According to TechSci Research report, the Global Water Treatment Chemicals Market is projected to grow from USD 39.14 billion in 2025 to USD 51.59 billion by 2031, registering a CAGR of 4.71% during 2026–2031. Water treatment chemicals include coagulants, flocculants, biocides, corrosion inhibitors, scale inhibitors, chelating agents, and other specialized formulations used to improve water quality.
The growth of the water treatment chemicals industry is primarily supported by rapid urbanization, increasing demand for potable water, stricter wastewater discharge regulations, and expanding industrial activity. Power generation, manufacturing, oil and gas, mining, food and beverage, and municipal water systems require consistent treatment solutions to maintain water quality and meet environmental standards.
However, volatility in raw material costs and regional manufacturing competitiveness remains a key challenge for the Global Water Treatment Chemicals Market. According to the European Chemical Industry Council, capacity utilization in the European chemical industry remained around 75% in 2024, reflecting pressure from high energy costs and regulatory constraints.
The Water Treatment Chemicals Market Size was valued at USD 39.14 billion in 2025 and is expected to reach USD 51.59 billion by 2031. The market is forecast to expand at a 4.71% CAGR from 2026 to 2031, supported by increasing investment in wastewater treatment, water reuse, desalination, and industrial process-water management.
The Coagulants & Flocculants segment is expected to be the fastest-growing segment, while Asia Pacific is projected to remain the largest regional market. Rising demand for efficient water purification and increasing regulatory requirements are expected to strengthen the long-term water treatment chemicals market growth.
The implementation of stringent environmental regulations is a major driver of the Global Water Treatment Chemicals Market. Governments and regulatory agencies are introducing tighter limits for contaminants in drinking water and industrial wastewater, compelling municipalities and industrial facilities to upgrade their treatment processes.
The growing focus on per- and polyfluoroalkyl substances (PFAS) is creating additional demand for specialized water treatment chemical solutions. According to the American Chemistry Council, April 2024, the American Water Works Association estimated that compliance with new federal PFAS standards could cost water systems approximately USD 4 billion annually.
These regulatory requirements are increasing the use of coagulants, flocculants, ion-exchange materials, and other treatment chemicals. As industries prioritize regulatory compliance, the water treatment chemicals market forecast remains positive across municipal and industrial applications.
Growing water scarcity is accelerating investments in water recycling, wastewater treatment, desalination, and water reuse technologies. Industries and municipalities are increasingly adopting advanced treatment processes to recover water for industrial operations, irrigation, and potable applications.
According to UNESCO, March 2024, approximately half of the world's population experiences severe water scarcity for at least part of the year. This situation is increasing the need for efficient water treatment chemicals that can support water recovery and purification.
The financial performance of major industry participants also reflects this demand. According to Veolia, February 2024, its Water Technologies business generated sales of €4,707 million, representing a 12.1% increase. Such developments highlight the growing commercial importance of water treatment solutions.