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Re: Molybdenum in Hospital Wastewater
Moly has been used as a water treatemnt chemical in cooling towers, they
used to use chromium and have switched to molybdenum (P2?). I don't know
if there are other substitute that contain no heavy metals.
At 10:31 AM 3/26/97 -0500, you wrote:
>Our office is working with a community hospital to identify and source
>reduce molybdenum concentrations in a
>wastewater discharge. Molybdenum levels in the wastewater discharge have
>risen as high as 2000-3000 ug/l.
>Permitted discharge level (local limit) is 50 ug/l.
>Steps taken by the hospital have included a MSDS review of hosptial-wide
>chemicals as well as an analysis of
>incoming city water supply. The hospital reports no recent changes in
>or in raw materials used. Other steps taken may include further evaluation
>of chemicals used (through vendor
>analysis/certification)as well as working closely with wastewater testing
>lab(s) to confirm test
>results, validate proper QA/QC and identify possible interferences.
>We are looking for information or experiences concerning molybdenum
>potential sources in a hospital/medical care setting. In addition, any
>evidence or information concerning the
>mysterious generation or formation of molybdenum in wastewater is appreciated.
>The facility would like a response by May 1, 1997.
>Ohio EPA/Office of Pollution Prevention
>P.O. Box 1049
>Columbus, Ohio 43216-1049
>phone: (614) 644-2812 fax: (614) 728-1245
2626 Courtland Street
Duluth, MN 55806
Phone: 218.722.3336 x324