Fugacity Model for Predicting Phase Distribution and Biotreatment Feasibility of Mixed Organic Compounds and Non-Aqueous Phase Liquid

Volume 4 - Issue 5

Pamela L Sheehan¹* and Jerome J Kukor²

Received: March 12, 2020;   Published: March 31, 2020

DOI: 10.32474/OAJESS.2020.04.000199

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Abstract

Screening tools for predicting the feasibility of remediating complex mixtures of organic compounds are needed to reliably and cost effectively down-select remediation options. This study evaluates the use of a fugacity model as a tool for estimating phase distribution and bioavailability of mixed organic compounds in compost. The model is compared to field-scale composting data to validate model predictions. Fugacity calculations show that the initial mass distribution of 17 semi-volatile and volatile chemicals during a 30 day compost period is predominantly to the organic composting solids and NAPL phase compartments with a lesser distribution to the aqueous phase suggesting limited bioavailability of target compounds. A fugacity level 1 phase distribution model is therefore a useful screening tool for identifying composting limitations and engineering improvements needed for successful treatment of mixed organic compounds.

Abstract| Introduction| Materials and Methods| Results| Discussion| Conclusion| References|