The water treatment chemicals market size is expected to increase from USD 41.78 billion in 2025 to USD 44.06 billion in 2026 and reach USD 57.48 billion by 2031, growing at a CAGR of 5.46% over 2026-2031. This report is Segmented by Product Type (Coagulants, Biocides, Corrosion Inhibitors, Scale Inhibitors, PH Conditioners, and More), End-User (Power, Municipal, Semiconductors, Mining, and More), Application (Cooling, Wastewater, Ultra-Pure, Desalination, and More), Treatment Stage (Primary, Secondary, Tertiary, Sludge), and Geography (Asia-Pacific, North America, and More). Forecasts in Value (USD).
Other drivers and restraints analyzed in the detailed report include:
In 2025, municipal utilities, bolstered by India's Jal Jeevan Mission, accounted for 35.78% of total spending, utilizing significant quantities of water treatment chemicals that year. The semiconductor sector, fueled by Intel's Ohio fabrication plant and Samsung's facility in Texas, has been experiencing a 6.84% CAGR in the forecast period (2026-2031), as both ramp up their ultra-pure water systems, necessitating ongoing mixed-bed resin regeneration.
Global Water Treatment Chemicals Market Trends and Insights
Tightening Discharge Norms for Heavy Metals and Nutrients
In 2024, the U.S. Environmental Protection Agency (EPA) revised effluent ceilings, and in 2025, China's Ministry of Ecology and Environment followed suit These changes forced operators to switch from the conventional ferric chloride to the more specialized polyaluminum chloride. This transition allowed them to meet the stringent residual metal targets set below the required levels. Concurrently, the European Union's 2025 Urban Wastewater Treatment Directive capped total phosphorus in sensitive catchments. As a result, demand surged for ferric sulfate-polymer blends, which effectively minimized the need for alkali additions.Industrial Zero-Liquid-Discharge Mandates in Power and Mining
In 2026, China's National Development and Reform Commission mandated coal-chemical plants to implement Zero Liquid Discharge (ZLD) rules. This directive curtailed the daily chemical consumption for a standard 600 MW unit, covering antiscalants, biocides, and dispersants. Similarly, in 2024, India's Central Pollution Control Board enforced similar mandates on thermal power stations located across 13 river basins. This resulted in an increased demand for oxygen scavengers and sludge-conditioning polymers during the forecast period of 2026-2031.Volatile Raw-Material Prices for Specialty Polymers and Biocides
From early 2024 to mid-2025, production curtailments driven by gas shortages in China's Shandong province caused notable swings in acrylamide monomer prices. These price changes subsequently pushed up the costs of delivered flocculants. In Europe, a fire incident that significantly reduced isothiazolinone capacity led to rising biocide premiums, particularly impacting buyers without long-term contracts.Other drivers and restraints analyzed in the detailed report include:
- PFAS-Specific Remediation Regulations Boosting Demand for GAC and IX Resins
- Ultra-Pure Water Demand from Green-Hydrogen Electrolyzers
- Electro-Oxidation Micro-Reactors Lowering Coagulant Use
Segment Analysis
Coagulants and flocculants dominated the water treatment chemicals market, capturing 37.89% of the revenue in 2025, with a projected growth rate of 5.89% during the forecast period of 2026-2031. In the Asia-Pacific region, polyaluminum chloride is replacing alum due to its ability to produce significantly less sludge over a wider pH range, which reduces lime consumption in plants. Biocides, traditionally used in standard facilities with substantial daily capacities, are now being increasingly adopted in data-center cooling loops. Following the European Union's 2025 classification of certain phosphonates as persistent and mobile, scale inhibitors are under heightened scrutiny.In 2025, municipal utilities, bolstered by India's Jal Jeevan Mission, accounted for 35.78% of total spending, utilizing significant quantities of water treatment chemicals that year. The semiconductor sector, fueled by Intel's Ohio fabrication plant and Samsung's facility in Texas, has been experiencing a 6.84% CAGR in the forecast period (2026-2031), as both ramp up their ultra-pure water systems, necessitating ongoing mixed-bed resin regeneration.
