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Norman Helgeson


Click on the titles below to find US government-authored or -collected reports written by Norman Helgeson

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Venturi/Vortex Scrubber Technology for Controlling/Recycling Chromium Electroplating Emissions MAR 1999 76 pages
Authors:  K. J. Hay; Shaoying Qi; Bruce Holden; Norman Helgeson; Mark E. Fraser; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
The full text of this report is available for sale.Chromium electroplating is an essential DOD process. Chromium has a combination of qualities that are very difficult to substitute, however, the process itself is inefficient, resulting in the production of byproduct gases that rise and create a mist of chromic acid (strongly regulated as an air pollutant) above the plating tank. Venturi/Vortex Scrubber Technology (VVST) was designed to control chromium electroplating emissions by collecting the gas bubbles before they burst ...


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