buyer Note
Electrode size, coating, connection, and mounting can be customized based on system drawings and operating conditions.
Critical Challenges in Seawater Electrolysis
Electrochlorination systems must maintain stable chlorine generation while managing seawater variability, scaling risk, corrosion exposure, and hydrogen by-product safety.
Biofouling in Seawater Intake Systems
Seawater systems can experience biological growth that reduces flow, blocks equipment, and lowers heat transfer efficiency.
Hele Titanium Supports
MMO titanium electrodes and electrochlorination cells for on-site active chlorine generation and biofouling control.
Mineral Scaling in Electrolytic Cells
Seawater hardness, temperature, pH shift, and operating current can cause mineral deposits inside the cell.
Hele Titanium Supports
Optimized electrode geometry, MMO coating selection, polarity strategy support, and maintainable cell design.
Corrosion in High-Salinity Environments
High chloride levels, seawater exposure, and oxidizing conditions can damage unsuitable metals and unstable components.
Hele Titanium Supports
Corrosion-resistant titanium substrates, MMO coatings, custom titanium hardware, and seawater-compatible electrode assemblies.
Hydrogen By-Product Management
Hydrogen generated during electrolysis must be safely vented, diluted, or managed in accordance with system design.
Hele Titanium Supports
Electrode design support and system configuration guidance for safe hydrogen release and process integration.
Proven Across Seawater & Disinfection Applications
Electrochlorination electrodes and systems support applications where seawater disinfection, biofouling control, cooling water treatment, and on-site oxidant generation are required.
Marine & Offshore
Electrochlorination and MGPS support for seawater intake systems, offshore platforms, vessels, and marine cooling circuits.
Water Treatment & Desalination
Seawater chlorination and intake protection for desalination plants, drinking water systems, and pretreatment processes.
Power Plants & Cooling Water
On-site chlorination support for power plant cooling systems, heat exchangers, and industrial seawater circuits.
Industrial Seawater / Process Water
Electrochemical disinfection and oxidant generation for industrial plants using seawater, brine, or process water.
What We Need for an Electrochlorination System Review
To recommend the right MMO electrode, cell format, coating system, and configuration, please share as much project information as possible.
Water Source & Salinity
Seawater, brine, cooling water, diluted salt water, or process water, including chloride concentration if available.
Flow Rate
Treatment flow rate, circulation flow rate, or dosing flow requirement.
Target Chlorine Output / FAC Level
Required chlorine generation capacity, target free available chlorine, or dosing concentration.
Operating Conditions
Temperature, pH, pressure, conductivity, operating hours, and duty cycle.
Scaling & Water Quality Conditions
Hardness, calcium / magnesium level, suspended solids, scaling tendency, and pretreatment condition.
Installation Environment
Marine vessel, offshore platform, desalination plant, power plant, industrial facility, or skid-mounted system.
System Scope
Electrode only, replacement cell, complete electrolytic cell, skid system, or OEM electrode assembly.
Safety & Documentation Requirements
Hydrogen venting needs, control requirements, datasheets, inspection records, coating information, and project-specific documents.
Common Electrochlorination Engineering Questions
Quick answers to help procurement teams, water treatment engineers, and marine system integrators prepare an electrochlorination electrode or system inquiry.
What information is needed for an electrochlorination electrode quotation?
Can Hele Titanium customize electrochlorination cells?
Which MMO coating is suitable for seawater chlorination?
How do we manage scaling inside electrochlorination cells?
Can Hele Titanium provide electrodes for sodium hypochlorite generators?
What documents can be provided with electrode orders?
ELECTROCHLORINATION INQUIRY
Build Reliable Seawater Disinfection Systems
Tell us about your water source, salinity, flow rate, target chlorine output, operating hours, scaling risk, installation environment, and documentation needs. Our engineering team will recommend the right MMO titanium electrode, electrochlorination cell, or electrode assembly.
