The ADOX chlorine dioxide generator by International Dioxcide. Built with more than 65 years of chlorine dioxide technology and the International Dioxide experience you can trust. The ADOX generator features advanced vacuum technology for maximized safety. The unit is easy to operate and has a highly-efficient simple design. Plus, it’s made with proven ADOX reliability. The HMI control panel on the ADOX generator allows the operator to turn the system on and off, input operating settings and dosage settings, by means of the touch pad. The water valve opens, the booster pump is turned on, and water starts flowing into the system through the motive water inlet.
Motive water flows through the eductor creating a vacuum. Once water flow is established, vacuum is created and the process interlocks are automatically confirmed for proper functionality. Once the process interlocks are confirmed, the chemical solenoids are then energized and chemical precursors start safely flowing into the generator reaction zone at the desired amounts inputted in the HMI control panel. The sodium chloride precursors are provided by International Dioxcide.
The chemicals immediately react together with the motive water. Because the reaction is done in the motive water that drives the eductor, the concentration of chlorine dioxide in the water is designed not to exceed 3,000 parts per million at any time. The operator receives confirmation of optimal chlorine dioxide operation through the chlorine dioxide analyzer, pH monitor, and/or the unit’s sight glass. The chlorine dioxide solution exits the generator and is fed to the application point. Or, in some instances, a specially designed day tank. The reaction has the potential to yield 100% conversion and the ADOX generator unit’s efficient operation produces fewer unwanted byproducts of unre reacted chloride and chloride ions. The ADOX generator will also achieve greater than 95% efficiency of the theoretical yield potential.
The ADOX generator features advanced vacuum feed technology that has been engineered for maximum safety. The three keys to an inherently safe design? Robust process interlocks; confirmation of process conditions; and vacuum chemical delivery. All precursor chemicals are drawn to the generator under vacuum, creating a safer environment. In the absence of motive water flow, no vacuum is created and, therefore, no precursor chemical flow is possible. A water flow meter is incorporated in the process interlocks to confirm adequate motive water flow. Until confirmed, the chemical solenoids won’t open to actuate with fewer moving parts and a vacuum chemical delivery design. There is less opportunity for leaks and drips in the ADOX generator, which minimizes potential operator exposure. concerns. If leaks in the chemical lines did occur, air would be pulled in and bubbles would form in the chemical line and rotameter.
Additional operator feedback is provided by one of several indicators, including pH, sight glass and/or the chlorine dioxide analyzer equipment. On scheduled shutdown or alarm condition or emergency stop, the chlorine dioxide solution is purged from the system with water. The three chemical precursors react in the motive water. The concentration of chlorine dioxide in the water is controlled to not exceed 3,000 parts per million, which is a safe concentration within the solubility limits of chlorine dioxide gas in water. Sample valves are multi-turn valves to minimize accidental release.
Some vacuum or pump-based systems pre-react the precursor chemicals in a chamber prior to dilution in water. Creating very high concentrations of chlorine dioxide can exceed 100,000 parts per million. This has the potential to expose operators to high concentrations of chlorine dioxide while the system is being serviced. Pump-based systems have chemical lines that are all under positive pressure, creating a potential safety hazard. Pumped chemical systems have the potential to expose operators and the facility to hazardous conditions if a chemical precursor feed line breaks or a gasket fails while under pressure.
The fully-automated design sequence uses International Dioxcide’s 65 years of chlorine dioxide experience to minimize and simplify any operator interfaces. The user-friendly HMI interface simplifies critical operating tasks, such as setting up the desired treatment parameters, rotameters, or control valves ensure the chemical precursors are fed precisely to achieve the desired dosage entered into the HMI interface. All parts are selected by International Dioxcide to withstand chemical conditions typically associated with their use. Ease of use, low drain for freeze protection, three-way valve to manually purge all chemicals for maintenance purposes. All valves are labeled for open or closed position while in normal operation.
The unique design allows for easy capacity changes. The generator uses multiple union connections for easy access. The advanced vacuum design eliminates the need for chemical pumps and minimizes moving parts that require service. Pre reaction based systems form salt scale buildup in the pre reaction zone, which negatively impacts production and efficiency. This salt scale can form in a few hours, resulting in a loss of vacuum and frequent operator adjustments to maintain proper dosage. This will require frequent operator service using hazardous chemicals to remove the salt scale.
Every project includes a thorough survey, specification check, proposal, and design review. International Dioxcide provides customized automation and layout design to meet your specific needs. You’ll receive 3D-drawings and a detailed operation manual for each unit. Safety and operation training is provided by International Dioxcide’s application experts and/or partners of International Dioxcide to ensure maximize safety. The ADOX chlorine dioxide generator has undergone rigorous safety testing and conforms with a wide array of certifications and approvals. Contact your International Dioxcide dealer today to find out more about the ADOX chlorine dioxide generator.
