Theses and Dissertations

Issuing Body

Mississippi State University


Bricka, Ray M.

Committee Member

Zappi, Mark E.

Committee Member

Toghiani, Rebecca K.

Committee Member

Pote, Jonathan W.

Date of Degree


Document Type

Graduate Thesis - Open Access


Chemical Engineering

Degree Name

Master of Science


James Worth Bagley College of Engineering


Dave C. Swalm School of Chemical Engineering


The purpose of this research was to determine if two commonly used soil-washing extracting agents, namely EDTA and nitric acid, could be recycled and reused in subsequent soil-washing processes. This research focuses on the removal of lead from three real-world soils collected from military installations and the evaluation of a chelating polymer termed Type-M Forager® Sponge to recycle the soil-washing effluent. The results of this experiment indicate that the EDTA soil-washing effluent was as effective at removing lead from soil after two recycle processes as it was during the initial simulated soil-washing process. The nitric acid extracting agent solution, however, was neutralized during the first soil-washing simulation for each of the soils tested. Therefore, the Type-M Forager® Sponge was evaluated and proved to be effective as a waste minimization process for the acid soil-washing effluents.



Forager Sponge||soil washing||lead||metal||acid||chelant||recycle||EDTA