Alkali-decoloring-resistant ultrafiltration membrane system

The alkali-resistant decoloration ultrafiltration membrane system is characterized by comprising a pharmaceutical wastewater tank, a cleaning solution tank, a cleaning pump, a wastewater pump, a security filter, a membrane separation system, a dialysate tank and a concentrated solution tank, the pharmaceutical wastewater tank is connected with the security filter through a pipeline, a wastewater pump and a wastewater valve; the cleaning liquid tank is connected with a water inlet of the membrane separation system through a pipeline, a cleaning pump and a cleaning valve; the membrane separation system is provided with a dialysate outlet and a concentrated solution outlet; the dialysate outlet is connected with the dialysate tank; and the concentrated solution outlet is connected with the concentrated solution tank. The ultrafiltration membrane system disclosed by the utility model adopts the decolorizing membrane component to perform membrane filtration separation on pharmaceutical wastewater, and is good in t