Secondary Water And Wastewater Treatment Equipment Market Summary

The global secondary water and wastewater treatment equipment market size was estimated at USD 24.91 billion in 2024 and is projected to reach USD 32.65 billion by 2030, growing at a CAGR of 4.7% from 2025 to 2030. This consistent market growth is primarily driven by increasing water scarcity across both developed and developing regions, along with the implementation of stringent environmental regulations aimed at controlling water pollution. Rapid urbanization and population growth are placing significant pressure on existing water infrastructure, thereby increasing the need for advanced secondary treatment systems that ensure safe discharge and reuse of treated water.

In addition, the demand for efficient wastewater management solutions is heightened by rising pollution levels and the need for sustainable water practices. Industrial expansion and agricultural activities are contributing to higher volumes of wastewater, making effective treatment essential to protect water bodies and public health. Furthermore, technological advancements, such as the development of innovative treatment methods such as moving bed biofilm reactors, further enhance treatment efficiency. These advanced systems offer improved biological treatment performance, reduced energy consumption, and better adaptability to fluctuating wastewater loads, supporting wider adoption across treatment facilities.

Key Market Trends & Insights

• The Asia Pacific secondary water and wastewater treatment equipment market dominated the global market and accounted for the largest revenue share of 35.9% in 2024. This leadership is supported by large population bases, increasing urban development, rising industrial activities, and significant government investments in upgrading water and wastewater treatment infrastructure across the region.
• Based on equipment, the activated sludge segment led the global market and accounted for the largest revenue share of 45.1% in 2024. The widespread use of activated sludge systems is driven by their proven effectiveness in removing organic matter, flexibility in operation, and suitability for large-scale municipal and industrial treatment plants.
• Based on application, the municipal application segment dominated the market and accounted for the largest revenues share of 67.9% in 2024. Growing urban populations and expanding municipal wastewater networks continue to drive demand for reliable and efficient secondary treatment equipment.

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Market Size & Forecast

• 2024 Market Size: USD 24.91 Billion
• 2030 Projected Market Size: USD 32.65 Billion
• CAGR (2025-2030): 4.7%
• Asia Pacific: Largest market in 2024

Key Companies & Market Share Insights

Key companies in the global secondary water and wastewater treatment equipment industry include Siemens AG, IDEX Corporation, Evoqua Water Technologies, and others. These players adopt various strategies to enhance their competitive edge. These include investing in research and development to innovate new technologies, forming strategic partnerships to expand market reach, and focusing on sustainability initiatives. In addition, companies prioritize improving operational efficiency and reducing costs through advanced manufacturing techniques. Furthermore, they also engage in mergers and acquisitions to strengthen their product portfolios and enhance service capabilities, ensuring they meet the evolving demands of the market effectively.

• Veolia Water Technologies manufactures a wide range of equipment and systems designed for both municipal and industrial applications, including technologies for screening, clarification, and biological treatment processes. Operating in the water treatment segment, the company focuses on optimizing wastewater management through innovative technologies that ensure compliance with environmental standards while promoting sustainability and resource recovery.
• IDEX Corporation offers a diverse portfolio of products, including pumps, valves, and filtration systems tailored for water treatment applications. The company focuses on the industrial segment, providing solutions that enhance operational efficiency and reliability in water treatment processes.

Key Players

• Veolia Water Technologies
• Siemens AG
• IDEX Corporation
• Evoqua Water Technologies
• ITT Inc.
• Suez Water Technologies Solutions
• GE Power
• Toray Industries, Inc.
• Mitsubishi Heavy Industries, Ltd.
• Xylem Inc.
• Danaher Corporation
• Pentair plc
• Emerson Electric Co.
• Alfa Laval AB
• Hitachi, Ltd.

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Conclusion

The secondary water and wastewater treatment equipment market is expected to experience steady growth as water scarcity, urbanization, and environmental concerns intensify globally. Technological advancements are improving treatment efficiency and sustainability, while regulatory compliance continues to drive infrastructure investments. Asia Pacific’s market dominance highlights the role of large-scale urban and industrial development. With municipalities remaining the primary end users and activated sludge systems leading equipment demand, the market is well positioned to support sustainable water management and environmental protection efforts worldwide.