The invention relates to the field of drinking
water safety guarantee, in particular to an electric
microfiltration device
system for synchronously removing
hardness and harmful
metal in drinking water. In the electric
microfiltration device
system for synchronously removing the
hardness and the harmful
metal in the drinking water, a feed liquid
pool is connected with a first pump body through a guide
pipe, the first pump body is connected with a
cathode chamber through a guide
pipe, the
cathode chamber is connected with a pressure gauge through a guide
pipe, the pressure gauge is connected with a second pump body through a guide pipe, and the second pump body is connected with an
anode chamber through a guide pipe; and the
anode chamber is connected with the third pump body through a conduit. According to the invention,
calcium carbonate is precipitated by using the strong alkaline
atmosphere in the
cathode chamber, the
membrane surface and the membrane holes, harmful
metal ions generate co-
precipitation in the
precipitation process, and generated insoluble crystals are synchronously intercepted by the
microfiltration membrane. And the cathode
effluent flows through the
anode chamber to ensure that the overall
effluent is neutral and reaches the drinking water standard. When the
membrane flux is obviously reduced, the cathode and the anode can be reversed, and reverse
water flow is applied to the membrane
electrode, so the
membrane flux can be completely recovered.