The document discusses different types of constructed wetland systems for wastewater treatment using macrophytes. It describes floating macrophyte filters (FMF) which use floating plant species to treat wastewater as it flows through channels. It also describes semi-submerged helophyte filters (FHS) which use emergent plant species with roots and lower stems submerged in wastewater flowing through channels. Key processes include sedimentation, nutrient absorption, and degradation of organic matter by microorganisms associated with plant roots. The systems can effectively remove BOD, nitrogen, phosphorus and other pollutants from wastewater.

1. WASTEWATER TREATMENT USING CONSTRUCTED WETLANDS Macrophytes Floating Filter (FMF) Helophytes Semi-submerged Filter (FHS) José de Miguel Muñoz Eduardo Casado Fernández

2. WETLAND ZONES Phreatic level Photic Zone Pleuston Limnos Bentos Deep Zone Transition zone Nearest medium Furthest Coastal Zone Pel agic Zone (open waters) Transition zone

11. WATER TREATMENT SYSTEMS DEPENDING ON USED PLANT TYPES

17. WATER TREATMENT SYSTEMS DEPENDING ON FLOW TYPE.

22. MACROPHYTES FLOATING FILTER (FMF)

24. MACROPHYTES FLOATING FILTER (FMF)

32. FMF SYSTEM DESCRIPTION

37. SEMI-SUBMERGED HELOPHYTES FILTER (FHS)

40. SEMI-SUBMERGED HELOPHYTES FILTER (FHS)

47. Planting Systems

49. Planting Systems

50. DEPURATION PROCESSES

57. REFERENCE VALUES

60. Physic-chemical SYSTEM FOR PIG SLUDGE TREATMENT.

61. Construction phases of an artificial wetland in channels.