Journal of Advanced Informatics in Water, Soil, and Structure

Journal of Advanced Informatics in Water, Soil, and Structure

Study of the Process of Contaminant Transport and Pumping in a Laboratory Model

Document Type : Research Article

Authors
Mohammad Javad Zeynali 1
Mohammad Nazeri Tahroudi 2
Omolbani Mohammadrezapour 3
1 Department of Civil Engineering and Architecture, University of Torbat Heydarieh, Torbat Heydarieh, Iran.
2 Department. of Water Engineering, Lurestan University, Khoarramabad, Iran.
3 Department of Water Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
10.22048/wss.2024.468425.1012
Abstract
In this research, the objective is to study the process of contaminant transport and pumping in a laboratory model. A two-dimensional laboratory model was used in this research. The length, width, and height of the model respectively were 140 cm, 5 cm, and 57 cm. Chambers were provided on the left and right sides of the model to store water and create a constant hydraulic head. The material used in this model was glass beads, which act similarly to sand particles. Sampling tubes were installed at five points A to E along the length of the model and at three depths. Finally, at specific times after the contaminant release, a sample of the contaminant was injected and its concentration was analyzed. The research results showed that at a gradient of 0.05, the contaminant transport rate was significantly higher than at a gradient of 0.014. Therefore, the depth penetration of the contaminant is less at a gradient of 0.05 than at a gradient of 0.14. On the other hand, contaminant pumping at points C2 and D2 showed that pumping from point C2 more effectively reduced the contaminant concentration in the entire laboratory model. This holds for contaminants with other concentrations as well. Contaminant concentration and hydraulic gradient are two important factors in the amount of contaminant transport. Also, for effective contaminant pumping, the best location for pumping contaminated water is somewhere near the seepage site and in the path of the contaminant movement.
Keywords
Contaminant
Laboratory Model
Pumping
Seepage
Transport
Subjects
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  • Receive Date 18 March 2025
  • Revise Date 19 April 2025
  • Accept Date 20 May 2025
  • First Publish Date 20 May 2025
  • Publish Date 28 May 2025