The Water and Wastewater Treatment Equipment Market is being shaped by the growing need to secure clean water while managing wastewater more efficiently. The market was valued at USD 64.95 billion in 2025 and is expected to reach USD 68.38 billion in 2026 and USD 104.24 billion by 2034, expanding at a CAGR of 5.40% during 2026–2034. Asia Pacific accounted for 32.0% revenue share in 2025, while North America is projected to grow at a 4.9% CAGR.

Tertiary Treatment Strengthens Water Reuse

The process segment shows the growing role of tertiary treatment equipment, which accounted for 44.0% of revenue in 2025. Its leading position reflects high usage for improving water emission quality before reuse. As water scarcity and pollution concerns increase, treatment systems that support higher-quality outputs become increasingly relevant to municipalities and industrial users.

wastewater reuse systems are another strategic area because treated wastewater can be reused rather than discharged without further application. The market’s equipment base includes filtration units, clarifiers, aerators, disinfection systems, membranes, pumps, and sludge-treatment devices. Together, these technologies help remove contaminants and support safe reuse or discharge.

Membranes and Filtration Improve Treatment Performance

membrane separation equipment held the largest type share at 28.0% in 2025, driven by high filtration efficiency and compact operating requirements. filtration systems also form a core part of treatment infrastructure by removing suspended solids and other contaminants. These technologies support municipal drinking-water production as well as industrial treatment requirements.

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Industrial and Regulatory Requirements

industrial process water treatment is essential for industries such as chemicals and pharmaceuticals, where process water must be purified and wastewater recycled or treated to meet discharge requirements. water discharge regulations are consequently central to investment decisions, particularly in markets where governments enforce stringent water-quality and discharge standards.

Regional and Competitive Outlook

Asia Pacific remained the largest regional market in 2025, supported by population growth and technological advances in wastewater treatment. North America’s projected 4.9% CAGR reflects strict discharge regulations and urbanization. The competitive landscape includes Ashland Technologies; Aquatech International LLC Technologies; Calgon Carbon Corp.; Danaher Corporation; Degremont SAS; Dow Solutions; DuPont; Ecolab Inc.; Evoqua; GE Technologies; Kemira OYJ; Pentair plc; SUEZ; Veolia; and Xylem Inc.

Business Implications

For equipment manufacturers and service providers, the market offers opportunities across municipal, industrial, and commercial applications. Compact treatment systems are particularly useful where space, installation requirements, and treatment capacity must be balanced. With demand supported by water scarcity, pollution control, regulation, and reuse, the market is positioned for steady expansion to USD 104.24 billion by 2034.

Strategic B2B Perspective

Demand remains broad across municipal water treatment, industrial facilities, and commercial buildings, where systems are used for drinking water production, wastewater management, and reuse.

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