• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Soil, Sediment and Water >Removal of Lead from Contaminated Water
【24h】

Removal of Lead from Contaminated Water

机译：去除污水中的铅

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Over the past 25 years, about 750,000 sites with potential contamination have been reported to federal or state authorities. Heavy metals are the largest class of contaminants and also the most difficult to treat. This work focuses on the removal of lead from aqueous solution. Lead pollution impacts all the systems of the human body. Many of the methods utilized to remove lead from wastewater have shortcomings. Alkali Ash Material Permeable Reactive Barrier (AAM-PRB) is a newly developed novel material made with fly ash alkali activating solution and filler material (sand and coarse aggregates). AAM-PRB was used to remove lead (Pb) from contaminated water. AAM-PRB materials with high permeability were created. Permeability must be high for a reactive barrier material, in the range of 10-2 cm/sec to 10-1 cm/sec. AAM - PRB from three ash sources with permeability of 10-1 cm/sec were produced and crushed into pellets. Effectiveness of the various barriers was determined by batch and column tests. Laboratory experiments indicate lead ion reduces from 1000 ppm to less than 2 ppm with 10 liters of solution and Lead ion from 10 ppm to less than 0.01 ppm. Analyses were performed by Atomic adsorption techniques.
机译：在过去的25年中，已向联邦或州当局报告了大约750,000个可能受到污染的站点。重金属是最大的污染物类别，也是最难处理的污染物。这项工作的重点是从水溶液中去除铅。铅污染会影响人体的所有系统。用于从废水中去除铅的许多方法都有缺点。碱灰材料渗透性反应屏障（AAM-PRB）是一种新开发的新型材料，由粉煤灰碱活化溶液和填料（砂和粗骨料）制成。 AAM-PRB用于从污染水中去除铅（Pb）。创建了具有高渗透性的AAM-PRB材料。反应性阻隔材料的渗透率必须很高，在10-2 cm / sec到10-1 cm / sec的范围内。从三个灰分来源以10-1 cm / sec的渗透率生产AAM-PRB，并将其粉碎成颗粒。通过分批和柱测试确定各种障碍的有效性。实验室实验表明，使用10升溶液时铅离子从1000 ppm降低到2 ppm以下，铅离子从10 ppm降低到0.01 ppm以下。通过原子吸附技术进行分析。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号