Hydrogeology Journal

, Volume 20, Issue 3, pp 575–589 | Cite as

Hydraulic analysis of a radial collector well for riverbank filtration near Nakdong River, South Korea

  • Eunhee Lee
  • Yunjung Hyun
  • Kang-Kun Lee
  • Jiyoun Shin
Report
First Online:
Received:
Accepted:

Abstract

A radial collector well is used for the extraction of a large amount of groundwater without causing a deep drawdown at the well’s center, and it is appropriate for the supply of municipal water through riverbank filtration (RBF). Flow path changes caused by water extraction through a radial collector well were simulated to estimate the amount of river water induction at a RBF site associated with Nakdong River in South Korea. The structure of the screened horizontal arms of a radial collector well was examined with respect to effective riverbank filtration. The relative ratio of the river water induced to the radial collector well compared to the total groundwater extraction was estimated to be 27–52%. The amount of induced river water varies with the distance of a horizontal arm from the river, indicating that the location and structure of the collector well is significant for RBF. In all simulation cases, the maximum drawdown of the groundwater level near the collector well was 2.1 m, which is not significant considering the substantial pumping rate at the study site. It was concluded that RBF radial collector wells can be used at the study site for a sustainable water supply.

Keywords

Groundwater/surface-water relations Riverbank filtration Radial collector well Numerical modeling South Korea 

Analyse hydraulique d’un puits à drains rayonnants pour de la filtration sur berge à proximité de la rivière Nakdong, Corée du Sud

Résumé

Les puits à drains rayonnants sont utilisés pour produire de grandes quantités d’eau souterraine sans occasionner de rabattements importants au niveau des puits. Ces puits conviennent pour l’alimentation en eau d’une municipalité via une filtration sur berge (RBF pour riverbank filtration). Les modifications des écoulements causées par les prélèvements dans un puits à drains rayonnants ont été simulées en vue d’estimer la part des eaux de surface drainées sur un site de RBF sur la rivière Nakdong en Corée du Sud. La structure des drains horizontaux crépinés d’un puits à drains rayonnants a été étudiée par rapport à la filtration effective à travers les berges. Le rapport des eaux de surface drainées vers le puits à drains rayonnants sur le total des eaux souterraines pompées a été estimé entre 27 et 52%. La quantité d’eau de surface incorporée varie avec la distance du drain horizontal à la rivière, ce qui montre que la position et la structure du puits sont importantes pour la RBF. Pour chacune des simulations, le rabattement maximum du niveau des eaux souterraines à proximité du puits était de 2.1 m, valeur peu significative au regard du très grand débit de pompage sur le site étudié. Il en a été conclu que les puits à drains rayonnants associés à de la RBF pouvaient être durablement utilisés sur ce site pour l’alimentation en eau.

Análisis hidráulico de un pozo colector radial por la filtración de la margen del río cerca del Río Nakdong, Corea del Sur

Resumen

Se usó un pozo colector radial para la extracción de una gran cantidad de agua subterránea sin causar un descenso profundo en el pozo del centro, y es apropiado porque el abastecimiento de agua municipal a través de la filtración de la margen del río (RBF). Se simularon los cambios en la trayectoria de flujo causados por la extracción de agua a través de un pozo colector radial para estimar la cantidad de la inducción del agua del río en un sitio RBF asociado con el Río Nakdong en Corea del Sur. Se examinó las estructuras de los drenes horizontales de un pozo colector radial con respecto a la filtración efectiva de la margen del río. El cociente relativo del agua del río inducida por el pozo colector radial comparado con el total de la extracción de agua subterránea se estimó en 27–52%. La cantidad de agua del río inducida varía con la distancia del dren horizontal a partir del río, indicando que la ubicación y estructura del pozo colector es significativa para el RBF. En todos los casos de simulación, el descenso máximo del nivel de agua subterránea próxima al pozo colector fue 2.1 m, lo cual no es significativo considerando el ritmo sustancial de bombeo en el sitio de estudio. Se concluyó que los pozos colectores radiales RBF pueden ser usados en el sitio de estudio para un abastecimiento de agua sustentable.

