Treatment Technologies

    Cooling Tower Water Treatment Companies

    Cooling water program providers, chemistry, side-stream filtration, Legionella control, and remote monitoring.

    11 providers

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    11 results from 11 matched providers

    Ecosystems International logo

    Ecosystems International

    Verified
    Indonesia51-200 employees
    83 technologies6 regions

    PT Ecosystems International (PT ESI) was established at Jakarta on 21st November 2006. We are an industrial effluent treatment systems integrator specializing in electrocoagulation (EC), a unique waste water treatment profile. PT ESI has capabilities in designing complete waste water treatment solutions by combining various effluent treatment systems such as the electro-coagulation, biological, chemical processes and membrane filtration, offering its customers a wide and comprehensive range of solutions, tailored to suit their various needs – ranging from basic effluent treatment for discharge to effluent recycling for water reuse. The Company is experienced in handling the design, engineering, procurement, construction and operation of new Effluent Treatment Plants (“ETP”) and possesses expertise in retrofitting existing ETP to increase the flow rate and treatment capability without any major infrastructure increase PT ESI is also a premier waste water treatment service company specializing in handling waste water generated from Exploration (Drilling) and Produced Water. Customers in Indonesia include major Oil & Gas companies such as Pertamina, Exxon, Chevron, Petro-China and Medco. Operations in Indonesia are provided by both mobile and fixed units. At drill sites where waste-water recycling is required, PT ESI supplement these treatment units with skid mounted mobile Reverse Osmosis systems. The technologies and solutions employed by PT ESI are developed in-house and examples of these are its proprietary Trident™ Electro Contaminant Removal (“ECR”) system, the Stage Contaminant Removal (“SCR”) process and Mobile On-Site Waste-Water Treatment (“OWT”) units

    Reverse Osmosis (RO) Systems
    Ultrafiltration (UF) Systems
    Multi-media Filtration (MMF) Systems
    Nanofiltration (NF) Systems
    +62 more
    Brine Consulting logo

    Brine Consulting

    Verified
    Netherlands1-50 employees
    133 technologies6 regions

    BRINE CONSULTING delivers senior-level strategy, technical design, and actionable insight across the full lifecycle of water-related challenges. We support clients with advisory and due diligence, advanced brine management and resource recovery, industrial and municipal water reuse, and MLD/ZLD systems. Our team also leads ESG and climate-resilience strategy, innovation scouting, and international development and PPP advisory. With deep specialization in desalination, brine valorization, circular economy models, and high-impact infrastructure, we help organizations turn water and waste streams into opportunities, providing clear thinking, rapid delivery, and solutions built for real-world results.

    Activated Carbon Filtration
    Reverse Osmosis (RO) Systems
    Ultrafiltration (UF) Systems
    Microfiltration (MF) Systems
    +84 more
    Gi Aqua , Water as a Service logo

    Gi Aqua , Water as a Service

    Verified
    Saudi Arabia51-200 employees
    6 technologies3 regions

    GI WAAS delivers cutting-edge water and wastewater solutions using advanced nanotechnology and zero total discharge solution sets industry standards. Our mission is to provide smart, sustainable, and decentralized treatment systems. We are committed to circular economy principles and reducing environmental impact. Our holistic approach provides comprehensive, tailor-made solutions that are designed to meet the specific needs of each client

    Water-as-a-Service (WaaS) Contracts
    Public-Private Partnerships (PPPs)
    Technology Leasing and Rental Solutions
    Operation of Water & Wastewater Treatment Plants
    +12 more
    Hangzhou Realize Technology Co., LTD. logo

    Hangzhou Realize Technology Co., LTD.

    Verified
    China1-50 employees
    6 technologies1 region

    HANGZHOU REALIZE TECHNOLOGY CO., LTD. is a technology enterprise. The company collaborates with domestic and international universities such as Beijing University of Technology, Tsinghua University, and Berlin University of Technology to address the challenges of enhancing anaerobic efficiency and nitrogen removal in high-ammonia nitrogen wastewater. The core technologies foucs on energy-saving denitrification and enhanced green methane production. These two technologies can increase production efficiency of green methane by 20% and reduce costs of wastewater denitrification by 60%.

    Process Water Treatment
    Wastewater Treatment
    Advanced Treatment Technologies
    Activated Sludge Process
    +7 more
    Sidonwater S.L. logo

    Sidonwater S.L.

    Verified
    Spain1-50 employees
    1 technologie5 regions
    8 published assets5 case studies3 datasheets

    Sidon Water is a water technology company specialised in non-chemical water treatment and system optimisation. We develop and deploy advanced solutions that prevent and remove limescale, reduce fouling and corrosion, and improve the performance of cooling towers, industrial water systems, and reverse osmosis and desalination installations. Sidon Water works with industrial clients, commercial building owners, OEMs and EPC partners to deliver measurable improvements in energy efficiency, operational reliability and asset lifetime. Our activities cover the full cycle from analysis and pilot projects to system integration, commissioning and long-term performance optimisation.

