part Part I: Technical Underpinnings -- chapter 1 Introduction to Treatment Wetlands -- chapter 2 Hydrology and Hydraulics -- chapter 3 Treatment Wetland Vegetation -- chapter 4 Energy Flows -- chapter 5 Air, Water, and Soil Chemical Interactions -- chapter 6 Representing Treatment Performance -- chapter 7 Suspended Solids -- chapter 8 Carbon and Biochemical Oxygen Demand -- chapter 9 Nitrogen -- chapter 10 Phosphorus -- chapter 11 Halogens, Sulfur, Metals, and Metalloids -- chapter 12 Pathogens -- chapter 13 Organic Chemicals -- chapter 14 Event-Driven Wetlands -- part Part II: Implementation -- chapter 15 Evolution of Sizing Methods -- chapter 16 Design Basis -- chapter 17 Sizing of FWS Wetlands -- chapter 18 Implementation of FWS Wetlands -- chapter 19 Ancillary Benefits -- chapter 20 Sizing of SSF Wetlands -- chapter 21 Implementation of SSF Wetlands -- chapter 22 Management, Operations, and Maintenance -- chapter 23 Economics -- chapter 24 Modified and Combined Systems -- chapter 25 Wetlands by Application Group.