Theory of Wastewater Treatment by Constructed Wetland and Removal of Nitrogen and Phosphorus
XI Jun-xiu
Abstract
XI Jun-xiu
Abstract
As a land intensive biological treatment system, the constructed wetland has complicated purifying mechanism including physio-chmistry and biochemistry. Soil, plant and microbe are three basic constitutions of constructed wetland. In this paper, the basic constitutions of constructed wetland are introduced to show the theory of wastewater treatment of constructed wetland and some achievements and problems as well as some studies on the removal of nitrogen and phosphorus by constructed wetland are described.
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As a land intensive biological treatment system, the constructed wetland has complicated purifying mechanism including physio-chmistry and biochemistry. Soil, plant and microbe are three basic constitutions of constructed wetland. In this paper, the basic constitutions of constructed wetland are introduced to show the theory of wastewater treatment of constructed wetland and some achievements and problems as well as some studies on the removal of nitrogen and phosphorus by constructed wetland are described.
Key concepts: Wetland, Constructed wetland, Phosphorus, Sewage treatment, Wastewater, Environmental science, Environmental engineering, Nitrogen