Water Treatment

Electrochlorination Systems for Ballast Water Treatment

Generate hypochlorite on-demand for biofouling control and ballast water treatment. IMO BWMC compliant with automated dosing and monitoring.

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On-Demand Hypochlorite Generation for Proven Biofouling Control

Electrochlorination systems generate sodium hypochlorite directly from seawater using electrolytic technology. This eliminates the need to store and handle hazardous chemicals while providing precise, automated biofouling prevention for cooling systems and ballast water.

Chemical-Free Storage

No hazardous chemical storage, handling, or disposal requirements

IMO BWMC Compliant

Meets ballast water management convention D-2 standards

Automated Dosing

PLC-controlled systems adjust production based on real-time monitoring

Cost Effective

Significant cost savings vs purchasing and storing chemicals

How Electrochlorination Works

Seawater Intake

Filtered seawater containing dissolved sodium chloride enters the electrolytic cell. Pre-filtration removes large particles and protects cell electrodes.

Electrolytic Generation

Applying controlled electrical current across electrodes oxidizes chloride ions to hypochlorous acid and hypochlorite ions. The process is highly efficient and environmentally safe.

Automated Dosing

Biocide is injected into cooling systems or ballast water. Real-time residual concentration sensors provide feedback to adjust production rate based on demand.

Environmental Discharge

Hypochlorite gradually breaks down into harmless chloride and water. Discharge meets all IMO and environmental regulations with no toxic residuals.

System Specifications & Technical Data

Seawater electrolysis technologyProduction capacity: 0.5 - 20+ kg/day hypochloriteModular cell design for scalabilityAutomated PLC control and dosingReal-time concentration monitoringResidual chlorine sensorsIMO BWMC compliantLow power efficiency: 3-5 kWh/kg Cl₂

System Specifications & Technical Data

Cooling Systems

Prevent biofouling in main engine, generator, and chiller cooling systems

Ballast Water

IMO BWMC D-2 compliant treatment and invasive species prevention

Sea Chests

Protect intake strainers and piping from biological growth

Heat Exchangers

Maintain thermal efficiency and prevent condenser tube blockage

Expandable Use

Future applications for additional seawater circuits

Cost Savings

Reduce operational expenses vs chemical purchasing

Frequently Asked Questions

What is electrochlorination and how does it work?
Electrochlorination is an electrochemical process that converts dissolved salt (sodium chloride) in seawater into sodium hypochlorite (chlorine) using electrolytic cells. Direct seawater electrolysis generates hypochlorous acid and hypochlorite ions, which disinfect and prevent biofouling in cooling systems, ballast water, and other seawater circuits. The process requires only electrical power and seawater – no chemical additives.
What are the advantages of electrochlorination over chemical dosing?
Electrochlorination offers multiple advantages: on-site generation eliminates chemical storage and handling hazards, reduced chemical costs (only electricity and seawater), precise automated dosing with real-time concentration control, no chemical compatibility or corrosion issues, IMO BWM Convention compliant for ballast water treatment, and reduced crew training requirements. Environmental discharge of hypochlorite breaks down to harmless chloride.
Is electrochlorination IMO compliant for ballast water treatment?
Yes, electrochlorination systems with proper design and certification are approved under the IMO Ballast Water Management Convention (BWMC). Our systems use advanced cell technology and automated residual monitoring to ensure consistent biocide performance. We provide systems that meet both D-1 (mechanical) and D-2 (biocide) compliance standards.
What applications does electrochlorination serve?
Electrochlorination protects multiple systems: main engine and auxiliary generator cooling systems, condenser tubes, heat exchangers, sea chest strainers, ballast water systems, piping networks, and specialized cooling for specialized equipment. The systems are highly scalable – from small yacht applications (0.5 kg/day production) to large container ships (10+ kg/day).
How much power does an electrochlorination system consume?
Power consumption varies with system size and production requirements. Typical installations consume 5-30 kW for hypochlorite production. Larger systems (10+ kg/day) may require 30-50 kW. Modern systems with optimized cell geometry and operating parameters are highly efficient, requiring approximately 3-5 kWh per kg of hypochlorite produced.
What maintenance do electrochlorination systems require?
Electrochlorination systems require routine maintenance including periodic cell cleaning (every 6-12 months depending on seawater quality), replacement of electrodes or cell packs (typically 2-5 year intervals), inlet strainer cleaning, and regular concentration/pH monitoring. Preventive maintenance extends system life and ensures consistent performance. We provide comprehensive training and spare parts support.