Treatment Technologies

    Advanced Oxidation Process Companies

    AOP suppliers, UV/H₂O₂, ozone, Fenton, and catalytic oxidation for refractory organics, PFAS, and trace contaminants.

    110 providers

    This page is a good fit if you need:

    • Ion Exchange or Advanced Oxidation Processes (AOPs) capabilities
    • Suppliers with manufacturing sector experience
    • Providers operating in United Kingdom or Netherlands
    Providers
    110
    Verified
    5
    Countries
    20

    Can't find the right fit? Post a brief and let qualified suppliers come to you.

    Post a project

    Find a Advanced Oxidation Process Provider

    Showing 81-100 of 110

    110 results from 110 matched providers

    AJ Engineering & Construction Services Ltd logo

    AJ Engineering & Construction Services Ltd

    United Kingdom

    AJ Engineering & Construction Services Ltd provide a wide spectrum of engineering services ranging from steel fabrication and CNC machining to cladding and civil engineering, with our highly experienced team we provide on-time, on-budget quality solutions. From our bases in Forres and Fort William, and a team accustomed to travel we can meet our client’s needs wherever required. Having worked on various water and wastewater treatment projects for the past 25 years we have developed a great working relationship with water companies across the UK. Our in-house capabilities allow us to offer a turnkey service to our clients from reactive maintenance and manufacturing to planned infrastructure and non-infrastructure projects. Many of the projects we undertake in the water sector are within water treatment and wastewater treatment plants where cleanliness is paramount, all our water sector site teams hold certification and Water Hygiene cards. Our range of services collated into one means that we can take on multiple discipline contracts and deliver them as one which provides our clients with a number of advantages. It removes the need to have multiple contractors on site at once. Benefits in cost savings passed down on procuring large amounts of steel for a side wide project. Little risk of dimensional discrepancies between contractors We work alongside framework delivery partners throughout the UK providing the services below; Steel portal frame buildings (design, fabrication, erection & cladding) Design, manufacture and installation of pipe bridges Design, manufacture and installation of site wide access metalwork (walkways, access stairs, ladders etc) Design, manufacture and installation of modular water buildings transportable by road. Design of various process tanks, pipework and pumps. Fabrication of tanks and pipework (stainless and carbon) Mechanical Installation Modular Treatment Buildings and Mechanical Fit-out SR2 rated steel enclosures (quicker than GRP Kiosks) We appreciate how important quality and cleanliness is in the water sector and we are proud that we have completely segregated facilities for stainless steel and carbon steel. In addition to this we are also approved under the regulations 31(4)(A) of the water supply regulations 2016 to supply stainless steel and pipework fabrications to the drinking water sector.

    Networks - Sewerage
    Asset Maintenance & Rehabilitation
    Amazon Filters Ltd logo

    Amazon Filters Ltd

    United Kingdom

    Founded in 1985, UK-based Amazon Filters Ltd is one of Europe’s leading manufacturers and suppliers of bespoke filtration technology such as filter cartridges and housings. Our comprehensive range of products support critical liquid and gas applications in many industries. With over 40 years of continuous support to municipal water companies, we are ideally placed to solve water quality problems with our bespoke cartridge filtration technology. From small boundary boxes installations to large volume fully containerised system and rentable mobile skids, we can manufacture and supply it all. We offer solutions for: Turbidity Control Metals Removal (iron / manganese) Cryptosporidium removal Chlorine reduction Let us support your AMP 8 commitments: Securing Long Term Resilience Securing Cost Efficiency Securing Confidence and Assurance We operate a range of ISO-accredited Quality Management Systems to ensure excellence in customer service. We provide high quality, reliable products and services that exceed client expectations. We help you worry less about the filtration process so you can focus on what you do best.

