Treatment of sanitary sewer systems

Details Treatment of sanitary sewer systems Treatment of sanitary sewer systems

1981-11-12

1983-08-09

Castel, Benoit

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210734, 137 13, 252 855R, C02F 154, F17D 117

Patent

active

043977480

ABSTRACT:
A method of reducing the fluid flow friction loss of fluid waste materials in the conduits of sanitary sewer systems while at the same time maintaining the solid materials in the fluid in a flowable condition by introducing into a sewer system about 1 to about 10,000 ppm of an aqueous solution of a partially hydrolyzed polyacrylamide polymer having a preselected average molecular weight and molecular weight distribution.

REFERENCES:
patent: 3480761 (1969-11-01), Kolodny et al.
patent: 3542044 (1970-11-01), Hansen et al.
patent: 3841402 (1974-10-01), Knight et al.
patent: 3968093 (1976-07-01), Hasegawa et al.
patent: 4236545 (1980-12-01), Knight et al.
Billmeyer Jr., F. W.; "Textbook of Polymer Science", 2nd Ed.; Wiley-Interscience, (1971), pp. 90-96.

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