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Updated: Jun 5, 2025

Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
Published on: December 9, 2012
Influence of process parameters on the operation effectiveness of groundwater circulation well and multi-objective
Shaoyin Chen1, Zixuan Huang1, Rui Zhou1
1Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, 130021, China; Jilin Provincial Key Laboratory of Water Resources and Water Environment, Jilin University, 130021, China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, Jilin University, Changchun 130021, China.
Abstract:
The operation effectiveness of groundwater remediation using groundwater circulation well (GCW) technology is influenced by various process parameters. Currently, there is no uniform standard for the design of structure parameters and hydrodynamic control parameters of GCW to optimize the operation performance. This study discusses the influence of well structure, including screen position and screen length, as well as hydrodynamic control parameters, including flow rate and circulation method, on the operation effectiveness of GCW with a two-dimensional laboratory-scale GCW system and physical experiments. The entropy weight TOPSIS method is used to optimize the design of multi-objective problems. The proposed optimization design strategy considers maximizing influence radius, influence area, and pollutant removal rate as optimization objectives while minimizing the remediation time. The results suggest that the optimal process parameters are a screen length of 3 cm, a distance of 17.5 cm between the middle of the lower screen and the top of the impermeable layer, using the standard circulation method, and a flow rate of 12 L/h. This study presents a theoretical workflow for designing parameters for the GCW process and supports the practical application of GCW technology.
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