A Novel Method for Arsenic Removal at Low Concentrations
A Novel Method for Arsenic Removal at Low Concentrations
复制标题
一种低浓度除砷新方法
DOI：
10.1080/00908310290086914
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
M. Islam
中科院分区：
文献类型：
--
作者：
N. Wasiuddin;M. Tango;M. Islam
水中低浓度砷的存在是严重的环境问题。虽然它是一种天然存在的致癌元素，但它也可以通过许多工业活动释放到大气中。本文旨在揭示人发对受污染饮用水中砷的吸附特性。已发现人的头发在从稳定的油-水乳液中分离油和水方面非常有效（最近进行的美国能源部研究）。静态和动态测试，沿着与数值模拟，已被执行，以观察人的头发作为吸附剂的性能。静态试验表明，通过在低浓度下的高吸附容量，具有令人满意的性能。动态实验证明了该技术在填料床中的可行性。数值模拟被用来进行各种参数研究，并扩大实验室数据。最后，提出了一种压实的毛垫用于柱中，并提出了一些未来的应用前景。
The presence of low concentrations of arsenic in water is of serious environmental concern. Though it is a naturally occurring carcinogenic element, it could also be released into the atmosphere through numerous industrial activities. The objective of this paper is to reveal arsenic-adsorptive properties of human hair from contaminated drinking water. Human hair has been found to be extremely effective in separating oil and water from stable oil-water emulsions (recently conducted US DoE study). Both static and dynamic tests, along with numerical modeling, have been performed to observe the performance of human hair as an adsorbent. Static tests show satisfactory performance through high adsorption capacity at low concentrations. Dynamic tests demonstrate the feasibility of the technique in a packed bed column. Numerical modeling was used to conduct various parametric studies and to scale up laboratory data. Finally, a compacted hair pad has been suggested for use in the column, and some prospective future applications have been proposed.