Market overview
The global effluent treatment plant market is worth USD 31.9 bn in 2026 and is forecast to reach USD 58.9 bn by 2036, growing at a 6.3% CAGR. China is the largest country market and Biological is the largest by treatment process segment.
| Scope | Industrial effluent treatment plants: equipment and construction for treating process wastewater from chemicals, textiles, food, metals, pharmaceuticals and power plants before discharge or reuse. |
|---|---|
| Industry | Services and Utilities |
| Value 2025 | USD 30.0 bn |
| Value 2026 | USD 31.9 bn |
| Value 2036 | USD 58.9 bn |
| CAGR 2026-2036 | 6.3% |
| Volume 2026 | 11,485 installations |
| Volume 2036 | 17,357 installations |
| Average price 2026 | USD 2,782,000 per installation |
| Report price | Starts from USD 1,999 |
| Published | November 2026 |
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Effluent Treatment Plant market size and forecast, 2026-2036
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| Year | Market value |
|---|---|
| 2026 | USD 31.9 bn |
| 2027 | USD 34.0 bn |
| 2028 | USD 36.1 bn |
| 2029 | USD 38.4 bn |
| 2030 | USD 40.8 bn |
| 2031 | USD 43.4 bn |
| 2032 | USD 46.1 bn |
| 2033 | USD 49.0 bn |
| 2034 | USD 52.1 bn |
| 2035 | USD 55.4 bn |
| 2036 | USD 58.9 bn |
Effluent Treatment Plant market segmentation
By treatment process
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Physical and chemical | 32.0% | 26.8% | USD 10.2 bn | 4.4% |
| Biological | 36.0% | 33.1% | USD 11.5 bn | 5.4% |
| Membrane filtration | 20.0% | 25.5% | USD 6.4 bn | 8.9% |
| Zero liquid discharge | 12.0% | 14.6% | USD 3.8 bn | 8.4% |
By end use
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Chemicals and petrochemicals | 24.0% | 23.8% | USD 7.7 bn | 6.2% |
| Food and beverage | 16.0% | 15.8% | USD 5.1 bn | 6.2% |
| Textiles and dyeing | 14.0% | 13.2% | USD 4.5 bn | 5.7% |
| Pharmaceuticals | 12.0% | 14.3% | USD 3.8 bn | 8.2% |
| Metals and mining | 18.0% | 17.0% | USD 5.8 bn | 5.7% |
| Power and other | 16.0% | 15.8% | USD 5.1 bn | 6.2% |
By plant capacity
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Under 100 cubic metres a day | 21.0% | 17.0% | USD 6.7 bn | 4.1% |
| 100 to 1,000 cubic metres a day | 44.0% | 42.0% | USD 14.1 bn | 5.8% |
| Over 1,000 cubic metres a day | 35.0% | 41.0% | USD 11.2 bn | 8.0% |
By offering
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Equipment supply | 39.0% | 34.0% | USD 12.5 bn | 4.8% |
| Turnkey design and construction | 37.0% | 38.0% | USD 11.8 bn | 6.6% |
| Operation and maintenance services | 24.0% | 28.0% | USD 7.7 bn | 8.0% |
By plant ownership
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Captive on-site plants | 56.0% | 51.0% | USD 17.9 bn | 5.3% |
| Common effluent treatment plants | 32.0% | 34.0% | USD 10.2 bn | 7.0% |
| Municipal industrial-zone plants | 12.0% | 15.0% | USD 3.8 bn | 8.7% |
Top 25 countries for effluent treatment plant by revenue
Countries are ranked by revenue earned from sales in the country, not by where the product is made. The ten largest hold 81.0% of 2026 revenue and the 25 countries below together hold 94.4%.
