PTA (Purified Terephthalic Acid) mother liquor wastewater deep treatment and cobalt-manganese recovery system

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] like figure 1 As shown, a kind of PTA mother liquor wastewater advanced treatment and cobalt manganese recovery system according to the present invention, it comprises mother liquor filter, one-stage regulating tank, iron removal filter, two-stage regulating tank and cobalt-manganese filter, which are connected in sequence , a lye tank is arranged between the first-stage regulating tank and the second-stage regulating tank; a PTA mother liquor waste water storage tank is arranged at the front end of the mother liquor filter; a sewage treatment station is arranged at the rear end of the cobalt-manganese filter; A filter iron recovery device is arranged under the iron removal filter; a cobalt and manganese recovery device is arranged under the cobalt-manganese filter. The method adopts segmental treatment, and has good effects of removing solids, cobalt and manganese. Through the system, PA and PT acid can be recovered, a large amount of cobalt and manganese ions can be removed, the load of subsequent sewage treatment can be reduced, and the cost can be well saved. This system meets the actual use requirements.