铁改性生物炭捕集水体磷机制及农田资源化回用进展  

Using iron-modified biochar to adsorb phosphorus from eutrophic water and reusing it as a phosphorus fertilizer:A review

作　　者：张峻霄 夏桂敏[1] 刘啸威 吴奇[1] 迟道才[1] ZHANG Junxiao;XIA Guimin;LIU Xiaowei;WU Qi;CHI Daocai(College of Water Resource,Shenyang Agricultural University,Shenyang 110161,China)

机构地区：[1]沈阳农业大学水利学院,沈阳110161

出　　处：《灌溉排水学报》2024年第2期106-112,共7页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(52279039);国家自然基金区域创新发展联合基金(U21A20217);国家重点研发计划资助(2022YFD1500701);兴辽英才计划(XLYC1902064)。

摘　　要：利用铁改性生物炭从富营养化水体中捕集磷,将其回用于农田,是高效利用生物质、促进磷资源高效利用的有效途径之一。然而,铁改性生物炭对磷的吸附效率受制备方式和水环境的影响极大。为促进富营养化水体磷的捕集效率和再利用,本文总结了国内外铁改性生物炭(Fe-B)的制备方法及其对水体中磷酸盐的吸附性能,阐述了Fe-B对磷的吸附机制,分析了pH值、共存离子、生物炭用量和温度对Fe-B吸附磷酸盐性能的影响,分析了富营养化水体中磷的农田资源化再利用潜力。本研究结果可为富营养化水体磷捕集与资源化再利用提供理论参考。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.

关 键 词：铁改性生物炭 富营养化水体 磷 吸附 农田 

分 类 号：X703[环境科学与工程—环境工程]