    Accreditations
    Amiblu UK LTD logo

    Amiblu UK LTD

    United Kingdom

    If you knew there was a material out there with a proven track record worldwide for outperforming others, would you want to know more about it? Using cutting edge technology to meet the toughest challenges, Amiblu manufactures GRP pipelines and storage systems that last for generations and do not corrode. GRP is a resilient, composite material utilised in many aspects of construction and civil engineering to deliver long lasting infrastructure. The history of Amiblu’s GRP systems starts with the first production of centrifugal cast (CC) pipes in Basel in 1957 and continuous filament wound (FW) pipes in 1969 in Norway using top quality raw materials combined with glass fibres to create robust pipes and storage solutions. Over the past 60+ years, research and development, growth and investment now puts Amiblu at the forefront of GRP pipe production, with seven state of the art manufacturing facilities and a global network of licensed partners producing the two market leading names in GRP pipes – Flowtite (FW) and Hobas (CC). Amiblu takes environmental responsibility very seriously by developing systems that offer a number of benefits to asset owners who are faced with aging networks, growing cities, climate change and increases in demand. Challenging traditional materials, our products are corrosion and abrasion resistant, with excellent hydraulics, can be bespoke made to meet project requirements, are low-maintenance and engineered for 150 years’ service life. Products are manufactured for: Sewage & stormwater Hydropower Circular & non-circular pipeline rehabilitation Potable & raw water delivery Industrial processes Micro-tunnelling applications. The greenest product is the one you don’t have to replace.

    Networks - Water Supply
    Asset Maintenance & Rehabilitation
    Anua Clean Air UK logo

    Anua Clean Air UK

    United Kingdom

    Anua Clean Air UK offers proven, patented clean air bio-technologies, which provide best-in-class process performance with the lowest utility and life cycle costs. Anua Clean Air manufactures and installs Mónafil™, Mónashell™ and Mónasorb™ systems. These are patented proven systems for the treatment of municipal and industrial odour and VOC air emissions. We have tested and proven installations right across the globe with proven capabilities in air purification and odour abatement in a wide variety of sectors including: Wastewater Treatment Industry | Food/Agri Industry | Municipal Solid Waste | Pharmaceutical/Petro Chemical/Printing‭ & ‬Coating/Other Industries.‬‬‬‬ Mónafil™ Control of hydrogen sulfide and VOCs is a concern in many wastewater treatment, composting and industrial plants. Hydrogen sulfide, and many VOC’s, create odours, are corrosive, cause air pollution and are detrimental to health. Mónafil™ is a patented biofiltration system that uses special media as a capture and support medium offering excellent removal efficiencies for odours, VOC’s, sulfur and nitrogen-based compounds. The properties of the manufactured granular high-density peat media have proven to be a key factor in achieving high performance removal and media life up to 10 years. Mónafil™ has been successfully used in odour control applications for more than 20 years. Mónashell™ The Mónashell™ biofiltration system is a proven and cost-effective alternative to chemical scrubbing or carbon adsorption, designed like a biotrickling system yet incorporating many benefits of traditional biofilters. The shell-based media is sustainable and renewable with the ability to maintain a neutral pH within the biofilter. This ensures optimal odour performance across a broad range of odour producing compounds, while simplifying operation and enhancing system reliability. Control of odour-causing compounds emitted from wastewater and industrial treatment processes has become a growing area of concern. As populations grow and housing encroaches on once-remote treatment facilities, the importance of effective, yet simple odour control technology will continue to increase. In addition, odourous compounds can be corrosive to equipment requiring ventilation to extend equipment life and reduce capital replacement expenditure. Mónasorb™ Control of hydrogen sulfide and VOCs is a concern in many wastewater treatment, composting and industrial plants. Hydrogen sulfide, and many VOC’s, create odours, are corrosive, cause air pollution and are detrimental to health. Mónasorb™ is a range of Carbon Filter systems that uses activated carbon, impregnated carbon as a capture and support medium, offering excellent removal efficiencies for odours, VOC’s, sulfur and nitrogen-based compounds. Our carbon units may be used as a standalone filter or as a polishing filter for a Mónashell™ OCU’s for even greater levels of treatment.

    Aquability OPS Ltd logo

    Aquability OPS Ltd

    United Kingdom

    Aquability OPS Ltd was established in 2015 and is a leading technical consultancy providing optimised process solutions in the wastewater treatment industry. We are trusted partners of water companies, contractors and consultants and a member of British Water - the trade body representing the supply chain to government and the water companies. Director, Nicola Henderson is a chartered Chemical Engineer with over 27 years experience in the water industry and is one of the UK’s leading SBR experts. She is well known in the industry and previous tenures include Director of British Water and Chairman of British Water’s Technical Forum and Municipal Group. After graduating from Bath University in 1990 with a degree in Chemical & Bio Process Engineering, Nicola started her career in wastewater treatment at British Steel, responsible for the operation of their water and wastewater treatment systems. She then spent 24 years working in the design and build arena where she gained widespread experience in the water industry across a number of fields. Aquability OPS draw on Nicola’s extensive experience to offer technical expertise and bid support in both municipal and industrial wastewater treatment. We combine a mix of technical knowledge and practical application, providing comprehensive, tailored services across four areas to provide: Process expertise to solve our clients’ wastewater treatment challenges. Leading SBR expertise to ensure your SBR plant is a success. Commissioning and operational support for effective commissioning and trouble free operation. Bid support to develop innovative cost effective solutions, focused and persuasive bid writing and creative, engaging presentations. Our services help our customers to win work, build knowledge, reduce delivery and operating costs and avoid compliance issues. Our goal is to deliver successful outcomes for our Clients and develop trusting and long lasting relationships.

