The process of generating chlorine dioxide involves a series of meticulously controlled reactions, primarily between sodium chlorite (NaClO2) and hydrochloric acid (HCl 31-33%), within a specialized reaction chamber. Here's a breakdown of the key steps involved in chlorine dioxide generation:
- Sodium chlorite (NaClO2) and hydrochloric acid (HCl) 31-33% are typically stored separately in dedicated chemical feed tanks.
- These precursor chemicals are carefully pumped or metered into the reaction chamber in precisely controlled amounts, ensuring optimal reaction kinetics.
- Within the reaction chamber, the sodium chlorite and hydrochloric acid undergo a chemical reaction facilitated by controlled mixing.
- This reaction yields chlorine dioxide in a liquid solution, along with other reaction by-products.
- The reaction conditions, including temperature, pH, and mixing intensity, are closely monitored to ensure the efficiency and safety of the process.
- Following the generation of chlorine dioxide in the reaction chamber, the resulting liquid solution is subjected to a dissolution process.
- This step involves further mixing and agitation to facilitate the dissolution of chlorine dioxide gas into the liquid phase, resulting in a concentrated chlorine dioxide solution.
- The dissolved chlorine dioxide solution is then ready for injection into the water treatment process for disinfection purposes.
?? Advantages of On-Site Generation:
- Customization: On-site chlorine dioxide generation allows for precise control over dosage and application, optimizing disinfection performance for specific water quality and treatment objectives.
- Safety: By producing chlorine dioxide on-site, the need for transportation and storage of hazardous chemicals, such as chlorine gas, is minimized, reducing safety risks and potential environmental hazards.
- Cost-Effectiveness: On-site generation eliminates the need for purchasing and transporting pre-formed chlorine dioxide solutions, offering long-term cost savings and operational flexibility.
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