| 摘要 |
In a method for concentrating sludge a gas is bubbled into a liquid phase containing a foaming agent and an electrifying agent to form electrically charged bubbles, the bubbles are mixed with an incoming sludge to electrochemically adsorb the bubbles onto the solids in the sludge and the resulting mixture of the bubbles and sludge is introduced into a flotation zone where the solids electrochemically attached to the bubbles float to separate from the liquid phase. |
