| 摘要 |
<p>A method and apparatus for separating the membrane portion of waste egg shells from the hard mineral portion thereof, so that each can be used or further processed as described, thereby addressing the environmental and economic issues associated with disposing of waste egg shells. The membrane and shell are separated by first processing waste egg shells so as to yield small waste egg shell particles. During this processing, the waste egg shell particles are at least slightly abraded, whereby the linking structure between the membrane and shell is at least partially disrupted. Thereafter, the waste shell egg particles are conveyed to a tank (102) containing, preferably, water, and allowed to settle therethrough. As the waste egg shell particles settle, the particles experience turbulent forces in the liquid which cause the membrane and shell portions to fully separate.</p> |
