地下水中硝酸盐氮处理技术  

Treatment Technology of Nitrate Nitrogen in Groundwater

作　　者：于晓梅 李阳[1] 马艳飞[1] YU Xiao-mei;LI Yang;MA Yan-fei(Shandong University of Technology,Zibo 255000,China)

机构地区：[1]山东理工大学,山东淄博255000

出　　处：《化工管理》2021年第17期31-32,共2页Chemical Engineering Management

摘　　要：文章研究了不同种类的改性生物炭吸附地下水中硝酸盐氮的影响因素。通过改性生物炭对地下水中硝酸盐氮的吸附机理和影响因素的分析,得出改性生物炭吸附地下水中硝酸盐氮的最佳组合条件。结果表明:当铁炭比为0.28的改性的椰壳生物炭吸附效果最佳。当水温为21℃时,投加20 g/L的改性生物炭与地下水中硝酸盐氮反应10 min,对硝酸盐氮去除率达到最佳,为81.38%。In this paper,the factors affecting the adsorption of nitrate nitrogen in groundwater by different kinds of modif ied biochar were studied.Through the analysis of the adsorption mechanism and influencing factors of modif ied biochar for nitrate nitrogen in groundwater,the optimal combination conditions of modif ied biochar for nitrate nitrogen adsorption in groundwater were obtained.The results showed that the modif ied coconut shell biochar had the best adsorption effect when the iron carbon ratio was 0.28.When the water temperature was 21℃,adding 20 g/L modif ied biochar and reacting with nitrate nitrogen in groundwater for 10 min,the removal rate of nitrate nitrogen was the best,which was 81.38%.

关 键 词：改性生物炭 硝酸盐氮 地下水 吸附 

分 类 号：X523[环境科学与工程—环境工程]