How big is the Water and Wastewater Treatment Market | Industry Trends & Growth Insights 2025

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Code: MTA9678

Publication Date: Oct 2025

What is the size of Water and Wastewater Treatment Market?

According to 6Wresearch internal database and industry insights, the Global Water and Wastewater Treatment Market was valued at USD 326.4 Billion in 2024 and is expected to reach USD 472.1 Billion by 2031, growing at a compound annual growth rate of 6.79% during the forecast period (2025-2031).

The main drivers of this growth are the rising demand for clean water, stricter discharge standards across industries, and the increasing adoption of advanced treatment technologies. Expanding urbanization and industrial activities are further reinforcing investments in water recycling and treatment facilities.

Growth Factors for Water and Wastewater Treatment Industry

Rising urban populations driving demand for municipal water treatment.
Industrial growth requiring compliance with stringent effluent standards.
Technological advancements in biological and chemical treatment processes.
Government initiatives to improve water quality and infrastructure.
Growing emphasis on water reuse and sustainable resource management.

Water and Wastewater Treatment Market Trends

Trends in the Water and Wastewater Treatment Market indicate a growing interest in advanced solutions, such as membrane bioreactors, moving bed biofilm reactors, and zero-liquid discharge systems. Digital monitoring, automation, and AI-driven analytics are adding to operational efficiency in treatment plants. Deployment of modular and decentralised treatment systems continues, particularly as solutions to serve rural areas and industrial clusters. Focus on resource recovery, including nutrient recovery and excess biogas generation, is supporting the water and wastewater treatment market's role in sustainable development and transition to a circular economy.

Emerging Developments in the Water and Wastewater Treatment Market

The developments in the Water and Wastewater Treatment Market reveal growing interest in hybrid treatment systems that combine physical, chemical, and biological processes. New companies are utilising mobile and container-based treatment units to supply temporary or remote needs. Increasing cooperation between municipalities and technology providers is advancing the modernisation of municipal and industrial infrastructure. Investment is growing towards energy-conscious processes and renewable-powered treatment facilities. The use of AI technology and analytic tools is increasing in both process controls and maintenance, impacting overall treatment efficiency while remaining in compliance with evolving standards.