    Electrochemical Technologies
    Process Water Treatment
    Wastewater Treatment
    Advanced Treatment Technologies
    +3 more
    Hainan Litree Water Purification Technology Industry Co., Ltd. logo

    Hainan Litree Water Purification Technology Industry Co., Ltd.

    Verified
    China200+ employees
    20 technologies6 regions

    Litree: Pioneering Ultrafiltration for a Water-Secure World Founded in 1992, Litree has dedicated 30+ years to redefining water purification through ultrafiltration (UF) membrane technology—our core expertise and passion立升(Litree). As a global high-tech enterprise rooted in independent innovation, we’ve evolved from a membrane R&D startup to one of the world’s leading water problem solvers, with over 146 core patents and state-of-the-art manufacturing hubs in Haikou and Suzhou, China立升(Litree). Our signature hollow fiber UF membranes are engineered to deliver unmatched performance: 0.01μm precision removes 99.99% of bacteria, viruses, and contaminants while preserving essential minerals—striking the perfect balance between purity and health立升(Litree). This technology powers our diverse solutions, from residential whole-house systems to large-scale municipal projects and industrial wastewater treatment, all designed for sustainability and cost-efficiency. What truly sets us apart is our commitment to making safe water accessible. We’ve completed projects serving 50,000+ residents with centralized purification systems that cut construction costs and footprint by 50% compared to traditional setups—proof that advanced technology can also be affordable. Today, our solutions reach 60+ countries, supporting 3,000+ industrial clients and millions of households worldwide. At Litree, water isn’t just our business—it’s our mission. We believe every drop matters, and we’ll keep pushing boundaries to create a future where clean, safe water is a universal right, not a privilege

    Ultrafiltration (UF) Systems
    Membrane Filtration Technologies
    pH Adjustment and Neutralization
    Disinfection Chemicals
    +63 more
    Abalco® logo

    Abalco®

    Netherlands200+ employees
    5 technologies1 region

    Abalco® specializes in chemical and technical cleaning, renovation and conservation of heating, air-conditioning and cooling installations. Our specialists mainly focus on the technical management, preventive and corrective maintenance of installations. You can also contact us for water treatment and legionella management of evaporative condensers and cooling towers. Our SR-CT water treatment method based on electrolysis

    Advantage Controls, LLC logo

    Advantage Controls, LLC

    United States51-200 employees
    3 technologies1 region

    Cooling Tower, Boiler, Chiller, Reverse Osmosis, Wastewater quality control equipment, chemical metering pumps, filtration, valves, probes

    Reverse Osmosis (RO)
    Online/Real-Time Monitoring
    AQ Group logo

    AQ Group

    Netherlands
    5 technologies1 region

    We take care of cooling towers: water treatment (also chemical free), cleaning, maintenance and legionella control. We also do legionella risk control of drinking water systems and subsequent technical adjustments. Furthermore we are specialized in the delivery and maintenance of water softeners, reversed osmosis, demiwater and humidification installations.

    Concrete Repairs Ltd logo

    Concrete Repairs Ltd

    United Kingdom

    Concrete Repairs Limited (CRL) is a specialist asset maintenance contractor who is here to help you with the inspection, repair & refurbishment of your concrete water assets. CRL provide comprehensive repair and refurbishment services tailored to the needs of the water and wastewater sector throughout the UK. These include the inspection, repair, refurbishment and upgrading of service reservoirs, contact tanks, water towers & wastewater treatment plants. With over 65 years of experience, CRL understands the importance of maintaining water quality and supply to customers. Therefore, when planning repairs, we prioritise effective programming of the work and optimal utilization of the assets being repaired. Our choice of repair methodologies and materials always reflects this commitment. At CRL, we pride ourselves on being a reliable partner to the water companies. We collaborate closely with them to identify problems early, quantify the necessary repairs, and establish a timeline for refurbishment. Throughout this process, we focus on ensuring the longevity and optimal performance of the assets. CRL provide proven and successful cost-effective repair and refurbishment options which meet our clients’ objectives of upgrading and increasing the life of their structures. CRL is capable of undertaking individual projects of up to £20M, either under competitive tender, or through Partnering/Framework arrangements. Our broad experience across various sectors ensures we deliver efficient, robust, and technically advanced services.

