IRP, Aerobic Cometabolic In Situ Bioremediation Technology Guidance Manual and Screening Software User's Guide

摘要

Trichioroethene (TCE) is the most commonly detected contaminant at Super fund sites in the U.S.. It has been widely used for degreasing and cleaning activities. TCE was commonly discharged to the environment for disposal purposes. In recent years, the hazards of exposure to TCE and other chlorinated aliphatic hydrocarbons (CAHs) have been documented. These compounds can pose a serious threat to human health or the environment. Aerobic cometabolic in situ bioremediation is an innovative technology being used for treatment of groundwater contaminated with CAHs, especially TCE. This document presents the principles of aerobic cometabolic in situ bioremediation as well as mathematical models used describe the technology and a discussion of its applicability and limitations. A section of this document describes a software program that can help determine if this technology is appropriate for implementation. The steps needed to design and implement the technology, based upon results of a full- scale evaluation at Edwards AFB, CA, are also presented. The document concludes with a discussion surrounding regulatory acceptance the technology and a description of case studies where the technology has been implemented in the field. This document is designed for use by project managers not necessarily experienced in treatment technology design who are exploring potential technology alternatives for groundwater treatment.