Sodium Hypochlorite Generator

sodium hypochlorite generator product 03
sodium hypochlorite generator product 01
sodium hypochlorite generator product 02
sodium hypochlorite generator product 04
sodium hypochlorite generator product 03
sodium hypochlorite generator product 01
sodium hypochlorite generator product 02
sodium hypochlorite generator product 04

Sodium hypochlorite generators produce low strength disinfectants on demand through the electrolysis of brine solutions. On-site hypochlorite generation systems use only salt, water and electricity to safely generate sodium hypochlorite on demand.

Designed to replace liquid chlorine delivery and chlorine tank storage in most water treatment applications, NaClO generators produce a strong oxidizing solution that kills Staphylococcus aureus and E. coli organisms as well as other harmful pathogens.

How does sodium hypochlorite generator work?

An on-site sodium hypochlorite generation system electrolyzes diluted brine to produce a low-strength sodium hypochlorite solution for dosing. The system typically includes brine preparation, an electrolytic cell, a hypochlorite storage tank, hydrogen ventilation and a control unit. Product concentration and system configuration depend on the selected model.

Sodium hypochlorite generator standard configuration model diagram
Sodium hypochlorite generator standard configuration model diagram

The sodium hypochlorite generator alleviates the safety concerns associated with the storage and use of bulk sodium hypochlorite, chlorine tablets or chlorine gas. By generating chlorine on site, the generator produces sodium hypochlorite at a significantly lower cost than purchasing hypochlorite externally, and hypochlorite stays fresh rather than degrading in storage. Ideal applications range from drinking water disinfection and the agri-food and beverage industry to other commercial industrial applications.

Feed water is softened to reduce calcium and magnesium deposits in the electrolytic cell. Refined salt is dissolved to prepare brine, which is metered and diluted to the specified feed concentration. Direct current drives electrolysis: chloride ions are oxidized at the anode, while water is reduced at the cathode to form hydrogen and hydroxide ions. Chlorine reacts with hydroxide in the solution to form hypochlorite. The overall process also produces hydrogen, which must be removed through the designed ventilation system.

Anodic reaction: 2Cl⁻ → Cl₂ + 2e⁻

Cathodic reaction: 2H₂O + 2e⁻ → H₂↑ + 2OH⁻

Overall reaction: NaCl + H₂O → NaClO + H₂↑

Available chlorine expresses oxidizing capacity as an equivalent mass of chlorine gas (Cl₂). On this basis, 1 g of pure sodium hypochlorite (NaClO) is equivalent to approximately 0.953 g of available chlorine. This is a chemical equivalence, not a statement of the solution concentration.

Process flow chart of sodium hypochlorite generator
Process flow chart of sodium hypochlorite generator
Schematic diagram of generator electrolyzer
Schematic diagram of generator electrolyzer
Large sample drawing of generator electrolyzer
Large sample drawing of generator electrolyzer

KUOSI is a manufacturer and supplier of on site sodium hypochlorite generator in China. Feel free to contact us for a quote on sodium hypochlorite generator systems.

Technical indicators

  1. Dilute brine concentration: 3%or directly use seawater
  2. Consumption of available chlorine salt per 1kg: <3.2Kg
  3. Power consumption per 1kg of available chlorine:<4.0kwh.
  4. Available chlorine concentration in the preparation solution: 6000-9000ppm(0.6%-0.9%), current efficiency: >78%
  5. Electrode materials: pure titanium materials(cathode, anode, fasteners), anode protective coating: mixed formula of rare and precious metal oxides such as ruthenium and iridium
  6. Disinfectant sterilization rate: 99.9%
  7. Service life of the electrolytic cell: The electrolytic cell is made of high anti-corrosion PMMA plexiglass and has a service life of more than 20 years
  8. Automatic control level: DSP console centralized control, large-scale system with remote monitoring and operation.

Features

  1. Intelligent algorithm prompts electrode life and acid cleaning cycle
  2. Access to the Internet of Things: remote intelligent identification and management, equipment failure warning and remote processing
  3. Intelligent control: automatic control, unattended, big data information collection
  4. Modular design: modular integrated equipment, fast and convenient equipment installation and maintenance
  5. High efficiency and low power consumption: low salt consumption, low power consumption, high current efficiency, high product liquid stability
  6. Safety and stability: corrosion-resistant materials + special coating, higher service life (normal service life of cathode > 20 years, normal service life of anode > 5 years), long-term stable operation

Applications

  • Municipal waterworks
  • Independent water suppliers
  • Industrial wastewater plants and process water
  • Cooling towers
  • Swimming pools
  • Water reuse
  • Food processing
  • Petrochemicals
  • Power and energy
  • Hospital wastewater

Customer site cases

  • Sodium hypochlorite generator field case diagram 01
  • Sodium hypochlorite generator field case diagram 02
  • Sodium hypochlorite generator field case diagram 03

FAQ

Sodium hypochlorite generator is a kind of water treatment disinfection equipment, the equipment with salt water as raw material, through the electrolytic reaction to produce sodium hypochlorite solution.

Sodium hypochlorite (NaClO, also written NaOCl) is a chemical compound commonly used in liquid chlorine bleach. Commercial liquid bleach is an aqueous formulation containing sodium hypochlorite and other ingredients for stability.

Bleach is a general term for products used to remove colour or disinfect. Some bleaches contain sodium hypochlorite; others use different active ingredients. Calcium hypochlorite products are chemically distinct from sodium hypochlorite solutions.

Check the product label or safety data sheet to identify the active ingredient and its concentration before selecting a bleach for a particular application.

Sodium hypochlorite solution gradually loses available chlorine during storage. Its useful storage life depends on concentration, temperature, exposure to light, impurities and storage conditions. Use the solution within the supplier’s recommended storage period and verify available chlorine when required for dosing. The service life of the storage tank is a separate equipment specification.

When sodium hypochlorite is dissolved in water, it will hydrolyze to produce hypochlorous acid.

NaClO+H2O=HClO+NaOH

On-site sodium hypochlorite generation is a proven, cost-effective, reliable and safe alternative disinfection method. Field production of sodium hypochlorite is stable and easy to transmit; In addition, less chlorine is lost to the air due to better mixing and retention in the treated water. The on-site sodium hypochlorite generation system can reduce customers’ energy consumption and salt consumption by up to 20%. Reduce the risk by reducing the production of disinfection by-products and help provide water free of pathogenic bacteria.

Sodium hypochlorite is the compound NaClO, also written NaOCl. In a generator product solution, it is dissolved in water together with residual salt and other process constituents. Sodium chlorate (NaClO₃) is a different compound.

Electrochlorination uses direct current to electrolyze a sodium chloride solution. Chlorine formed at the anode reacts with hydroxide formed at the cathode to produce sodium hypochlorite in the solution. Hydrogen is also generated and is removed by the system’s ventilation arrangement.

Anode: 2Cl⁻ → Cl₂ + 2e⁻

Cathode: 2H₂O + 2e⁻ → H₂↑ + 2OH⁻

Overall reaction: NaCl + H₂O → NaClO + H₂↑

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