    Designers
    Aquaspira Ltd logo

    Aquaspira Ltd

    United Kingdom

    Aquaspira designs and manufactures next-generation composite steel-reinforced pipes, delivering durable, low-carbon solutions for drainage and wider infrastructure projects. Aquaspira is a dynamic and innovative UK manufacturer specialising in large diameter composite steel-reinforced pipes for drainage, stormwater and wider infrastructure projects. Our technology combines advanced composites with steel reinforcement to deliver robust structural capacity with a much lower installation footprint and embodied carbon than traditional materials. We work in partnership with utilities, contractors, developers and asset owners to deliver resilient, sustainable systems that support long term network performance and reduced whole life cost. Approved for use across all UK water company regions, our pipe systems are recognised for their strength, durability and ease of installation, helping clients accelerate programme delivery and reduce disruption on site. Quality is embedded throughout our process, from material selection through to manufacturing and assurance. With a focus on innovation and sustainability, we’re helping shape the next generation of low-carbon infrastructure solutions while supporting our customers in meeting their performance, resilience and environmental goals.

    Stormwater Storage
    Accreditations
    Donegan Civil Engineering logo

    Donegan Civil Engineering

    United Kingdom

    Founded in 1992 by Managing Director Valentine J Donegan and built on a personal reputation, Donegan Civil Engineering is a family-owned award-winning business that delivers the capabilities, expertise, innovation and experience to undertake large scale projects as either principal contractor or specialist sub-contractor. Our areas of expertise for the private and public sector includes: Shaft-Sinking Pipe-Jacking TBM Tunnelling Micro Tunnelling Hand Driven Tunnelling (including Timber Headings) Complex Sewer Connections S185 Utility Diversions and Crossings Pipeline Construction Opencut Drainage Large Cofferdam Excavations Reinforced Concrete Structures With a proven 30-year track record of delivering a range of projects, Donegan Civil Engineering continues to build on our fantastic reputation to continue to collaborate and innovate to ensure we continue to deliver for our long list of established clients and potential new clients. We own, maintain and operate an extensive fleet of general civil engineering and specialist plant and equipment including; tunnel boring machines, micro tunneling systems, pipejacking systems, shaft-sinking equipment, cranes, wheeled & tracked excavators, generators and light and heavy goods transport. Our continued investment in up-to-date technologies and equipment, as well as the continued development of our highly skilled operational teams has reinforced and enhanced our capability in all areas of operations. As a business we endeavor to develop long-lasting relationships with our clients, and our business has grown predominantly from repeat work and framework opportunities. Our ethos is simple; construction is about providing a service and as such we always work collaboratively and flexibly with our clients in a spirit of openness and honesty. We work diligently with our clients to find innovative solutions to traditional construction problems whilst applying the latest information and construction technologies to help drive efficiencies and reduce waste in our processes without compromising on quality.

