生物炭去除水中硝酸盐氮研究进展  

Research Progress on Removal of Nitrate Nitrogen in Water by Biochar

作　　者：余凡 杨心远 何梦凡 Yu Fan;Yang Xinyuan;He Mengfan(School of Environmental and Municipal Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,China)

机构地区：[1]华北水利水电大学环境与市政工程学院,河南郑州450046

出　　处：《山东化工》2023年第21期138-141,147,共5页Shandong Chemical Industry

摘　　要：生物炭在吸附治理水环境中硝酸盐污染的问题上受到国内外学者的广泛关注。为了更加高效经济地去除水中污染物硝酸盐氮(NO_(3)^(-)-N),首先对NO_(3)^(-)-N的来源、危害以及特点进行了阐述,在介绍已有NO_(3)^(-)-N处理方法的基础上,对各种方法的作用原理、适用范围以及优缺点进行了详细的阐述与分析。根据对目前国内外应用生物炭吸附NO_(3)^(-)-N的研究文献进行总结,探讨了吸附过程中环境因素对生物炭吸附效能的影响,分析了吸附反应中的各种吸附机理。基于生物炭吸附NO_(3)^(-)-N的基础上,提出了提高生物炭吸附效率的改性方法以及在工业废水上的应用处理。并指出了生物炭吸附NO_(3)^(-)-N的可行性,为我国对水体中NO_(3)^(-)-N的治理提供了一定的借鉴。Biochar has attracted wide attention from scholars at home and abroad in the adsorption and treatment of nitrate pollution in water environment.In order to remove the pollutant nitrate nitrogen(NO_(3)^(-)-N)in water more efficiently and economically,the source,harm and characteristics of NO_(3)^(-)-N were described.On the basis of introducing the existing NO_(3)^(-)-N treatment methods,the principle,scope of application,advantages and disadvantages of various methods were described and analyzed in detail.Based on the summary of the research literature on the adsorption of NO_(3)^(-)-N by biochar at home and abroad,this paper discusses the influence of environmental factors on the adsorption efficiency of biochar in the adsorption process,and analyzes various adsorption mechanisms in the adsorption reaction.Based on the adsorption of NO_(3)^(-)-N by biochar,the modification method to improve the adsorption efficiency and the application treatment of industrial wastewater were proposed.The feasibility of biochar adsorbing NO_(3)^(-)-N was pointed out.It provides a reference for the treatment of NO_(3)^(-)-N in water in China.

关 键 词：NO_(3)^(-)-N 生物炭 去除方法 去除机理 影响因素 

分 类 号：TQ424[化学工程] X703[环境科学与工程—环境工程]