Recently, with the popularization of the concept of water resource recycling and technological advancement, wastewater treatment is no longer a simple matter of meeting discharge standards, but is developing in the direction of resource utilization. A number of water treatment equipment focusing on wastewater recycling has emerged on the market. Through advanced technologies such as membrane separation, ion exchange, and distillation, the originally discarded wastewater is transformed into a water source for industrial reuse or farmland irrigation.