    Networks - Water Supply
    Accreditations
    Enisca Ltd logo

    Enisca Ltd

    United Kingdom

    Enisca is a multi-disciplinary design, engineering and construction business operating in the power and environmental sectors delivering innovative, sustainable and quality solutions for public and private sector clients in these markets. Enisca has developed and maintained strong partnerships and collaborative relationships in our industry. Our focus on safety, our customers’ needs, programme, cost and the efficiency of project delivery support our key objective of ensuring high levels of customer satisfaction. Design and construct Our experienced and skilled engineering teams work in partnership with our clients and related stakeholders from an optioneering stage through the cycle of design, construction, commissioning, training and handover to the aftercare of asset operation and maintenance. Process & MEICA design services. Feasibility ctudies and cite surveys. Carbon/energy and whole life cost assessment. Water treatment and pumping. Wastewater treatment and pumping. Industrial effluent treatment. Process plant and controls. Turnkey mechanical and electrical installation. Commissioning and training Our experienced skilled commissioning engineers (process, mechanical and electrical/control systems) endeavour to provide clients with a seamless, trouble free handover of completed projects from pre-commissioning through to process proving and training of operators. Power, control and automation Enisca Automation is the motor control centre and control systems integration division of Enisca. Enisca Automation provides a range of power distribution, control and automation solutions to a range of public, commercial and industrial clients. The Automation Division is TickIT accredited and our engineers work in partnership with our clients through the cycle of design, manufacture, commissioning, training and handover. Enisca Automation aftercare provision includes planned maintenance and service with emergency callout. MCC manufactured solutions to Form 2 and Form 4. ICA, SCADA, HMI and systems integration. G5/4 harmonic studies and reports. Power factor correction and surge protection. Thermographic surveys. Certified Profibus design and installation. Enisca Automation customers include a range of engineering & building services contractors, commercial and industrial business clients. Utilizing fully automated design, materials management, assembly and testing processes Enisca can supply product in compliance with the rigorous standards set out in BS EN 60439-1:1999 for low voltage switchgear and control gear assemblies, all products are fully CE certified. Process plant The in-house capabilities of our business set us apart. With the process, civil, mechanical, electrical and chemical engineering skills of our people we design and construct turnkey water and wastewater treatment and pumping solutions. In-house we design and manufacture water and wastewater process plant that can be incorporated into overall solutions. Our Power, Control and Automation Division designs, builds and commissions the motor control centres, automation software and SCADA systems that control our plants. Package treatment plants – Wastewater treatment for municipal and industrial applications. Package treatment plants – Potable water applications. Process plant manufacture. Screens. Scraper bridges. Picket fence thickeners. Package DAF plants. Package pumping stations and booster sets. Chemical dosing plants. Stormwater attenuation and pumping. Sampling and recording. Operation and maintenance Our operations and service engineers provide operation, maintenance, service and callout support. We have a strong, resourceful team to manage utility and industrial process plant installations. The Enisca Automation aftercare provision, includes planned maintenance and service with emergency callout.

    Networks - Water Supply
    Contractors
    EPS Water logo

    EPS Water

    United Kingdom

    EPS Water offers the market a unique end-to-end service, ranging from needs assessment and solution definition, through design, manufacture, installation & commissioning, to aftercare and operation of water & wastewater treatment assets. Our experience of operating and maintaining treatment systems helps to drive excellence in design and to ensure that our manufactured equipment is robust and reliable at all times. EPS offers a broad range of services across the UK regulated & industrial and global export water and wastewater treatment markets: Wet infrastructure support services. Design-Build (DB) and Design-Build-Operate (DBO) of water and wastewater treatment facilities. Biological process technology supply. Product manufacture & installation. Engineering Services including process and MEICA design, asset optimisation and energy management. Our focus is primarily on providing Best Value to our clients and their bill-paying customers at all stages of the project lifecycle. Our digital design capabilities extend beyond 3D to fully animated 4D including digital rehearsals and we are well-advanced on our journey to BIM Level 2. As treatment plant operators ourselves, we endeavour to live the culture of our clients and to ensure that our solutions provide best Whole Lifecycle Cost in operation. We offer a leading After Sales Service and a range of asset optimisation services to ensure that the performance of the solutions we provide does not deteriorate over time.

    Networks - Water Supply
    Contractors
    ERG (Air Pollution Control) Ltd logo

    ERG (Air Pollution Control) Ltd

    United Kingdom

    ERG (Air Pollution Control) Limited is the leading supplier of wastewater odour control units (OCUs) for the UK Water Industry and increasingly supplies odour control systems around the world. In addition, ERG can provide specialist advice and solutions to assist in achieving IED compliance for relevant odour assets. In the past 10 years, we have provided over 200 OCUs and count all the UK water companies and major main contractors among our clients. So, whether you are looking for a large, multi-stage chemical scrubbing system, an environmentally friendly bio-trickling filter or bio-scrubber system, a simple but efficient activated carbon or dry media system, an Odorgard™ from ERG Hygrade, or even an RTO (Regenerative Thermal Oxidiser) system, ERG can develop a tailor-made solution to suit. All ERG Odour Control Systems are: Purpose-designed by our process engineers to eliminate the cocktail of inlet odours to the required standard. Optimised to give the best value capital and running costs. Built and tested to current BS EN and WIMES specifications. Guaranteed to achieve the required discharge odour concentration and supported by our skilled and experienced maintenance team. Minimising non-compliant emissions to atmosphere by regular, planned maintenance protects your reputation and saves you money. Our maintenance department can help keep your air pollution and odour control systems running effectively and at the lowest operating costs. Our specialist engineers are experts in maintaining most types of odour and air pollution control equipment and always work to the highest safety standards. We often save clients many thousands of pounds by repairing and enhancing dilapidated air pollution and odour control equipment. We are a framework supplier for odour control maintenance to Southern Water, Scottish Water and Thames Water, regularly maintaining more than 120 sites.

