Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution

The chemical characteristics of the Ciliwung River were analyzed to understand hydrochemical evolution. A fraction of sea water mixture and kinds of mineral controlling for chemicals were also determined. During three year investigations in 2015, 2016, and 2018, electrical conductivity increased wit...

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Autores principales:	Evarista Ristin Pujiindiyati, Paston Sidauruk, Tantowi Eko Prayogi, Faizal Abdillah
Formato:	article
Lenguaje:	EN
Publicado:	Department of Chemistry, Universitas Gadjah Mada 2020
Materias:	ciliwung river hydrochemical sea water mixture saturation index Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/1d827dc2992648fc83318a93c1f0f511
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spelling	oai:doaj.org-article:1d827dc2992648fc83318a93c1f0f5112021-12-02T12:03:36ZHydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution1411-94202460-157810.22146/ijc.50962https://doaj.org/article/1d827dc2992648fc83318a93c1f0f5112020-04-01T00:00:00Zhttps://jurnal.ugm.ac.id/ijc/article/view/50962https://doaj.org/toc/1411-9420https://doaj.org/toc/2460-1578The chemical characteristics of the Ciliwung River were analyzed to understand hydrochemical evolution. A fraction of sea water mixture and kinds of mineral controlling for chemicals were also determined. During three year investigations in 2015, 2016, and 2018, electrical conductivity increased with decreasing elevations. Two hydrochemical facies had been identified for the Ciliwung river water; those were Ca-Mg-HCO3 and Ca-Na-HCO3. The river water mixing with seawater was recognized in the Mangga Dua site in which its water type had shifted to Na-Ca-HCO3-Cl. Based on Na-Cl contents, the fraction of sea water into the Ciliwung River reached 2% in the Mangga Dua site during the dry season and decreased to 0.7% during the rainy season in 2015. The much higher monthly rainfall during the dry season in 2016 and 2018 had washed out invading seawater from the Mangga Dua site; its fraction of sea water was less than 0.4%. Saturation indexes with respect to calcite, dolomite, and gypsum minerals showed an increasing trend related to the decreasing elevations. All water samples were undersaturated with respect to gypsum. Meanwhile, saturation indexes with respect to calcite and dolomite mostly indicated undersaturated, except in the Mangga Dua site that was saturated (during the rainy season in 2015 and dry season in 2018) and supersaturated during the dry season in 2015.Evarista Ristin PujiindiyatiPaston SidaurukTantowi Eko PrayogiFaizal AbdillahDepartment of Chemistry, Universitas Gadjah Madaarticleciliwung riverhydrochemicalsea water mixturesaturation indexChemistryQD1-999ENIndonesian Journal of Chemistry, Vol 20, Iss 6, Pp 1360-1373 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	ciliwung river hydrochemical sea water mixture saturation index Chemistry QD1-999
spellingShingle	ciliwung river hydrochemical sea water mixture saturation index Chemistry QD1-999 Evarista Ristin Pujiindiyati Paston Sidauruk Tantowi Eko Prayogi Faizal Abdillah Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution
description	The chemical characteristics of the Ciliwung River were analyzed to understand hydrochemical evolution. A fraction of sea water mixture and kinds of mineral controlling for chemicals were also determined. During three year investigations in 2015, 2016, and 2018, electrical conductivity increased with decreasing elevations. Two hydrochemical facies had been identified for the Ciliwung river water; those were Ca-Mg-HCO3 and Ca-Na-HCO3. The river water mixing with seawater was recognized in the Mangga Dua site in which its water type had shifted to Na-Ca-HCO3-Cl. Based on Na-Cl contents, the fraction of sea water into the Ciliwung River reached 2% in the Mangga Dua site during the dry season and decreased to 0.7% during the rainy season in 2015. The much higher monthly rainfall during the dry season in 2016 and 2018 had washed out invading seawater from the Mangga Dua site; its fraction of sea water was less than 0.4%. Saturation indexes with respect to calcite, dolomite, and gypsum minerals showed an increasing trend related to the decreasing elevations. All water samples were undersaturated with respect to gypsum. Meanwhile, saturation indexes with respect to calcite and dolomite mostly indicated undersaturated, except in the Mangga Dua site that was saturated (during the rainy season in 2015 and dry season in 2018) and supersaturated during the dry season in 2015.
format	article
author	Evarista Ristin Pujiindiyati Paston Sidauruk Tantowi Eko Prayogi Faizal Abdillah
author_facet	Evarista Ristin Pujiindiyati Paston Sidauruk Tantowi Eko Prayogi Faizal Abdillah
author_sort	Evarista Ristin Pujiindiyati
title	Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution
title_short	Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution
title_full	Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution
title_fullStr	Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution
title_full_unstemmed	Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution
title_sort	hydrochemical evolution in ciliwung river – java, indonesia: study of sea water mixture and mineral dissolution
publisher	Department of Chemistry, Universitas Gadjah Mada
publishDate	2020
url	https://doaj.org/article/1d827dc2992648fc83318a93c1f0f511
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Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution

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