ONLINE MEASUREMENT METHOD FOR COLOURS AND ITS CONCENTRATIONS IN TEXTILE EFFLUENT WATER
The dark colours in industry effluent water are mostly caused by synthetic dyes and wood extracts. Spectrometers are used offline to measure the colour of effluent water. The properties and specifications of effluent water colour are all related to the wavelength of the light that is reflected by the water. To measure the colour concentration of effluent water, optical method is designed. The concentration of colours such as red, blue and green are measured using special photodiode. The focus of this paper is on the selection of sensor and its calibration with various colour concentrations. For experimental purpose, colour solutions of various concentrations have been prepared and their actual optical density is measured using spectrometer. Optical method is proposed in this work to monitor colour intensity in a continuous mode of operation. Based on the results obtained, the proposed sensor is accurately measured for various colour concentration
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