Treatment of waste oil-in-water emulsions from a copper metalworking industry by vacuum evaporation: effect of operating conditions
نویسندگان
چکیده
The efficiency of treatment of synthetic and semi-synthetic waste oil-in-water (O/W) emulsions by vacuum evaporation is evaluated. A previous destabilisation/centrifugation stage increases the quality of the final aqueous effluent. However, proper selection of a coagulant salt or flocculant is required. A comparison of laboratory-scale evaporation results and those obtained in an industrial evaporator shows a good agreement.
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