In-plant real-time manufacturing water content characterisation

Research Area:
Eco-Intelligent Manufacturing


Water Resource Industry

SMART Authors:
Shahin Rahimifard , Patrick Webb

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To trial the concept of in-plant real-time manufacturing water content characterisation, a commercial optical system for measuring light absoprtion and backscatter intensity was used with samples of food industry wastewater, and the results compared with conventional laboratory based water analysis. It is shown that the instrumentation is capable of coping with the range of turbidities presented by the wastewater and that there is some correlation between the absoprtion and backscatter measurements with the conventional parameters COD and TSS. It is suggested that combining backscatter and absoprtion data may provide an optical fingerprint of effluent that can be used as a management parameter, for example to identify unexpected contamination events. Potential uses of the instrumentation are discussed, including to provide rapid feedback on effects of system changes of effluent production, and in a feedback control loop to allow reuse ot water without compromising product safety.

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