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Non-Contact type In-line water TDS measurement using spectral properties of salts

Year : 2021

Mentors : Ankur Dwivedi, Harsh Kapadia

Students involved : 18BIC014 - Devansh Rana, 18BCH061 - Simran Lulla

Water is one of the most essential components to the existence of life and has found vast applications at industrial and domestic levels. Being a universal solvent, water is highly prone to impurities, we find several salts dissolved in it which are permissible only within a certain limit. This creates the need for accurate measurement a must, which is currently carried out by the principle of conductivity. However, this requires the water stream in the pipe to be obstructed by a probe which isn’t very desirable as it introduces a change in the flow stream. By use of the suggested method, it’ll allow users to obtain salt content without damaging the flow stream as it measures from the exterior of the pipe. It can be a good fit for monitoring the presence of highly hazardous heavy elements in drinking water at the domestic level. It can find extensive usage in industries as well which requires constant monitoring of salt content in water like in boiler plants.