Water impurity analysis method
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United States of America Patent
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Mar 31, 1998
Grant Date -
N/A
app pub date -
Apr 15, 1996
filing date -
Feb 10, 1995
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Abstract
To determine the total organic carbon content of a flowing liquid in a continuous process, water and oxidizing agents enter lower ports in a multi-stage column and flow upwardly through residence chambers as they are mixed. Spaced apart along the upper path of the liquid, there are helical reaction grooves relatively shallow and containing at least one helical groove to cause rapid motion of the liquid. An ultraviolet lamp extends downwardly through the center of the column so that the outer confining surface of the helical grooves is the outer surface of the ultraviolet lamp, causing the liquid to move rapidly in intimate contact with the ultraviolet lamp to receive intense radiation. The stages are separate and interchangeable so that selected sizes may interconnect. The residence chambers may have different sizes to permit different lengths of residence time and thus permit tailoring of the reaction to the expected organic carbon content and possible side reactions with other impurities in the water.
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