Water Treatment Ozone Generator Global Market Report 2025

The water treatment ozone generator market size has grown strongly in recent years. It will grow from $1.48 billion in 2024 to $1.57 billion in 2025 at a compound annual growth rate (CAGR) of 6.3%. The growth in the historic period can be attributed to rising demand for clean water, growing industrial wastewater discharge, environmental awareness, stricter water quality regulations, and rising health concerns.

The water treatment ozone generator market size is expected to see strong growth in the next few years. It will grow to $2.06 billion in 2029 at a compound annual growth rate (CAGR) of 7%. The growth in the forecast period can be attributed to the expansion of municipal water projects, growth in industrial automation, focus on zero liquid discharge, stricter regulatory enforcement, and demand for chemical-free disinfection. Major trends in the forecast period include advancements in corona discharge technology, integration with the Internet of Things, research on energy-efficient ozone systems, development of compact ozone units, and automation in ozone dosing control.

The forecast of 7% growth over the next five years reflects a modest reduction of 0.3% from the previous estimate for this market. This reduction is primarily due to the impact of tariffs between the US and other countries. Tariffs on imported corona discharge modules and control systems from Japan and South Korea could elevate costs in the U.S. ozone generator segment, potentially slowing down adoption in both municipal and industrial water treatment. The effect will also be felt more widely due to reciprocal tariffs and the negative effect on the global economy and trade due to increased trade tensions and restrictions.

Growing concerns over water pollution are expected to drive the expansion of the water treatment ozone generator market. Water pollution occurs when toxic or harmful substances are introduced into water sources, making them unsafe for human use and damaging aquatic ecosystems. The increasing pollution is largely attributed to industries releasing untreated waste into water bodies, causing chemical contamination. Water treatment ozone generators address this issue by producing ozone, a powerful oxidizing agent that effectively removes harmful pollutants, bacteria, and organic compounds. This process purifies water without leaving toxic byproducts, ensuring safety for both humans and the environment. For example, in February 2024, UNESCO, a UK-based specialized agency, reported that 56% of Americans were very concerned about pollution in their drinking water, while 52% expressed significant concern over pollution in rivers, lakes, and reservoirs. Additionally, as of 2022, 2.2 billion people lacked access to safely managed drinking water. As a result, the growing concerns over water pollution are fueling the market growth for ozone generators in water treatment.

Companies operating in the water treatment ozone generator market are focusing on developing advanced, environmentally friendly water disinfection systems to improve treatment efficiency and meet rising regulatory and sustainability demands. These systems use sustainable methods or advanced filtration to remove harmful microorganisms and pollutants without the use of toxic chemicals, ensuring clean water without harmful residues. For instance, in October 2024, Salher, a Spain-based provider of urban and industrial wastewater treatment solutions, introduced the OZ Wizard, a compact and modular ozone generation system. Designed for municipal water supply, the OZ Wizard effectively eliminates microorganisms and contaminants without leaving harmful residues. This environmentally friendly solution supports sustainable water treatment by using corona discharge technology to produce ozone, offering a chemical-free and cost-effective way to improve water quality and protect environmental resources.

In May 2023, Xylem Inc., a US-based water technology company, acquired Evoqua Water Technologies for approximately \$7.5 billion. This acquisition strengthens Xylem's leadership in the water treatment industry by integrating Evoqua’s advanced water technologies and services, creating a comprehensive platform to address critical water issues such as scarcity, quality, and resilience. The acquisition enables the combined company to offer a broader range of solutions to utilities, industrial, and commercial customers globally. Evoqua Water Technologies LLC, based in the US, provides ozone generators for water treatment solutions.

A water treatment ozone generator is a device that produces ozone gas (O₃) for purifying water. It works by oxidizing contaminants to disinfect and purify the water, eliminating the need for chemicals. This approach offers a sustainable and effective alternative to traditional chemical treatments, ensuring cleaner and safer water.

The primary types of water treatment ozone generators include large, medium, and small ozone generators. Large ozone generators are industrial-grade machines that provide high-output ozone for demanding, large-scale water treatment applications. These generators use various technologies, such as corona discharge, ultraviolet, and electrolysis-based systems, with multiple ozone output capacities ranging from low (0-20 grams per hour), medium (21-100 grams per hour), high (101-500 grams per hour), to very high (above 500 grams per hour). They are used in a variety of applications, including water treatment, wastewater treatment, swimming pool treatment, aquaculture and fish farming, and industrial processes. End-user industries for these generators include municipal water supply, food and beverage processing, healthcare and pharmaceuticals, pulp and paper, and oil and gas.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

The sharp rise in U.S. tariffs and the ensuing trade tensions in spring 2025 are having a notable impact on the utilities sector, particularly across power generation, grid modernization, and renewable energy initiatives. Increased duties on imported equipment such as turbines, transformers, solar panels, and battery storage systems are driving up both capital and operational expenses for utility companies, prompting many to delay projects or pass higher costs on to consumers through increased energy rates. The water and waste management sectors are similarly affected, as tariffs inflate the cost of essential machinery, piping, and treatment technologies. Moreover, retaliatory tariffs from key trading partners have disrupted the supply of critical raw materials - such as rare earth elements vital for clean energy technologies - posing further challenges to the shift toward sustainable energy. In response, the sector is increasingly focusing on domestic procurement, digital transformation, and efficiency-enhancing innovations to control rising costs while safeguarding energy reliability and meeting regulatory demands.

The water treatment ozone generators market research report is one of a series of new reports that provides water treatment ozone generators market statistics, including the water treatment ozone generators industry global market size, regional shares, competitors with the water treatment ozone generators market share, detailed water treatment ozone generators market segments, market trends, opportunities, and any further data you may need to thrive in the water treatment ozone generators industry. This water treatment ozone generators market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenarios of the industry.

Major players in the water treatment ozone generator market are Veolia Environnement S.A., Toshiba Corporation, Xylem Inc., METAWATER Co. Ltd., De Nora, Chemtronics Co. Ltd., Ebara Technologies Inc., BIO-UV Group SAS, Salher, Ozone Solutions Inc., ClearWater Tech LLC, Faraday Ozone Products Private Limited, Pinnacle Ozone Solutions LLC, Absolute Ozone, Lenntech B.V., Spartan Environmental Technologies LLC, A2Z Ozone Inc., Oxidation Technologies LLC, Eltech Ozone Pvt. Ltd., Qingdao Guolin Technology Group Co. Ltd., Primozone Production AB.

North America was the largest region in the water treatment ozone generator market in 2024. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in water treatment ozone generator report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, Middle East and Africa.

The countries covered in the water treatment ozone generator market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The water treatment ozone generator market consists of revenues earned by entities by providing services such as water disinfection, algae control, chemical-free treatment, and wastewater treatment. The market value includes the value of related goods sold by the service provider or included within the service offering. The water treatment ozone generator market includes sales of portable ozone generators, skid-mounted ozone generators, and wall-mounted ozone generators. Values in this market are ‘factory gate’ values, that is, the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values and are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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