During the operation of the pure water production line, a certain amount of wastewater is generated as it requires the removal of impurities and water from the source. How should this discharged wastewater be handled? Can it be recycled and reused?

The pure water production line generates more than 4 times the wastewater during production. This is primarily due to the role of the RO membrane, which is to remove salt from the water. Salt accumulates on the membrane surface, requiring some purified water that has passed through a 5μm PP filter, a 1μm PP filter (granular activated carbon), and compressed activated carbon filters to rinse and carry away the salt on the membrane surface. In fact, the water drained is purified and much cleaner than the original water; however, the salt content is 20% higher than the original water. Therefore, the wastewater can be recycled.

In summary, the wastewater discharged from the pure water production line can be recycled for use. If the volume of wastewater is substantial, it can also be employed for watering or as drinking water. Therefore, even though the output from the pure water production line is wastewater, it remains cleaner than most natural bodies of water.