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Precautions for the Maintenance and Care of Open-Channel UV Disinfection Equipment

2021-07-06

Precautions for the Maintenance and Care of Open-Channel UV Disinfection Equipment

UV disinfection ensures both effective sterilization and water quality. It is a long-term, highly reliable sterilization technology that produces no byproducts and exhibits no microbial rebound, thereby guaranteeing complete disinfection efficacy and water safety. Compared with other sterilization methods, UV radiation offers numerous distinct advantages—particularly in contrast to chemical disinfectants. UV sterilizers do not introduce toxic substances or residual chemicals into purified water, nor do they alter its chemical composition, odor, or pH level. This feature is especially critical in the pharmaceutical industry and related sectors, where even slight changes in the chemical dosage of incoming water can significantly affect product characteristics.

　　1. It can effectively kill all bacteria and viruses, and inactivate chlorine-resistant microorganisms such as Legionella, Escherichia coli, Pseudomonas, and others—including Cryptosporidium, amoebae, and bacteria.

　　2. During the disinfection process, no toxic or harmful byproducts are generated; the composition and performance of the disinfectant water remain unchanged; and no secondary pollution is caused to the water body or the surrounding environment. By reducing the input of chlorine and minimizing residual chlorine levels, the swimming pool water contains less chlorine, thereby decreasing the formation of disinfection byproducts and making the swimming pool environment healthier.

　　3. It occupies a small aerial footprint, operates safely and reliably, is easy to maintain, and has low costs. As such, ultraviolet disinfection boasts advantages including high disinfection efficiency, broad-spectrum sterilization, zero pollution, safe and reliable operation, and no generation of toxic byproducts. Consequently, its application in engineering projects is becoming increasingly widespread.

　　4. Typically, it can complete the process within seconds. While destroying the DNA structure of microorganisms, it also breaks them down into small fragments. It is precisely because of this ultraviolet sterilization property that it can effectively prevent the reactivation and dark repair of microbial DNA. The microorganisms are inactivated with no possibility of revival and no rebound of bacterial populations.

　　The following points should be noted when maintaining and servicing open-channel UV disinfection units:

　　1. If the system is to be installed in a straight-line configuration, please use a low-inlet and high-outlet installation method to slow down the water flow and enhance the effectiveness of UV radiation.

　　2. During operation, do not look directly into the UV lamp with your eyes. If the device is left open, repeatedly turning it on and off will significantly shorten the lamp’s lifespan.

　　3. If the water flow is too fast, please install flow and pressure limiting devices.

　　4. If the turbidity of the raw water exceeds 5 degrees, a pre-filter should be installed to ensure effective UV disinfection.

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Ultraviolet Sterilizer Equipment: Features and Precautions