Accession Number:

ADA050153

Title:

Water Constituents Classification Study

Descriptive Note:

Final technical rept. 7 May-30 Dec 1977

Corporate Author:

MARYLAND UNIV COLLEGE PARK DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1978-01-15

Pagination or Media Count:

97.0

Abstract:

A survey of analytical methodology was carried out on a pooled sample of oily waste water. This was collected from U.S. Navy vessels. Oily waste water included oily salt water ballast plus bilge waste water. The results are summarized as follows. I. Microscopy examination showed oil droplets in the 2- 25 micrometers size range. Tiny particles about 1 micrometers in size were found adhering to the surface of the oil droplets. After filtration, microscopic examination of filtered particles showed a wide range of particle size to a maximum of about 100 micrometers. Scanning electron microscopy was used with x- ray spectroscopy of several individual particles. This indicated evidence for rust where Fe was dominant. Other particles showed Ca dominant, Fe and Si dominant, etc. II. Thin layer chromatography showed over 12 distinct fluorescent or UV absorbing spots. This provides a clear indication for the presence of aromatic compounds. III. Gas chromatography of filtered waste water, a CH2Cl2 extract and several oil standards showed that the pooled sample was closely matched to marine diesel fuel, although the presence of the fuel could not be ruled out. IV. High performance liquid chromatography showed evidence consistent with C5-C18 alkanes as well as aromatics dominating the C2- C5 region. These results were consistent with the presence of one or more marine diesel fuels, and inconsistent with either jet fuel or lubricating oil.

Subject Categories:

  • Organic Chemistry
  • Marine Engineering
  • Water Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE