This section provides an overview for ozone water generators as well as their applications and principles. Also, please take a look at the list of 23 ozone water generator manufacturers and their company rankings. Here are the top-ranked ozone water generator companies as of December, 2023: 1.Ｇuangzhou Chunke Environmental Technology Co.,Ltd., 2.Pure Aqua, Inc., 3.Veolia.
Figure 1. Characteristics of ozone
An ozone water generator is a device that generates low-concentration ozone in water from pure water or air.
Ozone is a molecule formed by the bonding of three oxygen atoms, and ozone water is an aqueous solution in which this ozone is dissolved in water. Ozone is highly oxidizing and reactive, so it reacts well with carbohydrates and breaks them down. This action is used for sterilization, deodorization, bleaching, etc.
Because of its high oxidizing power, ozone is used to remove germs and microorganisms and to decompose dirt. In addition, since ozone water returns to water and oxygen after use, it features high safety with no residual chemicals. For this reason, it is used in a wide range of fields, including food, food service, and medical care.
Ozone water generators are used for cleaning, sterilizing, and deodorizing food, and are also expected to maintain freshness.
Currently, it is also used to sterilize tap water, contributing to the reduction of strange odors and tastes compared to the old chlorine-only sterilization. Although ozone is harmful to the human body, it reacts with hydrocarbons present in the water to form oxygen molecules, and the remaining ozone that does not react is converted back to oxygen using activated carbon, so there is no ozone residue once it is distributed to homes. However, since ozone decomposes easily, disinfection with sodium hypochlorite is still used to disinfect tap water for safety reasons.
In addition, ozone is also used in the semiconductor, liquid crystal, and solar cell industries because it can remove metals and etch organic films by increasing the ozone concentration.
Figure 2. Types of ozone water generators
Ozonized water is produced mainly by electrical discharge into air or oxygen gas, electrolysis of water, and ultraviolet irradiation.
In the discharge type ozone generator, oxygen is converted to ozone by electrons produced by discharging oxygen-containing gas into the air.
Discharge ozone generators include the silent discharge type, corona discharge type, and creepage discharge type. The silent discharge type has the highest energy efficiency among existing ozone generators, and most large ozone generators are of this type. The corona discharge type has low-ozone generation efficiency and is used for small-scale ozone generators.
While ordinary electrolysis of water generates only oxygen and hydrogen, this type uses lead dioxide (beta type) or platinum as the electrode on the anode side to generate both oxygen and highly concentrated ozone. Since impurities in the water used as raw material may lead to side reactions and electrode degradation, pure water obtained using reverse osmosis, or ion exchange membranes, may be used as raw material.
The ultraviolet irradiation type generates ozone by irradiating oxygen-containing gas with ultraviolet light. When oxygen molecules are irradiated with deep ultraviolet light, which has a short wavelength among ultraviolet light, the oxygen molecules dissociate to produce oxygen atoms, which combine with other oxygen molecules to generate ozone.
In ozone generation by the ultraviolet type, ozone decomposition reactions occur in parallel, and the oxygen atoms produced in the decomposition reactions react with ozone to destroy it. Therefore, the efficiency and quantity of ozone generation are low, and it is used for small-scale sterilization.
Figure 3. Mechanism of action of ozone
Ozone is an unstable substance; in water, it reacts with the water to produce the stronger oxidant. The OH radical, which is unstable and electron-deficient, so it scavenges electrons from nearby organic matter, which in turn breaks down the bonds. This oxidative decomposition action causes inactivation of cell walls, cell membranes, intracellular enzymes and nucleic acids, and decomposition of odor- and stain-causing components, resulting in sterilization, deodorization, bleaching, and other effects.
Ozone water generators are machines that can sterilize and decontaminate by converting ozone water generated into a fine mist through a spray nozzle and directly spraying it on objects or circulating it around a room in the same way as a humidifier.
Since it can be easily transported by storing it in a small tank, it is effective for deodorizing and sterilizing facilities with numerous objects in a relatively small space, such as smoking areas, garbage dumpsters, and restrooms. Even in places where it is not possible to spray ozone water directly, the fine mist circulates and distributes, enabling excellent sterilization and decontamination in every corner.
When stored for use, ozone may partially decompose, but it is possible to maintain the necessary sterilizing and decontaminating ability by generating the water at a high concentration in advance of the jet.
Because of its high sterilizing effect, ozone water is used in the field of quarantine in pandemics of infectious diseases and biological disasters of bacteria and viruses such as foot-and-mouth disease and avian influenza. It is also used in decontamination such as hydrogen sulfide and other chemical disasters to clean the site, as well as various equipment and materials used in the decontamination process.
