A Simplified Approach of Pumping Rate Optimization for Production Wells to Mitigate Saltwater Intrusion: A Case Study in Vinh Hung District, Long An Province, Vietnam

In the investigation of optimal groundwater extraction in coastal regions, conventional assumptions typically revolve around unconfined aquifers with specified boundary conditions. In such cases, intricate solutions for groundwater management have been documented. However, within extensive delta pla...

Full description

Saved in:
Bibliographic Details
Main Authors: Pham Quy Nhan, Dang Tran Trung, Tran Thanh Le, Nguyen Kim Hung, Pham Minh Hoang, Tran Duc Thinh
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Hydrology
Subjects:
Online Access:https://www.mdpi.com/2306-5338/11/11/185
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1850145415321616384
author Pham Quy Nhan
Dang Tran Trung
Tran Thanh Le
Nguyen Kim Hung
Pham Minh Hoang
Tran Duc Thinh
author_facet Pham Quy Nhan
Dang Tran Trung
Tran Thanh Le
Nguyen Kim Hung
Pham Minh Hoang
Tran Duc Thinh
author_sort Pham Quy Nhan
collection DOAJ
description In the investigation of optimal groundwater extraction in coastal regions, conventional assumptions typically revolve around unconfined aquifers with specified boundary conditions. In such cases, intricate solutions for groundwater management have been documented. However, within extensive delta plains, the extraction wells are frequently drilled in confined aquifers with not much variable-density flow. This circumstance, characterized by paleo-saltwater intrusion, is further complicated by the placement of wells at a considerable distance from the coastal line. As a result, the design and implementation of groundwater supply systems in these areas necessitate strategic groundwater management to optimize groundwater utilization while mitigating the potential risk of saltwater intrusion. Analytical solutions and an optimization problem approach have been applied to address this challenge and solve the differential equations governing confined aquifers with salt–freshwater interfaces. These methodologies provide simplified yet dependable conditions tailored to the study area. A case study conducted in Vinh Hung district, Long An province, is focused on determining the optimal pumping rate for production wells to forestall saltwater intrusion during groundwater extraction. Here, the focus is on the migration of older saltwater towards inland pumped wells, rather than the influence of recent seawater encroachment. The findings contribute valuable insights into achieving an equilibrium between maximizing groundwater utilization and preventing saltwater intrusion in the aquifer systems by a simplified approach.
format Article
id doaj-art-208d0c2aa8c24c8caae45c0c5ac68087
institution OA Journals
issn 2306-5338
language English
publishDate 2024-10-01
publisher MDPI AG
record_format Article
series Hydrology
spelling doaj-art-208d0c2aa8c24c8caae45c0c5ac680872025-08-20T02:28:06ZengMDPI AGHydrology2306-53382024-10-01111118510.3390/hydrology11110185A Simplified Approach of Pumping Rate Optimization for Production Wells to Mitigate Saltwater Intrusion: A Case Study in Vinh Hung District, Long An Province, VietnamPham Quy Nhan0Dang Tran Trung1Tran Thanh Le2Nguyen Kim Hung3Pham Minh Hoang4Tran Duc Thinh5Faculty of Water Resources, Hanoi University of Natural Resources and Environment, 41A Phu Dien Str., North Tu Liem District, Hanoi 10000, VietnamNational Center for Water Resources Planning and Investigation, MONRE, Sai Dong Ward, Long Bien District, Hanoi 10000, VietnamFaculty of Water Resources, Hanoi University of Natural Resources and Environment, 41A Phu Dien Str., North Tu Liem District, Hanoi 10000, VietnamNational Center for Water Resources Planning and Investigation, MONRE, Sai Dong Ward, Long Bien District, Hanoi 10000, VietnamVietnam Academy of Science and Technology, University of Science and Technology of Hanoi (USTH), A21 Building, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, VietnamNational Center for Water Resources Planning and Investigation, MONRE, Sai Dong Ward, Long Bien District, Hanoi 10000, VietnamIn the investigation of optimal groundwater extraction in coastal regions, conventional assumptions typically revolve around unconfined aquifers with specified boundary conditions. In such cases, intricate solutions for groundwater management have been documented. However, within extensive delta plains, the extraction wells are frequently drilled in confined aquifers with not much variable-density flow. This circumstance, characterized by paleo-saltwater intrusion, is further complicated by the placement of wells at a considerable distance from the coastal line. As a result, the design and implementation of groundwater supply systems in these areas necessitate strategic groundwater management to optimize groundwater utilization while mitigating the potential risk of saltwater intrusion. Analytical solutions and an optimization problem approach have been applied to address this challenge and solve the differential equations governing confined aquifers with salt–freshwater interfaces. These methodologies provide simplified yet dependable conditions tailored to the study area. A case study conducted in Vinh Hung district, Long An province, is focused on determining the optimal pumping rate for production wells to forestall saltwater intrusion during groundwater extraction. Here, the focus is on the migration of older saltwater towards inland pumped wells, rather than the influence of recent seawater encroachment. The findings contribute valuable insights into achieving an equilibrium between maximizing groundwater utilization and preventing saltwater intrusion in the aquifer systems by a simplified approach.https://www.mdpi.com/2306-5338/11/11/185pumping rate optimizationsaltwater intrusiongroundwater extractionsimplified approachLong An provinceVietnam
spellingShingle Pham Quy Nhan
Dang Tran Trung
Tran Thanh Le
Nguyen Kim Hung
Pham Minh Hoang
Tran Duc Thinh
A Simplified Approach of Pumping Rate Optimization for Production Wells to Mitigate Saltwater Intrusion: A Case Study in Vinh Hung District, Long An Province, Vietnam
Hydrology
pumping rate optimization
saltwater intrusion
groundwater extraction
simplified approach
Long An province
Vietnam
title A Simplified Approach of Pumping Rate Optimization for Production Wells to Mitigate Saltwater Intrusion: A Case Study in Vinh Hung District, Long An Province, Vietnam
title_full A Simplified Approach of Pumping Rate Optimization for Production Wells to Mitigate Saltwater Intrusion: A Case Study in Vinh Hung District, Long An Province, Vietnam
title_fullStr A Simplified Approach of Pumping Rate Optimization for Production Wells to Mitigate Saltwater Intrusion: A Case Study in Vinh Hung District, Long An Province, Vietnam
title_full_unstemmed A Simplified Approach of Pumping Rate Optimization for Production Wells to Mitigate Saltwater Intrusion: A Case Study in Vinh Hung District, Long An Province, Vietnam
title_short A Simplified Approach of Pumping Rate Optimization for Production Wells to Mitigate Saltwater Intrusion: A Case Study in Vinh Hung District, Long An Province, Vietnam
title_sort simplified approach of pumping rate optimization for production wells to mitigate saltwater intrusion a case study in vinh hung district long an province vietnam
topic pumping rate optimization
saltwater intrusion
groundwater extraction
simplified approach
Long An province
Vietnam
url https://www.mdpi.com/2306-5338/11/11/185
work_keys_str_mv AT phamquynhan asimplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT dangtrantrung asimplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT tranthanhle asimplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT nguyenkimhung asimplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT phamminhhoang asimplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT tranducthinh asimplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT phamquynhan simplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT dangtrantrung simplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT tranthanhle simplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT nguyenkimhung simplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT phamminhhoang simplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam
AT tranducthinh simplifiedapproachofpumpingrateoptimizationforproductionwellstomitigatesaltwaterintrusionacasestudyinvinhhungdistrictlonganprovincevietnam