T2VOC

T2VOC is a TOUGH2 module for 3-phase flow of water, air, and a volatile organic compound (VOC). T2VOC was designed to simulate processes such as the migration of hazardous non-aqueous phase liquids (NAPLs) in variably saturated media, forced vacuum extraction of organic chemical vapors from the unsaturated zone (soil vapor extraction), evaporation and diffusion of chemical vapors in the unsaturated zone, air injection into the saturated zone for removal of volatile organics (air sparging), direct pumping of contaminated water and free product, and steam injection for the removal of NAPLs from contaminated soils and aquifers.

For successful applications of T2VOC, users are urged to peruse the T2VOC User's Guide (Falta, Pruess, Finsterle and Battistelli, 1995). The user's guide includes a description of the physical processes modeled by T2VOC, and a summary of mathematical model and numerical methods used. It also provides a complete reference to the preparation of input data, and presents a number of sample problems that can serve as a guide for the development of new applications. A READ ME file is available with instructions for code installation and application.

Click here to download a copy of the T2VOC User's Guide (LBL_36400; 1.1 MB pdf-file).

With the release of Version 2.0 of TOUGH2, T2VOC has been integrated with the remainder of TOUGH2 into a single program package for "forward" modeling.

In May 2002, a more powerful successor to T2VOC known as TMVOC was released, which can handle multi-component VOCs. Click here for technical and licensing information for TMVOC.

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