CPC Subgroup
C02F 11/14 with addition of chemical agents
Full Title
Treatment of sludge; Devices therefor > by de-watering, drying or thickening > with addition of chemical agents
3 direct subcodes
Child Classifications
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- C02F 11/143 using inorganic substances (C02F11/148 takes precedence)
- C02F 11/147 using organic substances (C02F11/148 takes precedence)
- C02F 11/148 Combined use of inorganic and organic substances, being added in the same treatment step