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作 者:谢忠雷[1] 孙文田[1] 陈卓[1] 尹波[1] 汪精华[1]
出 处:《吉林大学学报(理学版)》2008年第3期565-570,共6页Journal of Jilin University:Science Edition
基 金:国家自然科学基金(批准号:40573052)
摘 要:通过实验室模拟,研究氟铝交互作用对茶园土壤中铝的吸附特征和形态分布的影响.结果表明,在氟铝交互作用下,茶园土壤中铝的吸附平衡时间延长,吸附速率下降,吸附量减少.茶园土壤对铝的吸附速率和吸附量大小顺序为:对照>n(F)∶n(Al)=2>n(F)∶n(Al)=4>n(F)∶n(Al)=8;对照和低氟铝比(n(F)∶n(Al)=2∶1)条件下,随茶园土壤对铝吸附量的增大,活性铝含量增加但转化率下降;高氟铝比(n(F)∶n(Al)=4∶1;8∶1)条件下,随茶园土壤对铝吸附量的增大,活性铝含量下降且转化率进一步降低.Abstract: Effects of interaction of fluoride-aluminum on adsorption characteristics and distribution of aluminum in tea garden soil were studied. With the elongation of the sorption time, decreasing in sorption rate and reducing in sorption capacity for aluminum in the tea garden soil were obtained in the order: control 〉 n(F) : n(Al) =2 〉n(F) : n(Al) =4 〉n(F) : n(Al) =8, in the different ratios of fluoride to aluminum. The transformation rate of the active aluminum is lessened with the increase of sorption amount of aluminum in the tea garden soil while the active aluminum quantity increased obviously under the control and n(F) : n(Al) = 2 : 1. However, with the increase of the sorption amount of aluminum, the content of active aluminum decreased and the transformation rate of active aluminum further decreased in the presence of n(F) : n(Al) =4 and n(F) : n(Al) =8.
分 类 号:X142[环境科学与工程—环境科学]
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