C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/02 (2006.01)
Patent
CA 2318710
A method and apparatus for treating sewage in cold regions including a pretreatment stage, an aerobic treatment stage, and a discharge stage, where cold outside air is combined with warm recirculating air from within the sewage treatment system to provide oxygen for the aerobic treatment of the sewage, with the treated sewage being discharged intermittently in high volume, high flow-rate batches to prevent freezing.
Fetherstonhaugh & Co.
Tsigonis Robert C.
LandOfFree
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