ENVIRONMENT-FRIENDLY REMOVAL METHOD OF FREE FATTY ACID CONTAINED IN WASTE EDIBLE OIL, CAPABLE OF EFFECTIVELY REMOVING THE FREE FATTY ACID WITHTOU A WASHING PROCESS

摘要

PURPOSE: An environment-friendly removal method of free fatty acid is provided to remove the necessity of a large-scale wastewater disposal plant, and to prevent the environmental pollution by waste water.;CONSTITUTION: An environment-friendly removal method of free fatty acid comprises the followings steps: mixing waste edible oil with a sodium hydroxide solution, for neutralizing the free fatty acid; firstly removing impurities from the mixture by settling or centrifuging remained sodium hydroxide, foots of neutralized free fatty acid, and other foreign materials; and adding an adsorber and stirring to remove remain impurities.;COPYRIGHT KIPO 2011