汾河太原段铜污染土壤缓冲性能研究  

Study on Buffer Capacity of Copper Pollution Soil in Taiyuan Fenhe River

作　　者：潘萌[1] 崔建国[1] 张峰[1] 

机构地区：[1]太原理工大学环境科学与工程学院,太原030024

出　　处：《科学技术与工程》2015年第15期231-234,共4页Science Technology and Engineering

基　　金：山西省青年科技研究基金(2013021011-8);太原理工大学校青年基金(2013T082);太原理工大学校青年基金(2012L030)资助

摘　　要：研究了汾河太原段两种土壤的缓冲性及有机质对土壤缓冲性的影响,并对比原土和铜污染后土壤的缓冲性能。结果表明:铜污染会引起土壤p H值略微下降,铜污染引起的土壤p H值的变化与土壤吸附铜离子发生物理化学综合反应有关。土壤对酸缓冲性强弱程度依次是:A土>铜污染A土>B土>铜污染B土>脱OM A土>脱OM B土,有机质是影响两种土壤对酸缓冲性能的主要因素。土壤对碱缓冲性强弱程度依次是:B土>A土>铜污染B土>铜污染A土>脱OM B土>脱OM A土,铜离子和有机质都是影响两种土壤对碱缓冲性能的主要因素。The buffer action of two kinds of soil in Taiyuan Fenhe River and the influence of organic matter on soil buffer action were studied, buffering performance of original soil and copper polluted soil were compared. The resuhs showed that copper pollution caused the soil pH value slightly decreased, changes in soil pH caused by cop- per was related to physical and chemical synthesis reactions in copper adsorption. The order of acid buffer capacity of soil was ： soil A 〉 copper polluted soil A 〉 soil B 〉 copper polluted soil B 〉 OM removed soil A 〉 OM removed soil B, the main influence factors of two kinds of soil to acid buffer performance is organic matter; and the order of alkali buffer capacity of soil was： soil B 〉 soil A 〉 copper polluted soil B 〉 copper polluted soil A 〉 OM removed soil B 〉 OM removed soil A, the main influence factors of two kinds of soil to alkali buffer performance are copper and organic matter.

关 键 词：土壤缓冲 酸性 碱性 PH 

分 类 号：X53[环境科学与工程—环境工程]