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ERDLator

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ERDLator

The ERDLator was a field water treatment device developed during World War II[1] at the U.S. Army's United States Army Engineer Research and Development Laboratory at Ft. Belvoir, Virginia.

Photo of an ERDLator in profile.
Photo of an ERDLator in field operation by the 88th Supply and Service Battalion at Sui Doi, Vietnam, in 1969.

Technically named the "Water Purification Unit, Van-Type, Body Mounted, Electric Driven",[2] the acronym was incorporated into the name of the purification device itself, creating the name by which it was most widely known, ERDLator, pronounced "erd-a-later".

The device was introduced into the field as a van-type body-mounted mobile unit,[2] and proved vitally important to the operational effectiveness of deployed units under harsh field conditions, providing not only the water needed for survival, but clean potable water for staying healthy. This passage from a description of the United States Marine Corps Engineer Battalion illustrates the ERDLator's significance:

"One of the most important units was the water supply platoon. This platoon operated...water purification plants called Erdalators [sic] that could remove silt and suspended matter, filter, and purify even contaminated stream water. Producing from 1-3,000 gallons (about 4,000 to 12,000 liters) per day -- the larger number was achieved using separate large rubberized settling tanks -- one unit could adequately supply an infantry battalion under adverse conditions" [3]

The unit was replaced in the 1979[1] by the Reverse Osmosis Water Purification Unit (ROWPU) ("Row-pew"), also developed by a U.S. Army laboratory. Developing water purification systems for military use has led to technological breakthroughs which have benefited the civilian community; the ERDLator was evaluated for technology transfer to the civilian sector for the decontamination of water polluted with asbestos fibers.[4]

References

  1. ^ a b W. D. Burrows, Prakash M. Temkar, COL(Ret) K. K. Phull, MAJ T. C. Timmes, and T. E. Richards: "Force Health Protection and Military Drinking Water Supplies" in U.S. Army Medical Department Journal, January–March 2004, pp. 55-59, retrievable online at http://chppm-www.apgea.army.mil/dehe/pgm31/JAMEDD%20FHP%20and%20Mil.%20DW%20Supp.pdf (2009).
  2. ^ a b U.S. Army Technical Manual, TM-5-4610-223-12
  3. ^ Oscar E. 'Ed' Gilbert with Duncan Anderson, consulting editor, 2006, The U.S. Marine Corps in the Vietnam War, III Marine Amphibious Force 1965-75, Osprey Publishing Ltd., p. 36
  4. ^ Don C. Lindsten: "Technology transfer: Water purification, U.S. Army to the civilian community." The Journal of Technology Transfer, Vol. 9, No. 1 (September 1984), pp. 57-59


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