Date of Award

2019

Degree Type

Thesis

Degree Name

Master of Science in Chemical Engineering (MSChE)

Department

Chemical Engineering

First Advisor

Arijit Bose

Abstract

Chlorinated volatile organic solvents (CVOCs) can form a contamination plume in groundwater that needs to be managed to protect human health and the environment. There are many injectable products available to treat contamination plumes in groundwater using a number of specific technologies, individually and in combination. This study evaluates the effectiveness of injectable colloidal activated carbon (PlumeStop® Liquid Activated Carbon™) at two sites in Rhode Island with chlorinated solvent groundwater contamination plumes. The injectate was introduced via low-pressure injection methods to avoid mobilizing additional contaminants.

The initial results show a reduction in contaminant levels downgradient of the injection points for both Sites. The long-term effectiveness of the injectate remains to be seen. GZA will continue to monitor the groundwater quality downgradient of the injections to evaluate breakthrough of the Permeable Reactive Barrier (PRB) formed by the PlumeStop injections.

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