POLYELECTROLYTE COAGULANTS FOR USE IN THE LIQUID-SOLID PHASE SEPARATION OF HIGH-SOLIDS ACTIVATED SLUDGE.
Rept. for 15 Apr-15 Jul 65,
SCIENTIA RESEARCH LABS INC SEATTLE WASH
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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
- Life Support Systems