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| # | Country | Value 2026 | Share 2026 | Value 2036 | CAGR 2026-36 |
|---|---|---|---|---|---|
| 1 | China | USD 9.9 bn | 31.0% | USD 18.6 bn | 6.5% |
| 2 | India | USD 4.5 bn | 14.0% | USD 11.1 bn | 9.5% |
| 3 | United States | USD 3.8 bn | 12.0% | USD 5.7 bn | 4.1% |
| 4 | Germany | USD 1.6 bn | 5.0% | USD 2.2 bn | 3.4% |
| 5 | Japan | USD 1.3 bn | 4.0% | USD 1.7 bn | 2.9% |
| 6 | Saudi Arabia | USD 1.1 bn | 3.5% | USD 2.3 bn | 7.5% |
| 7 | Brazil | USD 958 mn | 3.0% | USD 1.7 bn | 5.9% |
| 8 | Indonesia | USD 958 mn | 3.0% | USD 2.2 bn | 8.6% |
| 9 | South Korea | USD 958 mn | 3.0% | USD 1.6 bn | 5.2% |
| 10 | Italy | USD 799 mn | 2.5% | USD 1.1 bn | 3.4% |
| 11 | United Kingdom | USD 760 mn | 2.4% | USD 1.2 bn | 4.9% |
| 12 | France | USD 633 mn | 2.0% | USD 1.0 bn | 4.9% |
| 13 | Mexico | USD 530 mn | 1.7% | USD 1.0 bn | 7.0% |
| 14 | Turkey | USD 441 mn | 1.4% | USD 712 mn | 4.9% |
| 15 | Thailand | USD 367 mn | 1.1% | USD 730 mn | 7.1% |
| 16 | Vietnam | USD 307 mn | 1.0% | USD 695 mn | 8.5% |
| 17 | Taiwan | USD 256 mn | 0.8% | USD 418 mn | 5.0% |
| 18 | Spain | USD 214 mn | 0.7% | USD 347 mn | 5.0% |
| 19 | Bangladesh | USD 179 mn | 0.6% | USD 406 mn | 8.5% |
| 20 | Canada | USD 150 mn | 0.5% | USD 241 mn | 4.9% |
| 21 | Pakistan | USD 125 mn | 0.4% | USD 247 mn | 7.1% |
| 22 | Malaysia | USD 105 mn | 0.3% | USD 206 mn | 6.9% |
| 23 | Russia | USD 86 mn | 0.3% | USD 118 mn | 3.2% |
| 24 | Egypt | USD 73 mn | 0.2% | USD 141 mn | 6.8% |
| 25 | Australia | USD 61 mn | 0.2% | USD 100 mn | 5.1% |
| Rest of world | USD 1.8 bn | 5.6% | USD 3.0 bn | 5.3% |
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
Competitive landscape
Group 1: Global leaders
- Veolia
- SUEZ
- Xylem
- Kurita Water Industries
- Ecolab
- Aquatech
- Organo Corporation
Group 2: Regional and specialist players
- Ovivo
- VA Tech Wabag
- Thermax
- Pentair
- Ion Exchange (India)
- Praj Industries
- Beijing Originwater Technology
- Paques
Group 3: Emerging and niche players
- Fluence Corporation
- Genesis Water Technologies
- Driplex Water Engineering
- Wehrle Umwelt
- Condorchem Envitech
Research methodology
Every figure on this page comes from the research framework that we apply to all of the markets we cover. The 2025 base for the effluent treatment plant market is built from the volume sold and the price that buyers pay, and is cross-checked against the size of the wider industry the market belongs to. Where a market can be sized in more than one way, the routes are compared before a figure is set.
The forecast runs year by year from the 2025 base to 2036. Growth in each year reflects demand from the industries that buy the product, adoption of new technology, pricing, regulation and replacement cycles. Volume and price are modelled together, so revenue in each year equals volume multiplied by average price. The 2026 to 2036 compound annual growth rate of 6.3% is calculated from the resulting values.
The market is divided by treatment process, by end use, by plant capacity, by offering, by plant ownership. The 25 largest countries are ranked by revenue earned from sales to buyers in each country, not by where the product is made. Segment values and country values add up to the market total in every year, and every report is checked for consistency before it is published.
Companies are placed in three groups: global leaders, regional and specialist players, and emerging and niche players. The groups describe how companies compete in the market. They are not a ranking and they are not market shares.
Our analysts also carry out primary research. Customized reports add interviews with key opinion leaders, such as senior executives, technical specialists and buyers, to test the assumptions behind the numbers for the question being asked.
Frequently asked questions
How big is the effluent treatment plant market?
The global effluent treatment plant market is estimated at USD 30.0 bn in 2025 and USD 31.9 bn in 2026.
How fast will the effluent treatment plant market grow?
It is forecast to reach USD 58.9 bn by 2036, a compound annual growth rate of 6.3% from 2026, an increase of USD 26.9 bn.
Which country is the largest market for effluent treatment plant?
China is the largest market by revenue at USD 9.9 bn in 2026, 31.0% of the global total. The three largest countries together hold 57.0%.
Which country is growing fastest?
Among the ten largest markets, India is growing fastest at 9.5% a year from 2026 to 2036.
Which effluent treatment plant segment is largest?
In the by treatment process split, Biological is the largest segment with 36.0% of 2026 revenue.
Who are the leading effluent treatment plant companies?
Global leaders include Veolia, SUEZ, Xylem, Kurita Water Industries.
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