Complete Report Scope:
- By Product Type
- Coagulants and Flocculants
- Defoamer and Defoaming Agent (Antifoams)
- Oxygen Scavengers
- Corrosion Inhibitors
- Biocide and Disinfectants
- Oxidants
- PH Conditioners/Adjuster
- Sludge Conditioners
- Scale Inhibitors
- Organic Chemicals/Odor Removal (Activated Carbon)
- Other Product Types
- By End-user Industry
- Power Generation
- Oil and Gas
- Chemical Manufacturing
- Mining and Mineral Processing
- Municipal Water and Wastewater Utilities
- Food and Beverage
- Pulp and Paper
- Metals and Steel
- Semiconductor and Electronics
- Others (Pharmaceuticals and Life-Sciences)
- By Application
- Boiler Water Treatment
- Cooling Water Treatment
- Raw Water/Intake Clarification
- Wastewater/Effluent Treatment
- Desalination and RO Pre-treatment
- Ultra-pure/High-Purity Water
- By Treatment Stage
- Primary (Coagulation-Flocculation)
- Secondary (Biological Adjunct Chemicals)
- Tertiary and Advanced (AOPs, Disinfection)
- Sludge Handling and Conditioning
- By Geography
- Asia-Pacific
- China
- India
- Japan
- South Korea
- ASEAN Countries
- Rest of Asia-Pacific
- North America
- United States
- Canada
- Mexico
- Europe
- Germany
- United Kingdom
- France
- Italy
- Russia
- Scandinavia
- Rest of Europe
- South America
- Brazil
- Argentina
- Rest of South America
- Middle-East and Africa
- Saudi Arabia
- United Arab Emirates
- Qatar
- Nigeria
- South Africa
- Rest of Middle-East and Africa
- Asia-Pacific
Geography Analysis
In 2025, the Asia-Pacific region accounted for 47.71% of the revenue and is projected to grow at a rate of 6.92% in the forecast period of 2026-2031. This growth is largely driven by China's Zero Liquid Discharge (ZLD) retrofits and India's Amrut 2.0 sewage initiative, which alone requires significant quantities of chemicals. North America, capturing a notable portion of 2025's sales, sees its market buoyed by new PFAS regulations and chip fabrication initiatives, bolstered by the CHIPS Act. Europe, holding a considerable share, is swayed by nutrient removal targets, particularly the push to reduce phosphorus levels to 0.5 mg/L in sensitive areas. The Middle East and Africa, together contributing a significant portion, are driven by Saudi Arabia's ambitious plan to achieve a large-scale desalination capacity by 2030. South America is reaping the benefits of Brazil's sanitation mandate, which aims for nearly universal potable water coverage by 2033.List of Companies Covered in this Report:
- Aditya Birla
- AECI Water
- Albemarle
- Baker Hughes
- BASF SE
- Buckman
- Chemtrade Logistics
- ChemTreat
- Dow
- DuPont
- Ecolab
- Genesys
- Ion Exchange (India)
- Kemira
- Kurita Water Industries
- Lanxess
- Nouryon
- SNF
- Solenis
- Solvay
- Sudoc
- SUEZ
- Thermax
- USALCO
- Veolia
- Watch Water
Additional Benefits:
- The market estimate (ME) sheet in Excel format
- 3 months of analyst support
Table of Contents
1 Introduction
4 Market Landscape
5 Market Size and Growth Forecasts (Value)
6 Competitive Landscape
7 Market Opportunities and Future Outlook
Companies Mentioned (Partial List)
A selection of companies mentioned in this report includes, but is not limited to:
- Aditya Birla
- AECI Water
- Albemarle
- Baker Hughes
- BASF SE
- Buckman
- Chemtrade Logistics
- ChemTreat
- Dow
- DuPont
- Ecolab
- Genesys
- Ion Exchange (India)
- Kemira
- Kurita Water Industries
- Lanxess
- Nouryon
- SNF
- Solenis
- Solvay
- Sudoc
- SUEZ
- Thermax
- USALCO
- Veolia
- Watch Water
