Press Release

Advanced Oxidation Processes in Water Treatment Market is Expected to grow at a robust CAGR of 4.18% through 2030F

The increasing global advanced oxidation processes in water treatment market is driven by integration of AOPs in hybrid and multi-barrier treatment systems, rising adoption of AOPs in industrial wastewater reuse during the forecast period 2026-2030F.


According to TechSci Research report, “Advanced Oxidation Processes in Water Treatment Market – Global Industry Size, Share, Trends, Competition Forecast & Opportunities, 2020-2030F”, The Global Advanced Oxidation Processes in Water Treatment Market was valued at USD 724.11 Million in 2024 and is expected to reach USD 934.12 Million by 2030 with a CAGR of 4.18% during the forecast period. A key trend in the global AOP market is the integration of AOPs into hybrid water treatment systems, combining them with biological, membrane, adsorption, or electrochemical technologies. As water contamination becomes more complex due to the presence of pharmaceuticals, PFAS, microplastics, and resistant organics, standalone systems often fall short. Hybrid systems address this by utilizing the strengths of multiple technologies. AOPs are increasingly being paired with membrane filtration (e.g., ultrafiltration or nanofiltration) to remove dissolved contaminants while ensuring long-term membrane life. In municipal wastewater, AOPs are used post-biological treatment to degrade residual micro-pollutants and antibiotics, enhancing water safety and enabling reuse.

In industrial applications, AOPs are integrated with biological reactors and ion exchange units to meet discharge norms more reliably. The multi-barrier approach ensures robustness and flexibility across varying influent conditions. For example, the combination of UV/HO and membrane bioreactors is now widely used in pharmaceutical effluent treatment. Hybrid systems also help reduce the limitations of AOPs—such as high energy use or formation of byproducts—by balancing reaction conditions and loading rates across multiple units. This trend is especially visible in Zero Liquid Discharge (ZLD) applications, where AOPs act as polishing steps to minimize residual COD before crystallization. The growing preference for customized, plug-and-play treatment trains has further fueled this trend. Equipment manufacturers now offer modular hybrid AOP systems with integrated controls, making them more scalable and user-friendly. As regulatory frameworks emphasize holistic water quality and sustainability, hybrid AOP systems are poised to become standard in high-performance treatment facilities globally.

 

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Based on technology, non-hydroxyl radical-based AOPs is the fastest growing segment in the global Advanced Oxidation Processes in Water Treatment market during the forecast period, due to their enhanced stability, selectivity, and applicability in challenging treatment environments. Unlike traditional AOPs that rely on hydroxyl radicals (•OH) for pollutant degradation, non-hydroxyl radical-based systems utilize alternative reactive species such as sulfate radicals (SO), superoxide anions (O), or singlet oxygen (¹O). These species exhibit higher oxidation potential in specific pH ranges and offer better resistance to radical scavenging, particularly in complex wastewater matrices. Sulfate radical-based AOPs (SR-AOPs), for instance, are gaining significant attention due to their strong oxidative power, longer lifespan in solution, and effectiveness across a wider pH range (3–9) compared to hydroxyl radicals. They also demonstrate superior performance in high-salinity and high-organic-load wastewaters, making them well-suited for industrial sectors like textiles, pharmaceuticals, oil & gas, and petrochemicals.

The growing need to treat difficult-to-degrade contaminants such as PFAS, chlorinated solvents, and certain pharmaceuticals has driven interest in these advanced technologies. SR-AOPs, activated using persulfates or peroxymonosulfates and catalysts (e.g., transition metals, UV light, or heat), are showing greater removal efficiency for such micropollutants, contributing to their market momentum. Moreover, increasing R&D investments, pilot-scale deployments, and favorable test results are accelerating the commercialization of non-hydroxyl AOPs. Several startups and technology developers are focusing on scalable, low-energy variants of these systems, which appeal to industries seeking sustainable yet robust treatment options. With regulatory bodies tightening discharge limits and industries facing mounting environmental pressures, non-hydroxyl radical-based AOPs are emerging as a next-generation solution. Their operational flexibility, targeted pollutant removal, and potential for integration with hybrid systems position them as the fastest-growing technology segment in the evolving AOP market landscape.

