Water utility laboratory personnel will find
needed recommendations and guidance on the
selection of filter membranes for dissolved
organic carbon (DOC) and ultraviolet absorbance at
254 nm (UV254) measurements. The results of a
national survey by the authors, published previously
in JOURNAL AWWA, indicated that filter selection,
filter cleaning, and sample filtration are specific
areas in which there are inconsistencies among practitioners.
This study was undertaken to provide some
guidance on these issues. If followed, the information
in this article should result in more uniform
practices in measuring DOC and UV254 by drinking
water practitioners.
Among 17 filters tested, two hydrophilic polyethersulfone
filters and one hydrophilic polypropylene filter
were the best alternatives for DOC and UV254 measurements.
Information in this article will provide significant
refinement to current practices used for measuring DOC
and UV254. The article also provides support to the
US Environmental Protection Agency for developing a
regulatory protocol for total organic carbon/specific
ultraviolet absorbance as a part of the Stage 2 Disinfectants/
Disinfection Byproducts Rule. Includes 29 references, tables, figures.
| Edition : | Vol. 95 - No. 3 |
| File Size : | 1
file
, 350 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 15 |
| Published : | 03/01/2003 |
