Bryan Nick D, Barlow Jenny, Warwick Peter, Stephens Sarah, Higgo Jenny J W, Griffin David
Centre for Radiochemistry Research, Department of Chemistry, University of Manchester, Oxford Road, Manchester, UK M13 9PL.
J Environ Monit. 2005 Mar;7(3):196-202. doi: 10.1039/b413241f. Epub 2005 Jan 20.
Pulsed column experiments using Co, fulvic acid and porous sediment packing, along with up/down-flooding experiments using Eu, humic acid and intact sandstone blocks have been performed. The elution of metal and humic and their distribution along the sandstone columns have been measured. A mixed equilibrium and kinetic coupled chemical transport model has been used to simulate the results. In both cases, one exchangeable and one non-exchangeable component have been used to simulate the interaction of metal and humic substance. For the pulsed experiments, a simple equilibrium approach was used to model humic sorption, while a two component, kinetic model was required for the sandstone columns.
进行了使用钴、富里酸和多孔沉积物填料的脉冲柱实验，以及使用铕、腐殖酸和完整砂岩块的上/下注水实验。测量了金属和腐殖质的洗脱及其沿砂岩柱的分布。使用了一个混合平衡和动力学耦合的化学传输模型来模拟结果。在这两种情况下，都使用了一个可交换组分和一个不可交换组分来模拟金属和腐殖质的相互作用。对于脉冲实验，使用了一种简单的平衡方法来模拟腐殖质吸附，而对于砂岩柱则需要一个双组分动力学模型。
