Open AccessOverview of Nitrogen Removal in Constructed Wetland and Its Influencing Factors
Author(s) -
Gang Tang,
Yucui Shi,
Shijun You
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/697/1/012010
Subject(s) - wetland , eutrophication , nitrogen , environmental science , nutrient pollution , denitrification , environmental engineering , pollution , water pollution , environmental chemistry , ecology , chemistry , nutrient , biology , organic chemistry
Nitrogen, as a common substance in water pollution, can easily cause eutrophication of water when it is excessive. Constructed wetland, as a water treatment method that combines the common actions of plants, microorganisms, and substrates, has positive significance for the removal of nitrogen. This article reviews the nitrogen removal mechanism of each component in constructed wetlands, and the effects of temperature, carbon-nitrogen ratio, dissolved oxygen, pH, and HRT on denitrification, and proposes existing problems and research directions in constructed wetlands.