On-Site Sodium Hypochlorite Generation Systems (OSHG)
A sodium hypochlorite generator is an efficient system that produces sodium hypochlorite on-site using simple raw materials, only salt, tap water (typically potable or preconditioned to control hardness), and electricity, eliminating the need for traditional bleach manufacturing and bulk chemical handling. Through an electrochemical process, the system electrolyzes a sodium chloride (NaCl) brine solution to produce chlorine (Cl) and sodium hydroxide (NaOH), which subsequently react in solution to form a sodium hypochlorite disinfectant (NaOCl) for water treatment applications.
The process also generates small amounts of sodium hydroxide, contributing to solution stability and cleaning solution effectiveness. With an integrated automatic control system, facilities can reliably produce sodium hypochlorite in just a few hours, ensuring consistent hypochlorite solution strength while optimizing performance. This on-site generation approach not only enhances safety and operational control but also delivers significant cost savings by reducing chemical procurement, transportation, and storage requirements.
Why use a sodium hypochlorite generator system?
A sodium hypochlorite generator (NaOCl) significantly reduces the safety risks associated with storing and transporting bulk chemicals such as liquid bleach, chlorine tablets, or chlorine gas. By generating chlorine via electrolysis for immediate conversion to sodium hypochlorite on-site, facilities achieve a safer, more controlled disinfection process while significantly reducing operating costs compared to purchasing pre-manufactured hypochlorite. Just as important, on-demand generation ensures the solution remains fresh and effective, minimizing the degradation that commonly occurs during storage of higher-strength commercial bleach. This makes the technology well-suited for a broad range of applications, including potable water disinfection, agriculture, food and beverage processing, and other commercial and industrial operations.
The Scienco SciCHLOR sodium hypochlorite generator is a compact, factory-tested system designed for reliable, on-site chlorine production. Each sodium hypochlorite generator unit is delivered as a fully integrated package, complete with an integral brine tank, chlorine storage tank, Scienco SciCELL electrolytic cell, control panel, and recirculation pump. The generation system is engineered to provide consistent, on-demand hypochlorite production while maintaining a small footprint, compatibility with commercially available salts that meet recommended purity specifications, and automated salinity control for stable output. Its design emphasizes simplicity, with low-cost, easily replaceable components and minimal maintenance requirements, resulting in reduced lifecycle costs.
At the core of the on-site sodium hypochlorite generation system is the advanced Scienco SciCELL technology, which converts saturated brine (approximately 26%) into a dilute sodium hypochlorite solution of up to 0.8% concentration. This concentration remains below the 1% hazardous material threshold, improving safety during storage and handling and supporting regulatory compliance. The system’s recirculating design continuously processes the solution to maintain uniform chlorine strength with minimal operator intervention, ensuring dependable disinfection performance.
Overall, the Scienco SciCHLOR sodium hypochlorite generator system delivers an efficient, cost-effective approach to chlorine generation, combining operational reliability with long cell life and straightforward maintenance. The result is a dependable, low-risk solution for facilities seeking consistent disinfection performance without the complexities of traditional chemical supply and storage.
Sodium Hypochlorite Generator Designed for Safer, More Efficient Operation
Ideal for On-Site Chlorine Generation Applications
Water treatment spans a wide range of industries, and on-site electrolysis provides a reliable, efficient method for producing sodium hypochlorite as needed. Our anode technology is specifically engineered for sodium hypochlorite generation and water electrolysis, delivering consistent performance across diverse operating conditions. Sodium hypochlorite (NaOCl) is a proven oxidizing agent used extensively for water purification, surface sanitation, bleaching, odor control, and disinfection. It is widely used in potable water systems and in sanitary and industrial wastewater treatment processes.
In applications such as swimming pools and cooling systems, sodium hypochlorite provides effective oxidation and disinfection with a lower likelihood of microbial resistance than many non-oxidizing biocides. It is particularly effective for controlling Legionella bacteria and can help manage biofilm when applied as part of a comprehensive water treatment program. At the core of the Scienco SciCHLOR system is the Scienco SciCELL electrolytic cell, designed to maximize efficiency and reliability.
This advanced technology is engineered to optimize energy consumption and reduce overall power demand, helping facilities lower operating costs while maintaining efficient chlorine production. Its intelligent design ensures that the on-site sodium hypochlorite generation system operates at peak performance without unnecessary energy waste. The Scienco SciCELL multi-pass scouring design continuously cleans the electrolytic cell during operation, significantly extending cell life and reducing maintenance requirements. This self-cleaning process minimizes scaling and buildup, ensuring long-term reliability and consistent system performance.
