When the second plant of FIGP began production, the loading for wastewater treatment increased significantly. The plant addressed the issue by rerouting wastewater from the scrubber. Instead of discharging it for wastewater treatment, the wastewater is recycled, processed and reused. After going through oscillation, filtering and sedimentation, the wastewater is then reused by other equipment. By controlling the flow through globe valves, the water is mostly pumped back to the gravity separator to be used during flotation and for the crusher to conserve water. Monthly water conservation is estimated to be 2,000 kL, saving approximately NT$51,000.