Phytoremediation facilitates removal of nitrogen and phosphorus from eutrophicated water and release from sediment.
Phosphorus (P) fractions and the effect of phytoremediation on nitrogen and phosphorus removal from eutrophicated water and release from sediment were investigated in the eco-remediation experiment enclosures installed in the Hua-jia-chi pond (Hangzhou city, Zhejiang province, China). The main P fraction in the sediment was inorganic phosphorus (IP). For the mesotrophic sediments, IP mainly consisted of HCl-extractable P (Ca-P). The annual-average concentration of total nitrogen (TN), total phosphorus (TP) in water and the content of TN, TP in different vertical depth of sediment in the experiment enclosures with hydrophyte were always much lower than those in the control enclosure without hydrophyte and those outside of experiment enclosures. It is suggested that phytoremediation was an effective technology for N and P removal from eutrophicated water and release from sediment.
Xiang
Wu
W
Department of Chemistry, College of Life Sciences, Huzhou University, Huzhou City, Zhejiang Province, 313000, China. wwxx1981@126.com
Xiao-E
Yang
Y
Rengel
Zed
Z
D000535:Aluminum / Q000032:analysis; D001673:Biodegradation, Environmental; D018533:Biomass; D002118:Calcium / Q000032:analysis; D002244:Carbon / Q000032:analysis; D031806:Eichhornia / Q000378:metabolism; D004784:Environmental Monitoring; D005068:Eutrophication; D005618:Fresh Water / Q000737:chemistry*; D019015:Geologic Sediments / Q000737:chemistry*; D031321:Hydrocharitaceae / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000032:analysis; D009584:Nitrogen / Q000032:analysis* / Q000378:metabolism; D010758:Phosphorus / Q000032:analysis* / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism
D014874:Water Pollutants, Chemical; D010758:Phosphorus; D002244:Carbon; D000535:Aluminum; D007501:Iron; D009584:Nitrogen; D002118:Calcium