To further improve efficiency, the on-site sodium hypochlorite generation system automatically shuts down during periods of no chlorine demand. This power-saving capability reduces unnecessary operation, conserves energy, and helps extend the life of key system components. The result is consistent, on-demand sodium hypochlorite production with minimal operator intervention. Automated controls maintain stable output and reliable performance, allowing facilities to achieve effective disinfection with simplified day-to-day operation.
Typical Applications for Sodium Hypochlorite Generator Systems
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- Water recycling and reuse systems
- Large aquatic facilities and swimming pools
- Cooling towers and fire water systems
- Food and beverage processing
- Marine vessels and offshore oil platforms
- Oilfield injection systems
- Municipal water and wastewater treatment
- Hospitals, industrial, and commercial facilities
How the Scienco SciCHLOR On-Site Chlorine Generator Works
Sodium hypochlorite is made by passing a brine solution through an electrolytic cell where a chemical reaction takes place. The electrolysis process generates chlorine and sodium hydroxide from the brine solution, which then react in solution to form sodium hypochlorite. The content of the recirculation tank, or the tank that holds the hypochlorite, is continually pumped through the cell to build the concentration up to a minimum of 0.8% (8,000 PPM).
When this concentration is reached, typically after five (5) hours of run time, the hypochlorite is then ready for use. As hypochlorite is used from this tank, the contents are replenished with brine at the proper concentration. Because the solution is continually pumped through the Scienco SciCELL, its strength can be maintained near the typical 0.8%. A power-saving feature will shut off the power to the cell assembly when the hypochlorite is not in use. The pump will continue to operate. When the hypochlorite is only taken again from the tank, the power supply will start back up, and normal operation will resume.
This method is referred to as a recirculation method versus a flow-through or single-pass method. The single-pass method usually takes a small portion of the water being treated, adds salt to it, and runs that stream once through a cell before returning it to the water stream.
How does Scienco SciCHLOR Sodium Hypochlorite Generator work?
The Scienco SciCHLOR on-site chlorine generator operates in continuous recirculation, in which a brine solution is circulated through the SciCELL electrolytic cell assembly. As the solution repeatedly passes through the cell, sodium hypochlorite is progressively concentrated to a maximum concentration of 0.8%. Gases generated during the electrolysis process are safely vented to the atmosphere. Under normal conditions, the system achieves its rated chlorine concentration after approximately six hours of continuous operation, at which point the solution is ready for use.
The system is designed to operate in two modes, batch and continuous, both utilizing the same core electrolysis technology, with the distinction being how the finished product is managed:
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- Batch Mode: The solution is recirculated until the desired concentration is reached. Once achieved, the product tank is discharged into a separate storage or dosing tank. The system then refills and repeats the cycle to produce the next batch.
- Continuous Mode: After reaching the target concentration, sodium hypochlorite is continuously withdrawn from the product tank at a controlled, low flow rate. The system automatically replenishes and maintains the solution at the required strength. As the product is consumed, a refill sequence is initiated, fresh water enters the brine tank, displacing saturated brine into the product tank, where it is diluted to the correct concentration. Importantly, chlorine generation continues uninterrupted during this refill cycle, ensuring consistent output and system efficiency.
NSF/ANSI 61 Certified Sodium Hypochlorite Generator System Sizes (10-60 lb/day)
Scienco SciCHLOR sodium hypochlorite generator is a fully integrated, simple, and compactly designed system. The Scienco SciCHLOR system with SciCELL technology uses a recirculating method to produce optimum strength sodium hypochlorite solution in 10 lb (4.5 kg), 20 lb (9 kg), 40 lb (18 kg), and 60 lb (27 kg) NaClO/day sizes.
Scienco/FAST manufactures an NSF/ANSI/CAN 61 approved sodium hypochlorite generator (Scienco SciCHLOR) for use in treating drinking water and other disinfection applications. NSF/ANSI 61 is a health effects standard developed by NSF International that governs materials and products used in drinking water systems to ensure they do not introduce harmful contaminants into potable water. The standard applies to a wide range of components, including equipment used to generate or deliver treatment chemicals such as sodium hypochlorite. Certification to NSF/ANSI 61 is widely recognized and often required by state and local regulatory agencies across the United States and Canada for products used in potable water applications.
Scienco SciCHLOR Sodium Hypochlorite Generator
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- Scienco SciCHLOR 1.0 – 10 pounds (4.5 kg) of hypochlorite per day
- Scienco SciCHLOR 2.0 – 20 pounds (9 kg) of hypochlorite per day
- Scienco SciCHLOR 4.0 – 40 pounds (18 kg) of hypochlorite per day
- Scienco SciCHLOR 6.0 – 60 pounds (27 kg) of hypochlorite per day
Provides a Safe, Economic & On-Demand Production of On-Site Hypochlorite Generation Systems (OSEC)
To learn more about a brine maker system, visit What Is a Brine Maker? Definition, How It Works, and Applications.