| 摘要 |
In an apparatus for treating unsafe water by exposure to ultraviolet radiation, a reactor vessel has a lower chamber provided with an inlet arranged to admit unsafe water flowing into the lower chamber, an upper chamber disposed above the lower chamber and provided with an outlet to discharge irradiated water from the upper chamber, a treatment surface disposed within the upper chamber and facing upwardly within the upper chamber, and one or more conduits arranged to conduct unsafe water flowing upwardly from the lower chamber over the treatment surface. In the apparatus, a medium-pressure mercury arc discharge lamp is disposed above the treatment surface and is arranged to irradiate unsafe water flowing over the treatment surface. A parabolic reflector disposed above the mercury arc discharge lamp is arranged to reflect ultraviolet radiation downwardly onto unsafe water flowing over the treatment surface. The mercury arch discharge lamp is linear and is disposed along the focus of the parabolic reflector.
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