Microcystins (MC) are strongly linked to liver tumors. The degradation dynamics and
characteristics of MC in an UV-microO<sub>3</sub> reactor with low concentration ozone generated from dry air
by UV-radiation are discussed. The results showed that the photochemical degradation
of MC was characterized by pseudo-first order reaction kinetics. The reaction half lives (t<sub>1/2</sub>) for MCRR,
MC-YR and MC-LR were 74.5 min, 32.2 min and 24.2 min respectively. The MC degradation
wasn't affected by original concentration of MC in the water; however, it was decelerated by natural organic matter (NOM) in
the water. In the UV-microO<sub>3</sub> process, the decrease in MC concentration was due to the destruction of
the conjugated double bond on the Adda side chain by hydroxyl radicals. The UV-microO<sub>3</sub> process can
be used for the decomposition of MC in potable water. Includes 10 references, table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 450 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 6 |
| Published : | 06/17/2005 |
