Waste Vegetable Oils Refinery Machines import companies and waste vegetable oils refinery machines import trade opportunities Environment and Recycling

I need to know if there is any machine to use to process rejected raw oil used during processing of raw vegetable oil to make cooking oil .. I mean the wasted oil of the final line during processing is rejected and must be re processed to extract from It other materials ... is there any machine for this purpose ..I hope I have been understood