Chromaticity turbidimeter with sand filter vessel

摘要

Problem to be solved: to reduce the maintenance cost of the color measuring equipment installed in the water purification plant by saving the amount of the washing water in the backwash cleaning of the sand filter vessel.Solution: at least two sand filter vessels 2 are supplied with raw waterIn the sand filter vessel, the water quality and turbidity meter 3 supplied with the measured water filtered by raw waterWhile measuring water from a single sand filter tank to a chromaticity / turbidity meterIn the chrominance and turbidity meter 1 with the sand filter vessel for washing the other sand filter vessel with the purification waterA purification water supply valve sv1 for opening and closing a channel for supplying water to a sand filter tankSV2Having sv3 andProvided with a control section 4 for opening and closing the water purification valveControl sectionIf the turbidity measured by the chromaticity and turbidimeter exceeds the set valueThe purification water supply valve is opened.Diagram