Groundwater geochemistry and hydrogeochemical processes assessment in Bantul, Yogyakarta, Indonesia

In Bantul, Southern Yogyakarta, groundwater is the main source of domestic water needs. Therefore, knowing the hydrogeochemistry of groundwater is crucial in order to manage a sustainable groundwater resource. To characterize the compelling geochemical processes that control the groundwater chemistr...

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Main Authors: Ratri, D., Putra, D. P. E., Wilopo, W.
Format: Conference or Workshop Item
Language:English
Published: 2022
Subjects:
Online Access:https://repository.ugm.ac.id/278992/1/Groundwater%20geochemistry%20and%20hydrogeochemical%20processes%20assessment%20in%20Bantul%2C%20Yogyakarta%2C%20Indonesia.pdf
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author Ratri, D.
Putra, D. P. E.
Wilopo, W.
author_facet Ratri, D.
Putra, D. P. E.
Wilopo, W.
author_sort Ratri, D.
collection UGM
description In Bantul, Southern Yogyakarta, groundwater is the main source of domestic water needs. Therefore, knowing the hydrogeochemistry of groundwater is crucial in order to manage a sustainable groundwater resource. To characterize the compelling geochemical processes that control the groundwater chemistry, further hydrogeochemical examinations were directed in the area. Thirty groundwater samples were collected from shallow dug wells during the early dry season (April 2021). Sampling procedures and chemical analysis were carried out as per standard methods with secondary data obtained in 2006. The geochemical evaluations were depicted using several graphical plots dependent on the ionic constituents, hydrochemical facies, and controlling factors of groundwater quality. Two major hydrochemical facies were identified: alkaline-earth water with higher alkali; bicarbonate predominated (62%) and alkaline-earth water; bicarbonate predominated (32%). Weathering of silicate minerals occurs in 70% of recent samples and predominantly regulates major ion chemistry such as calcium, magnesium, sodium, and potassium. Chloro-alkaline indices 1,2 values signify that there are two potential rock-water interaction processes in the study region, namely the ion exchange and reverse ion exchange. Concentrations of nitrate, sulfate, and chloride indicate that the water chemistry has not been heavily contaminated by the land use in the area and is still mainly controlled by geogenic processes rather than anthropogenic activities.
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spelling oai:generic.eprints.org:2789922023-10-26T08:08:14Z https://repository.ugm.ac.id/278992/ Groundwater geochemistry and hydrogeochemical processes assessment in Bantul, Yogyakarta, Indonesia Ratri, D. Putra, D. P. E. Wilopo, W. Engineering In Bantul, Southern Yogyakarta, groundwater is the main source of domestic water needs. Therefore, knowing the hydrogeochemistry of groundwater is crucial in order to manage a sustainable groundwater resource. To characterize the compelling geochemical processes that control the groundwater chemistry, further hydrogeochemical examinations were directed in the area. Thirty groundwater samples were collected from shallow dug wells during the early dry season (April 2021). Sampling procedures and chemical analysis were carried out as per standard methods with secondary data obtained in 2006. The geochemical evaluations were depicted using several graphical plots dependent on the ionic constituents, hydrochemical facies, and controlling factors of groundwater quality. Two major hydrochemical facies were identified: alkaline-earth water with higher alkali; bicarbonate predominated (62%) and alkaline-earth water; bicarbonate predominated (32%). Weathering of silicate minerals occurs in 70% of recent samples and predominantly regulates major ion chemistry such as calcium, magnesium, sodium, and potassium. Chloro-alkaline indices 1,2 values signify that there are two potential rock-water interaction processes in the study region, namely the ion exchange and reverse ion exchange. Concentrations of nitrate, sulfate, and chloride indicate that the water chemistry has not been heavily contaminated by the land use in the area and is still mainly controlled by geogenic processes rather than anthropogenic activities. 2022-01-06 Conference or Workshop Item PeerReviewed application/pdf en https://repository.ugm.ac.id/278992/1/Groundwater%20geochemistry%20and%20hydrogeochemical%20processes%20assessment%20in%20Bantul%2C%20Yogyakarta%2C%20Indonesia.pdf Ratri, D. and Putra, D. P. E. and Wilopo, W. (2022) Groundwater geochemistry and hydrogeochemical processes assessment in Bantul, Yogyakarta, Indonesia. In: The 7th International Conference on Water Resource and Environment (WRE 2021) IOP Conf. Series: Earth and Environmental Science, 1-4 November 2021, China. https://iopscience.iop.org/article/10.1088/1755-1315/958/1/012013
spellingShingle Engineering
Ratri, D.
Putra, D. P. E.
Wilopo, W.
Groundwater geochemistry and hydrogeochemical processes assessment in Bantul, Yogyakarta, Indonesia
title Groundwater geochemistry and hydrogeochemical processes assessment in Bantul, Yogyakarta, Indonesia
title_full Groundwater geochemistry and hydrogeochemical processes assessment in Bantul, Yogyakarta, Indonesia
title_fullStr Groundwater geochemistry and hydrogeochemical processes assessment in Bantul, Yogyakarta, Indonesia
title_full_unstemmed Groundwater geochemistry and hydrogeochemical processes assessment in Bantul, Yogyakarta, Indonesia
title_short Groundwater geochemistry and hydrogeochemical processes assessment in Bantul, Yogyakarta, Indonesia
title_sort groundwater geochemistry and hydrogeochemical processes assessment in bantul yogyakarta indonesia
topic Engineering
url https://repository.ugm.ac.id/278992/1/Groundwater%20geochemistry%20and%20hydrogeochemical%20processes%20assessment%20in%20Bantul%2C%20Yogyakarta%2C%20Indonesia.pdf
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AT putradpe groundwatergeochemistryandhydrogeochemicalprocessesassessmentinbantulyogyakartaindonesia
AT wilopow groundwatergeochemistryandhydrogeochemicalprocessesassessmentinbantulyogyakartaindonesia