    Hewitech UK Ltd logo

    Hewitech UK Ltd

    United Kingdom

    Hewitech UK Ltd operate in the Stormwater, Wastewater and Cooling Towers markets in the UK Hewitech  design, manufacture and supply a comprehensive range of products for use in the wastewater, stormwater retention and infiltration, and cooling tower industries. Our structured media filters for biological wastewater treatment applications are suitable for both municipal and industrial waste and potable water, with our products being used for: BOD treatment and nitrification in trickling filters (NTF) Submerged aerated filters (SAF) Biologically activated fixed film filters (BAFF) Primary sedimentation through lamella, in new and existing applications. Hewitech’s SuDS systems for stormwater retention and infiltration are the strongest available in the stormwater market, proven by rigorously testing for long term performance. While our comprehensive range of plastic media fill, air louvres and drift eliminators have the high module strength, thermal efficiency, and excellent material temperature performance to meet all cooling tower applications. Our product range includes: HewiFILL HewiPIER HewiTUBE Variobox Hewitech work closely with consultants, designers, architects and engineers to ensure smooth design and install on all projects.

    Legionella Control, Scale Management, and Efficiency in Cooling Tower Systems

    Cooling towers are the highest-risk component in building water systems from a Legionella pneumophila standpoint. Warm water (25–45°C), aerosolization of drift, and nutrient-rich biofilms in inadequately treated towers create conditions where Legionella can multiply to infectious concentrations in days. Effective control requires a multi-barrier approach: maintaining measurable disinfectant residual (typically 1–3 mg/L free chlorine or equivalent biocide), controlling drift with high-efficiency eliminators rated to below 0.0005% drift rate, and conducting regular mechanical cleaning and basin sedimentation removal. Hyperchlorination shock treatment is used as a corrective action when culture results exceed regulatory action thresholds.

    Scaling and corrosion management in cooling towers runs concurrently with Legionella control but requires separate chemical programs. Blowdown controlled by cycles of concentration keeps dissolved mineral concentrations below scaling thresholds; the target COC is set by LSI calculations for your makeup water. Corrosion inhibitors protect the tower fill, basin, and heat exchanger circuits simultaneously. Biodispersants are increasingly specified alongside biocides because biofilm—not just planktonic bacteria—is the primary reservoir for Legionella and the primary cause of underdeposit corrosion.

    When procuring cooling tower water treatment services, evaluate the provider's Legionella sampling and reporting protocol as carefully as their chemical program. Providers should be able to deliver culture results within 7–10 days of sampling, have documented escalation procedures for positive results above action levels, and carry adequate liability insurance. Confirm they will prepare and update the ASHRAE 188 Water Management Plan documentation and support any regulatory inspections.

    Frequently Asked Questions

    How do I know if my cooling tower has a Legionella risk?

    All cooling towers that recirculate warm water and produce aerosol carry some Legionella risk. Risk is elevated when water temperatures are consistently in the 25–45°C range, when the tower has low-flow or stagnant zones, when biofilm is visible in the basin or fill, or when the disinfectant residual is inconsistently maintained. ASHRAE 188 provides a formal Hazard Analysis and Critical Control Point (HACCP)-based framework for assessing and documenting your specific risk profile—any qualified treatment provider should be able to conduct this assessment.

    What biocides are most effective for cooling tower Legionella control?

    Oxidizing biocides—chlorine (sodium hypochlorite), bromine (BCDMH), and chlorine dioxide—are the primary Legionella control agents and must be maintained at measurable residuals continuously, not just during shock dosing. Non-oxidizing biocides (isothiazolones, quaternary ammonium compounds) are rotated in to prevent resistance and to penetrate biofilm where oxidizers alone have limited efficacy. An alternating or combined oxidizer/non-oxidizer program with documented residual monitoring is more defensible from a regulatory standpoint than either biocide class used alone.

    What cycles of concentration should I run my cooling tower at?

    Optimal COC balances water savings against scaling and corrosion risk. Most municipal makeup water sources support COC targets of 4–6 cycles, reducing water consumption by 20–25% compared to running at 3 cycles. Higher COC is possible with softer or treated makeup water and appropriate antiscalant programs. Your provider should calculate the maximum allowable COC based on LSI and Ryznar Stability Index analysis of your makeup water, then design a blowdown control program—ideally automated by conductivity meter—to maintain that target.

    What documentation should my cooling tower treatment provider supply?

    At minimum, expect monthly service reports with trend data for pH, conductivity, biocide residual, inhibitor residual, and make-up/blowdown volumes. Quarterly Legionella culture results should be provided with laboratory chain of custody documentation. The provider should also maintain and annually update your ASHRAE 188 Water Management Plan, system flow diagrams, and corrective action log. Facilities in jurisdictions with cooling tower registration ordinances (New York City, others) will need permit documentation that your provider should help prepare.

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