韩国Nakdong傍河取水的放射状集水井水力学分析

摘要

放射性集水井可用于抽取大量地下水而不会在井中心引起大降深,适用于傍河取水(RBF)的市政供水。通过对放射性集水井中抽水引起的流程变化的模拟估计韩国Nakdong 河RBF点诱发的河水补给量。针对有效河堤过滤对放射性集水井筛过的水平通道结构进行检查。河水诱发补给放射性集水井的相对于完全地下水开采的相对比估计为27–52%。诱发河水量随着水平通道与河的距离变化,表明集水井的位置和结构对RBF而言非常重要。在所有的模拟情景下,靠近集水井的地下水位的最大降深为2.1m,若考虑到研究区较大的抽水速率,并不显著。因此结论为RBF放射性集水井可用于研究区的持续供水。

Análise hidráulica de um poço coletor radial para filtragem de margem do rio perto do Rio Nakdong, Coreia do Sul

Resumo

Um poço coletor radial é utilizado para a extração de uma grande quantidade de água subterrânea sem causar um rebaixamento profundo no centro do poço, e é apropriado para o abastecimento municipal de água através de bancos filtrantes na margem do rio (Riverbank Filtration, RBF). Simularam-se as alterações nas direções de escoamento devido à extração de água a partir de um poço coletor radial para estimar a quantidade de indução de água do rio num local de RBF associado ao Rio Nakdong, na Coreia do Sul. Examinou-se a estrutura dos drenos horizontais ranhurados de um poço coletor radial em relação à filtragem efetiva da margem do rio. A razão relativa da água do rio induzida para o poço coletor radial comparada com a extração total foi estimada em 27-52%. A quantidade de água do rio induzida varia com a distância de um dreno horizontal ao rio, o que indica que a localização e a estrutura do poço coletor é significativa para a RBF. Em todos os casos simulados, o rebaixamento máximo do nível de águas subterrâneas junto ao poço coletor foi de 2.1 m, o que não é significativo, considerando o caudal substancial de bombagem no local de estudo. Concluiu-se que os poços coletores radiais RBF podem ser utilizados no local de estudo para um abastecimento de água sustentável.

This is a preview of subscription content, log in to check access.

Notes

Acknowledgements

This study was supported by the Basic Science Research Program through the National Research foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (grant no. 2011-0001120) and the 21st Century Frontier Research Program of the Sustainable Water Resources Research Center. The numerical modeling efforts regarding the massive pump and treat system was partly supported by the Korea Ministry of Environment as “The GAIA Project” (173-092-009).

