Jan Vymazal,WEI Ting,ZHAO Ya-qian,et al.Counting the Roles of Plants in Constructed Wetlands for Wastewater Treatment[J].China Water & Wastewater,2021,37(2 2):25-30.
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Counting the Roles of Plants in Constructed Wetlands for Wastewater Treatment

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第37卷 Number: 2 2 Page: 25-30 Column: Date of publication: 2021-01-17
Author(s):
Jan Vymazal1; 2; WEI Ting3; 4; ZHAO Ya-qian2; 3; 5; ülo Mander2; 6; Florent Chazarenc2; 7; LIU Ran-bin8; ZHOU Min-wei2
(1. Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Czech Republic; 2. Sino-European R & D Centre for Constructed Wetland Technology, Jiangsu HiPPO Plastics Co. Ltd.，Changzhou 213164, China; 3. State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi’an University of Technology, Xi’an 710048, China; 4. Chemical Engineering Department, University of Alcalá, Spain; 5. Dooge Centre for Water Resources Research, School of Civil Engineering, University College Dublin, Ireland; 6. Department of Geography, Tartu University, Estonia; 7. Centre INRAE Lyon-Grenoble AuvergneRhone-Alpes, France; 8. SinoDutch R & D Centre for Future Wastewater Treatment Technologies, Beijing University of Civil Engineering and Architecture, Beijing 100044, China)
Keywords:
constructed wetland; macrophytes; wastewater treatment
Abstract:
Wetland plants can morphologically and anatomically adapt to the ecological environment with reduced oxygen conditions and therefore, they can be used in constructed wetlands (CWs) for wastewater treatment. The presence of plants distinguishes CWs from stabilization ponds where plants are not intentionally planted. The plants are important for the treatment process as they provide many roles and create suitable conditions for removal of pollution. The most important roles include insulation of the filtration bed, light and wind attenuation, provision of oxygen to the rhizosphere, nutrient uptake, clogging prevention and aesthetic value. These roles are applicable to various extents depending on the type of CWs. The most common plants used in CWs are free floating Eichhornia crassipes and Lemna spp., submerged Myriophyllum spp. and Ceratophyllum spp., and emergent Phragmites australis and Typha spp. These plants are used in China but other emergent species such as Arundo donax, Thalia dealbata, Cyperus alternifolius or Canna indica are also commonly used.
Last Update: 2021-01-17