Using iron-modified biochar to adsorb phosphorus from eutrophic water and reusing it as a phosphorus fertilizer:A review
ZHANG Junxiao
XIA Guimin
LIU Xiaowei
WU Qi
CHI Daocai
Abstract：Using Fe-modified biochar(Fe-B)to capture phosphorus in eutrophic water and then reusing it as a phosphorus fertilizer for agricultural production is a sustainable way to remediate surface water eutrophication and develop agriculture.However,the adsorption efficiency of Fe-modified biochar is influenced by a variety of factors including methods to produce biochar and surface water environment.In this review,we analyze different methods to manufacture Fe-B and their efficacy for phosphate adsorption.Other factors we analyzed include pH value,coexisting ions,biochar application rate,temperature which have shown to affect the capacity of Fe-B to adsorb phosphorus.We also discuss the potential of Fe-B and the phosphorus it adsorbed to be reused as a slow-release phosphorus fertilizer for agricultural production,as well as the perspective of Fe-modified biochar(Fe-B)and its applications.
Keywords：Fe-modified biochareutrophic waterphosphorusadsorptionfarmland
Publication Date：2024-02-28
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 106-112 )