Full Description

Conventional validation testing of ultraviolet (UV) reactors use cultured microorganismsspiked into test water flowing through a reactor. The objective of this study was to examinethe UV inactivation of indigenous aerobic spores naturally occurring in raw/unfilteredwater supplies and to assess their use as an alternative indicator for validation testing ofUV reactor performance. Spores were found in all raw waters tested in concentrationsranging between 20-12,000 CFU/100 ml and were very resistant to UV irradiation. Theinactivation of indigenous natural aerobic spores followed first order kinetics with aninactivation coefficient ranging between 0.013-0.022 cmsup2/sup/mJ. It was determined thatnaturally occurring aerobic spores can be a useful tool when validating plantperformance, and can be used as a regular monitor of UV fluence and performance in awater treatment plant. Includes table, figures.

Product Details

Edition: Vol. - No. Published: 06/17/2004 Number of Pages: 5File Size: 1 file , 300 KB