| 摘要 |
PURPOSE: To provide a treatment process for heavy metal containing waste water which can realize the simplification of treatment flow and space saving. CONSTITUTION: Water to be treated 16 is introduced into a treatment tank 14 in which an immersion type film module 27 is installed, and a liquid chelate is added therein and a heavy metal in the water to be treated 16 is reacted with the liquid chelate. The solid-liquid separation of water to be treated 16 in the tank containing a formed chelate compound is carried out by a film module 27, and film permeating water 18 permeated through a separating film of the film module 27 is taken outside the tank, while suspended substances like the chelate compound and others remain in the tank. |
