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Title: Optimizing multiphase aquifer remediation using ITOUGH2

The T2VOC computer model for simulating the transport of organic chemical contaminants in non-isothermal multiphase systems has been coupled to the ITOUGH2 code which solves parameter optimization problems. This allows one to use nonlinear programming and simulated annealing techniques to solve groundwater management problems, i.e. the optimization of multiphase aquifer remediation. This report contains three illustrative examples to demonstrate the optimization of remediation operations by means of simulation-minimization techniques. The code iteratively determines an optimal remediation strategy (e.g. pumping schedule) which minimizes, for instance, pumping and energy costs, the time for cleanup, and residual contamination. While minimizing the objective function is straightforward, the relative weighting of different performance measures--e.g. pumping costs versus cleanup time versus residual contaminant content--is subject to a management decision process. The intended audience of this report is someone who is familiar with numerical modeling of multiphase flow of contaminants, and who might actually use T2VOC in conjunction with ITOUGH2 to optimize the design of aquifer remediation operations.
Authors:
;  [1]
  1. Lawrence Berkeley Lab., CA (United States). Earth Sciences Div.
Publication Date:
OSTI Identifier:
10104347
Report Number(s):
LBL--36088
ON: DE95004817;; TRN: AHC29502%%45
DOE Contract Number:
AC03-76SF00098
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jun 1994
Research Org:
Lawrence Berkeley Lab., CA (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; AQUIFERS; REMEDIAL ACTION; COMPUTER-AIDED DESIGN; I CODES; ORGANIC COMPOUNDS; ENVIRONMENTAL TRANSPORT; GROUND WATER; CLEANING; MULTIPHASE FLOW; ENERGY CONSERVATION; FLOW MODELS; T CODES; COST ESTIMATION; XYLENES; REMOVAL; EXPERIMENTAL DATA 540250; SITE RESOURCE AND USE STUDIES