Accession Number:

AD0672818

Title:

POLYELECTROLYTE COAGULANTS FOR USE IN THE LIQUID-SOLID PHASE SEPARATION OF HIGH-SOLIDS ACTIVATED SLUDGE.

Descriptive Note:

Rept. for 15 Apr-15 Jul 65,

Corporate Author:

SCIENTIA RESEARCH LABS INC SEATTLE WASH

Personal Author(s):

• Chapman,D. D.
• Okey,R. W.
• Santler,F. T.

Report Date:

1968-04-01

Pagination or Media Count:

18.0

Abstract:

The use of the activated sludge process to treat wastes arising in a remote environment appears to be feasible if the process can be successfully miniaturized. A major problem in the development of equipment utilizing the process is the continuous separation of effluent of satisfactory quality. A method was devised for pre-treating the mixed liquor with polyelectrolyte coagulants to aid in phase separation. The effect of coagulants on the metabolism of algae was also evaluated. The polyelectrolyte C-32 produced by the Dow Chemical Company was found to enhance the filterability of high-solids activated sludge, and to produce an effluent of good quality for the growth of Chlorella pyrenoidosa 71105. Author

Descriptors:

• SEPARATION
• LIFE SUPPORT SYSTEMS
• HUMANS
• CHLORELLA
• GROWTH(PHYSIOLOGY)
• FEASIBILITY STUDIES
• ELECTROLYTES
• COAGULATION
• ALGAE
• METABOLISM

Subject Categories:

• Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE