Wastewater treatment equipment market seen topping $43.9B by 2030

The Business Research Company says the global wastewater treatment equipment market will exceed $43.94 billion by 2030, driven by tighter discharge rules, water reuse demand and industrial growth. Veolia Environnement and Xylem led global sales in 2025 as membrane systems emerged as the largest equipment segment.

Why it matters: - Wastewater treatment equipment is becoming a bigger industrial and municipal infrastructure market as regulators tighten discharge standards and water reuse expands. - The market is expected to cross $43.94 billion by 2030, which signals more spending on filtration, membranes, automation and energy-efficient treatment systems. - The shift affects utilities, industrial operators and equipment suppliers that must upgrade for compliance, efficiency and reuse.

What happened: - The Business Research Company published The Global Wastewater Treatment Equipment Global Market Report 2026 – Market Size, Trends, And Forecast 2026-2035. - The report projects the market will exceed $44 billion by 2030 and grow at a 5% compound annual growth rate through 2030. - Veolia Environnement SA held the top global sales share in 2025 at 3%. - Xylem Inc. also held a 3% share in 2025. - Ecolab Inc. and Pentair plc each held 2%. - Toray Industries Inc., Danaher Corporation's Pall Corporation and Aquatech International LLC each held 1%. - Kurita Water Industries Ltd., Siemens AG and Hitachi Ltd. each held 0.1%.

The details: - The market is moderately fragmented, with the top 10 players accounting for 13% of total revenue in 2025. - The report points to barriers including strict environmental standards, complex engineering requirements, high capital costs and demand for reliable, sustainable systems. - Veolia's water technologies division spans filtration systems, membrane technologies, biological treatment solutions, sludge management equipment and digital monitoring platforms. - Advanced multi-stage filtration is one of the clearest technology shifts in the market. - Everfilt launched the X-Series in May 2024, a three-stage filtration system for breweries and distilleries. - The X-Series uses a compact design, an independent backwash mechanism and durable construction. - By equipment type, membrane equipment is expected to lead by 2030 with 34% of the market, or about $15 billion. - Other equipment categories include filtration equipment, thermal distillation equipment and evaporators, and disinfection equipment. - By treatment process, the market is split into primary, secondary and tertiary systems. - By application, the market is divided into municipal and industrial uses. - Asia-Pacific is projected to be the largest regional market by 2030 at $16 billion, up from $12 billion in 2025. - The United States is forecast to be the largest national market at $10 billion in 2030, up from $8 billion in 2025. - The report says Asia-Pacific growth is tied to municipal infrastructure investment, industrialization, water reuse programs and government funding for sanitation. - U.S. growth is linked to upgrades at aging treatment facilities, industrial demand and water-quality infrastructure spending. - Three growth drivers are highlighted: stricter wastewater discharge regulations, water scarcity and reuse programs, and rapid industrialization plus urban population growth. - The report assigns roughly 2.1% annual growth to regulation pressure, 1.9% to water scarcity and reuse, and 1.6% to industrialization and urban growth. - Filtration, membrane, disinfection, and thermal distillation and evaporator systems are identified as the biggest opportunity areas. - Those segments are expected to add more than $9 billion in combined market value by 2030. - The report says filtration and membrane equipment each could add $3 billion between 2025 and 2030. - Disinfection equipment could add $2 billion, while thermal distillation and evaporators could add $1 billion. - The market ecosystem includes suppliers such as DuPont de Nemours, BASF, Solenis, Kemira, Kurita Water Industries, Ecolab, LANXESS, Evonik, Toray, SUEZ Water Technologies & Solutions, Pentair, Alfa Laval, GEA, Pall, 3M, Hydranautics, LG Chem, Koch Separation Solutions, Porvair Filtration Group, Mann+Hummel, Veolia Water Technologies, De Nora Water Technologies, Ovivo and Aquatech. - Distributor names in the report include WESCO International, Ferguson Enterprises, Grainger, Motion Industries, Applied Industrial Technologies, Core & Main, Wolseley Industrial Group, ERIKS, Rubix Group International, DXP Enterprises, SunSource Holdings, United Distribution Group, FCX Performance, Ryan Herco Flow Solutions, MRC Global, Blackhawk Industrial Distribution, BDI, BMG, Hisco, Keller & Heartt, FloSource, Process Solutions International, Crane Engineering Sales, Industrial Controls Distributors and Cooney Brothers. - End users listed in the report include major water utilities and public operators such as American Water Works, Essential Utilities, California Water Service Group, United Utilities, Severn Trent, Thames Water, Anglian Water, Yorkshire Water, Southern Water, SABESP, Singapore PUB, Beijing Enterprises Water Group, China Water Affairs Group, Manila Water, Maynilad Water Services, Gujarat Water Supply and Sewerage Board, Chennai Metropolitan Water Supply and Sewerage Board, Delhi Jal Board, Sydney Water, Watercare Services, Aguas Andinas, Emirates Water and Electricity Company, Aqua America Wastewater Operations, EPCOR Utilities and Scottish Water. - The 2026 report package also includes market attractiveness scoring, TAM analysis, company scoring matrix graphics and tables, Excel dashboards, market hotspots infographics, and updated technology and trend analysis.

Between the lines: - The report frames wastewater treatment as a market where compliance spending and water scarcity are converging. - Membranes and automated monitoring are gaining weight because operators want smaller footprints, lower operating costs and more reuse-ready output. - A fragmented supplier base suggests no single vendor dominates the sector, even as larger firms use breadth of offerings and distribution scale to defend share.

What's next: - The market is likely to keep consolidating around vendors that can offer energy efficiency, automation and resource recovery together. - Growth should be strongest in regions and sectors facing infrastructure upgrades, industrial expansion and stronger reuse mandates. - Equipment makers are expected to keep investing in filtration, membrane performance and digital monitoring to win new projects.

The bottom line: - Wastewater treatment equipment is moving from a niche industrial category to a core water infrastructure market, with membranes, automation and reuse driving the next wave of growth.