pH对吉林西部湖泊底泥中不同形态氟迁移转化影响的实验研究.pdf

文档介绍：刘
璇等
pH 对吉林西部湖泊底泥中不同形态氟迁移转化影响的实验研究
pH 对吉林西部湖泊底泥中不同形态氟迁移
转化影响的实验研究*
刘
璇
梁秀娟
肖
霄
金成基
( 吉林大学环境与资源学院, 吉林
长春 130021)

摘要
针对吉林西部花敖泡、道字泡、大布苏泡等湖泊水体及底泥中氟污染严重情况, 利用土壤的连续分级浸提法, 分别在天
然状态下及不同 pH 下将吉林西部湖泊底泥中的氟逐级提取, 依次为水溶态氟、可交换态氟、铁锰结合态氟、有机束缚态氟及残余态
氟。研究吉林西部湖泊底泥中氟赋存形态及主要影响因素, 并基于 pH 对底泥中不同形态氟分布的影响来研究底泥氟在水土体系
中的迁移转化行为。

关键词
pH
氟
形态变化
影响因素
Experimental study on the impact of pH on the migration and transformation of various forms of fluorine in the lake mud
of the western Jilin
L I U X uan , L IA N G X iuj uan, X IA O X iao , J IN Cheng j i. ( Col lege of Env ironment and Re
sources, J ilin Univ ersity , Changchun J ilin 130021)
Abstract:
T he mud samples were co llect ed fro m 3 lakes of H uaao pao , Dao zipao , Dabusupao , w hich all located
at western o f Jilin pro vince. In order to find out the contaminativ e conditions o f fluo rine in w ater bo dy and mud of
these lakes, t he ex perimental o f sequential filtering extraction w as a pplied to extract different fo rms of f luorine from
lake mud under the natural st ate and different pH lev el. T he fluo rine w as divided int o water
soluble fluo rine, ex
change fluorine, iron
mang anese co mbined fluorine, o rg anic fluo rine and residual fluorine respect ively. F luorine ex ist
ing status in lakes o f western Jilin and the influencing facto rs w ere studied. T he effect of pH o n fluo rine dis