For the volume of waste water ...
Published by Alberto Blanco, Employee at Science Applications International Corporation
For the volume of waste water measurement you can install a flow meter (http://www.flowmeters.com/) connected to a PLC that calculates the volume continuously and stores the data in an archive via a SCADA application. As for its purity the same setup equipped for measurement of clarity, chemical content, conductivity. Again storing the data in an archive via SCADA application. Automation can prove to be a very accurate and cost effective solution ( simple to maintain too) to these kinds of applications. -Albert Blanco