Estimation of ethanol mass delivery to groundwater from silicone polymer mats.

Estimation of ethanol mass delivery to groundwater from silicone polymer mats. Research Abstract Details 

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Estimation of ethanol mass delivery to groundwater from silicone polymer mats. Abstract Text:

Michelle E Grassi,Bradley M Patterson,Greg B Davis,Blair S Robertson,Allan J McKinley,

Hollow-fiber silicone tubing, coiled and shaped as mats, has been evaluated for its potential to provide predictable delivery of ethanol to aquifers to promote reducing conditions for enhanced bioremediation of a range of contaminants in groundwater. A model was developed to predict the steady-state mass flux of diffusional ethanol delivery to an external aqueous phase from an aqueous ethanol solution present inside the polymer tubing mat, and an effective diffusion coefficient of ethanol through the silicone tubing of 1.22 x 10(-6) cm2 s(-1) was determined experimentally. The model was then validated in column-scale laboratory and field experiments where polymer mats configured as permeable reactive barriers maintained uniform diffusive delivery of ethanol. Steady-state mass flux delivery ratios of ethanol through the polymer tubing wall of 1.45 (+/-0.18) x 10(6) to 1.64 (+/-0.17) x 10(6) s cm(-1) were determined under laboratory conditions, and 2.43 (+/-1.47) x 10(6) s cm(-1) under field conditions, which were found to be statistically similar to model-predicted ethanol mass flux delivery ratios.

Estimation of ethanol mass delivery to groundwater from silicone polymer mats. Publishing Authors By Initials

ME Grassi,BM Patterson,GB Davis,BS Robertson,AJ McKinley,

For similar public health practice: communicable disease control: infection control: sterilization research abstracts see: public health practice: communicable disease control: infection control: sterilization research

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Estimation of ethanol mass delivery to groundwater from silicone polymer mats. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Environmental science & technology

VOLUME: 41

Page Numbers: 5453-9

Journal Abbreviation: Environ. Sci. Technol.

ISSN: 0013-936X

DAY: 1

MONTH: Aug

YEAR: 2007

Estimation of ethanol mass delivery to groundwater from silicone polymer mats. Information

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LANGUAGE: eng

NlmUniqueID: 213155

Estimation of ethanol mass delivery to groundwater from silicone polymer mats. Keywords Mesh Terms:

KEYWORDS: Sterilization

MESH TERMS: chemistry

Chemical & Substance for Abstract: Estimation of ethanol mass delivery to groundwater from silicone polymer mats. Information

Substance Name: Ethanol

Registry Number: 64-17-5

Grant and Affiliation Information for Estimation of ethanol mass delivery to groundwater from silicone polymer mats.

AFFILIATION: Environmental Resources Management, P.O. Box 266, South Melbourne, VIC, 3205, Australia.

Country: United States

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MEDLINETA: Environ Sci Technol

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