A greater public awareness of contamination in water supplies has occurred in recent years which, in turn, has resulted in the successful application of alternative methods of treatment, like UV treatment.

Chemtronics offers complete UV systems for high technology industries such as Pharmaceutical, Chemical, Semiconductor, Soft Drinks, Water Authorities, Potable Water, Offshore Platforms.

At the other end of the spectrum, the low cost residential systems have been successfully solving individual water quality problems for many years.

Application:

The application of ozone and UV in the process water for a pharmaceutical company.

Advantages:
- UV does not alter taste, odour, colour or pH of the water
- UV does not require the addition of chemicals
- UV does not impart toxic by-products into the water
- UV systems are compact and easy to install
- UV systems require very little maintenance
- Running costs are often lower than those of a household lightbulb

When exposed to sunlight, germs are killed and bacteria and fungi are prevented from spreading. This natural disinfection process can be utilised most effectively by applying UV radiation in a controlled way.

Packaging materials can be efficiently and easily disinfected using UV-C radiation. Likewise, the shelf life of several foodstuffs is improved using UV radiation.

Surface disinfection makes most sense when the products have minimum resistance to microbic contamination.

The Blue Light disinfection module consists of a UV cassette and power supply unit, designed for easy installation and handling.

The lamps are protected against splash water by a sealed quartz glass window.

The reflectors inside the lamps guarantee uniform radiation of the surface.


 

Ultraviolet Dosage Required
For Destruction Of Organisms (uW-s/cm2)
Ultraviolet energy levels at 254 nanometer units wavelength Required for 99.9% destruction of various microorganisms UV energy in microwatt-seconds per square centimeter
Bacteria Mold Spore
Agrobacterium tumefaciens 8,500 Aspergillus flavus (yellowish green) 99,000
Bacillus anthracis 8,700 Aspergillus glaucus (bluish green) 88,000
Bacillus mrgaterium (vegetative) 2,500 Aspergillus niger (black) 330,000
Bacillus mrgaterium (spore) 52,000 Mucor ramosissimus (white gray) 35,200
Bacillus subtillis (vegetative) 11,000 Penicillum digitatum (olive) 88,000
Bacillus subtillis (spore) 58,000 Penicillum expensum (olive) 22,000
Clostridium tetani 22,000 Penicillum roqueforti (green) 26,400
Corynebacterium diptheriae 6,500 Rhizopus nigricans (black) 220,000
Echerichia coli 7,000 - -
Legionella bozimanii 3,500 - -
Legionella dumoffii 5,500 - -
Legionella gormanii 4,900 Algae
Legionella micdadel 3,100 Chlorella vulgaris (algae) 22,000
Legionella longbeachae 2,900 - -
Legionella pneumophila 3,800 - -
Legionella interrogans (infectious jaundice) 6,000 - -
Mycobacterium tuberculosis 10,000 Protozoa
Neisseria catarrhaiis 8,500 Nematode eggs 92,000
Proteus vulgaris 6,600 Paramecium 200,000
Pseudomonas aeruginosa (laboratory strain) 3,900 - -
Pseudomonas aeruginosa (environmental strain) 10,500 - -
Rhodospirilum rubrum 6,200 - -
Salmonella enteritidis 7,600 Virus
Salmonella paratyphi (Enteric fever) 6,100 Bacteriophage (E.coli) 6,600
Salmonella typhimurium 15,200 Hepatitis virus 8,000
Salmonella typhosa (Typhoid fever) 6,000 Influenza virus 6,600
Sarcina lutea 26,400 Poliovirus 21,000
Serratia marcescens 6,200 Rotavirus 24,000
Shigella dysenteriae (Dysentery) 4,200 Tobacco mosaic virus 440,000
Shigella flexneri (Dysentery) 3,400 Virus of Infectious Hepatitis 8,000
Shigella sonnei 7,000 - -
Staphylococcus epidermidis 5,800 - -
Staphylococcus aureus 7,000 Yeast
Streptococcus faecalis 10,000 Baker's yeast 8,800
Streptococcus hemolyticus 5,500 Brewer's yeast 6,600
Streptococcus lactis 8,800 Common yeast cake 13,200
Streptococcus viridans 3,800 Saccharomyces ellipsoideus 13,200
Vibrio cholerae 6,500 Saccharomyces sp. 17,600

 

 
 
 
 
 
 

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