Ozone water produced by ozone water generators can be used in a wide range of applications, regardless of size or location, as it can be discharged from water trucks in place of ordinary water, or sprayed on objects to be sterilized or cleaned by hand-held fountains, etc.
The advantage of using ozone water generators for quarantine is that they can be generated on-site with water, air, and a power source, eliminating the need for stockpiling. Since it can be generated and used directly at the site of a pandemic or disaster, there are fewer restrictions on location and transport, and the major advantage is that it is harmless and can be drained directly into the sewage system since it breaks down into oxygen after a few hours.
*Including some distributors, etc.
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Ebara Technologies Inc., established in 1912, is a ANSI/ISO/ASQ 9001:2015 certified manufacturer and supplier of advanced vacuum and abatement systems. The company has 12 individual locations spread across three continents, catering to the semiconductor, photovoltaic, and R&D sectors. It operates in two distinct divisions - the Components Division and the Systems Equipment Division. The Components Division provides an array of products, including dry vacuum pumps, turbomolecular pumps, and exhaust line heaters. On the other hand, the Systems Equipment Division offers Chemical Mechanical Polishing (CMP) systems, advanced wafer plating systems, and bevel and backside cleaning treatment systems.
Pure Aqua Inc., founded in the United States since 2001, is a manufacturer and supplier of advanced water treatment solutions. Specializing in custom-engineered systems, the company serves a wide range of industries, including desalination, wastewater, and residential applications. Their global presence ensures seamless access to its wide-range products and services. They design and manufacture commercial and industrial reverse osmosis (RO) water treatment and purification systems with over 9,000 water purification systems built, including 2,000 customized systems. Their systems generates over 200 million gallon of purified water every day for more than 3,000 customers worldwide in over 200 countries.
Water-Right, founded in the United States in 1963, is a manufacturer of water treatment equipment. It provides a variety of commercial softening and conditioning systems, water filtration systems, and drinking water systems for almost any application through its CustomCare line of equipment aimed at residential, commercial, and industrial markets. The company also offers a state-certified, independent lab specializing in water testing and provides support to field technicians, plumbers, and the general public with all water treatment questions.
Pentair Aquatic Eco-Systems is a supplier of commercial Aquaculture systems and equipment in Florida. The company offers tanks and pumps and products for Aeration & Oxygenation such as air valves and compressors, Aquatic feed and feeders, Chillers and Heaters, Cleaning, Field and Hatchery supplies. The tanks are available in various materials and sizes like Fiberglass tanks, Polyethylene tanks, storage, and insulated and sealed tanks as well. They largely cater to the commercial Aquaculture industry providing all the necessary equipment.
Airthereal, founded in the United States in 2018, is a supplier of air purifiers, ozone generators, water heaters, and composters. It offers a variety of products, including the ADH70 air purifier, which removes odors; accessories such as True HEPA filters that remove 99.97% of dust, pollen, pet dander, odors, and cooking oil; and the Revive electric kitchen composter, which reduces food waste by 90%. The company also provides customer support through its help center, email, and phone.
Sumitomo Precision Products Co. Ltd., established in 1961 and headquartered in Amagasaki, Japan, is a manufacturer of several products, including hydraulic controls, semiconductor manufacturing equipment, aerospace equipment, and environmental systems. It began manufacturing large heat exchangers in 1963, large propellers in 1967, and LNG vaporizers in 1969. In 1974, it began making ozone generators, and in 1988, it started manufacturing equipment for space applications. The company is ISO 14001 certified, and its product portfolio includes landing gear systems for commercial flights, high-temperature heat exchangers, coolant components for machine tools, LNG vaporizers, and silicon oxide sacrificial layer etching systems.
Guangzhou Chunke Environmental Technology Co. Ltd., established in 2009, is a manufacturer of advanced water treatment solutions headquartered in China. The company specializes in the production of commercial and industrial reverse osmosis water treatment systems, ultrafiltration systems, and many other water purification equipment, used by people and industries worldwide to address diverse water problems. It has supplied to over 1000 projects in more than100 countries worldwide. Its product range includes industrial and commercial water treatment and filtration systems, and also its own production for stainless steel water treatment equipments such as water storage and carbon filter tanks, etc. custom-made for its customers.
