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water chlorination system Applications

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    Ultraviolet disinfection systems for the de-chlorination industry

    The purpose of de-chlorination is the removal of free chlorine and combined chlorine compounds from potable water, as supplied by municipal water supplies. Chlorine will oxidize the surface of thin film composite polyamide membranes, causing the membrane to lose its ability to repel or reject salts. As a result, the membranes used in Reverse Osmosis (RO) or Electro-deionisation (EDI) systems will exhibit shorter lifetimes when exposed to chlorine in the water they are treating and membrane manufacturers will usually specify an upper limit to ensure a suitable life of the membrane. As a result, it is usual to use a method of dechlorination upstream of the RO or EDI system.

    By atg UV Technology based in Wigan, UNITED KINGDOM.

  • Legionella Control with Chlorine Dioxide

    Chlorine Dioxide has been shown to be extremely effective in the control of legionella bacteria and the prevention of Legionnaires’ Disease and Feedwater’s patented Activ-ox® system is the easiest and safest way to treat drinking, domestic and cooling water with chlorine dioxide.

    By Feedwater Ltd based in Moreton, UNITED KINGDOM.

  • Water treatment for water distribution systems

    As a selective oxidizing agent, chlorine dioxide possesses several chemical advantages when compared to the traditional use of chlorine in wastewater treatment. Chlorine dioxide does not hydrolyze in water, and thus it retains its biocidal activity over a broader range of pH. It is also non reactive with ammonia and most nitrogen-containing compounds, and thus effective at lower dose levels than chlorine. It also eliminates phenols, simple cyanides and sulfides by oxidation. Likewise it is effective at odor control and will oxidize sulfides. Chlorine dioxide is also effective at oxidizing iron and manganese compounds.

    By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).

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    Early Warning Systems for Drinking water

    Drinking water supply and distribution systems around the world (a critical and interdependent component of a nation’s infrastructure) are vulnerable to both intentional and accidental contamination. Unusual water quality may serve as a warning of potential contamination. The available physico-chemical sensors utilize general water quality parameters, such as free chlorine, oxidation reduction potential (ORP), total organic carbon (TOC), turbidity, pH, dissolved oxygen, chloride, ammonia, nitrate to detect the contamination. Generally, one or more of these water quality parameters will change due to the injection of a contaminant. However, no single chemical sensor responds to all possible contaminants nor can they give any indication of the potential toxicity of complex mixtures.

    By microLAN B.V. based in Waalwijk, NETHERLANDS.

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    Ultraviolet disinfection systems for the drinking water inspectorate

    With atg UV systems treating in excess of 2500 m3/hr daily, Ultraviolet disinfection is no longer an ‘emerging` technology.  A number of Water Treatment Works across the world are now investing heavily in Ultraviolet technology as the threat of chlorine resistant parasites, such as Cryptosporidium and Giardia, continue to pose a serious risk to water companies and their customers. To this end, in the UK, the DWI have issued their guidelines for UV operation and system selection to the UK water industry.  A key feature of their guidance is UV system validation.  Validation refers to a series of 3rd party testing to ensure the performance of an Ultraviolet system design under a range of operating environments.

    By atg UV Technology based in Wigan, UNITED KINGDOM.

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    Ultraviolet disinfection systems for the water parks industry

    As water features, wave machines, flumes and splash pads raise the fun factor in swimming pools, traditional methods of disinfecting water, using chlorine, are causing problems for operators and customers alike. Higher water temperatures and increased turbulence in leisure pools requires increased dosages of chlorine, leading to pool users complaining of burning eyes, red or itchy skin and an over powering chlorine smell throughout the facility. In some extreme cases the fabric of the building has also been attacked through corrosive condensation.

    By atg UV Technology based in Wigan, UNITED KINGDOM.

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    MPP water purification systems for industrial waste and process water application

    Removal of total spectrum of non-polar and polar hydrocarbons proven in practice: MPPE removes toxic, non-polar, non biodegradable compounds, aromatics, poly aromatics, halogenated, chlorinated, PCBs, THT (TetraHydroTiophene), Dioxins, CS2 etc. Folowed by biotreatment removing polar biodegradable compounds. Optional: UF and/or activated carbon filtration and RO for reuse as process or boiler feed water.

