Injection control system of flocculating agent

Details Injection control system of flocculating agent Injection control system of flocculating agent

1987-04-10

1988-11-08

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210 85, 210 961, 210143, 358101, 358107, 364500, C02F 152

Patent

active

047832690

ABSTRACT:
An injection control system of a flocculating agent comprises: a flocculating pool into which the inflow liquid flocculating agent is injected and which forms flocs of suspended matters in the liquid; flocculating agent injecting means for injecting the flocculating agent into the flocculating pool; floc image pickup means for photographing a state of the flocs in the flocculating pool and for converting luminance data of the flocs into an electric signal; image recognizing means for recognizing the shape of floc by binarizing the image signal derived from the floc image pickup means on the basis of a luminance level of each pixel; flocculation state deciding means for calculating a characteristic amount of a diameter distribution of the flocs on the basis of the floc shapes recognized by the image recognizing means; and injection amount control means for controlling an amount of the flocculating agent which is injected from the flocculating agent injecting means on the basis of the characteristic amount.

REFERENCES:
patent: 4282093 (1981-08-01), Haga et al.
patent: 4654139 (1987-03-01), Baba et al.
patent: 4661845 (1987-04-01), Saito et al.

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