References

  1. Abdel-Fattah A, Langford R, Schulze-Makuch D (2008) Applications of particle-tracking techniques to bank infiltration: a case study from El Paso, Texas. USA Env Geol. doi: 10.1007/s00254-007-0996-z
  2. Bakker M, Kelson VA, Luther KH (2005) Multilayer analytic element modeling of radial collector wells. Ground Water. doi: 10.1111/j.1745-6584.2005.00116.x
  3. Cheong JY, Hamm SY, Kim HS, Ko EJ, Yang K, Lee JH (2008) Estimating hydraulic conductivity using grain-size analyses, aquifer test, and numerical modeling in a riverside alluvial system in South Korea. Hydrogeol J. doi: 10.1007/s10040-008-0303-4
  4. Dash RR, Bhanu Prakash EVP, Kumar P, Mehrotra I, Sandhu C, Grischek T (2010) River bank filtration in Haridwar, India: removal of turbidity, organics and bacteria. Hydrogeol J. doi: 10.1007/s10040-010-0574-4
  5. Hamm SY, Jung JY, Kim HS, Hahn JS, Cha YH (2005) Groundwater flow modeling in a riverbank infiltration area, Daesan-Myeon, Changwon-si. Econ Env Geol 38:67–78Google Scholar
  6. Hantush MS (1965) Wells near stream with semipervious beds. J Geophys Res 70:2829–2838CrossRefGoogle Scholar
  7. Hantush MS, Papadopulos IS (1962) Flow of groundwater to collector wells. J Hydraul Div Proc Am Soc Civ Eng 88:221–244Google Scholar
  8. Hunt B (1999) Unsteady stream depletion from groundwater pumping. Ground water 37:98–102CrossRefGoogle Scholar
  9. Kim HS (2004) Sustainable groundwater development and artificial recharge. Rep. KIWE-GG-04-1, 21C Frontier R&D Program of Sustainable Water Resources Research, Korea Water Resources Corporation, Daejeon, KoreaGoogle Scholar
  10. Lee JH, Hamm SY, Cheong JY, Kim HS, Ko EJ, Lee KS, Lee SI (2009) Characterizing riverbank-filtered water and river water qualities at a site in lower Nakdong River basin, Republic of Korea. J Hydrol. doi: 10.1016/j.jhydrol.2009.07.030
  11. Lee E, Hyun Y, Lee KK, Kim HS, Jeong JH (2010a) Evaluation of well production by a riverbank filtration facility with radial collector well system in Jeungsan-ri, Changnyeong gun, Korea. J Korean Soc Soil Groundw Env 15:1–12Google Scholar
  12. Lee E, Hyun Y, Lee KK (2010b) Numerical modeling of groundwater flow into a radial collector well with horizontal arms. Geosci J. doi: 10.1007/s12303-010-0037-x
  13. Ludwig U, Grischek T, Nestler W, Neumann V (1997) Behaviour of different molecular-weight fractions of DOC of Elbe River water during river bank infiltration. Acta Hydrochim Hydrobiol 25:145–150CrossRefGoogle Scholar
  14. Mohamed A, Rushton K (2006) Horizontal wells in shallow aquifers: field experiment and numerical model. J Hydrol. doi: 10.1016/j.jhydrol.2006.02.006
  15. Moutsopoulos KN, Gemitzi A, Tsihrintzis VA (2008) Delineation of groundwater protection zones by the backward particle tracking method: theoretical background and GIS-based stochastic analysis. Environ Geol. doi: 10.1007/s00254-007-0879-3
  16. Munson BR, Young DF, Okiishi TH (1999) Fundamentals of fluid mechanics, 3rd edn. Wiley, New York, 877 ppGoogle Scholar
  17. Ray C, Soong TW, Lian YQ, Roadcap GS (2002) Effect of flood-induced chemical load on filtrate quality at bank filtration sites. J Hydrol. doi: 10.1016/S0022-1694(02)00168-3
  18. Shankar V, Eckert P, Ojha C, König CM (2009) Transient three-dimensional modeling of riverbank filtration at Grind well field, Germany. Hydrogeol J. doi: 10.1007/s10040-008-0356-4
  19. Sohpocleous M, Koussis A, Martin JL, Perkins SP (1995) Evaluation of simplified stream-aquifer depletion models for water rights administration. Ground Water 33:579–588CrossRefGoogle Scholar
  20. Su G, Jasperse WJ, Seymour D, Constantz J, Zhou Q (2007) Analysis of pumping-induced unsaturated regions beneath a perennial river. Water Resour Res. doi: 10.1029/2006WR005389
  21. Sun D, Zhan H (2007) Pumping induced depletion from two streams. Adv Water Resour. doi: 10.1016/j.advwatres.2006.09.001
  22. Therrien R, McLaren RG, Sudicky EA, Panday SM (2005) HydroGeoSphere: a three-dimensional numerical model describing fully-integrated subsurface and surface flow and solute transport. User’s Guide, Groundwater Simulation Group, University of Waterloo, Waterloo, CanadaGoogle Scholar
  23. Verstraeten IM, Thurman EM, Lindsey ME, Lee EC, Smith RD (2002) Changes in concentrations of triazine and acetamide herbicides by bank filtration, ozonation, and chlorination in a public water supply. J Hydrol. doi: 10.1016S0022-1694(02)00163-4
  24. WAMIS (Water Management Information System) (2010) www.wamis.go.kr. Cited 12 Sep 2010
  25. Wang J (2002) Riverbank filtration case study at Louisville, Kentucky. Water Sci Technol Libr. doi: 10.1007/0-306-48154-5_8
  26. Zhan H, Zlotnik VA (2002) Groundwater flow to a horizontal or slanted well in an unconfined aquifer. Water Resour Res. doi: 10.1029/2001WR000401

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Eunhee Lee
    • 1
  • Yunjung Hyun
    • 2
  • Kang-Kun Lee
    • 1
  • Jiyoun Shin
    • 1
  1. 1.School of Earth and Environmental SciencesSeoul National UniversitySeoulSouth Korea
  2. 2.Korea Environment Institute (KEI)SeoulSouth Korea

Personalised recommendations