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    Ultraviolet disinfection systems for the process water

    Water is often used as a product, or as part of the manufacturing process. In many industrial applications, processes are chemical (chlorine) intolerant, and UV is widely adopted. atg UV Technology engineers will be pleased to discuss solving disinfection problems with you. As well as a powerful disinfectant, UV is used to remove chlorine, chloramines, ozone, bromine, and a wide variety of contaminants from industrial process water. Within micro-electronics facilities for example, UV is used to remove Total Organic Carbon (TOC) from ultra pure rinse water.

    By atg UV Technology based in Wigan, UNITED KINGDOM.

  • Water quality monitoring systems for wastewater & effluents monitoring industry

    Instruments for monitoring the aeration-process, nitrification and de-nitrification; chlorination and de-chlorination; as well as the final discharge into the environment.

    By SWAN Analytische Instrumente AG based in Hinwil, SWITZERLAND.

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    Ultraviolet disinfection systems for the offshore potable drinking water

    atg UV Technology are the market leader for UV systems designed to treat potable drinking water for offshore crew water supplies. UV is now the disinfection technology of choice, providing a simple chemical free solution to protect against all known bacteria and harmful microorganisms, including chlorine resistant microorganisms such as Cryptosporidium and Giardia. Available as skid mounted, duty / standby solutions, atg UV Technology’s offshore UV drinking water packages are included as part of the on board water maker, typically installed following desalination by an RO package or Flash Evaporator.

    By atg UV Technology based in Wigan, UNITED KINGDOM.

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    Ultraviolet disinfection systems for the swimming pools industry

    Ultraviolet disinfection is now an established method of water treatment for Swimming Pools, Spas, Hydro Pools, Splash Pads and Water Features, and has become the preferred treatment choice for a number of leading international leisure brands. atg UV`s range of treatment systems are proven to improve the swimming pool environment by improving water quality, air quality and safety, leading to increased customer satisfaction. UV systems not only provide disinfection against the 17 known chlorine resistant micro-organisms, such as Cryptosporidium and Giardia, which have a thick outer membrane making them highly resistant to traditional Chlorine disinfection, UV also destroys chloramines. Chloramines are formed when free chlorine reacts with organics, such as sweat, body fats and urine, brought into the pool environment by bathers.

    By atg UV Technology based in Wigan, UNITED KINGDOM.

  • Ozone/UV systems for swimming pool water treatment

    Studies have proven that chlorine use has negative consequences due to the formation of byproducts, i.e. chlorinated organic compounds and chloramines. Irritation of eyes and mucous membranes, drying out the skin as well as “chlorine smell” are well known troubles. However, these byproducts also accelerate the corrosion in pool halls and significant risk is given by their toxicity (chloramines, combined chlorine) and/or carcinogenicity. Higher rate of asthma prevalence is one of the consequences. These are the reasons why the combined chlorine content - as a marker of chlorination byproducts presence - is to be monitored and why its limit values are specified by authorities. To meet the limits can be tedious and expensive because more water has to be changed and heated up. Chlorine disinfection is not sufficient to prevent infections caused by some waterborne pathogens as dangerous protozoan parasites Cryptosporidium parvum and Giardia lamblia.

    By LIFETECH based in Brno, CZECH REPUBLIC.

  • Water treatment for cooling towers

    Controlling and preventing the growth of microorganisms in a cooling tower is extremely important and required to keep the system running at optimal levels. The presence of microorganisms will cause the system to breakdown and decreases the efficiency of the heat transfer. Typically oxidizing biocides such as chlorine and bromine have been used to treat cooling water. Unfortunately these chemicals are highly reactive with other chemicals and microbiological species found in the water. Chlorine dioxide however is very non-reactive to other compounds found in the water and retains biocidal efficacy. Likewise it is also a superior chemical for removing the biofilm, which leads to the most predominant problems that all cooling towers face.

    By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).

  • Applications and Air Pollutants Removed in Municipal Water Treatment Plants

    Applications include: emergency chlorine scrubber systems for cylinder storage area. Removal of powdered carbon particulate emitted from storage silo vents during the loading operation. 

