性做久久久久久坡多野结衣-性做久久久久久久久浪潮-性欲影院-性影院-国产精品线路一线路二-国产精品兄妹在线观看麻豆

產(chǎn)品展廳收藏該商鋪

您好 登錄 注冊

當前位置:
美國布魯克海文儀器公司>技術文章>The fate of iron nanoparticles in environmental waters treated with nanoscale zero-valent iron, FeON

技術文章

The fate of iron nanoparticles in environmental waters treated with nanoscale zero-valent iron, FeON

閱讀:257          發(fā)布時間:2017-5-26
 作者 Kelly Peetersa, Gaëtane Lespesb, Tea Zuliania, Janez Š?an?ara, Radmila Mila?i?a,

a Department of Environmental Sciences, Jo?ef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia

b Equipe de Chimie Analitique Bio-Inorganique et Environnement, IPREM CNRS UMR 5254, Université de Pau et des Pays de l'Adour, Hélioparc 64053 Pau, France

 

摘要:Among the different nanoparticles (NPs) that are used in the remediation of contaminated environmental waters, iron nanoparticles (FeNPs) are the most frequently applied. However, if these FeNPs remain in the waters after the treatment, they can cause a hazard to the environment. In this work the time dependent size distribution of iron particles was investigated in Milli-Q water, forest spring water and landfill leachate after a variety of FeNP treatments. The efficiency of the metal removal by the FeNPs was also examined. The concentrations of the metals in the aqueous samples were determined before and after the nano-remediation by inductively coupled plasma mass spectrometry (ICP-MS). The data revealed that the settling and removal of the FeNPs after the treatment of the waters was related to the sample characteristics and the ways of dispersing the NPs. When mixing was used for the dispersion, the nano zero-valent iron (nZVI), FeONPs and Fe3O4NPs settled quickly in the Milli-Q water, the forest spring water and the landfill leachate. Dispersion with tertramethylammonium hydroxide (TMAH) resulted in a slower settling of the iron aggregates. In the Milli-Q and forest spring waters treated with FeONPs and dispersed by TMAH, the nanosized iron remained in solution as long as 24 h after the treatment and could represent a potential threat in environmental waters with a low ionic strength. The removal of the metals strongly depended on the type of FeNPs, the chemical speciation of the elements and the sample matrix. If the FeNPs are contaminated by a particular metal, this contaminant could be, during the NPs treatment, released into the water that is being remediated.

收藏該商鋪

登錄 后再收藏

提示

您的留言已提交成功!我們將在第一時間回復您~

對比框

產(chǎn)品對比 產(chǎn)品對比 聯(lián)系電話 二維碼 意見反饋 在線交流

掃一掃訪問手機商鋪
010-62081908
在線留言
主站蜘蛛池模板: 千阳县| 汉阴县| 合山市| 宝鸡市| 巢湖市| 朝阳县| 息烽县| 库伦旗| 大英县| 黄山市| 兴海县| 宝兴县| 宁津县| 泉州市| 玉龙| 定陶县| 昂仁县| 台东县| 闽侯县| 江永县| 资兴市| 巨野县| 神池县| 太湖县| 米泉市| 岳阳县| 南涧| 安福县| 浦城县| 惠来县| 通渭县| 江都市| 仙游县| 丹江口市| 中西区| 瑞安市| 新和县| 辽中县| 嵩明县| 彝良县| 兴隆县|