    Treatment Works Products/Services
    Evergreen Water Solutions logo

    Evergreen Water Solutions

    United Kingdom

    A leading supplier of progressive wastewater treatment systems Evergreen Water Solutions works closely with a number of international engineering companies whose expertise are in scalable wastewater treatment systems and containerised wastewater treatment systems for municipal and industrial application. Evergreen Water Solutions offers a comprehensive engineering service. Our company incorporates initial design and planning, to implementation of projects that are delivered on time and on budget. Our expertise in wastewater treatment covers infrastructure development, package sewage treatment systems and advanced treatment technology for wastewater recycling with the strictest treatment requirements. The goal of Evergreen Water Solutions is to exceed the expectations of our clients, foster long-term relationships, and make a positive impact on the environment and industry standards. Evergreen Water Solutions use innovative products and suppliers to source, design and implement leading environmental water and wastewater treatment products and solutions. All new equipment and suppliers are required to undergo pre-qualification program and a series of acceptances and trials are applied prior to the approval of the vendor. Evergreen Water Solutions’ pre-qualification program guarantees you our clients that the products we source are of the highest standard within the industry, these products along with the expertise within Evergreen Water Solutions ensures that the solution we provide will meet and exceed any expectation you might have.

    Treatment Works Products/Services
    Contractors
    FLI Precast Solutions logo

    FLI Precast Solutions

    United Kingdom

    FLI Precast Solutions (formerly FLI Carlow) provide design, engineering and manufacturing services for the off-site manufacture of specialist concrete infrastructure and attenuation systems. Our markets include Water, Wastewater, Energy and Storm Attenuation in the UK & Ireland and bespoke projects globally. SERVICES INCLUDE Design, engineering and manufacturing services for the off-site manufacture of specialist concrete infrastructure and attenuation systems. Design to national and international water industry standards and our semi-precast modular designs make us the industry leader in off-site concrete engineering and manufacture. By early involvement and integrating with our clients’ design teams we can accelerate and improve design optimisation and reduce cost. The value is in the solution, and off-site manufacturing and fabrication leads to higher efficiencies and lower risks and costs. Framework agreements enable us to add more value through collaboration, innovation, economies of scale, supply chain partnering and cost management. Our products and designs are engineered to provide solutions to many challenges facing our clients: water retention, water storage, water conveyancing, water management, water treatment, fire-resistance criteria, chemical resistance parameters, infrastructural products, retaining walls, coastal erosion, decorative walls, to name a few. We are a solutions provider using innovative off-site concrete engineering and our industry leading semi-precast modular designs. The company is part of the FLI Group which is a diversified group of companies providing environmental solutions, services and technologies to private and public sector customers in the UK, France, Ireland and throughout the world. PRODUCTS INCLUDE Service reservoirs Process settlement tanks (PST / HST / FST / etc) Storm & attenuation tanks (network or site based) Process structures (ASP / TSR / GAC / RGF / etc) MCC service foundations Bund wall system Chambers Channel & lids Comms chambers Multi-purpose chambers Bespoke culverts Holding tanks Barriers Demountable fence supports (international airport approved) Ballast blocks Dry flow channelling Foundation bases Blast fence supports

    Precast Concrete
    Concrete Works
    Gearing Recruitment Solutions (GRS Ltd) logo

    Gearing Recruitment Solutions (GRS Ltd)

