Electrochlorination | Kalf Engineering

Electrochlorination specialist - KALF Engineering provides water treatment solutions and has many years of experience in projects, both in Asia and internationally. Our head office is located in a research hub, Science Park II with our own research and engineering team. Based locally, KALF is a proud Singapore brand and is committed to certification under IS0 9000 and OHSAS 18001 worldwide standards for quality.

We have also worked with many international partners in Abu Dhabi, Oman, China and Korea for Electrochlorination projects in power stations, offshore platforms as well as municipal waters. KALF has built its reputation in providing quality products while providing a better service to our customers. Moreover, we manufacture our very own elysisPURE electrolyser systems locally as well.

In addition, KALF is backed by a strong financial standing with healthy credit records which is necessary to complete huge turnkey projects successfully.

KALF is constantly working towards more advanced technology in electrochlorination with the promise of bright future ahead. We will continue to grow in strength and strive to be the market leader in the next 5 years’ time with our current rapid growth.

KALF Electrochlorination Management Systems

KALF is constantly working towards more advanced technology in electrochlorination with the promise of bright future ahead. We will continue to grow in strength and strive to be the market leader in the next 5 years’ time with our current rapid growth.

Innovative Electrochlorination Technology

Kalf Engineering are experts in the area of environmentally friendly electrolytic water disinfection. Through extensive R&D (research & development), we are able to offer solutions covering a wide range applications, with our well established product, SKDisinfector, for application in different areas:

Offshore & Marine
Legionella Prevention
Municipal Water Treatment
Power Generation
Swimming Pools
Air Conditioning and Humidifiers
Desalination & Waste Water Treatment
Mobile Drinking Water Disinfection
Paper Mills

What is Electrochlorination?

elysisPURE series Electrochlorination Generator produce the disinfectant sodium hypochlorite from sea water or salt water (Brine) on your own site.

Sodium hypochlorite is a chemical compound with the formula NaOCl.

NaOCl solution is commonly known as bleach and is frequently used as a disinfectant or bleaching agent.

Generation Principle

Sea water or refined salt is mixed with softened water in the saturator to from saturated brine. It is diluted to 3% by softened water and injected into the electrolyzer. The solution is then electrolyzed with direct current (DC power).

The anode produced is chlorine gas and the cathode produced is sodium hydroxide and hydrogen. These two substances react with each other to form sodium hypochlorite solution.

Electrochlorination Plant

Within the elysisPURE Electrolyzer, the seawater or brine solution, which is a good conductor of electricity, supports a current applied between the positive and negative electrodes, thus electrolyzing the sodium chloride solution. This results in chlorine (Cl2) gas being produced at the positive electrode (anode), while sodium hydroxide (NaOH) and hydrogen (H2) gas is produced at the negative electrode (cathode). The chlorine further reacts with the hydroxide to form sodium hypochlorite (NaOCl).

More technical information about electro-chlorination >>

Why Onsite Electrolytic Chlorination With 0.2-0.8% NaOCl Solution

The employment of SK-CLE system fulfils the hygienic requirements and ensures a safe and economic operation.


Avoidance of transport, storage, handling and dosing of dangerous chlorine gas or highly concentration chlorine solution.


On- site production and notably longer Stability of products.


Saving on expensive chlorine deliveries and safety expenses.

Equipment Technology

Adjustment to requirement variations, water and system parameters and local weather conditions.

Process Automation

Safe operations, reduction in personnel.

More information about our electro-chlorination generators >>

elysisPURE Series

Sodium Hypochlorite Generator Feed From Seawater or Brine

KALF is the market leader in the on-site generation of sodium hypochlorite from fresh water, having over 25 installations worldwide. The brand of elysisPURE on-site sodium hypochlorite generating systems range in capacity from 24 to 48,000 kg/day of chlorine equivalent and generate a 0.2-0.8% sodium hypochlorite solution using three common consumables: Salt, water and electricity.

