Water infrastructure across the Gulf Cooperation Council (GCC) is evolving as population growth, urban development, industrial activity, and increasing demand for reliable water services strengthen the need for effective treatment and disinfection. Chlorine gas remains an important solution for large-scale water purification and wastewater treatment because of its established disinfection capabilities and suitability for continuous treatment operations. Alongside demand, safe handling, storage, dosing, and monitoring remain essential considerations for facilities using chlorine gas.
A recent study by Markntel Advisor states that the GCC chlorine gas sector was valued at USD 1.11 billion in 2025 and is projected to reach USD 1.21 billion in 2026 and USD 2.98 billion by 2032, registering a CAGR of 16.21% during 2026–2032. The sector’s development is being influenced by water-treatment infrastructure, wastewater management, industrial applications, sanitation requirements, and the need for controlled disinfection systems.
Water Treatment Remains a Core Application
Chlorine is widely used to control microorganisms in water-treatment systems. Large treatment facilities can use chlorine gas as part of disinfection processes where consistent chemical dosing and large treatment volumes are required.
The World Health Organization explains that chlorine gas is typically used in larger water-treatment plants because of the infrastructure, expertise, supply arrangements, and safety requirements associated with gas dosing systems. Its guidance on strengthening chlorination practices describes chlorine gas as an important option for larger-scale drinking-water treatment facilities.
This makes continued investment in major water infrastructure an important factor supporting chlorine-related applications.
Desalination Supports Regional Demand
Water scarcity is a major consideration across the GCC, where desalination and advanced water-treatment systems play an important role in supporting municipal and industrial water supplies. Disinfection forms part of broader treatment and distribution processes.
The UAE Department of Energy’s Guide to Water Supply Regulations 2024 includes chlorination procedures for newly installed water systems, including specified chlorine concentrations, contact periods, flushing, and subsequent testing.
Such requirements demonstrate the importance of controlled disinfection within regional water infrastructure.
Wastewater Treatment Creates Additional Opportunities
Wastewater treatment is another important application area for chlorine-based solutions. Municipal and industrial wastewater facilities may require disinfection before treated water is released, reused, or transported through designated systems.
Saudi Arabia’s National Platform provides a wastewater-treatment licensing service through the Saudi Water Authority for establishing and operating location-specific wastewater treatment plants and the wholesale sale of treated water. This reflects continued development and formal management of treated-water infrastructure.
As wastewater reuse and treatment capacity expand, facilities may require reliable chemical-disinfection systems alongside filtration, biological treatment, and other processes.
Industrial Facilities Require Controlled Disinfection
Industrial facilities across the GCC can require treated water for manufacturing, cooling, processing, cleaning, and other operations. Water quality can influence equipment performance, production processes, and maintenance requirements.
Chlorine-based treatment can form part of broader water-management systems where microbial control is required. Industrial users may therefore need chemical dosing equipment, storage systems, monitoring technologies, and trained personnel in addition to chlorine supplies.
Swimming Pools Add Recreational Applications
The region’s hospitality, residential, and recreational infrastructure also creates demand for water disinfection. Swimming pools require regular chemical treatment to maintain appropriate water quality and control microorganisms.
While smaller facilities may commonly use chlorine-based products in forms other than gas, larger or specialized water-treatment operations can require more sophisticated dosing and monitoring systems. This creates opportunities for suppliers of disinfection chemicals, dosing equipment, sensors, and maintenance services.
Safety Becomes Increasingly Important
Chlorine gas requires careful management because it is toxic and can pose serious risks if released. Facilities therefore need appropriate storage, leak detection, ventilation, emergency-response procedures, protective equipment, and employee training.
Saudi Arabia’s Ministry of Environment, Water and Agriculture provides dedicated chlorine safety precautions for workers in water-purification and sewage-treatment plants. The document describes chlorine gas as toxic and highlights procedures for safe handling in treatment facilities.
This emphasis on safety can encourage investment in modern chlorine-management infrastructure.
Automated Dosing Improves Operational Control
Automated dosing systems can help treatment facilities maintain consistent chlorine application according to water conditions and operational requirements. Sensors and control systems can monitor relevant parameters and allow operators to adjust dosing more accurately.
Automation can reduce manual intervention and support more consistent treatment performance. It can also provide operational data that helps identify abnormal conditions and improve preventive maintenance.
Water Quality Standards Support Monitoring
Water-quality regulations and treatment standards are encouraging operators to maintain stronger monitoring practices. Dubai’s Regulatory and Supervisory Bureau, for example, specifies chlorine parameters within its Water Quality Regulations, including limits for chlorine and other disinfectants in drinking-water systems.
Such requirements create demand for accurate measurement, controlled dosing, and reliable water-treatment processes.
Local Water Reuse Gains Attention
Water reuse is becoming increasingly important as GCC countries seek to manage scarce freshwater resources more efficiently. Treated wastewater can support agricultural, industrial, and urban applications when processed to appropriate standards.
Saudi Arabia’s government has recently highlighted treated-water services designed to support authorized agricultural, industrial, and urban uses while promoting resource efficiency. Its treated-water service guidance identifies sustainable use of treated water as an important objective.
This can create additional opportunities for treatment chemicals and disinfection technologies.
Advanced Treatment Supports Innovation
Water-treatment facilities are increasingly combining conventional chemical treatment with advanced technologies such as membrane systems, ultraviolet treatment, ozone, digital monitoring, and process optimization.
Saudi Arabia’s Ministry of Environment, Water and Agriculture identifies wastewater treatment and reuse as priority areas for water-sector innovation and highlights technologies including zero-liquid-discharge systems, nanobubbles, thermal hydrolysis, and AI-driven treatment optimization. Its water-sector innovation report reflects the growing focus on advanced treatment technologies.
Future Growth Remains Water-Focused
The GCC chlorine gas sector is developing alongside desalination, municipal water treatment, wastewater management, industrial water use, sanitation infrastructure, and increasing attention to water reuse. The projected increase from USD 1.21 billion in 2026 to USD 2.98 billion by 2032 indicates continued opportunities across large-scale treatment applications.
Future development is likely to remain connected with chlorine-based disinfection, automated dosing, water-quality monitoring, wastewater reuse, desalination infrastructure, and stronger safety systems. As GCC countries continue investing in reliable water infrastructure, chlorine gas is expected to remain an important component of large-scale treatment and disinfection operations.
