Wastewater Treatment Plant Market Report 2026

Wastewater Treatment Plant Market Overview

• Wastewater Treatment Plant market size has reached to $141.65 billion in 2025 • Expected to grow to $182.19 billion in 2030 at a compound annual growth rate (CAGR) of 5.2% • Growth Driver: Rising Water Pollution Sparks Growth In Wastewater Treatment Plant Market • Market Trend: Innovation In Sustainable And High-Efficiency Wastewater Disinfection Technologies • Asia-Pacific was the largest region and fastest growing region.

What Is Covered Under Wastewater Treatment Plant Market?

A wastewater treatment plant (WWTP) refers to a facility that receives and treats municipal and industrial wastewater to remove contaminants and convert them into effluent that can be safely discharged back into the environment or reused for several purposes. The primary purpose of these plants is to protect public health and the environment by converting wastewater into an acceptable quality. The main types of wastewater treatment plants are effluent, sewage treatment, agriculture, and leachate. Effluent refers to liquid waste or sewage discharged into a river or the sea. Various technologies are used, such as physical treatment, biological treatment, chemical treatment, and electrochemical treatment, with several types of processes involved, including conventional treatment, advanced treatment, membrane treatment, and hybrid treatment. These are used by several end-users, including municipal wastewater treatment plants and industrial wastewater treatment plants.

What Is The Wastewater Treatment Plant Market Growth Forecast?

The wastewater treatment plant market size is expected to see strong growth in the next few years. It will grow to $182.19 billion in 2030 at a compound annual growth rate (CAGR) of 5.2%. The growth in the forecast period can be attributed to increasing investments in advanced wastewater treatment, rising demand for decentralized treatment solutions, expansion of water reuse applications, growing adoption of digital plant management, increasing focus on energy-efficient treatment processes. Major trends in the forecast period include increasing deployment of advanced treatment technologies, rising adoption of smart monitoring systems, growing focus on water reuse and recycling, expansion of membrane and hybrid treatment processes, enhanced emphasis on operational efficiency.

Global Wastewater Treatment Plant Market Segmentation

1) By Type: Effluent, Sewage Treatment, Agriculture, Leachate 2) By Technology: Physical Treatment, Biological Treatment, Chemical Treatment, Electrochemical Treatment 3) By Process: Conventional Treatment, Advanced Treatment, Membrane Treatment, Hybrid Treatment 4) By End-Use Industries: Municipal Wastewater Treatment Plants, Industrial Wastewater Treatment Plants Subsegments: 1) By Effluent: Industrial Effluent Treatment, Municipal Effluent Treatment 2) By Sewage: Primary Sewage Treatment, Secondary Sewage Treatment, Tertiary Sewage Treatment 3) By Agriculture: Irrigation Water Treatment, Agricultural Runoff Treatment 4) By Leachate: Landfill Leachate Treatment, Industrial Leachate Treatment

What Is The Driver Of The Wastewater Treatment Plant Market?

The increasing levels of water pollution are expected to propel the growth of the wastewater treatment plant market going forward. Water pollution occurs when harmful substances contaminate water bodies, rendering them toxic to humans or the environment. Addressing water pollution demands global cooperation to confront this growing issue and develop solutions such as improved water monitoring and wastewater treatment. Wastewater treatment plants play a vital role in addressing water pollution by managing and treating wastewater to protect water quality and ensure sustainable water management practices. For instance, in August 2025, according to the Environment Agency, a UK-based government department In 2024, the total number of pollution incidents from sewerage and water supply assets rose by 29% compared with 2023, an increase that is considered unacceptable. Therefore, the increasing levels of water pollution are driving the growth of the wastewater treatment plant industry.

Key Players In The Global Wastewater Treatment Plant Market

Major companies operating in the wastewater treatment plant market are Hitachi Ltd., Veolia Environnement S.A., Mitsubishi Chemical Aqua Solutions, Larsen & Toubro Limited, Nalco Water India Ltd., Kubota Corporation, Suez Environment S.A., Xylem Inc., Pentair PLC, ITT Corporation, Evoqua Water Technologies Corporation, Fluence Corporation, Thermax Ltd., Triveni Engineering & Industries Ltd., Doshion Veolia Water Solutions Pvt. Ltd., Kemisan Klor-Alkali A.S., Ion Exchange India Ltd., FilterBoxx Inc., Organica Water, Paramount Limited, Bioxica, GE Water And Process Technologies, TMW Technologies, VA Tech Wabag Ltd., ECOfluid Systems Inc., Aquatech International LLC, Danaher Corporation, Doosan Heavy Industries & Construction Co. Ltd., Kurita Water Industries Ltd., Toshiba Water Solutions Private Limited

Global Wastewater Treatment Plant Market Trends and Insights

Major companies in the wastewater treatment plant market are developing innovative solutions, such as high‑strength peracetic acid (PAA) antimicrobial control systems for efficient microbial management. High‑strength peracetic acid (PAA) antimicrobial control systems are chemical solutions that use concentrated PAA to rapidly disinfect and control microbial growth in water and wastewater treatment processes. For instance, In September 2025, Enviro Tech, a U.S.-based specialty chemical manufacturer and subsidiary of Arxada, launched Peragreen 26WW, an innovative antimicrobial control solution that enhances wastewater treatment efficiency and operational sustainability beyond. The product features a biodegradable peracetic acid formulation that rapidly reduces microbial contaminants, integrates with existing infrastructure without major upgrades, and lowers overall chemical usage and maintenance costs for facilities.

What Are Latest Mergers And Acquisitions In The Wastewater Treatment Plant Market?

In October 2023, BW Group Limited, a US-based maritime company that specializes in shipping, floating gas infrastructure, and deep-water oil and gas production, acquired SafBon Water Technology Inc. for an undisclosed amount. The aim of the acquisition is to strengthen BW Water's position in the water and wastewater treatment industry, particularly in the Americas, unlock new markets with desalination competencies in Asia, and integrate SafBon Water Technology under the BW Water brand. SafBon Water Technology Inc. is a US-based company that provides advanced water and wastewater treatment systems.

Regional Outlook

Asia-Pacific was the largest region in the wastewater treatment plant market in 2025. It is expected to be the fastest-growing region in the forecast period. The regions covered in this market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in this market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain

What Defines the Wastewater Treatment Plant Market?

The wastewater treatment plant market consists of revenues earned by entities by providing services such as wastewater collection, monitoring, sludge treatment and disposal, resource recovery, and stormwater management. The market value includes the value of related goods sold by the service provider or included within the service offering. The wastewater treatment plant market also includes sales of screens, pumps, grit chambers, primary clarifiers, aeration tanks, secondary clarifiers, filters, disinfection units, sludge treatment equipment, control systems, and piping with valves. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

How is Market Value Defined and Measured?

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified). The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

What Key Data and Analysis Are Included in the Wastewater Treatment Plant Market Report 2026?

The wastewater treatment plant market research report is one of a series of new reports from The Business Research Company that provides market statistics, including Market Report 2026?global market size, regional shares, competitors with the market share, detailed market segments, market trends and opportunities, and any further data you may need to thrive in the wastewater treatment plant Market Report 2026? The market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future state of the Market Report 2026?