Application of ferrihydrite and calcite as composite sediment capping materials in a eutrophic lake

摘要

Ferrihydrite (Fh) and calcite were used as reactive capping layers for a eutrophic lake. The effectiveness of Fh and/or calcite capping for demobilizing phosphorus (P) in the sediment from the overlying water was tested, and the responses of carbon (C), nitrogen (N), and iron (Fe) to different capping treatments were analyzed as well.