Development of Screening and Modeling Tools for Colloid-Facilitated Transport of Contaminants in the Subsurface

开发地下胶体促进污染物传输的筛选和建模工具

基本信息

  • 批准号:
    0228911
  • 负责人:
  • 金额:
    $ 25.24万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2003
  • 资助国家:
    美国
  • 起止时间:
    2003-07-15 至 2006-06-30
  • 项目状态:
    已结题

项目摘要

0228911 Eliimelech Contaminant transport models substantially underestimate migration distances of strongly sorbing contaminants when neglecting colloid-facilitated transport. Since the mechanisms of colloid-facilitated transport are relatively poorly understood, it is quite challenging to predict the potential for colloid-facilitated transport in a contaminated subsurface environment. Hence, there is a critical need for a set of conservative criteria that will enable prediction of the potential for colloid-facilitated transport.The major objectives of the proposed research are: (i) to develop a set of criteria for quantifyingthe effect of various relevant chemicals (Na + , K + , Ca 2+ , Mg 2+ , pH, ligands, organic acids, humic and fulvic acids) on colloid mobilization (release), (ii) to develop a simple approach to determine colloid deposition rates in natural subsurface environments, and (iii) to establish a set of conservative criteria and screening tools for prediction of the potential for colloid-facilitated transport.The objectives of the work outlined above and the following related hypotheses provide thefoundation for this proposed research: (a) The worst-case scenario for colloid-facilitated transport can be obtained by considering irreversible adsorption of contaminants to the mobile colloidal particles. (b) In soils and several types of aquifer sediments, the mobilized colloidal particles have similar chemical properties as the stationary solid matrix. Hence, conservative criteria for the potential of colloid-facilitated transport can be derived from simple colloid aggregation rate measurements by light scattering drawing on the analogy between aggregation and deposition kinetics. Fast colloid aggregation kinetics may suggest limited colloid transport whereas slow aggregation kinetics may suggest the potential for colloid-facilitated transport. Completion of the proposed work will involve the following research tasks: (1) selection of representative subsurface solid materials and their characterization, (2) studying the effect of solution chemistry on colloid mobilization, (3) studying the deposition behavior of the mobile colloidal particles, (4) characterization of the mobile colloidal particles, (5) development of a rapid method for measuring deposition rate of mobile colloids, and (6) modeling colloid transport and possible scenarios of colloid-facilitated transport.Broader Impacts. The majority of requested funds are directed toward the training of a doctoralstudent. The student will be utilizing state-of-the-art experimental (e.g., multiangle light scattering) and analytical tools. At Yale, it is mandatory for all undergraduate students to carry out an original project (thesis) during their senior year; one undergraduate student will carry out her/his senior thesis as part of this project. Outreach will involve work with LEAP (Leadership, Education, and Athletics in Partnership), a non-profit organization operating in New Haven, that seeks to help children aged 7 to 14 from high-poverty urban neighborhoods develop academic skills and self-esteem.
0228911当忽略胶体促进的污染物迁移时,埃利米勒污染物迁移模型大大低估了强吸附污染物的迁移距离。由于胶体促进运输的机制相对知之甚少,因此预测在受污染的地下环境中胶体促进运输的潜力是相当具有挑战性的。因此,迫切需要一套保守的标准来预测胶体促进运输的潜力。拟议研究的主要目标是:(I)制定一套量化各种相关化学物质(Na+、K+、钙、镁、pH、配体、有机酸、腐植酸和富里酸)对胶体动员(释放)的影响的标准,(Ii)开发一种简单的方法来确定自然地下环境中的胶体沉积速率,以及(Iii)建立一套保守的标准和筛选工具来预测胶体促进迁移的可能性。上述工作的目标和以下相关假设为拟议的研究提供了基础:(A)通过考虑污染物在可移动的胶体颗粒上的不可逆吸附,可以获得胶体促进迁移的最坏情况。(B)在土壤和几种类型的含水层沉积物中,被动员的胶体颗粒与固定的固体基质具有相似的化学性质。因此,利用聚集和沉积动力学之间的类比,通过光散射测量简单的胶体聚集率,可以得到胶体促进传输潜力的保守标准。快速胶体聚集动力学可能表明胶体转运有限,而缓慢聚集动力学可能暗示胶体促进转运的可能性。拟完成的工作将涉及以下研究任务:(1)选择具有代表性的地下固体材料及其表征,(2)研究溶液化学对胶体动员的影响,(3)研究移动胶体颗粒的沉积行为,(4)移动胶体颗粒的表征,(5)开发一种快速测量移动胶体沉积速率的方法,以及(6)模拟胶体传输和胶体促进传输的可能情景。申请的大部分资金都用于培养博士生。学生将利用最先进的实验(如多角度光散射)和分析工具。在耶鲁大学,所有本科生都必须在大四期间完成一项原创项目(论文);其中一名本科生将把自己的大四论文作为项目的一部分。外展将涉及与LEAP(领导力、教育和田径合作)的合作,LEAP是一个在纽黑文运营的非营利性组织,旨在帮助来自高度贫困的城市社区的7至14岁的儿童发展学习技能和自尊。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Menachem Elimelech其他文献

