Use of spent bleaching earth from edible oil processing in the formulation of salt and mineral feed blocks or pellets for livestock

摘要

Spent bleaching earth from edible oil processing can be used in the formulation of salt and mineral lick blocks and pellets for livestock to enhance the health and nutritional value of the feed supplements. Because of the ignition hazard inherent with spent bleaching earth, landfill has been and continues to be the dominant disposal method. By adding salt or brine to the spent bleaching earth upon discharge from the process filters, the hydroscopic property will keep the material safe for handling and economic use as described.