C
CHEMISTRY; METALLURGY
C02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/00
Treatment of water, waste water, or sewage
C02F1/34
with mechanical oscillations
C02F1/36
ultrasonic vibrations