Accession Number:

AD0706225

Title:

SEEDING OF BRACKISH WATER IN A SPRAY-FILM EVAPORATOR

Descriptive Note:

Progress rept.

Corporate Author:

ARMY MOBILITY EQUIPMENT RESEARCH AND DEVELOPMENT COMMAND FORT BELVOIR VA

Personal Author(s):

Report Date:

1970-01-01

Pagination or Media Count:

33.0

Abstract:

When operating on many brackish waters, sea water distillation equipment becomes inoperative in a short time because of heavy deposits of calcium sulfate scale. Investigations are being made to evaluate a calcium sulfate crystal-seeding method for prevention of this scale formation in evaporators. The report covers tests performed at the Office of Saline Water, Roswell Test Facility to investigate the use of crystal-seeding techniques to inhibit the formation of sulfate scale in a horizontal-tube, spray-film evaporator. These crystal-seeding techniques were evaluated on raw well water and well water with silica removed. A control test without crystal seeding was also conducted. The results of these tests indicate that on all waters tested, the crystal-seeding process can inhibit the formation of evaporator scale in a horizontal-tube, spray-film evaporator. Author

Subject Categories:

  • Industrial Chemistry and Chemical Processing

Distribution Statement:

APPROVED FOR PUBLIC RELEASE