Water and Wastewater Treatment Equipment Market Size & Growth Forecast 2027–2036, By Segments (Application, Process by Equipment), Regional Demand Trends (North America, Asia Pacific, Europe), Key Country Insights (U.S., Japan, South Korea, Germany, France, Italy), and Competitive Landscape

Market Size and Growth Outlook

Water and Wastewater Treatment Equipment Market size was assessed at USD 74.2 billion in 2026 and is poised to grow at a 5.04% CAGR between 2027 and 2036, attaining USD 121.33 billion by 2036. The industry revenue for 2027 is calculated at USD 77.35 billion.

• Base Year Value (2026): USD 74.2 billion
• CAGR (2027-2036): 5.04%
• Forecast Year Value (2036): USD 121.33 billion
• Historical Data Period: 2022-2026
• Largest Region: Asia Pacific
• Forecast Period: 2027-2036

Water And Wastewater Treatment Equipment Market Intelligence Snapshot:

• Regional Market Dynamics:

  • Asia Pacific holds a 38.16% share due to large-scale municipal and industrial water treatment demand supported by ongoing infrastructure investment and expanding urban and industrial networks.
  • North America grows at 5.47% CAGR driven by infrastructure replacement cycles, stricter compliance standards, and modernization toward efficient, automated treatment systems.

• Segment Momentum:

  • Municipal applications held a 63.83% share in 2026 because public water supply and sewage treatment systems require continuous, large-scale equipment deployment to support service coverage and compliance needs.
  • Industrial is the fastest-growing application segment as manufacturers increasingly invest in treatment equipment for water reuse, discharge control, and specialized treatment requirements associated with variable effluent streams.

• Market Expansion Drivers:

  • Rising industrial discharge regulations driving adoption of advanced tertiary wastewater treatment systems.
  • Expanding urban population and industrialization increasing demand for large-scale water treatment infrastructure.
  • Increasing integration of membrane filtration and UV disinfection improving treatment efficiency and compliance.

• Leading Market Participants:

  Prominent companies in the water and wastewater treatment equipment market include Xylem Inc. (United States), Pentair plc (United Kingdom), Veolia Environnement S.A. (France), Ecolab Inc. (United States), DuPont de Nemours Inc. (United States), Kurita Water Industries Ltd. (Japan), Aquatech International LLC (United States), Calgon Carbon Corporation (United States), Evoqua Water Technologies LLC (United States), Koch Separation Solutions (United States).

Unlock Complete Insights

Global Market Forecast Snapshot:

• Market Outlook:

  • 2026 Market Size: USD 74.2 billion
  • 2027 Estimated Market Size: USD 77.35 billion.
  • Projected Market Size: USD 121.33 billion by 2036
  • Growth Forecasts: 5.04% CAGR (2027-2036)

• Regional and Segment Outlook:

  • Leading Regional Market: Asia Pacific
  • High-Growth Regional Hub: North America
  • Core Revenue Segment: Municipal (Application) | Tertiary Treatment (Process by Equipment)
  • Emerging Opportunity Segment: Industrial (Application) | Tertiary Treatment (Process by Equipment)

Market Growth Drivers and Industry Trends

Rising industrial discharge regulations driving adoption of advanced tertiary wastewater treatment systems

Stricter controls on industrial wastewater discharge are increasing the need for advanced treatment technologies, supporting the water and wastewater treatment equipment market. Industries must increasingly remove suspended solids, nutrients, organic contaminants, and other pollutants before treated water can be discharged or reused, encouraging investment in tertiary and polishing treatment systems. Advanced filtration, biological treatment, disinfection, and contaminant removal equipment can help industrial facilities achieve required effluent quality while addressing the treatment demands associated with complex manufacturing processes.

Expanding urban population and industrialization increasing demand for large-scale water treatment infrastructure

Urban population growth and continued industrialization are increasing pressure on municipal and industrial water systems, which will drive the water and wastewater treatment equipment market through expanded treatment infrastructure requirements. Growing communities generate greater volumes of domestic wastewater, while industrial expansion increases demand for reliable water supply, process-water treatment, and effluent management. Municipal authorities and industrial operators therefore require scalable treatment facilities, pumping systems, filtration equipment, and sludge-management technologies capable of supporting expanding water and wastewater flows.

Increasing integration of membrane filtration and UV disinfection improving treatment efficiency and compliance

The integration of membrane filtration and ultraviolet disinfection is enhancing treatment performance and creating additional demand within the water and wastewater treatment equipment market. Membrane technologies can provide effective removal of suspended particles, microorganisms, and selected dissolved contaminants, while UV systems offer chemical-free disinfection by inactivating microorganisms in treated water. Combining these technologies with conventional treatment processes can improve water quality, support reuse applications, and help operators maintain consistent treatment performance under increasingly stringent quality requirements.

Growth Driver Assessment Framework
Growth Driver	Impact On CAGR	Regulatory Influence	Geographic Relevance	Adoption Rate	Impact Timeline
Rising industrial discharge regulations driving adoption of advanced tertiary wastewater treatment systems	2.20%	High	Asia Pacific, Europe	High	Near Term
Expanding urban population and industrialization increasing demand for large-scale water treatment infrastructure	2.00%	High	Asia Pacific, North America	High	Near Term
Increasing integration of membrane filtration and UV disinfection improving treatment efficiency and compliance	1.60%	High	North America, Europe	Emerging	Mid Term

Regional Demand Dynamics

Asia Pacific (Largest Region) vs North America (Fastest-Growing Region)

In the water and wastewater treatment equipment market, Asia Pacific accounted for the largest share of 38.16% in 2026, supported by rapid urbanization, industrial expansion, and increasing pressure on water resources. Growing municipal and industrial requirements for reliable water treatment are encouraging investments in treatment infrastructure, while environmental regulations and rising awareness of water conservation are strengthening demand for advanced equipment. Expansion of manufacturing, power generation, food processing, and other water-intensive industries is further increasing the need for efficient treatment and recycling systems across the region.

North America represents the fastest-growing region, driven by increasing investment in aging water infrastructure, stricter environmental requirements, and growing emphasis on water quality and resource management. Municipalities and industrial facilities are placing greater focus on improving treatment efficiency, reducing environmental impact, and strengthening water reuse capabilities. Technological advancements in filtration, disinfection, separation, and monitoring are also creating opportunities for equipment upgrades, supporting continued adoption across both municipal and industrial applications.

Key Country Insights

United States

Infrastructure Renewal Focus

The U.S. water and wastewater treatment equipment market is supported by modernization of aging municipal infrastructure and expanding industrial treatment requirements. Utilities and private operators in the U.S. are investing in advanced filtration, automation, and monitoring technologies to improve treatment efficiency and regulatory compliance.

Japan

High-Efficiency Water Systems

Japan prioritizes compact, high-performance water and wastewater treatment equipment suited to municipal and industrial applications with limited operational space. Equipment providers in Japan continue improving treatment efficiency, automation, and maintenance performance to support long-term infrastructure reliability.

South Korea

Smart Treatment Integration

South Korea is integrating smart technologies into water and wastewater treatment equipment to strengthen operational oversight and resource efficiency. Utilities and industrial operators are expanding the use of automated monitoring and data-driven process management across treatment facilities.

Germany

Advanced Process Optimization

Germany emphasizes water and wastewater treatment equipment that delivers efficient resource management and consistent treatment performance. Industrial facilities and utilities are adopting advanced process controls, energy-efficient systems, and digital monitoring to optimize operational reliability.

France

Circular Water Management

France continues investing in water and wastewater treatment equipment that supports water reuse, environmental compliance, and efficient utility operations. Equipment suppliers are responding with advanced treatment technologies designed to improve resource recovery and reduce operational impacts.

Italy

Municipal System Upgrades

Italy is upgrading municipal water and wastewater treatment equipment to improve service reliability and operational efficiency across regional networks. Italian utilities are adopting modern filtration, pumping, and process control technologies that enhance treatment performance while simplifying long-term maintenance.

Segment Leadership and Growth Trends

 

Application Segment Analysis: Municipal (Largest Segment) vs Industrial (Fastest-Growing Segment)

The municipal segment dominated the water and wastewater treatment equipment market with a 63.83% share in 2026, reflecting the essential role of treatment infrastructure in supplying safe water and managing wastewater generated by residential and public facilities. Municipal authorities require extensive treatment systems to address water quality, sanitation, and environmental protection requirements, creating sustained demand for filtration, clarification, disinfection, and other treatment equipment. Urbanization and increasing pressure to modernize aging water infrastructure are also strengthening investment in municipal treatment capabilities.

Industrial applications are expected to be the fastest-growing segment as manufacturers across water-intensive industries increasingly prioritize wastewater recovery, pollution control, and compliance with environmental requirements. Industrial facilities face growing pressure to improve water-use efficiency and limit the discharge of untreated or inadequately treated effluent. Greater adoption of water reuse practices and investment in process-specific treatment technologies are consequently supporting demand for advanced equipment across industrial facilities.

