Water treatment mentions to the process that extracts or reduces pollutants and unwanted components from water so that it is suitable for end-use, and the chemicals required in this method are referred to as water treatment chemicals such as Algicide, Chlorine, Chlorine dioxide, and other chemicals are some examples of water treatment chemicals. According to BlueQuark Research & Consulting, the global water treatment chemicals market is expected to witness a considerable growth rate during the forecasted period. Factors such as the increasing demand for chemically treated water from various end-use segments and stringent regulatory and sustainability mandates concerning the environment are driving the market for water treatment chemicals in the forecasted period. Further, the Water Treatment Chemical Market for flocculants and coagulants, defoamer, corrosion inhibitors, and pH boosters, among others, are awaited to experience exponential growth owing to the rapid growth of the industrial sector and urbanization. Furthermore, the requirement for clean water in oil and gas, water in power plants, mining, pulp and paper, and chemical processing industries is also expected to drive the growth of the water treatment chemicals market in the forecasted period. However, the introduction of several nanotechnology-based technologies is helping in the reduction of the use of chemicals in water treatment. Such alternative technologies restrain the growth of the water treatment chemicals market in the forecasted period. 

Water treatment chemicals are used in applications like treating used or polluted water from various end-use industries, including residential, commercial, and industrial. They are generally worn to treat contaminated water in water treatment plants.

Water treatment chemicals are utilized to treat water & wastewater and change water's physical & chemical properties for municipal and industrial applications. The contribution of pure water to households is one of the main requirements for all governments. The increasing scarcity of potable water, coupled with the growing population and increasing water demand, is the primary concern driving the need for the membrane water treatment chemicals market worldwide.​ Municipal wastewater refers to the water from toilets, showers, sinks, bathrooms, washing machines, dishwashers, and liquid industrial waste. Municipal sewage should be treated before releasing it into the environment to avoid damaging the environment and spreading harmful diseases. Freshwater resources report for only 2.5% of the total water resources globally, making the water supply for industrial and domestic utilization a tough challenge. The widening gap between the need and supply of water makes it necessary to recycle it, which can be undertaken by efficiently treating it with water treatment chemicals. As a result, wastewater treatment chemicals consumption has increased from various end-use segments such as power generation, mining, chemicals, oil & gas, etc. With rising industrial expansions, the demand for fresh and clean water for domestic, agricultural, and industrial purposes has increased significantly in emerging economies. As a result, the need for water treatment chemicals in such regions is higher than in developed countries. 

Asia-Pacific region is predicted to be the biggest market for global water treatment chemicals due to the existing high demand from countries like Japan, China, and India. During the forecasted period, Asia Pacific countries are expected to drive the market. The sudden economic development and urbanization in China are likely to propel the growth of several industries, such as municipal, chemical, food and beverages, oil and gas, and power generation, which, in turn, is likely to improve the demand for water treatment chemicals. In addition, most of China's population relies on groundwater sources for drinking water, either untreated or not treated adequately by municipal water suppliers. The need for water treatment chemicals increases. The prime factor for developing the global water treatment chemicals market is rising water pollution. Despite improvements in some regions, water pollution increases globally due to the growing population and urbanization. The rise in the river input of nitrogen loads into coastal ecosystems is predicted to grow by 10%-15% in the coming years. Power generation is anticipated to be the largest end-user industry of water treatment chemicals due to the increasing number of electric power generation plants and the many impurities. The need for water treatment in the industrial sector increases due to rapid industrialization in developing countries and substantial development in several key markets. Every industry consumes water for various applications, including chemical processing, food & beverage, oil & gas, paper & pulp, metal & mining, and power generation that require water treatment chemicals to treat essential water usage. Oil and gas appeared as a prominent end-use segment due to high oil refineries consumption and, consequently, high wastewater generation. Petroleum refineries and chemical plants utilize steam and water for various desalination processes to fluid catalytic cracking units, cooling towers, and steam generators. The shortage of pure water has led to efficient treatment processes to carry out maintainable and reliable operations in petroleum disinfectant and chemical plants. This is predicted to boost the demand for oil & gas end-use chemicals over the forecast period.

The water treatment chemicals market is fragmented with a few significant players, such as BASF SE, Albemarle Corporation, The Dow Chemical Company, and Ashland Incorporated.

In January 2019, BASF merged its paper wet-end and water chemicals business with Solenis. The combined industry is expected to operate under the Solenis name and offer increased sales, service, and production capabilities across the globe.

In October 2021, Ecolab acquired Purolite to provide high-quality purification and separation solutions. The agreement is set up as a cash transaction worth USD 3.7 billion.

In June 2021, Kemira announced two investments to expand capacity in water treatment chemicals at its Yanzhou site in China to serve the surging Asia-Pacific market.

Global Water Treatment Chemicals Market report provides deep insight into the water treatment chemicals market's current and future state across various regions. The study comprehensively analyzes the water treatment chemicals market by segmenting based on Product Type (Biocides & Disinfectants, Coagulants & Flocculants, Corrosion Inhibitors, pH Control Agents, Scale Control Agents, Foam Control Agents, Chelating Agents, and Others), End-User Industry (Municipal, Pulp & Paper, Food & Beverage, Mining & Mineral Processing, Power Generation, Oil & Gas, and Others) and Geography (Asia-Pacific, North America, Europe, South America, and Middle-East and Africa). The report examines the market drivers and restraints and the impact of Covid-19 on market growth in detail. The study covers & includes emerging market size, trends, developments, opportunities, and challenges in the industry. This report also covers extensively researched competitive landscape sections with profiles of prominent companies, including their market shares and projects.