UV is electromagnetic radiation between ca (10) 100 - 400 nm.

UV-radiation of ca 240-290 nm provides efficient germicidal effects.

Principle of UV-disinfection is photochemical reaction of deoxyribonucleic acid DNA at maximum 260-265 nm (dimerization of pyrimidine molecules) that causes inactivation of microorganism replication and/or its killing.

In comparison with chemicals UV-disinfection does not usually produce any byproducts, does not effect organoleptic properties of treated water, and has no influence on environment.

In terms of effectiveness of disinfection, it is necessary to know the ultraviolet radiation intensity.

The dosage is the product of ultraviolet radiation intensity (given by the type of lamp used) and exposure time.

Ultraviolet dosage of high intensity and short exposure shows a markedly higher effectiveness than that of low intensity /long exposure.

Information & Contact:

Ing. Jaroslav Kopecky, CSc.
Jako, s.r.o.
Druzstevní 72
250 65 Líbeznice
tel: 00420 283 981 432
fax: 00420 283 980 127