Assessing drainage water quality for irrigation using the water quality index and DataFit software
In this research, the quality of drainage water was studied by using the water quality index (WQI). Water samples were taken from the Al-Dujaila River and Al-Dujaila drainage. Drainage water was diluted to different ratios with river water to decrease its salinity and increase its potential for agri...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-06-01
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| Series: | Water Supply |
| Subjects: | |
| Online Access: | http://ws.iwaponline.com/content/23/6/2349 |
| _version_ | 1797783032431640576 |
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| author | Basima Abbas Jabir Al-humairi Nadhum Shamkhi Rahal |
| author_facet | Basima Abbas Jabir Al-humairi Nadhum Shamkhi Rahal |
| author_sort | Basima Abbas Jabir Al-humairi |
| collection | DOAJ |
| description | In this research, the quality of drainage water was studied by using the water quality index (WQI). Water samples were taken from the Al-Dujaila River and Al-Dujaila drainage. Drainage water was diluted to different ratios with river water to decrease its salinity and increase its potential for agricultural uses. The diluted samples contained between 0 and 100% drainage water, and between 100 and 0% river water, in 10% steps – i.e., 0:10, 1:9, 2:8, 3:7, 4:6, 9:1, 8:2, 7:3, 6:4, and 5:5. After dilution of water, chemical properties, ion activities, electrical conductivity (EC), soil reaction (pH), sodium (Na+), calcium (Ca+2), magnesium (Mg+2), and total dissolved solid (TDS)) were measured in the laboratory of the University of Wasit/College of Agriculture, for computing the drainage water quality index (DWQI), sodium adsorption ratio (SAR), exchangeable sodium percentage (ESP), and soluble magnesium percentage (Mg%). Mathematical models were generated to predict the DWQI using DataFit software, depending on the water's chemical properties, and to find the best dilution ratio, which was 9:1. Model 2 includes the DWQI with SAR, ESP gave the best results (R2 = 99.99%, relative error (RE) = 0.0007, mean absolute error (MAE) = 0.425, root mean square error (RMSE) = 0.6, and standard error of estimate (SEE) = 1.992). The diluted drainage water used in this study was not suitable for either irrigation or human use.
HIGHLIGHTS
Quality of diluted drainage water.;
DWQI, SAR, ESP, and Mg%.;
Mathematical models and DataFit software to predict DWQI, and determine the best dilution ratio.; |
| first_indexed | 2024-03-13T00:20:21Z |
| format | Article |
| id | doaj.art-648df764fa654076a84f293a666731d5 |
| institution | Directory Open Access Journal |
| issn | 1606-9749 1607-0798 |
| language | English |
| last_indexed | 2024-03-13T00:20:21Z |
| publishDate | 2023-06-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Supply |
| spelling | doaj.art-648df764fa654076a84f293a666731d52023-07-11T16:32:15ZengIWA PublishingWater Supply1606-97491607-07982023-06-012362349235810.2166/ws.2023.131131Assessing drainage water quality for irrigation using the water quality index and DataFit softwareBasima Abbas Jabir Al-humairi0Nadhum Shamkhi Rahal1 Middle Technical University, Kut Technical Institute, Baghdad, Iraq Middle Technical University, Suwaira Technical Institute, Baghdad, Iraq In this research, the quality of drainage water was studied by using the water quality index (WQI). Water samples were taken from the Al-Dujaila River and Al-Dujaila drainage. Drainage water was diluted to different ratios with river water to decrease its salinity and increase its potential for agricultural uses. The diluted samples contained between 0 and 100% drainage water, and between 100 and 0% river water, in 10% steps – i.e., 0:10, 1:9, 2:8, 3:7, 4:6, 9:1, 8:2, 7:3, 6:4, and 5:5. After dilution of water, chemical properties, ion activities, electrical conductivity (EC), soil reaction (pH), sodium (Na+), calcium (Ca+2), magnesium (Mg+2), and total dissolved solid (TDS)) were measured in the laboratory of the University of Wasit/College of Agriculture, for computing the drainage water quality index (DWQI), sodium adsorption ratio (SAR), exchangeable sodium percentage (ESP), and soluble magnesium percentage (Mg%). Mathematical models were generated to predict the DWQI using DataFit software, depending on the water's chemical properties, and to find the best dilution ratio, which was 9:1. Model 2 includes the DWQI with SAR, ESP gave the best results (R2 = 99.99%, relative error (RE) = 0.0007, mean absolute error (MAE) = 0.425, root mean square error (RMSE) = 0.6, and standard error of estimate (SEE) = 1.992). The diluted drainage water used in this study was not suitable for either irrigation or human use. HIGHLIGHTS Quality of diluted drainage water.; DWQI, SAR, ESP, and Mg%.; Mathematical models and DataFit software to predict DWQI, and determine the best dilution ratio.;http://ws.iwaponline.com/content/23/6/2349drainage waterdwqiespsarstatistical analysis |
| spellingShingle | Basima Abbas Jabir Al-humairi Nadhum Shamkhi Rahal Assessing drainage water quality for irrigation using the water quality index and DataFit software Water Supply drainage water dwqi esp sar statistical analysis |
| title | Assessing drainage water quality for irrigation using the water quality index and DataFit software |
| title_full | Assessing drainage water quality for irrigation using the water quality index and DataFit software |
| title_fullStr | Assessing drainage water quality for irrigation using the water quality index and DataFit software |
| title_full_unstemmed | Assessing drainage water quality for irrigation using the water quality index and DataFit software |
| title_short | Assessing drainage water quality for irrigation using the water quality index and DataFit software |
| title_sort | assessing drainage water quality for irrigation using the water quality index and datafit software |
| topic | drainage water dwqi esp sar statistical analysis |
| url | http://ws.iwaponline.com/content/23/6/2349 |
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