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Comparison of Trace Metals in the Intake and Discharge Water of Power Plants Using "Clean" Techniques

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Once-through, noncontact condenser cooling water at power plants is frequently discharged back to the fresh or saline water body used for its intake water. This study evaluated the potential effect that trace metals, collected using "clean" sampling and analytical techniques and discharged from a once-through, noncontact cooling water system from a power plant, have on receiving water bodies. A paired t-test was used to compare the intake and discharge concentrations of the metals. The metals analyzed were antimony, arsenic, barium, beryllium, boron, cadmium, chromium, copper, lead, mercury, nickel, selenium, silver, thallium, and zinc. "Clean" is a term applied to field and analytical procedures that are designed to reduce or eliminate ubiquitous metal contamination from samples collected for environmental monitoring. Study results indicate that there is no measurable difference between intake and discharge samples from a noncontact cooling water system, and, therefore, there is no net contribution of metals to receiving water bodies from this system.


Document Type: Research Article

DOI: http://dx.doi.org/10.2175/106143001X138642

Publication date: January 1, 2001

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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