Secondary water supply domestic water tanks (pools) are common in urban water supply networks. They mainly provide water supply capacity and guarantee users' water needs, playing an important role in daily life. A study by Hua Qingfeng et al. mainly tested the corrosiveness and bactericidal properties of pure hypochlorous acid disinfectants on secondary water supply domestic water tanks (pools) of different materials during daily cleaning and disinfection, the cleaning wastewater generated after cleaning, and the working environment during the cleaning process.
When using chlorine, sodium hypochlorite or bleaching powder to disinfect water, it is hypochlorous acid that has a sterilizing effect. However, the amount of chlorine added in drinking water disinfection is only 1 to 5 mg/L, resulting in a very low concentration of hypochlorous acid produced by hydrolysis. In addition, chlorine is somewhat corrosive to metal objects. The experiment conducted by Hua Qingfeng et al. aims to explore the corrosiveness of hypochlorous acid to water tank materials, the bactericidal effect on bacteria and E. coli, the harm to operators, and the quality of the cleaning wastewater after cleaning when the concentration of hypochlorous acid reaches hundreds of mg/L during the cleaning process of the water tank.
Research data:
Hypochlorous acid (HOCL/HClO) is an efficient and safe disinfectant with the following characteristics:
Strong oxidizing property: Hypochlorous acid destroys the cell structure of microorganisms through oxidation, thus achieving a bactericidal effect. Its oxidizing ability is stronger than that of sodium hypochlorite, and it is environmentally friendly and does not produce harmful by-products.
Broad-spectrum sterilization: Hypochlorous acid can effectively kill microorganisms such as bacteria, viruses, fungi and algae, and is suitable for disinfection of various water environments.
No residual pollution : Hypochlorous acid decomposes in water to produce water and oxygen, leaving no toxic residues, which is environmentally friendly and non-irritating to the human body.
Wide range of applications: HOCL is not only suitable for medical wastewater treatment and swimming pool water treatment, but is also widely used in drinking water, aquaculture, agriculture and other fields.
Application case of hypochlorous acid disinfectant in water tank cleaning
According to existing research and practical application cases, hypochlorous acid disinfectants have shown good results in water tank cleaning:
Water tanks made of ceramic tiles, stainless steel and PE: Studies have shown that hypochlorous acid has no obvious corrosive effect on the inner walls of water tanks made of these materials, and its disinfection effect is better than sodium hypochlorite and other disinfectants.
Swimming pool water treatment : Sodium hypochlorite is the main dosage form for swimming pool water disinfection. It achieves efficient sterilization by destroying bacterial enzyme systems while keeping the water clean.
Recirculating aquaculture system: Hypochlorous acid is used for disinfection in recirculating aquaculture, which can effectively control the spread of pathogens and ensure water quality safety.
The use of hypochlorous acid disinfectant requires supporting production equipment and technical support:
Production technology: There are two ways to produce hypochlorous acid on the market: electrolysis of water and chemical method. Electrolysis of water can produce hypochlorous acid solution with a purity of nearly 99%, and it is easy to operate and has low cost. BLUEWAV uses exclusive diaphragm electrolysis technology, which has a long service life of the equipment, and the hypochlorous acid water is purer and has no residual salt.
Equipment safety: BLUEWAV hypochlorous acid generator meets hygiene requirements, including raw material selection, equipment performance and operating specifications, which can ensure the safety and effectiveness of the disinfectant.
Automatic control: BLUEWAV hypochlorous acid disinfection equipment is equipped with an automatic dosing device, which can realize unattended operation and improve operating efficiency.
Cost-Benefit Analysis of BLUEWAV Hypochlorous Acid Generator
Low operating cost: Small equipment investment, low operating cost, and no need for complicated maintenance.
Stable disinfection effect: Compared with other disinfectants (such as liquid chlorine and chlorine dioxide), the disinfection effect of hypochlorous acid is more stable and less affected by external conditions.
Environmental protection: The decomposition products of hypochlorous acid are water and oxygen, which will not cause secondary pollution to the environment and meet the requirements of green and sustainable development.
In conclusion
Based on the above analysis, pure hypochlorous acid disinfectant has high feasibility in the cleaning of live water tanks (pools). Its high efficiency of sterilization, environmental protection and economy make it an ideal water tank cleaning disinfectant.
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