    By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

  • Ultraviolet disinfection system for aquaculture & pool & water park

    For UPVC UV sterilizer seriers for Aquaculture & swimming pool UV sterilizer system is the most reliable , effective and safe water disinfection method. The reasons are UV posses the fast reaction time, no chemical required and easy operation method compare with chlorination and other chemical disinfection method . The UV disinfection technology is growing dynamically and broadly used on water ,air and material surface throughout the world. Applications: *Industrial Wastewater and Reuse *Air condition Cooling water * water Re-circulation *Swimming pool & Spa & Recreation water… * Fish & Shrimp Hatcheries * Aquaculture sea water application Features: 1. Reactor chamber is made of UPVC SCH 80 corrosion-resistant material |2. Multi-lamp array for Optimum performance 3. Watertight design for wet environment. 4. High efficient electronic ballast to deliver precise input power to lamp. 5. High transmission of high-purity quartz for high UV lamp performance. 6. High performance UVC germicidal lamp, low use of space 7. Easy installation and maintenance operations 8. Single closed (One Open end) high transmission quartz tube, easy to remove.

    By Enfound Enterprise Co., Ltd. based in Taipei, TAIWAN.

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    Water treatment solutions for swimming pool water treatment

    Modern disinfection procedures improve swimming enjoyment. Our UV and ozone systems make swimming pool water hygienically pure. In addition to conventional disinfection with chlorine, unpleasant smells are also avoided, for example.

    By ProMinent Group - ProMinent GmbH based in Heidelberg, GERMANY.

  • Water treatment for legionella prevention and control

    Whether you find yourself in a hotel bath room, cruise ship cabin, hospital, office building, industrial plant, greenhouse, car wash facility or your own hot tub, the combination of certain temperature levels, stagnant water and the presence of biofilm in water systems is a potential recipe for disaster: an outbreak of Legionnaires’ disease. An outbreak of Legionnaires’ disease is often the result of negligence, having legal repercussions for responsible parties. Because of its chemical and biocidal characteristics, chlorine dioxide is ideal for maintaining good standards of water hygiene. Chlorine dioxide has consistently been demonstrating to be the best molecule for eradicating the causative organism of Legionnaires’ disease.

    By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).

  • Cyanide Treatment with Hydrogen Peroxide

    Cyanides are used in a number of chemical synthesis and metallurgical processes (as simple salts or cyanide complexes). As a class, cyanides are highly toxic and must be destroyed or removed from wastewaters prior to discharge. The most common method for treating free or simple cyanide is alkaline chlorination. However, chlorination of cyanide results in highly toxic intermediates (e.g., cyanogen chloride) and, if organic material is present, chlorinated VOC’s. These compounds, together with the residual chlorine, create additional environmental problems. Consequently, there is a growing need for alternative, non-chlorine methods for destroying cyanides. Peroxygen compounds such as hydrogen peroxide, peroxymonosulfuric acid (1), and persulfates (1) are effective alternatives to alkaline chlorination for destroying free and complexed cyanides. The choice of peroxygen system depends on the reaction time available, the desired products (cyanate, or CO2 and NH3), the types of cyanides being treated (free, weak acid dissociable, or inert), and the system economics. Treatment with Hydrogen Peroxide While hydrogen peroxide will oxidize free cyanide, it is common to catalyze the reaction with a transition metal such as soluble copper, vanadium, tungsten or silver in concentrations of 5 to 50 mg/L (2).

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

  • Water treatment for food processing

    Most food processing facilities currently use a combination of different chemicals for all surface and machine disinfection. They periodically rotate the use of different sanitizers to prevent the harmful microorganisms from building a resistance to their killing properties. Unfortunately facilities are still experiencing pathogen outbreaks. Chlorine dioxide’s unique killing ability does not allow for the build up of resistance or mutation, and therefore eliminates the need for all of the other chemicals. Chlorine dioxide is effective for use in controlling microbiological growth in flume waters and other food processing water systems such as chill water systems and hydrocoolers.

    By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).

  • Water treatment for breweries

    A brewery process presents one of the biggest challenges possible to a microbiological control program. Microorganisms are responsible for both the production and the degradation of the product. Microbial control is also critical for production and filling equipment. A brewing environment offers various applications where chlorine dioxide may be employed, like as terminal sanitizing rinse in the CIP systems or sanitizer for pasteurizers or filler head assemblies.

    By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).

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