CWC Ultraviolet Disinfection

Ultraviolet (UV) is a non-chemical process used to disinfect air and water. Ultraviolet is popular in industries where the addition of taste altering chemicals is problematic (a good example is the bottled water industry). CWC’s potable and process water UV lamps transmit UV-C light and are designed to produce 30 microwatt seconds per square centimetre of ultraviolet light.

How Ultraviolet Sterilisers Work

CWC’s range of PVC and stainless steel UV systems contain one or more germicidal ultraviolet lamps.

We use Philips low pressure mercury vapor tubes, producing ultraviolet wavelengths that are lethal to micro-organisms. Approximately 95% of the ultraviolet energy emitted is at the mercury resonance line of 254 nanometers, which is highly lethal to virus, bacteria and mold spores.

The water passing across a UV lamp is exposed to the UV light, de-activating the genetic material of micro-organisms in the water supply, preventing them from re-producing. Due to the short life-span of most micro-organisms, the water is considered sterile after passing through the UV chamber.

Applications

  • swimming pool & jacuzzi/spa
  • aquarium, hatcheries and nurseries
  • ice making
  • brewery & winery
  • soft drinks, fruit drinks and juices
  • bottled water
  • diary processing
  • edible oils
  • pure wash water
  • pharmaceutical production
  • laboratories, hospitals and clinics
  • maternity labor and delivery areas
  • pathology labs, kidney dialysis
  • cosmetics and electronic production
  • pond & lake reclamation

Specifications

CWC manufactures Ultraviolet sterilizers in both uPVC and Stainless Steel. Specifications on our standard systems are as follows:

Model Flow Capacity (l/m) Flow Capacity (m3/hr) Number of Lamps Lamp Type Power (Watts) In/Out Inches Dimensions (mm) Layout
015P 10 0.6 1 AUV15 15 3/4 470x150x260 1×1
030P 26 1.6 1 AUV30 30 3/4 930x150x260 1×1
055P 43 2.6 1 AUV55 55 1 930x150x260 1×1
075P 63 3.8 1 AUV75 75 1 1230x150x260 1×1
110P 88 5.3 2 AUV75 110 1 1/4 930x150x545 2×1
150P 126 7.6 2 AUV75 150 1 1/4 1230x150x570 2×1
225P 183 11 3 AUV75 225 1 1/4 1240x665x575 2×2
300P 250 15 4 AUV75 300 2 1240x685x600 2×2
450P 366 22 6 AUV75 450 2 1/2 1265x710x965 2×3
600P 500 30 8 AUV75 600 3 1295x710x1100 2×4
750P 633 38 10 AUV75 750 4 1335x735x1265 2×5
900P 750 45 12 AUV75 900 4 1335x735x1400 2×6

Flow capacities dependent on UV transmission of the water.
Flow capacities given at a UV dose of 30 mJ/cm2 and UV transmission, T10, of 80%

Your local approved CWC distributor can help you calculate your purified water needs, and can arrange for a professional water analysis to be taken. For more information about CWC’s Ultraviolet systems and how the RO process can help you in your home or business, contact CWC today.

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