SGER: In Situ Remediation of Contaminated Water with AAM Permeable Reactive Barrier to Remove Mercury and Lead

0091655 Jahanian该项目的目标是开发一种新型的、经济的和可重复使用的可渗透反应屏障，有效地去除污染水中的铅和汞。 具体而言，本研究将调查使用碱活化粉煤灰（AAM）制成的可渗透反应屏障（PRB）的可能性。 AAM目前处于开发阶段，是一种由粉煤灰与砂、粗骨料、水、氢氧化钠、硅酸钠和发泡剂组合制成的新型材料。 初步结果表明，AAM PRB有效地去除水溶液中的镉和铬。 本研究的目的是确定这种屏障材料是否会去除铅和汞，并调查这种去除的机制和条件。 进一步的研究将研究回收和再利用屏障材料的方法。 如果成功的话，该项目的成果可能导致在补救受污染的地下水方面取得进展，同时利用否则将在垃圾填埋场处置的资源。

0091655 Jahanian The objective of this project is to develop a novel, economical and reusable permeable reactive barrier that effectively removes lead and mercury form contaminated water. Specifically, the research will investigate the possibility of using permeable reactive barriers (PRBs) made with alkali activated fly ash (AAM). The AAM, currently in the developmental stage, is a new and novel material made from fly ash in combination with sand, coarse aggregates, water, sodium hydroxide, sodium silicate and a foaming agent. Preliminary results have demonstrated that an AAM PRB effectively removes cadmium and chromium from aqueous solution. The purpose of this research is to determine whether such a barrier material will remove lead and mercury and to investigate the mechanisms and conditions of such removal. Further studies will study the methods for recycling and reusing the barrier material. If successful, the results of this project could lead to advances in the remediation of contaminated groundwaters, while at the same time, utilizing a resource that otherwise would be disposed of in landfills.***