Revisiting solute transport in polyamide membranes: Insights from neutral solute partitioning
重新审视聚酰胺膜中的溶质传输:来自中性溶质分配的见解
  • DOI:
    10.1016/j.memsci.2025.124117
  • 发表时间:
    2025-06-01
  • 期刊:
  • 影响因子:
    9.000
  • 作者:
    Ruoyu Wang;Menachem Elimelech
  • 通讯作者:
    Menachem Elimelech
Reply to “A resurrection of the Haber-Weiss reaction”
回复“哈伯-维斯反应的复活”
  • DOI:
    10.1038/s41467-021-27824-1
  • 发表时间:
    2022-01-19
  • 期刊:
  • 影响因子:
    15.700
  • 作者:
    Yumeng Zhao;Meng Sun;Menachem Elimelech
  • 通讯作者:
    Menachem Elimelech
Graphene oxide membranes with stable porous structure for ultrafast water transport
  • DOI:
    DOI: 10.1038/s41565-020-00833-9
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    38.3
  • 作者:
    Wen-Hai Zhang;Ming-Jie Yin;Qiang Zhao;Cheng-Gang Jin;Naixin Wang;Shulan Ji;Cody L. Ritt;Menachem Elimelech;Quan-Fu An
  • 通讯作者:
    Quan-Fu An
Environmental performance of graphene-based 3D macrostructures
基于石墨烯的三维宏观结构的环境性能
  • DOI:
    10.1038/s41565-018-0325-6
  • 发表时间:
    2019-01-07
  • 期刊:
  • 影响因子:
    34.900
  • 作者:
    Nariman Yousefi;Xinglin Lu;Menachem Elimelech;Nathalie Tufenkji
  • 通讯作者:
    Nathalie Tufenkji
The role of nanotechnology in tackling global water challenges
纳米技术在应对全球水挑战中的作用
  • DOI:
    10.1038/s41893-018-0046-8
  • 发表时间:
    2018-04-18
  • 期刊:
  • 影响因子:
    27.100
  • 作者:
    Meagan S. Mauter;Ines Zucker;François Perreault;Jay R. Werber;Jae-Hong Kim;Menachem Elimelech
  • 通讯作者:
    Menachem Elimelech

Menachem Elimelech的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Menachem Elimelech', 18)}}的其他基金

NSF-BSF: Selective Transport of Divalent Cations through Polymeric Membranes Using Host-Guest Chemistry
NSF-BSF:利用主客体化学选择性通过聚合物膜传输二价阳离子
  • 批准号:
    2110138
  • 财政年份:
    2021
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Standard Grant
NSF-BSF Application: Selective Electrosorption for Boron Removal and Recovery from Seawater
NSF-BSF 应用:选择性电吸附用于海水中硼的去除和回收
  • 批准号:
    2001219
  • 财政年份:
    2020
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Standard Grant
SusChEM: Beyond Thermal Separations: Development of Ultra High Pressure Reverse Osmosis Membranes for Energy Efficient Desalination of Hypersaline Brines
SusChEM:超越热分离:开发超高压反渗透膜,用于高盐卤水的节能脱盐
  • 批准号:
    1701658
  • 财政年份:
    2017
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Standard Grant
SusChEM: Development of Next-Generation, Ultra-Selective Aquaporin-Based Membranes for Sustainable Water Purification
SusChEM:开发下一代超选择性水通道蛋白膜,用于可持续水净化
  • 批准号:
    1437630
  • 财政年份:
    2014
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Standard Grant
Engineered Osmosis for Sustainable Production of Water and Energy: Development of High Performance Micromolded Membranes
用于水和能源可持续生产的工程渗透:高性能微模压膜的开发
  • 批准号:
    1232619
  • 财政年份:
    2012
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Continuing Grant
Carbon Nanotubes in Soils: Transport, Filtration, and Impact on Soil Microbial Community
土壤中的碳纳米管:运输、过滤以及对土壤微生物群落的影响
  • 批准号:
    0828795
  • 财政年份:
    2008
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Continuing Grant
Aggregation and Deposition Behavior of Carbon Nanotubes in Aquatic Environments
碳纳米管在水生环境中的聚集和沉积行为
  • 批准号:
    0646247
  • 财政年份:
    2006
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Standard Grant
Collaborative Research: Fullerene Aggregation in Aquatic Systems
合作研究:水生系统中的富勒烯聚集
  • 批准号:
    0504258
  • 财政年份:
    2005
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Continuing Grant
Mechanisms of Concentration Polarization and Cake Formation in Crossflow Membrane Filtration of Aqueous Colloidal Particles
水性胶体颗粒错流膜过滤中浓度极化和滤饼形成机制
  • 批准号:
    0114527
  • 财政年份:
    2001
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Continuing Grant
Colloid Release from Geochemically Heterogeneous Porous Media Surfaces
地球化学非均质多孔介质表面的胶体释放
  • 批准号:
    9996240
  • 财政年份:
    1999
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Continuing Grant

