Most systems are better equipped to remove large floating or suspended particles. Less space is needed. Because each of these has its own advantages and disadvantages, we often see equipment which incorporates the best of both systems. The perfor-mance of these units is governed by many factors and, as such, it is hard to generalize about the capabilities of mechanical separators. Following is an individual discussion of several systems available in Ontario.
Liquid manure flows onto an inclined screen.
The fluids run through the holes, leav-ing the solids trapped on the surface. As the solids ac-cumulate, they move downward due to fluid pressure and gravity forces. The solids fall off the end of the screen and are handled as solid manure. One of the problems with the screen is that a biological slime builds up and plugs the openings. Frequent brushing is needed to keep the holes unplugged.