SUBCRITICAL AND SUPERCRITICAL FLUID EXTRACTION OF FAT AND DRYING RESIDUAL SOLIDS FOR PROTEIN/CARBOHYDRATE CONTENT FROM FOOD INDUSTRY LIQUID OR SOLID WASTE

摘要

Improved techniques for the treatment of wastewater from food processing operations, particularly from meat processing operations such as poultry, beef and pork are described. The invention focuses on not only on meeting the effluent compliance standards for wastewater, but also on the recovery of raw materials such as oils and proteins from the wastewater for revenue generating uses, such as biodiesel production and protein meat and poultry by-product materials. The use of subcritical and supercritical fluids to improve oil and protein recovery from wastewater is disclosed.