Aluminum Can Manufacturers Wastewater Treatment
Figure A in Technical Bulletin #46 shows the schematic diagram for an aluminum can manufacturers wastewater treatment system. Their treatment added surfactants to wash oil off aluminum sheets. They used hydrofluoric acid to separate the oil from the surfactant.
Figure B shows how Biomin improved the process. Since the aluminum can manufacturer adds acid for etching the cans, adding more acid was not necessary… Biomin simply added a vessel of Organoclay followed by a vessel of activated carbon. The Organoclay removed the surfactant and oil and activated carbon functioned as a polisher, removes traces 1 PPM or less dissolved oil.
Surfactants used for this application should be non-ionic, like Union Carbide’s Triton 150 which provides pH 3-5 maximun breakage of the oil-surfactant binding. Organoclay has high capacity for oils and surfactant and activated carbon removes the traces. Anionic and cationic surfactants interfere with oil removal capacity. Laboratory studies with “Column Test Methods” have demonstrated these oil capacity changes.
A Biomin Column Treatment Tutorial is provided to show you how Biomin column data can be used to design a treatment system for a wastewater stream.
Biomin Organoclay Courses
George Alther, president of Biomin, provides practical courses on “Principles and Practices of Organoclay.” Courses are also provided in conjunction with the International Activated Carbon Conference in Los Angeles CA on April 27-28, 2010 and Pittsburgh PA October 5-6, 2010.
