Abstract:
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In recent years, stricter discharge permits require wastewater treatment plants to produce better quality effluent. As a result, plant operators now control growing numbers of more complicated processes. Often, plant staff levels are not increased commensurately with the increased numbers and complexities of the processes. However, if the processes are to operate efficiently and meet specific standards, proper monitoring and control are essential.
Traditionally, many types of analyses, such as chlorine residual, dissolved oxygen (DO), pH, turbidity, and nutrient concentrations, have been performed in the laboratory on grab or composite samples. However, today's instruments allow continuous, on-line monitoring of these parameters. Real-time automatic monitoring and control of costly resources can routinely achieve significant savings in energy and chemical consumption without sacrificing effluent quality. The revised version of this chapter provides information on additional sensors and incorporates a new section on facility personnel protection and security, including fire, card access, intrusion detection, closed-circuit television and page party systems.
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©2000 Water Environment Federation