| 摘要 |
A method of treating and progressively densifying liquid waste. It comprises thoroughly mixing and aerating by a continuous mixer and/or aerating raw water and chemical treating materials, discharging the resulting mixture downwardly into a reaction compartment, thence drawing the resulting material upwardly by means of an impeller and gravity flow, then allowing a portion of the resulting denser sludge to descend downwardly by gravity into a floc tunnel, thence in a horizontal portion, further densifying and separating takes place. The remaining portion is directed horizontally against inclined, closely spaced parallel plates to clear the resulting fines mixture. Thereafter, there is still further densifying of the sludge. By this method, a very dense sludge is obtained in a relatively small space.
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