A method and an apparatus for processing acidic seawater is disclosed, wherein the acidic seawater is firstly mixed with alkaline seawater, and neutralizing seawater after mixing is transferred into an aeration vessel to be aerated. The developer carrier carries the developer in such a manner that a thickness Tup of a layer of the developer when the layer passes through the developer restricting member and a gap Gd between the developer restricting member and the developer carrier satisfy an inequality 7<TupGd<20. The first slew rate can be substantially less than the second slew rate in order to prevent an electrostatic discharge pump from activating. The flexible connector extends through the first substantially straight portion and the coiled portion and penetrates through the wall of the second substantially straight portion.