Numerical modeling of arsenic mobility - In-Situ Remediation of Arsenic-Contaminated Sites - page 38

Table 2.1. Continued.

Code Website Summary

RT3D http://bioprocess.

pnnl.gov/

RT3D (Clement, 1997) is a reactive transport code
based on MT3DMS. It extends the capabilities of
MT3DMS to solve arbitrary kinetic reaction problems.
RT3D provides a number of predefined reaction packages,
e.g., for biodegradation of oxidizable contaminants
consuming one or more electron acceptors and for
sequential decay chain-type reactions of chlorinated
hydrocarbons (CHCs).

SUTRA http://water.usgs.gov/

nrp/gwsoftware/sutra/
sutra.html

SUTRA (Saturated-Unsaturated Transport) is a
computer program that simulates fluid density-dependent
saturated or unsaturated groundwater flow and solute
transport. Solute transport includes conservative
transport, equilibrium adsorption, first-order and
zero-order production or decay and transport of
thermal energy in the groundwater and solid matrix of
the aquifer.

C: Coupled reactive transport models
CrunchFlow www.csteefel.com CrunchFlow is a code for multicomponent reactive flow

and transport, which can be used for simulation of a range
of processes, including reactive contaminant transport,
chemical weathering, carbon sequestration,
biogeochemical cycling, and water-rock interaction. It
features a wide range of biogeochemical processes and has
integrated flow and solute transport components.

HBGC123D http://hbgc.emsgi.

org/main.html

HBGC123D is a computer code for the simulation of
coupled hydrologic transport and biogeochemical kinetic
and/or equilibrium reactions in variably saturated media.

HP2 http://www.pc-

progress.com/en/
Default.aspx?h3d2-
HP2

HP2 (acronym for HYDRUS-PHREEQC-2D), is a
computer code, which couples Hydrus-2D/3D with the
PHREEQC geochemical code (Parkhurst and Appelo,
1999). HP2 contains modules simulating (1) transient
water flow, (2) the transport of multiple components,
(3) mixed equilibrium/kinetic biogeochemical reactions,
and (4) heat transport in two-dimensional
variably-saturated porous media (soils). The coupled
program can simulate a broad range of low-temperature
biogeochemical reactions in water, the vadose zone and in
groundwater systems, including interactions with
minerals, gases, exchangers and sorption surfaces based
on thermodynamic equilibrium, kinetic, or mixed
equilibrium-kinetic reactions.

MIN3P http://www.eos.ubc.

ca/research/hydro/
research/min3p/
reactive_tran_web.htm

MIN3P is a flow and reactive transport code for variably
saturated media. Advective-diffusive transport in the water
phase and diffusive transport in the gas phase are included.
The reaction network is designed to handle kinetic and
equilibrium controlled reactions, dissolution-precipitation

( continued )