Evaluation of Metal Attenuation through Paper Clay Utilized for Containment of Contaminated Groundwater
Evaluation of Metal Attenuation through Paper Clay Utilized for Containment of Contaminated Groundwater
复制标题
用于遏制受污染地下水的纸粘土的金属衰减评估
DOI：
--
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
H. Moo
中科院分区：
文献类型：
--
作者：
C. Ochola;H. Moo
纸粘土的一些特性使其在垂直屏障中的应用非常有前景。本文研究了欧文纸业公司和国际纸业公司的两种纸泥（也称为纸泥）的特性。为了确定纸粘土对重金属衰减的可行性，进行了批量试验、柱试验、水力导电性试验和压力过滤试验。批量测试表明，国际纸粘土中金属的分布系数（Kd）低至锰的0.002 L/g，高至铅的6.7 L/g。在Erving纸粘土中，锰的Kd值从0.007 L/g到1.9 L/g，而国际纸粘土的Kd值从0.002 L/g到6.7 L/g。化学吸附是两种粘土中主要的金属结合机制，唯一的例外是锰在国际纸粘土上的吸附，表明其具有恒定的p…
Paper clay has several properties that make its use in vertical barriers very promising. In this paper the characteristics of two paper sludges (which will also be referred to as paper clays) one from the Erving Paper Company and one from the International Paper Company are considered. To determine the feasibility of paper clay for heavy metal attenuation, batch tests, column tests, hydraulic conductivity tests, and pressure filtration tests were performed. Batch testing showed that the metal, the distribution coefficient (Kd) ranged from as low as 0.002 L/g for manganese to as high as 6.7 L/g for lead in International paper clay. In the Erving paper clay the Kd ranged from 0.007 L/g for manganese to 1.9 L/g for cadmium, while the International paper clay Kd ranged from 0.002 L/g for manganese to 6.7 L/g for lead. Chemisorption was established as the predominant metal binding mechanism in both clays with the only exceptions being manganese adsorption on International paper clay that indicated a constant p...