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Industrial zero emissions

Zero Liquid Discharge (ZLD) has become a key option for China's future industrial green and low-carbon transformation.

ZLD aims to maximize the recycling of industrial wastewater through comprehensive water treatment technologies, minimizing or even eliminating final liquid waste.

Among the many technological pathways for achieving ZLD, advanced oxidation (UV-AOP) technology plays a crucial role.

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UV-AOP technology, due to its ability to generate highly oxidizing hydroxyl radicals (.OH), is particularly suitable for treating difficult-to-degrade, highly toxic organic wastewaters in the chemical industry, such as those from fine chemicals, pesticides, dyes, and pharmaceutical intermediates.

UV-AOP is often used as a deep treatment or pretreatment unit to improve the biodegradability of wastewater, reducing the burden and toxicity impact of subsequent biological treatment.

The electronics manufacturing industry places extremely high demands on process water purity, and ultrapure water (UPW) is an indispensable key material in its production.

UPW has extremely strict control standards (such as SEMI standards) for ions, organic matter (TOC), microorganisms, particulate matter, and dissolved gases.

The wastewater generated during the electronics manufacturing process is complex in composition, some of which is highly toxic. Achieving zero discharge of electronic wastewater places even higher demands on UV advanced oxidation technology.

Ozone Generator Applications

Ultraviolet Advanced Oxidation (UV-AOP) Applications

UV Disinfection Applications

ZLD Applications:

UV disinfection is often used as a final safeguard before water reuse or in specific treatment steps (such as as an auxiliary means of TOC removal or to prevent biofilm growth).

Ozone is primarily used for deep oxidation (degradation of COD and TOC), decolorization, deodorization, and biodegradability in wastewater. It is also used as a component in certain advanced oxidation processes (such as O₃/H₂O₂).

UV-AOP is a key technology for the decomposition of recalcitrant organic pollutants. It can degrade these stubborn pollutants, thereby improving the treatment efficiency of the entire ZLD system and ensuring effluent quality.


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