The objective of this paper is to present the results of an ongoing applied research project by
Vivendi Water to develop a new method for measuring UV irradiance in flow-through UV
reactors using chemical actinometry. This method is intended to be used alone or in conjunction
with UV photocell sensors to improve the accuracy of irradiance measurements, reduce sensor-
to-sensor variability, and simplify calibration procedures for UV photocell sensors. The research
is being completed in three phases.
Phase I (Evaluation of alternative chemical actinometers) evaluates uridine
and potassium iodide actinometers to confirm literature findings and select the best-
performing actinometer for UV dose monitoring.
Phase II (Laboratory evaluation of flow-through and batch actinometer systems) evaluates batch and flow-through actinometer monitoring systems in a pilot-scale reactor,
and compares results with a calibrated UV radiometer detector.
Phase III (Full-scale evaluation of flow-through and batch actinometer systems) designs, fabricates and installs prototype batch and flow-through actinometer monitoring
systems on full-scale UV reactors and evaluates performance in a water treatment plant setting.
Phases I and II have been completed and Phase III is scheduled to be completed by December
2002. Phase I results were reported in a previous paper (Schulz 2001) and are summarized
herein. The focus of this paper is on the Phase II results.
Includes 10 references, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 540 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 20 |
| Published : | 11/01/2002 |
