CHAPTER 11 – Sorptive Media Filtration: Sorptive media filtration is a unit process in which dissolved constituents are removed by chemical attachment to media at the molecular level. Three types of sorption are defined: adsorption, absorption, and ion exchange. Sorption capacity is explained, particularly the difference between total and operating capacity. The different media in use are described.

Some of the questions considered in Chapter 11

• What are the various media and what is the performance experience?
• Under what circumstances do sand filters remove dissolved pollutants?
• How does the sizing of a sorptive media filter differ from an inert media filter?
• What is operating capacity, how is it determined, and why does it matter?
• What are the various types of drain inlet inserts?
• How should sorptive media be specified?
• What are the limitations and design criteria for cold and semi-arid climates?

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