Industry Applications

>Industry Applications
Commercial

Municipal Industry Commercial UV-AOPs Craftsmanship Resource Recycling

Secondary water supply

Secondary water supply refers to a water supply method that uses water storage facilities (such as reservoirs and elevated water tanks) and pressure-boosting equipment (such as pumps) to store and pressurize water from the municipal network before delivering it to users in high-rise buildings where the municipal water network pressure is insufficient for direct water supply. As the final link in the urban water supply system, the water quality of secondary water supply is directly related to the drinking water health of residents.

上海二供5.jpg

Water Quality Risks in Secondary Water Supply Systems:

·Microbial Contamination Risk: Water remains in reservoirs or tanks for extended periods. If the tanks are not cleaned and disinfected promptly or are not properly sealed, they can easily lead to the growth of microorganisms such as bacteria, viruses, and algae, resulting in secondary water contamination.

·Residual Chlorine Decay: Municipal tap water typically contains a certain amount of residual chlorine to inhibit microbial growth in the pipe network. However, in secondary water supply systems, residual chlorine decays or even disappears completely due to factors such as storage, temperature fluctuations, and exposure to air, reducing its ability to inhibit microbial growth.

Ultraviolet Disinfection for Secondary Water Supply:

·Broad-Spectrum and Highly Effective

·Fast and Instantaneous

No Chemical Additives or Byproducts:

·Safe and Environmentally Friendly

·Easy to Operate

Process Flowchart:

二次供水--工艺流程图.png

For high-level domestic water tanks: The disinfector is usually installed on the tank's outlet pipe.

For low-level domestic water tanks with variable-frequency pumps: The disinfector should be installed on the pump's suction pipe.

二供2.jpg

How does the UV disinfection process work with residual chlorine to ensure water quality safety：

UV irradiation accelerates the decomposition of residual chlorine (both free and combined chlorine) in water. When the UV dose is below 40 mJ/cm², it has little effect on chlorine decay. However, when the dose exceeds 40 mJ/cm² (which is generally higher than the dose required for effective disinfection), it significantly accelerates chlorine decay. Therefore, during operation, the UV disinfection equipment for secondary water supply should be linked to the residual chlorine level. When the residual chlorine level is normal, the UV disinfection dose should be maintained at 16 mJ/cm² as a safety measure. When the residual chlorine level is low, the UV disinfection equipment should switch to disinfection mode and adjust the dose to 40 mJ/cm².

The customer value of intelligent and refined UV disinfection in secondary water supply pump rooms:

·Intelligent monitoring system: Integrated online sensors monitor key operating parameters in real time, including UV lamps, quartz tube contamination, water quality parameters (UVT254), residual chlorine concentration (if a combined process is used), and process flow rate, providing a basis for dose control.

·Intelligent control and early warning: automatic dosage adjustment to ensure a constant effective UV dose, intelligent cleaning control, fault early warning and diagnosis, lamp life management, and remote management platform.


Previous
No more.

Next
Pool & Aquarium

Related Products

EX-U UV Sterilizer

EX-U UV Sterilizer

The ONYX-EX-SUe series features a pipeline-type design with inlet and outlet flange connections, constructed from high-strength, corrosion-resistant 304/316L stainless steel. The control cabinet is integrated with the equipment housing, eliminating the need for a separate cabinet bracket. This makes installation easy and space-saving.

The ONYX-EX-SUe incorporates innovative technologies, including integrated design, food-grade processing, automatic mechanical cleaning, and CFD flow simulation, to reduce costs and significantly simplify operation and maintenance.

The ballast, operating indicator, timer, alarm, and intelligent control system are all integrated within the control cabinet. The system offers strong sterilization performance, long life, and stable operation. Its sterilization efficiency is ≥99.9%, and its lamp life is ≥12,000 hours.

 EX-L UV Sterilizer

EX-L UV Sterilizer

The ONYX-EX-L series features a pipeline-type design with inlet and outlet flange connections. Made of high-strength, corrosion-resistant 304/316L stainless steel, it boasts a fully enclosed and compact design.

The ONYX-EX-L incorporates innovative technologies, including food-grade processing, automatic mechanical cleaning, and CFD flow simulation, to reduce costs and significantly simplify operation and maintenance.

The ballast, operating indicator, timer, alarm, and intelligent control system are all housed within the control box. The lamps offer strong sterilization capabilities, long life, and stable operation. Their sterilization efficiency is ≥99.9%, and their lamp life is ≥12,000 hours.

 OneUV UV Sterilizer

OneUV UV Sterilizer

The ONYX-ONEUV series features a hygienic design, quick-connect clamps, and is constructed from high-strength, corrosion-resistant 304/316L stainless steel. Internal and external surfaces are polished to a Ra < 0.4µm, and all seals in contact with liquids are food-grade.

The ONYX-ONEUV incorporates innovative technologies, including integrated design, food-grade processing, quick-connect clamps, and CFD flow simulation, to reduce costs and significantly simplify operation and maintenance.

 MOS Ceramic Plate CD Ozone Generator

MOS Ceramic Plate CD Ozone Generator

MOS-A air-cooled ozone generator adopts unique air-cooling technology and digital power control technology, which makes the ozone discharge chamber work at the best efficiency and ensures the output concentration and output of ozone.

安力斯环境

Address：北京市海淀区上地信息路11号彩虹大厦北楼一层东110室

Telephone：010-82890788

Email：services@onyxepi.com


Wechat


Consult

Copyright © 2025 北京安力斯环境科技股份有限公司 版权所有 京ICP备202123645号