    United Kingdom

    Gearing Recruitment Solutions (GRS Ltd) is a leading technical recruitment agency with over 20 years of experience in the industry. Our team of experts specialises in providing white-collar permanent and freelance recruitment solutions for construction and water industries. We have supported large tier one M&E contractors through to local regional-based businesses in construction, ensuring that the companies we partner with share similar values and principles to us. This ensures that the candidates we place have the best opportunity to progress and develop in their careers. In the water industry, we have extensive experience in MEICA engineering for large industrial contracts and have recruited for top Tier 1 civils and infrastructure companies within construction, maintenance, and consultancy engineering. We have also partnered with large and regional MEICA contractors to provide recruitment solutions for AMP frameworks across the UK, including Thames Water, Southern Water, Severn Trent, United Utilities, and Scottish Water. Our recruitment services include positions such as: M&E Construction: Senior Appointments/Directors M&E Operations Manager Mechanical Project or Contracts Managers Electrical Project or Contracts Managers M&E Estimators, M&E Quantity Surveyors M&E Supervisors M&E Managers for main contractors Water: Directors Framework Managers Proposal Managers/Estimators, MEICA Managers MEICA Project Engineers Mechanical Supervisors Electrical Supervisors Quantity Surveyors Design Engineers/CAD Commissioning Engineers Process Engineers Health & Safety Sub Agents Civil Engineers At GRS, we pride ourselves on our honesty, true partnership, passion for our sector, and a continuous ambition to improve our technical knowledge. This allows us to perfectly position ourselves to cover all of your recruitment needs.

    Recruitment
    Headlight AI Limited logo

    Headlight AI Limited

    United Kingdom

    Headlight AI is a UK based technology company developing sensing, mapping, and inspection solutions for extreme environments. The company works primarily with Utility companies and contractors to provide condition assessment and geo-location data in subterranean locations, especially for large diameter assets (such as sewers, culverts, and tunnels with diameters >900mm), with a focus on autonomous or semi-autonomous systems that avoid the need for person-entry (in particular NC3 or NC4 confined space entry), improving workers’ health and safety. The company supplies its award winning product, Telesto, to utility companies and contractors in order for them to collect multi-sensor data, including LiDAR, on either robotic or floating platforms. The data is then processed to account for the motion of the system and to produce 3D point cloud and multi-image data for further analysis. Users can access the information via the web-based Telesto application, which provides condition assessment dashboards and statistics relevant to the asset, achieved using novel artificial intelligence (AI) models. The company currently has several other products and features in development to further assist with underground inspections and surveys, and provide new ways to navigate and locate in GPS-denied and extreme environments.

    Smart Water
    Asset Maintenance & Rehabilitation
    Intelect logo

    Intelect

    United Kingdom

    At Intelect, we have over 25 years experience in providing engineering expertise to clients in process industries. Intelect have worked with Northumbrian Water and its Tier 1 suppliers and partners for over a decade, and during this time, we have provided services in design, electrical installation, control panels and pipework services. Our attention to detail, quality, and attitude to Health and Safety has been consistently recognised by our clients over the years, with us receiving numerous awards for the projects we have completed. Our flexible workforce of apprentices, engineers and project managers allows us to efficiently complete any project to our client’s requirements. On-going innovation and investment in our business means that we have the latest training and technology to execute high quality engineering projects, from design through to commissioning, all whilst maintaining best practices in Health and Safety. Intelect are committed to working in partnership with both contractors and suppliers within the utility sector, sharing our expertise and knowledge to help support companies who provide utilities to homes and businesses across the North East and the rest of the country.

    Networks - Water Supply
    Contractors
    Lynwood Civil Engineering Ltd logo

    Lynwood Civil Engineering Ltd

    United Kingdom

    Lynwood Civil Engineering is a leading water utilities & civil engineering company established over 20 years. Our head office is based in Bristol, providing services across the South West, South Wales & the Thames Valley to support our diverse range of clients across water utilities, local authorities, commercial and domestic customers. We take great pride in being highly knowledgeable experts within our field, and continually invest in our people, processes, plant and vehicles so that we can provide the highest possible standard of service. Our focus on water utilities has seen us build a wastewater and potable business which provides a range of services in repair and maintenance, both reactive and planned works as well as delivering water infrastructure schemes with deep dig expertise. Company Ethos As an established family run organisation, we maintain our core family values between our people, clients, suppliers, and the communities around us. Our streamlined organisational structure, combined with the experience of our Company Directors and other long-standing employees, has enabled the company to grow into an agile organisation that manages client relationships across multiple frameworks, contracts & projects. Health & Safety Health and safety has always been at the forefront of how we run our business. Whilst it is an integral part of working in our industry, we take pride in ensuring that health & safety is embedded in our culture. Quality & Assurance We operate as a people first business by investing in our workforce to ensure our teams have the support and qualifications required to exceed our clients’ expectations. We offer extensive development opportunities that enable our employees to grow with our business.

