Читать книгу Automation of Water Resource Recovery Facilities - Water Environment Federation - Страница 27

Monitoring of several key process parameters is required under water-quality regulations. State and federal discharge permits, for example, require WRRFs to record their daily flowrates and report average monthly and maximum daily flows. Most WRRFs also must collect flow-weighted composite samples for analysis. The samples may be collected by an operator and composited manually based on the flowrate during sampling or collected by an automatic sampler paced by a flow meter’s signal.