BIOCHLOR

Important Information

Potential Limitations of the Domenico-based Fate and Transport Models

Description

BIOCHLOR is a screening model that simulates remediation by natural attenuation of dissolved solvents at chlorinated solvent release sites. BIOCHLOR includes three different model types:

Solute transport without decay
Solute transport with biotransformation modeled as a sequential first-order decay process
Solute transport with biotransformation modeled as a sequential first-order decay process with two different reaction zones (i.e., each zone has a different set of rate coefficient values)

The software, programmed in the Microsoft Excel spreadsheet environment and based on the Domenico analytical solute transport model, has the ability to simulate one-dimensional advection, three-dimensional dispersion, linear adsorption, and biotransformation via reductive dechlorination (the dominant biotransformation process at most chlorinated solvent sites). Reductive dechlorination is assumed to occur under anaerobic conditions and dissolved solvent degradation is assumed to follow a sequential first-order decay process.

Specifications

Version	2.2
Release Date	June 2002
Development Status	general release
Development Information
Operating System	Windows 95/98/NT, Excel
Development Language
Intended Audience
Key Words
Related Web Sites

Minimum System Requirements

The BIOCHLOR model requires a computer system capable of running Microsoft Excel 97 or 2000 for Windows. Operation requires an IBM-compatible PC equipped with a Pentium II or later processor. A minimum of 64 MB of RAM is strongly recommended.

Downloads

Excel 2000 Version: User's manual, installation program, help files, and installation instructions (EXE) (2.3 MB)

Excel 97 Version: User's manual, installation program, help files, and installation instructions (EXE) (2.2 MB)

US EPA. (2000) "BIOCHLOR, Natural Attenuation Decision Support System – User’s Manual, Version 1.0." Publication No. EPA/600/R-00/008.

BIOCHLOR, Natural Attenuation Decision Support System, Version 2.2, User’s Manual Addendum (PDF) (13 pp, 492 KB)March 2002

Installation Instructions

Refer to the BIOCHLOR user's manual and the User's Manual Addendum further instructions.
Download BIOCHLOR22_2000.EXE or BIOCHLOR22_97.EXE to the desired location on your computer.
Run BIOCHLOR22.EXE either by selecting Run from the File menu in Program Manager or by double-clicking on the file BIOCHLOR22.EXE in File Manager (Windows 95/98 Explorer).
Follow the on-screen instructions.
Start the BIOCHLOR2.2 program by clicking Start on your desktop toolbar. Move to Programs and click BIOCHLOR22. You can also use Windows Explorer to open folder BIOCHLOR22 and double-click biochlor22.xls. A message box will ask whether you want to disable or enable the macros. You must enable the macros for BIOCHLOR to operate effectively.

You will need Adobe Reader to view some of the files on this page.
See EPA's PDF page to learn more.

Office of Research & Development | National Risk Management Research Laboratory