    Networks - Water Supply
    Asset Maintenance & Rehabilitation

    Advanced Oxidation Process Design for Trace Contaminant Destruction

    Advanced oxidation processes (AOPs) generate hydroxyl radicals (·OH) with oxidation potential of 2.8 V — second only to fluorine — to mineralize pharmaceuticals, pesticides, 1,4-dioxane, NDMA, and other recalcitrant micropollutants. The dominant configurations are UV/H₂O₂ (peroxide 5–25 mg/L, UV dose 500–1,500 mJ/cm²), ozone/H₂O₂ (peroxide-to-ozone mass ratio 0.3–0.5), UV/chlorine, and catalytic ozonation. Each is selected on a contaminant-specific basis using bench-scale hydroxyl-radical exposure (Rct) testing on actual feedwater.

    Electrical energy per order (EE/O) is the universal AOP design metric: kWh required to reduce a target contaminant by one log (90%) per cubic meter. Typical EE/O values are 0.5–2 kWh/m³ for UV/H₂O₂ on 1,4-dioxane, 0.1–0.5 kWh/m³ for ozone/H₂O₂ on pharmaceuticals. Scavenging from bicarbonate alkalinity above 100 mg/L CaCO₃, dissolved organic matter, and chloride raises EE/O substantially. Feedwater pretreatment via softening, biological filtration, or low-pressure RO is often the first design lever before AOP sizing.

    Regulatory drivers include the EU Urban Wastewater Treatment Directive recast 2024 requiring micropollutant removal at large WWTPs by 2045, California Title 22 indirect potable reuse, and Singapore NEWater standards. AOPs are typically the polishing barrier between MF/UF + RO and the final blending point. Specify residual oxidant quench (sulfite or GAC) to protect downstream distribution and avoid bromate formation when treating high-bromide waters above 50 µg/L. Aguato lists AOP providers with proven pilot-to-full-scale references.

    Frequently Asked Questions

    Which AOP is best for removing 1,4-dioxane from groundwater?

    UV/H₂O₂ is the established choice for 1,4-dioxane because the contaminant absorbs UV poorly but reacts readily with hydroxyl radicals. Typical design uses 3–10 mg/L H₂O₂ dose, 800–1,500 mJ/cm² UV dose with low-pressure UV lamps, achieving 1–2 log removal at EE/O of 0.5–2 kWh/m³. Bicarbonate alkalinity is the dominant scavenger; pre-softening or low-pressure RO ahead of UV/H₂O₂ reduces operating cost dramatically.

    What is EE/O and why does it matter for AOP design?

    Electrical energy per order (EE/O), in kWh/m³, is the energy required to achieve one log (90%) reduction of a target contaminant. It is the universal AOP cost metric — lower EE/O means lower OPEX. For 1,4-dioxane, EE/O ranges from 0.3 kWh/m³ (low scavenging, optimal peroxide) to >3 kWh/m³ (high alkalinity, high TOC). Always demand pilot-derived, contaminant-specific EE/O before procurement.

    When should I choose ozone/H₂O₂ over UV/H₂O₂?

    Ozone/H₂O₂ (peroxone) is preferred for high-flow potable reuse where capital cost favors ozone contactors over UV reactors, for waters with high UV-blocking (color, iron), or for combined taste-and-odor and micropollutant duty. UV/H₂O₂ is preferred for groundwater with low UV-blocking, for NDMA destruction (UV directly photolyzes NDMA), and where bromate formation must be avoided in high-bromide source water.

    Do AOPs produce harmful disinfection byproducts?

    Yes - bromate (regulated at 10 micrograms/L under UK WS(WQ)R 2016 and EU DWD 2020) forms when ozonating waters with bromide above 50 micrograms/L. NDMA can form in UV/chlorine systems treating amine-containing waters. Aldehydes and assimilable organic carbon increase post-AOP, requiring biofiltration polishing. Pilot testing must quantify byproduct formation before full-scale design lock.

    Case Study·Indirect potable reuse scheme, groundwater replenishment, Thames Valley, UK
    Challenge

    A water company evaluating indirect potable reuse of highly treated effluent for aquifer replenishment needed to demonstrate removal of pharmaceutical micropollutants (carbamazepine, diclofenac, metformin) to below 100 ng/L and 1,4-dioxane to below 10 micrograms/L before allowing recharge to the chalk aquifer. Conventional secondary treatment alone achieved less than 20% removal of these compounds.

