The Effect of Surfactants on Bacterial Transport in Porous Media

表面活性剂对多孔介质中细菌传输的影响

基本信息

批准号：
9710301
负责人：
Peter Jaffe
金额：
$ 12.45万
依托单位：
Princeton University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1997
资助国家：
美国
起止时间：
1997-10-01 至 2000-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9710301&HistoricalAwards=false
关键词：
Effect Surfactants Bacterial Transport Porous

项目摘要

9710301 Jaffe This is an award to support research on and relating to the effects that surfactants have on enhancing the movement of bacteria suspended in water through porous media. Experimental investigations are planned to relate the molecular structure of surfactants and concentration in water to their effects on bacterial cell surface charge and hydrophobicity. Additional experiments will be conducted to relate movement of bacteria through sand columns for determination of the effect that surfactants have on the collision efficiency factor in applying colloid filtration theory to movement of bacteria through soil. This experimental work will provide the framework for a mathematical formulation that may be used in engineering design of systems for decontamination of soil and for introduction of appropriately acclimated microorganisms into a plume of contaminated water for its decontamination. The introduction of surfactants to groundwater has the potential for significantly affecting the transport of bacteria in soil. Results of this project are expected to provide a means for predicting characteristics of bacterial transport in soil as they are influenced by surfactants. This knowledge may be applied in assessment of policies for intentional and unintentional introduction of surfactants to groundwater, design of systems to cope with contaminated plumes of groundwater such as wastewater streams from septic tanks and for design of systems to decontaminate soil using appropriately acclimated bacteria. ***

9710301 Jaffe这是一个奖项，旨在支持对表面活性剂对增强通过多孔介质悬浮在水中悬浮在水中的细菌运动的影响的研究。计划进行实验研究，以将表面活性剂的分子结构和水的浓度与对细菌细胞表面电荷和疏水性的影响。将进行其他实验，以将细菌通过沙柱移动，以确定表面活性剂对将胶体过滤理论应用于细菌通过土壤的运动的碰撞效率因子的影响。这项实验性工作将为数学配方提供框架，该框架可用于净化土壤的系统设计，并将适当适应的微生物引入到污染污染的水中。将表面活性剂引入地下水具有显着影响土壤中细菌运输的潜力。预计该项目的结果将提供一种预测土壤中细菌转运特征的方法，因为它们受表面活性剂的影响。这些知识可以应用于评估对地下水的故意和无意引入表面活性剂的政策，设计系统，以应对败属地下水的污染羽流，例如化粪池的废水流以及用于使用适当适应土壤进行污染的系统设计的系统，以设计对系统的设计。 ***