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Relevant knowledge about secondary water supply disinfection equipment

2022-10-26

Relevant knowledge about secondary water supply disinfection equipment

　　I’m sure everyone also knows that, in fact, at municipal water treatment plants, water from wells and reservoirs is transported via pipelines to storage tanks located in residential communities, hotels, guesthouses, military bases, schools, and other facilities—where it’s then supplied again for user consumption. That’s exactly how it’s used. Secondary water supply disinfection equipment Let’s find out together below. Secondary water supply disinfection equipment!

　　Compared to raw water, it’s important to note that secondary water supply is more susceptible to contamination. This is because the original municipal water treatment plants, wells, and reservoirs have already undergone disinfection procedures. In particular, newly constructed reservoirs, if not properly protected by adequate sanitary measures—such as leaks—can quickly become breeding grounds for large numbers of bacteria and microorganisms. Therefore, it’s essential to disinfect the water before supplying it to users. As a result, secondary water disinfection equipment has become indispensable. Currently, secondary water disinfection equipment typically employs the chlorine dioxide disinfection principle to treat secondary water; these devices are also known as chlorine dioxide generators. Today, secondary water disinfection equipment is primarily used in water supply systems of various buildings and other backup water storage tanks. According to professional assessments conducted by health and epidemic prevention authorities, chlorine dioxide generators can achieve a kill rate of over 99% against viruses and bacteria in secondary water, especially targeting E. coli and algal microorganisms.

　　The secondary water disinfection equipment mainly consists of a microcomputer control system, feeding mechanism, reaction unit, automatic control system, vacuum adsorption device, heating system, and safety features. During operation, a sodium chlorate solution and hydrochloric acid are quantitatively fed into the reaction chamber via a feeding system under negative pressure conditions. Within the system, a mixed gas containing chlorine dioxide is generated through negative-pressure aeration and reaction. After being absorbed by the absorption system, this mixture forms a disinfectant solution of a specific concentration, which is then introduced into the water body for treatment. The secondary water disinfection equipment retains the advantages of the YS-CD and YS-CP series products. It employs a PLC controller and features touch-screen operation. Moreover, its process flow is dynamic, with vivid visuals and rich content—featuring 9 main images and nearly 30 supplementary images. A password-setting function enables supervisors to gain comprehensive insight into the equipment’s operational status and changes in various process parameters. The equipment’s output is displayed in real time and varies according to changes in equipment usage. The introduction of this secondary water disinfection equipment truly enables the recording and preservation of equipment operation fault detection data, allowing operators to promptly identify and troubleshoot any issues. The equipment offers multiple automatic control modes to choose from, including flow control, residual chlorine control, and combined flow and residual chlorine control.


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