Application of electrolysis technology to produce clean water

(Baonghean) - Water electrolysis technology is now widely applied in life and agricultural and industrial production in advanced countries, including Japan and some Southeast Asian countries. Electrolyzed water is created by electricity and chemical reactions, so it has many advances compared to conventional water filtration technology. In Japan for the past 10 years, electrolyzed water has been used daily, contributing to environmental protection, agricultural production, health care, and industry.

In Vietnam, most of the electrolyzed water is imported from abroad, and there is no factory producing this product to supply the market. From that reality, after the process of researching, surveying and evaluating the current status of clean water use, recently, JWS TECNICA Vietnam Joint Stock Company has cooperated with Japanese experts to invest in building a new generation electrolyzed water factory at Nghi Phu Industrial Park (Vinh City). The project is expected to be implemented in 2 phases: phase 1 (from August 2014 to August 2015); phase 2 (expected to start from August 2015), with a total investment of more than 8 billion VND. This is a model applying advanced electrolysis technology researched by Japanese experts and installing equipment for each enterprise and factory.

This electrolysis method has many advantages over current methods, because the electrolysis tank structure is simple, easy to operate, and has high performance. Mr. Bui Dang Ty - project representative in Vietnam said: One of the characteristics of electrolysis technology is the very high efficiency to prepare hydrogen from water by chemical method, first of all, it requires a boiler that can withstand large pressure, which is expensive. If using the electrolysis method, only a direct current of 1.2V (equivalent to 1 dry chopstick battery) is needed to create a stable amount of water. Compared with the salt electrolysis method, the electrolysis tank through salt electrolysis can only create acidic and alkaline electrolyte water. Acidic has a pH (hydrogen ion index) of about 2.7, alkaline has a pH of about 11.5.

Normally, people distinguish between acidic water used for disinfection and alkaline water used for cleaning. However, these products often contain very high concentrations of salt residue (which is dissolved in raw water as an electrolyte). On the contrary, the new generation of electrolyzed water researched by Japanese experts almost has no salt residue. The JWS electrolysis tank is made with a completely different structure from the traditional type, with 1 machine that can electrolyze all three types: water electrolysis, salt electrolysis, and metal electrolysis. Water electrolysis technology is effectively applied, especially in medicine, such as treating external wounds, cleaning and disinfecting during surgery, care, post-surgery, sterilizing instruments, washing and disinfecting hands, treating ulcers, cleaning and disinfecting in hospitals. And treating polluted environments from hospital waste, slaughterhouses...

For example, when electrolyzing wastewater from slaughterhouses containing many impurities, use alkaline electrolyzed water with pH 13.0. Add heated alkaline electrolyzed water (about 600C) to the wastewater to control the growth of microorganisms. After controlling with strong alkaline electrolyzed water, use additional acidic electrolyzed water to control the decomposition of microorganisms that cause bad odors, and at the same time, transform the components of odor-causing substances produced by bacteria such as fatty acid ions, acetic acid ions into soap and glycerol, thereby eliminating the cause of bad odors.

The project representative added: The market for this product will be very open in the near future, when the quality of life is improved, people's demand for using electrolyzed water in daily life as well as serving agricultural and industrial production... However, in the immediate future, the company will serve the medical field (disinfection, infection prevention, treatment), gradually moving towards application in environmental treatment (deodorization, pollution), agriculture (soil improvement, increasing productivity and safety for crops and livestock), and daily life (drinking water, cosmetics).

Hopefully, when the factory comes into operation, it will improve the efficiency of clean water production, improve the environment and protect public health. Therefore, the project is closely directed by the Vinh City People's Committee and can be widely deployed in the near future.

Thanh Hoa