23-09-2015 дата публикации
Номер: CN104926066A
Принадлежит:
The invention discloses a method for simultaneously realizing heavy metal harmless treatment and deep dehydration for dehydrated sludge, and belongs to the technical field of sludge treatment and environmental protection. According to the method, sludge is subjected to deep dehydration when a sludge heavy metal harmless treatment process is performed. The method comprises the following steps: putting the sludge into a sludge cavity in a reaction device, and switching on the power; starting the reaction device, wherein the moving rates of electrodes selected under different loading voltages are confirmed according to the electro-osmosis property of the treated sludge, an anode is downwards moved at a uniform speed through the rotation of a threaded rod, the power output voltage is reduced, the constant voltage gradient between two electrodes are kept, and water removed by electro-osmosis is discharged through a bottom filter layer, and then flows into a water collection tank; after the reaction ...
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