Based on region, Asia Pacific is the fastest growing region in the Global Advanced Oxidation Processes in Water Treatment Market during the forecast period driven by rapid industrialization, rising water pollution levels, and increasing regulatory pressure to improve water quality. Countries like China, India, and Southeast Asian nations are experiencing growing demand for advanced water treatment solutions due to urban expansion, high population density, and deteriorating freshwater resources. The region faces severe challenges from industrial wastewater discharge, particularly from sectors such as textiles, chemicals, pharmaceuticals, and electronics. Many of these effluents contain persistent organic pollutants and emerging contaminants that cannot be effectively removed by conventional treatment methods. AOPs, with their ability to break down refractory compounds, are increasingly being adopted in industrial zones and special economic regions to meet discharge compliance and enable water reuse.

Governments in the region are also tightening environmental norms. For example, China’s Water Pollution Prevention and Control Action Plan and India’s National Mission for Clean Ganga both include strong mandates for upgrading wastewater treatment infrastructure, including advanced oxidation technologies. Moreover, policy shifts encouraging Zero Liquid Discharge (ZLD) practices are creating a favorable environment for AOP adoption in heavy industries. Additionally, the Asia Pacific region is investing heavily in smart water infrastructure, including IoT-enabled and automated AOP systems. Local and global players are expanding manufacturing and R&D capacities in the region to meet rising demand, supported by government incentives and public-private partnerships. The increasing focus on sustainability, circular economy principles, and water reuse, especially in urban developments and industrial clusters, further contributes to the surge in AOP installations. With a growing awareness of water quality issues, expanding regulatory frameworks, and rising industrial activity, Asia Pacific is poised to lead global growth in the adoption of AOP technologies throughout the forecast period.

 

Key market players in the Global Advanced Oxidation Processes in Water Treatment market are: -

  • Veolia Water Technologies  
  • Xylem Inc.
  • AQUAFINE Corporation
  • Trojan Technologies
  • Kurita Water Industries Ltd.
  • Calgon Carbon Corporation
  • Advanced Oxidation Technologies
  • Pall Corporation
  • Lenntech B.V.
  • Aquatech International              

 

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The Global Advanced Oxidation Processes (AOPs) in Water Treatment Market offers strong growth opportunities driven by increasing demand for water reuse, rising concern over emerging pollutants, and stricter environmental regulations. Expanding industrialization in developing regions, especially Asia Pacific and the Middle East, creates demand for high-efficiency wastewater treatment solutions. Technological advancements in low-energy and modular AOP systems further enhance adoption potential. Additionally, growing interest in decentralized and autonomous water treatment, supported by public-private partnerships and ESG commitments, presents new avenues for deployment. AOP integration in hybrid systems and ZLD projects also offers long-term market scalability and sustainability benefits.Top of Form” said Mr. Karan Chechi, Research Director of TechSci Research, a research-based Global management consulting firm.

“Advanced Oxidation Processes in Water Treatment Market - Global Industry Size, Share, Trends, Opportunity, and Forecast, Segmented By Technology (Hydroxyl Radical-Based AOPs, Non-hydroxyl Radical-Based AOPs, Electrochemical AOPs, Photocatalysis), By Reactor Type (Batch Reactors, Continuous Flow Reactors, Fixed-Bed Reactors, Suspension Reactors), By Application (Drinking Water Treatment, Industrial Wastewater Treatment, Municipal Wastewater Treatment, Groundwater and Soil Remediation, Recycled Water Treatment, Others), By Region & Competition, 2020-2030F,” has evaluated the future growth potential of Global Advanced Oxidation Processes in Water Treatment Market and provides statistics & information on market size, structure, and future market growth. The report intends to provide cutting-edge market intelligence and help decision makers take sound investment decisions. Besides the report also identifies and analyzes the emerging trends along with essential drivers, challenges, and opportunities in Global Advanced Oxidation Processes in Water Treatment Market.

 

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