C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/4
C02F 3/30 (2006.01) C02F 3/06 (2006.01) C02F 3/10 (2006.01) C02F 3/28 (2006.01) C02F 3/34 (2006.01)
Patent
CA 1108318
ABSTRACT An improved process for biological purification of liquid wastes is provided. The improvement is obtained by utilizing anaerobic bacteria in the presence of extra-cellular enzymes produced by Gram-positive bacteria and separated from said Gram-positive bacteria and the intra-cellular enzymes contained therein. As compared to the current technique the anaerobic process according to the invention may produce only 0.2% of sludge, while the retention time may be only 25 % of the time currently used.
302816
El-Sayed Refaat M.
Fetherstonhaugh & Co.
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