相似国自然基金

基于Safe screening的多任务稀疏学习理论与算法的研究
  • 批准号:
  • 批准年份:
    2020
  • 资助金额:
    51 万元
  • 项目类别:
    面上项目
基于Safe screening 的支持向量机的稀疏理论及其快速求解方法
  • 批准号:
    11671010
  • 批准年份:
    2016
  • 资助金额:
    48.0 万元
  • 项目类别:
    面上项目

相似海外基金

Development of a 3D neurovascular unit for in vitro modeling of subarachnoid hemorrhage and screening therapies
开发用于蛛网膜下腔出血体外建模和筛选治疗的 3D 神经血管单元
  • 批准号:
    10722387
  • 财政年份:
    2023
  • 资助金额:
    $ 25.24万
  • 项目类别:
Improving Universal Screening and Modeling the Effects on Referral and Diagnosis for Autism Spectrum Disorder
改善普遍筛查并建模对自闭症谱系障碍转诊和诊断的影响
  • 批准号:
    10527839
  • 财政年份:
    2022
  • 资助金额:
    $ 25.24万
  • 项目类别:
SCH: Screening and confirmatory machine learning for explainable modeling of non-cancer deaths in cancer patients
SCH:筛选和验证机器学习,用于癌症患者非癌症死亡的可解释模型
  • 批准号:
    10596376
  • 财政年份:
    2022
  • 资助金额:
    $ 25.24万
  • 项目类别:
Improving Universal Screening and Modeling the Effects on Referral and Diagnosis for Autism Spectrum Disorder
改善普遍筛查并建模对自闭症谱系障碍转诊和诊断的影响
  • 批准号:
    10666596
  • 财政年份:
    2022
  • 资助金额:
    $ 25.24万
  • 项目类别:
Optimizing Age-based Anal Cancer Screening Among People Living with HIV using Decision Analytic Modeling
使用决策分析模型优化艾滋病毒感染者中基于年龄的肛门癌筛查
  • 批准号:
    10775089
  • 财政年份:
    2022
  • 资助金额:
    $ 25.24万
  • 项目类别:
SCH: Screening and confirmatory machine learning for explainable modeling of non-cancer deaths in cancer patients
SCH:筛选和验证机器学习,用于癌症患者非癌症死亡的可解释模型
  • 批准号:
    10689198
  • 财政年份:
    2022
  • 资助金额:
    $ 25.24万
  • 项目类别:
Generation of mini liver tissue with complex cellular and architectural properties for disease modeling and drug screening
生成具有复杂细胞和结构特性的微型肝组织,用于疾病建模和药物筛选
  • 批准号:
    21K16377
  • 财政年份:
    2021
  • 资助金额:
    $ 25.24万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
DISEASE MODELING AND PHENOTYPIC DRUG SCREENING FOR DYSTROPHIC CARDIOMYOPATHY
营养不良性心肌病的疾病建模和表型药物筛选
  • 批准号:
    10164856
  • 财政年份:
    2020
  • 资助金额:
    $ 25.24万
  • 项目类别:
Modeling the Disease Burden and Cost-Effectiveness of Screening and Treatment for Non-Alcoholic Fatty Liver Disease in Type 2 Diabetes Patients
模拟 2 型糖尿病患者非酒精性脂肪肝筛查和治疗的疾病负担和成本效益
  • 批准号:
    10474392
  • 财政年份:
    2020
  • 资助金额:
    $ 25.24万
  • 项目类别:
DISEASE MODELING AND PHENOTYPIC DRUG SCREENING FOR DYSTROPHIC CARDIOMYOPATHY
营养不良性心肌病的疾病建模和表型药物筛选
  • 批准号:
    10116566
  • 财政年份:
    2020
  • 资助金额:
    $ 25.24万
  • 项目类别:
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了