Backflushing Filters for Field Processing of Water Samples Prior to Trace-Element Analyses
Water-Resources Investigations Report
76-126
By: V. C. Kennedy, E. A. Jenne, and J.M. Burchard
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Abstract
A portable unit is described for filtering water samples at field sites in such a manner that the filtrate is suitable for analysis not only of major constituents but also of trace elments at the mocrogram-per-liter level. A battery-operated peristaltic pump forces the water sample through medical-grade silicone tubing into and through an all-plastic in-line filter which can be backflushed when sediment clogs the filter membrane. Initial filtration rate exceeds 500 milliliter/minute and, because of the backflushing feature, a total time for filtering high-sediment-bearing waster samples is greatly reduced. (Woodard-USGS)
Suggested Citation
Kennedy, V.C., Jenne, E., Burchard, J., 1976, Backflushing Filters for Field Processing of Water Samples Prior to Trace-Element Analyses (WRI/OFR 76-126): U.S. Geological Survey Water-Resources Investigations Report 76-126, iii, 12 p., https://doi.org/10.3133/wri76126.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Backflushing Filters for Field Processing of Water Samples Prior to Trace-Element Analyses |
| Series title | Water-Resources Investigations Report |
| Series number | 76-126 |
| DOI | 10.3133/wri76126 |
| Edition | WRI/OFR 76-126 |
| Year Published | 1976 |
| Language | ENGLISH |
| Publisher | Geological Survey (U.S.) |
| Contributing office(s) | U.S. Geological Survey |
| Description | iii, 12 p. |