Patent ID: 8196596
Filing Date: 2012-06-12
Classification: C02F,G01N,Y10T

Abstract:
1. A method for reclaiming process water, comprising: draining a plurality of flows of drain water from a plurality of rinsing tanks to a buffer tank, wherein a water quality of at least one of the flows of drain water exceeds a predetermined water quality standard; recording liquid level variations of the rinsing tanks, and respectively drawing a plurality of liquid level variation curves; detecting a water quality concentration in the buffer tank, and drawing a water quality variation curve; respectively superposing each liquid level variation curve and the water quality variation curve within a same time interval; respectively calculating a peak overlap ratio of the water quality variation curve and the liquid level variation curve after each superposition in a range exceeding the predetermined water quality standard; determining the rinsing tank having a possible pollution source according to the peak overlap ratio of each flow of drain water; guiding the flow of drain water of the rinsing tank having the possible pollution source to a waste water tank; and guiding the flows of drain water of other rinsing tanks to a reclaiming tank.