Cooling Water Disinfection Formosa Employs Hanovia UV Water Disinfection at Nylon Factories in Taiwan

Editor: Dominik Stephan

Formosa has acquired several UV disinfection units for cooling water treatment at its nylon fibre plants in Taiwan from British based Hanovia. The use of UV technology brings huge benefits for the nylon production as company speakers explained.

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Hanovia’s UV technology is disinfecting cooling water in two of Formosa Chemical and Fibre Corporation’s factories in Taiwan. The UV systems are being used to reduce microbial contamination of cooling water used in the nylon manufacturing process.
Hanovia’s UV technology is disinfecting cooling water in two of Formosa Chemical and Fibre Corporation’s factories in Taiwan. The UV systems are being used to reduce microbial contamination of cooling water used in the nylon manufacturing process.
(Picture: Hanovia)

Zhanghua/Taiwan – Water treatment company Hanovia was able to sell its UV technology for cooling water disinfection to Formosa for the use in two nylon fibre factories in Taiwan. “The cooling water comes into direct contact with the nylon fibre product so the quality of the water is essential,” says Hanovia’s Asia-Pacific manager, Ying Xu. “Since the Hanovia UV systems’ installation the water quality has been consistently high, with UV transmittance up from 95% to 98%.“

The treatment with UV light has also other benefits as Ying explains: “While UV itself does not reduce suspended solids in water, it reduces other impurities, so UV transmittance has improved. For applications such as this, a transmittance value of 98% is essential, and UV is playing an important role in maintaining this,” she added.

The new UV units are installed after the heat exchangers, before the water enters the cooling tanks to prevent a contamination of the cooling system. Each of the UV installations can treat up to 50m3/hour. Currently, a total of four Hanovia UV units are being used in Taiwan: Three in the Zhanghua factory and one in the Xingang facility, with two more systems planned for installation in Xingang.

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