    Approach

    A pilot AOP train comprising ozone/H2O2 (O3:H2O2 ratio 0.4 by mass, ozone dose 8 mg/L) followed by biologically active carbon filtration was designed and tested at pilot scale over 12 months using actual site effluent. The BAC stage after ozonation removed assimilable organic carbon generated by partial oxidation and provided an additional polishing barrier for residual micropollutants.

    Outcome

    Pilot testing achieved greater than 99% removal of carbamazepine, diclofenac, and metformin to below 10 ng/L, and 1,4-dioxane reduction from 45 to below 2 micrograms/L. Bromate formation was controlled below 5 micrograms/L by pH depression to 6.8 ahead of ozonation, well within the 10 micrograms/L limit. Results supported the DWI risk assessment submission for the reuse scheme.

    Questions to Ask Shortlisted Providers

    1. 1

      What hydroxyl radical exposure (Rct) have you measured for our specific feedwater matrix, and how does scavenging from bicarbonate alkalinity and dissolved organic matter affect your EE/O calculations?

      Rct is feedwater-specific; using a generic value from a different water matrix will underestimate or overestimate the UV/H2O2 or ozone dose required for your target contaminant removal.

    2. 2

      Have you pilot-tested the proposed AOP on our actual feedwater, and can you provide EE/O data for our target compounds across the seasonal range of water quality we experience?

      EE/O must be measured on actual feedwater at representative seasonal conditions; laboratory data using spiked clean water dramatically underestimates real-world energy consumption.

    3. 3

      What byproducts do you predict at the proposed oxidant dose on our feedwater, and have you measured bromate, NDMA, and aldehyde formation in pilot tests?

      AOP byproduct formation is feedwater-specific and dose-dependent; without pilot-measured byproduct data, full-scale design cannot confirm regulatory compliance.

    4. 4

      What quench or polishing step follows the AOP stage, and how does it handle residual oxidant, assimilable organic carbon, and any treatment byproducts?

      Residual H2O2 or ozone damages downstream membranes if not quenched; AOC increase post-AOP requires BAC polishing to prevent regrowth in distribution.

    5. 5

      What operational flexibility does the system have to increase or decrease oxidant dose in response to variable inlet water quality, and what is the minimum and maximum dose range?

      Source water quality varies seasonally and with upstream discharges; the AOP system must be able to respond to these variations while remaining within byproduct formation limits.

    What Drives Cost in This Category

    Target contaminant and required log removal

    EE/O varies by more than an order of magnitude between easy-to-oxidise compounds and recalcitrant ones like 1,4-dioxane; the number of log removals required directly determines energy cost per cubic metre.

    Feedwater UV transmittance and scavenging

    Low UVT (below 80% at 254 nm) requires proportionally more UV energy to deliver the same effective UV dose at the target volume; high alkalinity scavenges hydroxyl radicals, requiring higher H2O2 dose and longer contact time.

    Ozone versus UV infrastructure

    Ozone generation requires on-site oxygen supply and ozone contactors (concrete or stainless steel vessels); UV systems require UV reactors and H2O2 dosing; capital cost profiles differ significantly, with ozone systems typically costing more at scales above 2,000 m3/day.

    Downstream BAC polishing requirements

    If biologically active carbon polishing is required to manage AOC and residual oxidant post-AOP, the contactor vessels, media, and backwash infrastructure add 20 to 40% to the capital cost of the AOP stage alone.

    Key Regulations & Standards

    Water Supply (Water Quality) Regulations 2016

    Sets the bromate parametric value of 10 micrograms/L that constrains ozone dose in UK drinking water treatment, and provides the framework for emerging micropollutant guideline values.

    DWI Regulation 31

    AOP processes using ozone, hydrogen peroxide, or UV above defined outputs require DWI prior approval before installation on a public water supply, including toxicological review of any new chemicals used.

    BS EN 14897

    Standard for UV treatment devices for drinking water, specifying performance testing, validation dose requirements, and installation guidance.

    UKWIR Guidelines on Wastewater Reuse for Potable Purposes

    Provides the UK framework for demonstrating sufficient pathogen and contaminant reduction for indirect potable reuse schemes, relevant to AOP systems treating advanced effluent for groundwater replenishment.