| abstract |
The utility model is related to contained waste liquid processing systems, a kind of processing system of etching solution recycling ammonium chloride are disclosed, including neutralisation treatment section, filter pressing section, ion-exchange treatment section, evaporator section and post processing section.Using this and technical solution Treatment of Copper etching solution, the ammonia nitrogen in etching solution can be recycled, prevent ammonia nitrogen from influencing environment, avoid the wasting of resources. |