Fig. 1 The three classical types of constructed wetlands (a) surface flow (SF), (b) horizontal
subsurface flow (HSSF) and (c) vertical subsurface flow (VF). Reprinted from Ecological Engineering (51), Fonder and Headley, The taxonomy of treatment wetlands: A proposed classification
and nomenclature system, 203–211, Copyright (2013), with permission from Elsevier [30]
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subsurface flow (HSSF) and (c) vertical subsurface flow (VF). Reprinted from Ecological Engineering (51), Fonder and Headley, The taxonomy of treatment wetlands: A proposed classification
and nomenclature system, 203–211, Copyright (2013), with permission from Elsevier [30]
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