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UV Disinfection  System

  • Water treatment ultraviolet germicidal lamp

    Water treatment ultraviolet germicidal lamp

    The working principle of water treatment ultraviolet germicidal lamp is that only artificial mercury (alloy) light source can output sufficient UVC intensity for engineering disinfection. The ultraviolet sterilization lamp is made of quartz glass. The mercury lamp is divided into low-pressure low-intensity mercury lamp, medium pressure high-intensity mercury lamp and low-pressure high-intensity mercury lamp according to the difference in the vapor pressure of mercury in the lamp and the output intensity of the ultraviolet lamp.

    The germicidal effect is determined by the irradiation dose received by microorganisms, and is also affected by the output energy of the ultraviolet lamp. It is related to the type, light intensity and service time of the lamp. With the aging of the lamp, it will lose 30% – 50% of the intensity. UV irradiation dose refers to the amount of UV lamp with specific wavelength required when a certain bacterial inactivation rate is reached: irradiation dose (J / m2) = irradiation time (s) × The greater the irradiation dose of UVC intensity (w / m2), the higher the disinfection efficiency. Due to the size requirements of the equipment, the general irradiation time is only a few seconds. Therefore, the UVC output intensity of the lamp has become the most important parameter to measure the performance of the UV disinfection equipment.

    EX Series tubular UV disinfection equipment: side in and top out, with automatic cleaning function, remote adjustment and monitoring;

    It is suitable for sterilization and disinfection of pressure pipeline or water after pump; The working pressure of the equipment is less than 0.8MPa, and the standard material of the cavity is 304. 316L can be used according to customer requirements; Transmittance ≥ 90%, UV dose ≥ 40mj / cm2; Water loss of single set: 200-400mm.

  • Ultraviolet disinfection of drinking water

    Ultraviolet disinfection of drinking water

    “Ultraviolet disinfection of drinking water” refers to a water treatment method that uses an UV mercury lamp as a light source, and the high-pressure mercury vapor in the ultraviolet lamp tube generates ultraviolet radiation with a predominant wave length of 253.7 nm when it is ionized by the applied pressure, so as to sterilize and disinfect drinking water.

  • Pipeline Ultraviolet Sterilizer

    Pipeline Ultraviolet Sterilizer

    Onyx ultraviolet sterilizer produces UVC irradiation water. When all kinds of bacteria, viruses, parasites, algae and other pathogens in water are exposed to a certain dose of UVC, the structure of DNA or RNA in their cells is destroyed, which makes them lose the ability of replication and reproduction. Because the life cycle of bacteria and viruses is generally very short, the bacteria and viruses that can not reproduce will die quickly, so the purpose of disinfection and purification without using any chemical drugs is achieved. On the strength of the special L-shaped structure and optimized diversion design of the cavity, combined with the automatic cleaning structure of full intelligent control, it can ensure the sterilization effect accurately for a long time, realize unattended operation and save energy consumption. In addition, a comprehensive product upgrade has been carried out in the field of secondary water supply.

  • Ultraviolet Disinfection of Food and Beverage

    Ultraviolet Disinfection of Food and Beverage

    In recent years, with the gradual enhancement of people’s safety awareness, the product quality requirements of food and beverage industry are more stringent. Microorganisms in water can affect the color, smell, taste and shelf life of bottled water, packaged drinking water and various beverages. Therefore, in the whole process of food and beverage processing, effective microbial disinfection is essential.

  • Characteristics and advantages of online dose monitoring system

    Characteristics and advantages of online dose monitoring system

    The on-line monitoring system needs to comprehensively analyze and process all kinds of monitoring information, which ensures the flexibility and expansibility of the system structure.
    (1) UV dose monitoring system runs stably and can transmit monitoring data wirelessly.
    (2) Continuous online collection of relevant data, analysis of data trends, and early warning of UV dose.
    (3) The UV system is adjusted automatically according to the monitoring data. The ultraviolet disinfection system can provide sufficient disinfection dose, and meanwhile energy saving and environmental protection can be achieved.

  • Monitoring of Ultraviolet Germicidal Efficacy

    Monitoring of Ultraviolet Germicidal Efficacy

    UV disinfection is affected by many factors, such as UVT, casing scaling, flow rate and so on.
    Ultraviolet penetration rate (UVT) refers to the ratio of UV intensity of 253.7nm UV after passing through 1cm cuvette water sample and its initial UV intensity. This has a great impact on the UV disinfection system. In water treatment, many UV absorbents will affect UVT, such as soluble and particulate humic acid and fulvic acid, other aromatic organic compounds (phenols, etc.), metal ions, negative ions (nitrate and sulfite, etc.). When UVT decreases, the intensity of the whole reactor will decrease, which will affect the effective bactericidal dose of the reactor.

  • Medium Pressure Ultraviolet Sterilizer

    Medium Pressure Ultraviolet Sterilizer

    The medium pressure ultraviolet sterilizers designed by Onyx include: ultraviolet reactor (ultraviolet lamp tube, quartz sleeve, reactor shell, etc.), ballast central control integrated cabinet, ultraviolet intensity monitoring system, automatic cleaning system, cleaning drive system, etc., which can be used for normal detoxification, monitoring and control. UV lamp, one core component of medium pressure UV sterilizer, is customized and produced by Heraeus, a leading international lamp manufacturer. Another core component, ballast, is a customized high matching electronic ballast made by NEDAP, the world’s largest high-power ballast brand.

  • Medium pressure ultraviolet sterilization knowledge

    Medium pressure ultraviolet sterilization knowledge

    UVC irradiating water is produced by a specially designed UV generator during UV disinfection. When all kinds of bacteria, viruses, parasites, algae and other pathogens in water are exposed to a certain dose of UVC, the structure of DNA or RNA in their cells is destroyed, which makes them lose the ability of replication and reproduction. Because the life cycle of bacteria and viruses is generally very short, the bacteria and viruses that cannot reproduce will die quickly, so the purpose of disinfection and purification without using any chemical drugs is achieved.

  • Actions to Ensure that the UV Sterilization Effect Meets the Requirement

    Actions to Ensure that the UV Sterilization Effect Meets the Requirement

    In recent years, UV disinfection technology is widely used in water treatment, especially in sewage treatment and disinfection in China. In addition, ultraviolet disinfection is also used for disinfection of municipal waterworks, oilfield reinjection water, reclaimed water, secondary water supply in residential areas, water for food and beverage industry, swimming pool water, etc. Compared with other disinfection methods, ultraviolet disinfection technology has the advantages of high disinfection efficiency, no by-products, small footprint, safety and reliability, and therefore has been widely used in water treatment disinfection. Especially, in drinking water treatment, it has good disinfection effect on cryptosporidium and giardia with chlorine resistance.

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