UV Disinfection

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What is UV Disinfection?

UV disinfection uses ultraviolet light to reduce microbial contamination in water systems. It is commonly used in purified water storage tanks, recirculation loops and distribution systems to help control bacterial growth.

Unlike UV oxidation, which focuses on reducing organic compounds, UV disinfection focuses mainly on microbial control.

What does UV Disinfection reduce?

UV disinfection helps reduce:

  • Bacteria
  • Microbial growth
  • Biofilm risk in circulating water
  • Microbial load in storage and distribution systems


UV does not physically remove microorganisms from water. Instead, it damages their DNA or cellular function, reducing their ability to reproduce. For this reason, UV is often combined with filtration and proper system sanitization.

How does UV Disinfection work?

Water flows through a chamber containing a UV lamp. As microorganisms pass close to the lamp, they are exposed to ultraviolet radiation. The exposure disrupts biological activity and reduces microbial viability. Performance depends on UV dose, lamp condition, flow rate, water clarity and chamber design. Regular lamp replacement and maintenance are important.

Why is UV Disinfection important?

Purified water can become contaminated during storage and distribution if system design is poor or water remains stagnant. Microbial growth can affect water quality and may interfere with sensitive laboratory applications.

UV disinfection helps maintain water quality in tanks and loops, especially when combined with recirculation, sanitary design and periodic sanitization.

Typical applications

UV disinfection is used in:
  • Purified water storage tanks
  • Centralized distribution loops
  • Recirculating Type II systems
  • Tank sanitization support
  • Microbial control in laboratory water systems

TKA Ultrapure Water Technologies India Pvt. Ltd.
Unit 311, Globe Business Park,
Kalyan – Badlapur Road, Laxmi Nagar, Ambarnath (W) 421501
Thane, Maharashtra, India
Phone: +91-9987174888 / +91-9867964888
Email: info@tkaindia.com

© 2026 TKA India | All Rights Reserved.

TKA Ultrapure Water Technologies India Pvt. Ltd. is an Indian company focused on the design, manufacture and support of laboratory water purification systems… Read More

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