Depending on application or site special needs, elysisPURE systems are available as skid-mounted or component-based systems. The skid-mounted systems are fully operational and generating sodium hypochlorite within short period.

elysisPURE systems had been used for bio-fouling control in power plants, cooling towers, liquefied natural gas (LNG) terminals, offshore platform and desalination facilities, as well as coastal installations using seawater for cooling or other process needs all over the world.

elysisPURE series Electro-Chlorinator is a alternative disinfection system for small or large water treatment systems. They will found it beneficial because of its cost-effectiveness, easy to operate and eliminates potentially dangerous handling and storage problems associated with other types of disinfection practices. On-site Sodium Hypochlorite (NaOCl) generation requires only sea water and electricity to produce sodium hypochlorite. Sodium Hypochlorite generated on-site always maintains its strength, unlike conventional 12% to 15% hypochlorite purchased, which would be degraded over time.


Advantages | Seawater-based Industrial Electrochlorination System

Continuous process and produce consistent NaOCl quality (No down time required for regeneration process and simple operation).
Fully insulated – no exposed DC busbar or electrical connections for greater personnel safety.
Cost effective, reliable.
Forced air hydrogen gas dilution and purging.
Titanium with DSA coating (platinum-Iridium) on anodes for increased efficiency.
Integral voltage monitoring.
Reduce facility requirements.
No Hazardous waste stream.
Best use of space (i.e. Modularly built, easy expansion etc)
On line monitor control.

Advantages | Brine-based Industrial Electrochlorination System

Anodes used in our Electrolyzer cells are Titanium with DSA coating series (platinum-Iridium)
The anode substrate used are of Titanium Plates
Our unique design of electrolyser ensures easy removal of Hydrogen
Electrochlorinators based on elysisPURE Brine series are highly economical and use lesser power & salt
There is no hazardous waste stream
Best use of space (i.e. Modularly built, easy expansion, etc.)
On line monitor control

Electrochlorination Project Management And Engineering Services

KALF provides full operation and maintenance solutions to water disinfection through Electrochlorination. In depth of commitment and latest knowledge of electrochlorination equipment makes KALF the most sought after disinfection specialists, offering range of maintenance capability and service, under flexible, performancebased contract structures.

KALF engineering involvement with utility and industrial based projects over the past few years has ensured we understand the requirements and procedures of both municipal and corporate organisation, along with the various consultants associated with the scope of work. Our project responsibilities therefore incorporate:

Site surveys
Document / Contract Assessment
Design / Proposal
Drawing and Specifications
Planning and Reports
Manufacturing and Assembly of Equipment
Mobilisation to Site
Installation and Commissioning
Hand over

Our operation and maintenance staff apply high and time tested operating standards. They undergo rigorous training, before undertaking the maintenance task. This helps us to offer the best service to our customers. Monthly training updates our staff about the latest information on the operation and maintenance of Electrochlorination equipment.

Our experts will train your maintenance staff on operation and maintenance of Electrochlorination equipment.

We offer repair services to Electrochlorinators.

Annual Maintenance contract with spare parts for On-site Sodium Hypochlorite Generator.

Operation and maintenance services to Electrochlorinator.

We provide refurbish service to the Electrolyzer.

More information about our projects >>

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News & Articles

21 May 2014

Join us at IndoWater 2014 in Surabaya Grand City Convex. It is one of biggest Expo for fast growing water and wastewater industry in Indonesia. 

18 March 2014

KALF participated in AsiaWater 2014, the largest integrated water resource management event in Asia, held in KLCC. 

Research, Design & Development Center

10, Science Park Road, #03-03,
The Alpha, Singapore Science Park II,
Singapore 117684



25 Changi North Rise
Singapore 498778


Contact Detail

Tel: +65 6449 1677  |  Fax: +65 6778 1160
Email: sales@kalf.sg  |  Website: www.kalf.sg

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