COIPL Creative OZ-Air (I) Pvt. Ltd., founded in 1997 with headquarters in India, is a manufacturer of ozone systems, equipment, and accessories. The company's products include ozone-based sterilization tunnels, MUV mobile UV sterilizer system, air sterilization equipment, and carbon dioxide monitors. Creative OZ-Air's systems and equipment are used in agriculture for germicidal agents and irrigation systems, in processing plant cooling towers to improve cooling water quality, for the disinfection of equipment in food processing plants, and in air quality management systems used in hospitals and nursing homes. The company also offers installation, training, and after-sales maintenance and support.
Meiden Europe is a German manufacturer of electrical equipment and systems established in 1996 as a wholly-owned subsidiary of Japan’s Meidensha Corporation, which has been in operation since 1897. Headquartered in Unterschleissheim, Bavaria, the company produces various electrical equipment including surge arresters, inverters, and motors, as well as electrical systems for railway power supply and substation automation. These are utilized in a wide range of industrial processes, such as in power transmission or distribution, water treatment and robotics. Meiden Europe has sales offices and facilities across the European Union, including in France, Switzerland, Slovakia, Austria, and the United Kingdom.
Veolia, founded in Oakland, New Jersey, in 1974 is a manufacturer of water technology products to process water and wastewater. The company's product portfolio includes Condensate Polishers, Filtration Technologies such as Depth Cartridge Filters, Pleated Cartridge Filters and Cartridge Filter Housings, Evaporators & Crystallizers and Sievers Analyzers and Instruments. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. They also offer equipment repair, instrumentation system upgrades and retrofits, preventive maintenance, and warranty service.
Industrie De Nora S.p.A., founded in 1923, is a multinational supplier, specializing in electrochemistry, a pioneer in sustainable technologies, and with a key role in Green Economy, based in Italy. The company is the world’s premier supplier of electrodes for all major industrial electrochemical processes. It has 25 operating companies in 10 countries and 5 R&D centers in Italy, the United States, and Japan. Ensuring a continuous improvement and enlargement of its proprietary technologies covered by 260 patent families with more than 2,800 territorial extensions. It designs, manufactures, and supplies electrodes, and developes unconventional solutions to achieve the energy transition towards decarbonization.
Amstronics Control Systems Private Limited is a manufacturer and service provider of industrial automation and control systems founded in 2018 and headquartered in Chennai, India. The company’s product offerings include ozone generators, lift and elevator controllers, automatic pouch packing machines, GPS tracking devices, and door locks. It also provides IoT network gateway and dashboard, PCB designing, and embedded product development services. The company is verified by IndiaMART and caters to a wide range of industries, including automotive, manufacturing, electronics, and packaging.
Chemtronics Technologies Pvt. Ltd is a manufacturer and exporter of ozone generators for air, water, and wastewater treatment solutions founded in 2004 and headquartered in Mumbai, India. The company's product line consists of portable ozone generators, wastewater ozone generators, and air ozonators. It has also developed an integrated ozone system, a compact package for water disinfection, reducing organic matter, eliminating contaminants, and controlling odors. The company holds ISO 9001:2015, CE, and IEC certifications. It caters to diverse sectors, including food and beverage, pharmaceutical, agriculture, healthcare, and paper industries.
Eltech Ozone Pvt. Ltd, established in 1992 and located in Mumbai, India, is a manufacturer of an extensive range of ozone generators and related products. The company fabricates ozone generators, ozone air sterilizers, ozone analyzers, ozone monitors, and ozone air purifiers for cars. It also crafts medical ozone generators, oxygen concentrators, air purifiers, medical oxygen concentrators, and ozonated water machines. Ozone is superior to ultraviolet in air treatment because it kills all bacteria and viruses while the latter cannot do so.
Guangzhou BNP ozone technology Co., Ltd. was founded in 1998 in China as a manufacturer and marketer of equipment for ozone production and associated components. Its products find applications in various fields through industrial ozone generators and air diffusers, including pools, fish ponds, aquariums, water laundries and toilets.Its product lineup includes various ozone generators such as the water-cooled SOZ-YW-G ozone generator for wastewater treatment, ozone purifiers, and devices for measuring ozone concentration in water, along with DPD test kits for ozone concentration testing. The products are designed to withstand high temperatures, feature stable structures, and have long lifespans.
Eltech Engineers Pvt Ltd, started in 1992 and situated in Mumbai, India, is a manufacturer of corona treatment, plasma treatment, and the like. The company manufactures corona treater systems, laboratory corona treaters, plasma vortex, vacuum plasma cleaners, and static chargers. It also makes handheld cap sealers, static meters and accessories, and anti-static air ionizers. A corona-treating system is designed to increase the surface energy of plastic films, foils, and paper in order to allow improved wettability and adhesion of inks, coatings, and adhesives.
4 products are listed.