Spent metalworking fluid treatment system

Details Spent metalworking fluid treatment system Spent metalworking fluid treatment system

C - Chemistry, Metallurgy

02

F

C02F 9/08 (2006.01) B01D 37/03 (2006.01) C02F 1/40 (2006.01) C02F 1/42 (2006.01) C02F 1/52 (2006.01) C02F 1/72 (2006.01)

Patent

CA 2531169

A system and a process is provided for treating spent machining to separate waste oil and biochemical oxygen demand materials and chemical oxygen demand materials from the coolant to produce treated high quality soft water. The process comprises the steps of de-emulsifying emulsified oil in the coolant and separating the de- emulsified oil from the coolant to create substantially de-oiled coolant; mineralizing biochemical oxygen demand (BOD) materials and chemical oxygen demand (COD) materials in the substantially de-oiled coolant to create mineralized de-oiled coolant; and, separating the mineralized BOD materials and the COD materials from the mineralized de-oiled coolant to create treated water.

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