Effects of plant biomass on nitrate removal and transformation of carbon sources in subsurface-flow constructed wetlands

• Published in: Bioresource technology Vol. 101; no. 19; pp. 7286 - 7292
• Main Authors: Wen, Yue, Chen, Yi, Zheng, Nan, Yang, Dianhai, Zhou, Qi
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.10.2010; [New York, NY]: Elsevier Ltd; Elsevier
• Subjects: alkalis; analysis; Available carbon source; Biodegradation, Environmental; Biological and medical sciences; Biological treatment of waters; Biomass; Biotechnology; Carbohydrates; Carbohydrates - isolation & purification; Carbon; Carbon - metabolism; constructed wetlands; Construction; denitrification; Effluents; Environment and pollution; Fatty Acids, Volatile; Fatty Acids, Volatile - isolation & purification; Fundamental and applied biological sciences. Psychology; Industrial applications and implications. Economical aspects; isolation & purification; Litter; metabolism; methods; Nitrate removal; nitrates; Nitrates - isolation & purification; Nitrogen; Nitrogen - analysis; nitrogen content; organic matter; pharmacology; Plant biomass; plant litter; Plants (organisms); Proteins; Proteins - isolation & purification; Sodium Hydroxide; Sodium Hydroxide - pharmacology; Solubility; subsurface flow; Subsurface-flow constructed wetlands (SSF CWs); Time Factors; Typhaceae; Typhaceae - metabolism; Waste Disposal, Fluid; Waste Disposal, Fluid - methods; Wetlands; Nitrate removal; Subsurface-flow constructed wetlands (SSF CWs); Available carbon source; Plant biomass; Underground flow; Constructed wetland; Lagooning; Nitrates; Biomass; Carbon; Denitration

Denitrification is strongly dependent on carbon quantity and quality in most constructed wetlands (CWs). In this study, four batch CWs were designed, and were fed with nitrate-dominated water to investigate nitrate removal affected by plant and external cattail litter with or without alkali pretreat...