| 摘要 |
Water which has been used for flushing solids from fish-cutting machines is treated to remove coarse solids and then for recovery of fish oil. After removal of coarse solids, e.g. by straining, removal of fine solids and recovery of fish oil may both be carried out by centrifuge, preferably in a single centrifuge of the type which allows simultaneous discharge of three different components, namely fine solids, oil-free water, and an oil-water emulsion which is then heated to break the emulsion in order to recover the fish oil. |
