Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System

Silica scaling is a common problem in geothermal power generation facilities which inhibits electricity generation. In order to provide a solution to this problem, the removal of silicate ions using CPEG-TOMAC (Chitosan-polyethylene glycol–trioctyl methyl ammonium chloride) membrane adsorbent was in...

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Autores principales:	Nur Hayati, Hanik Humaida, Dwi Siswanta
Formato:	article
Lenguaje:	EN
Publicado:	Department of Chemistry, Universitas Gadjah Mada 2021
Materias:	silica scaling geothermal brine chitosan adsorption silicate ion Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/ac1d632367404a06aa0cc7208468f4af
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spelling	oai:doaj.org-article:ac1d632367404a06aa0cc7208468f4af2021-12-02T18:38:04ZAdsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System1411-94202460-157810.22146/ijc.49248https://doaj.org/article/ac1d632367404a06aa0cc7208468f4af2021-08-01T00:00:00Zhttps://jurnal.ugm.ac.id/ijc/article/view/49248https://doaj.org/toc/1411-9420https://doaj.org/toc/2460-1578Silica scaling is a common problem in geothermal power generation facilities which inhibits electricity generation. In order to provide a solution to this problem, the removal of silicate ions using CPEG-TOMAC (Chitosan-polyethylene glycol–trioctyl methyl ammonium chloride) membrane adsorbent was investigated for geothermal brine from Geo Dipa Energy, Dieng. The process is dependent on contact time, pH, and the concentration of silicate. An adsorption batch study that used adsorbents for the geothermal brine of the Dieng Geo Dipa reactor 28A showed that CPEG TOMAC at pH 6 resulted in an adsorption capacity of 72.6 mg g–1. Furthermore, the adsorption of silicate ions onto the membrane followed pseudo-second-order kinetics and the Freundlich isotherm model.Nur HayatiHanik HumaidaDwi SiswantaDepartment of Chemistry, Universitas Gadjah Madaarticlesilica scalinggeothermal brinechitosanadsorptionsilicate ionChemistryQD1-999ENIndonesian Journal of Chemistry, Vol 21, Iss 5, Pp 1063-1071 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	silica scaling geothermal brine chitosan adsorption silicate ion Chemistry QD1-999
spellingShingle	silica scaling geothermal brine chitosan adsorption silicate ion Chemistry QD1-999 Nur Hayati Hanik Humaida Dwi Siswanta Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System
description	Silica scaling is a common problem in geothermal power generation facilities which inhibits electricity generation. In order to provide a solution to this problem, the removal of silicate ions using CPEG-TOMAC (Chitosan-polyethylene glycol–trioctyl methyl ammonium chloride) membrane adsorbent was investigated for geothermal brine from Geo Dipa Energy, Dieng. The process is dependent on contact time, pH, and the concentration of silicate. An adsorption batch study that used adsorbents for the geothermal brine of the Dieng Geo Dipa reactor 28A showed that CPEG TOMAC at pH 6 resulted in an adsorption capacity of 72.6 mg g–1. Furthermore, the adsorption of silicate ions onto the membrane followed pseudo-second-order kinetics and the Freundlich isotherm model.
format	article
author	Nur Hayati Hanik Humaida Dwi Siswanta
author_facet	Nur Hayati Hanik Humaida Dwi Siswanta
author_sort	Nur Hayati
title	Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System
title_short	Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System
title_full	Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System
title_fullStr	Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System
title_full_unstemmed	Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System
title_sort	adsorption of silicate anions from geothermal brine using chitosan-polyethylene glycol composite to prevent silica scaling on the dieng geo dipa geothermal energy system
publisher	Department of Chemistry, Universitas Gadjah Mada
publishDate	2021
url	https://doaj.org/article/ac1d632367404a06aa0cc7208468f4af
work_keys_str_mv	AT nurhayati adsorptionofsilicateanionsfromgeothermalbrineusingchitosanpolyethyleneglycolcompositetopreventsilicascalingonthedienggeodipageothermalenergysystem AT hanikhumaida adsorptionofsilicateanionsfromgeothermalbrineusingchitosanpolyethyleneglycolcompositetopreventsilicascalingonthedienggeodipageothermalenergysystem AT dwisiswanta adsorptionofsilicateanionsfromgeothermalbrineusingchitosanpolyethyleneglycolcompositetopreventsilicascalingonthedienggeodipageothermalenergysystem
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Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System

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