Ultraviolet disinfection has been officially recognized as a recommended process for municipal water supply disinfection design in the "Outdoor Water Supply Design Standard" GB 50013-2018 Ultraviolet Disinfection Technical Specification.
In drinking water treatment, disinfection is the final and core process for ensuring the biological safety of drinking water. Ultraviolet disinfection technology has become a key means of ensuring water quality safety in water supply systems of all sizes, with applications ranging from large-scale municipal projects to community-level water supply installations.
Chlorine disinfection produces disinfection byproducts (DBPs), such as trihalomethanes (THMs) and haloacetic acids (HAAs). Some of these DBPs have been shown to pose carcinogenic, teratogenic, or mutagenic risks. Chlorine disinfection also has limited effectiveness against certain resistant microorganisms, such as Cryptosporidium and Giardia lamblia.
The most advanced drinking water disinfection process is a multi-barrier process: UV combined with chlorine/chloramine disinfection.
Combined UV and chlorine (or chloramine) disinfection is a widely used and mature multi-barrier disinfection process in municipal water supply. It leverages the characteristics of different disinfection technologies to form a synergistic application model, creating a dual-protection mechanism for microbial inactivation.
UV, as the first-level disinfection barrier, leverages its broad-spectrum bactericidal properties to effectively inactivate various pathogens in water, particularly chlorine-resistant microorganisms such as Cryptosporidium and Giardia lamblia, which are less resistant to chlorine disinfection.
Chlorine/chloramine acts as a secondary disinfection barrier, added after UV disinfection to provide sustained disinfection (residual chlorine or chloramine) within the pipe network. This inhibits secondary microbial growth during water distribution and ensures the biosafety of tap water. Research data shows that when UV is used as the core treatment process, the CT value (the product of concentration and contact time) required for subsequent chlorine disinfection can be significantly reduced.
Advanced Treatment of Municipal Water
Due to the impact of source water pollution and rising water quality standards, most municipal water plants are implementing advanced treatment processes for drinking water.
Ozone pre-oxidation process
UV高级氧化(UV-AOPs)
Improvement of drinking water quality through deep treatment
Efficiently remove organic matter, degrade TOC, UV25φ and other comprehensive indicators of organic matter in water
Remove odor from water and improve water quality, taste and other sensory indicators
Improve the biological stability of effluent
Control and degrade the precursors of disinfectant appendages
Remove new pollutants and other trace organic matter that affects human health
MOL板式臭氧发生器
The ONYX-MOL plate-type ozone generator features a modular design that allows for block-type assembly based on gas production capacity, resulting in a compact structure.
Utilizing high-purity aluminum-based ceramic electrodes and a highly resistant micro-arc oxidation process, the system delivers stable and reliable performance with an ultra-low attenuation rate. Uniform micro-gap high-frequency discharge delivers energy savings of 20-35%. The ozone concentration is adjustable from 0 to 240 mg/L, saving up to 40% oxygen.
The power-on auto-start design eliminates the need for manual intervention. It features self-diagnosis during operation, error handling, and intelligent recovery. Edge computing and cloud service coordination are integrated for operational status.
EX-U紫外消毒器
The ONYX-EX-U series features a pipeline-type design with inlet and outlet flange connections. Made of high-strength, corrosion-resistant 304/316L stainless steel, the ONYX-EX-U series boasts a fully enclosed and compact design.
The ONYX-EX-U 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, and alarm system are all integrated into the control box. The series boasts strong sterilization power, long life, and stable operation. Its sterilization efficiency is ≥99.9%, and its lamp life is ≥12,000 hours.
ZL大型管道式紫外
The ONYX-ZL-SY series features a pipeline-type design with inlet and outlet flange connections. Made of high-strength, corrosion-resistant 304/316L stainless steel, it is fully enclosed and compact.
Both the interior and exterior are electropolished, utilizing UV reflection from the reactor's inner wall to enhance UV intensity and ensure effective disinfection.
The ONYX-ZL-SY series incorporates innovative technologies, including automated mechanical cleaning and CFD flow simulation, to reduce costs and significantly simplify operation and maintenance.
CLEAR中压紫外
The ONYX-Clear-SY in-line medium-pressure UV sterilizer uses medium-pressure UV lamps for physical sterilization, without the addition of any chemicals or secondary pollution. It offers safe operation, ease of use, and reduced operating costs and maintenance.
The treated water does not affect taste or flavor. It complies with water standards such as the Food Safety Law of the People's Republic of China, the Sanitary Standard for Drinking Water (GB 5749), the Drinking Water Quality Standard (CJ94-2005), the National Food Safety Standard for Drinking Natural Mineral Water (GB 8537-2018), and the Packaged Drinking Water Standard (DGB19298-2014).
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