Process by Equipment Segment Analysis: Tertiary Treatment (Largest & Fastest-Growing Segment)

Tertiary treatment represented the largest share of the water and wastewater treatment equipment market at 47.17% in 2026 and is also the fastest-growing process by equipment segment, reflecting the increasing need for advanced purification following primary and secondary treatment stages. Tertiary systems provide additional removal of nutrients, fine particulates, microorganisms, and other residual contaminants, enabling treated water to meet increasingly stringent quality requirements. Growing emphasis on water reuse, resource recovery, environmental protection, and higher effluent quality is encouraging broader deployment of advanced treatment processes, strengthening the role of tertiary treatment in both municipal and industrial water management.

Report Segmentation
Segment	Sub-Segment	Largest Segment	Fastest Growing Segment
Application	Municipal, Industrial	Municipal	Industrial
Process by Equipment	Primary Treatment, Secondary Treatment, Tertiary Treatment	Tertiary Treatment	Tertiary Treatment

Competitive Landscape and Market Positioning

Prominent players in the water and wastewater treatment equipment market:

1. Xylem Inc. (United States)

2. Pentair plc (United Kingdom)

3. Veolia Environnement S.A. (France)

4. Ecolab Inc. (United States)

5. DuPont de Nemours Inc. (United States)

6. Kurita Water Industries Ltd. (Japan)

7. Aquatech International LLC (United States)

8. Calgon Carbon Corporation (United States)

9. Evoqua Water Technologies LLC (United States)

10. Koch Separation Solutions (United States)

The water and wastewater treatment equipment market is undergoing rapid transformation due to rising regulatory pressures and increasing demand for advanced treatment systems. Companies are integrating digital monitoring technologies, automated filtration systems, and energy-efficient treatment processes to improve operational performance. Strategic acquisitions and expansion into decentralized treatment applications are also contributing to stronger market competitiveness.

Industry Development/News

Company Name	Date	Key Development
Ovivo	Aug-25	Ovivo signed a definitive agreement to divest its specialized Electronics business division to Ecolab for approximately USD 2.4 billion. The major corporate restructuring allows Ovivo to redeploy capital resources and sharpen its operational focus exclusively on core municipal and industrial water and wastewater treatment technologies.
Pentair plc	Sep-25	Pentair plc completed the acquisition of Hydra-Stop LLC from Madison Industries for approximately USD 290 million in cash. The transaction integrates specialized insertion valves and line stop fittings into Pentair's Flow business segment, scaling its water infrastructure footprint serving municipal utilities.
Veolia	Aug-25	Veolia executed an agreement to acquire the remaining 30% minority equity stake in its Water Technologies and Solutions subsidiary from CDPQ for USD 1.75 billion. Achieving full ownership simplifies corporate architecture and accelerates the integration of advanced process water and industrial wastewater treatment infrastructure.
Ferguson	May-26	Ferguson finalized six targeted acquisitions across its industrial, HVAC, and Waterworks distribution divisions, incorporating nearly two dozen operational branch logistics hubs and USD 350 million in run-rate revenue. The transactions scale the corporation's regional distribution footprint for municipal water infrastructure supplies.
SUEZ Group	Jun-25	SUEZ Group secured a municipal infrastructure contract to renovate and modernize the public water production and distribution facilities in Kochi, India. The engineering project expands the firm's operational footprint and technology deployment within developing South Asian municipal water treatment markets.
SUEZ Group	Jul-25	SUEZ Group, in collaboration with the Greater Paris Sanitation Authority, commissioned an industrial biogas production plant integrated into the Seine Aval wastewater treatment facility. The project represents a circular infrastructure deployment that converts urban wastewater treatment byproducts into sustainable energy.
DuPont Water Solutions	Mar-25	DuPont Water Solutions launched WAVE PRO, an advanced online simulation and modeling tool tailored for ultrafiltration engineering. The software system allows operators to accurately model water quality parameters, select optimal modules, and design high-efficiency industrial ultrafiltration processes.
Thermax	Apr-24	Thermax commissioned a new two-acre advanced water and wastewater treatment manufacturing facility in Pune, India. The greenfield plant scales manufacturing capacity for industrial water softeners, filtration vessels, tubular membrane separation modules, and advanced capacitive deionization infrastructure.
Xylem Inc.	May-23	Xylem Inc. completed the multi-billion dollar acquisition of Evoqua Water Technologies, creating an expansive global water treatment platform. The merger combines complementary portfolios in filtration, disinfection, and process water solutions to scale market penetration across North American and European industrial sectors.
Veolia	Nov-23	Veolia, partnering with Vendée Eau, inaugurated France's premier commercial water reclamation facility under the Jourdain program. The advanced wastewater reuse facility is engineered to purify treated municipal effluent into potable water, adding 1.5 million cubic meters of capacity during summer scarcity periods.