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Effect of pH and Surfactant Concentration Sodium Lignosulfonate (SLS) towards Reduction of Silica Mass from Geothermal Brine

JURNAL GEOCELEBES · Vol. 7 No. 1 (2023) · pp. 37–43

DOI
10.20956/geocelebes.v7i1.22130
ISSN
2579-5546, 2579-5821
Published
2023-04-05
Publisher
Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar
Language
en

Abstract

Geothermal energy source is one of the wealth of mineral resources that are being widely used. Geothermal Power Plant is a solution to the needs of New Renewable Energy to overcome energy needs and dependence on renewable energy. However, there were important problems that occurred in the geothermal field, namely the formation of silica scaling in the production pipe causing the brine injection process to be disrupted, the injection process aims to maintain the volume of the geothermal reservoir and maintain the quantity of production steam in the long run. Therefore, controlling silica in the brine injection path in geothermal fields is very much needed. This paper discussed the decrease in silica mass influenced by pH and the addition of Sodium Lignosulfonate (SLS) surfactants that studying the changes in pH (7, 8 and 9), and surfactant concentrations (0.05, 0.15 and 0.30% (w/v)). The results showed that the dissolved silica in the geothermal solution was reduced and could be controlled by the addition of SLS surfactants. The greater the surfactant concentration and pH, the more the mass of silica will be taken. The best conditions are at pH 9 and SLS surfactant concentration 0.30%w/v.

Keywords

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8 authors · 12 co-authorship links

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Co-authorOrganisationJoint articles
SHERLI NOVALINDAAffiliation unknown1
PUPUT RAHMADANTIAffiliation unknown1
Muhammad Altin MassinaiAffiliation unknown1
Muhammad Fawzy Ismullah MassinaiAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/geocelebes/oai, first harvested 3 Nov 2026, last seen 3 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">Effect of pH and Surfactant Concentration Sodium Lignosulfonate (SLS) towards Reduction of Silica Mass from Geothermal Brine</dc:title>
	<dc:creator xml:lang="en">Ulya, M. Ridho</dc:creator>
	<dc:creator xml:lang="en">Suharmanto, Suharmanto</dc:creator>
	<dc:creator xml:lang="en">Saaduddin, Saaduddin</dc:creator>
	<dc:creator xml:lang="en">Supriyadi, Didik</dc:creator>
	<dc:subject xml:lang="en">geothermal</dc:subject>
	<dc:subject xml:lang="en">silica scaling</dc:subject>
	<dc:subject xml:lang="en">sodium lignosulfonate</dc:subject>
	<dc:subject xml:lang="en">surfactant</dc:subject>
	<dc:description xml:lang="en">Geothermal energy source is one of the wealth of mineral resources that are being widely used. Geothermal Power Plant is a solution to the needs of New Renewable Energy to overcome energy needs and dependence on renewable energy. However, there were important problems that occurred in the geothermal field, namely the formation of silica scaling in the production pipe causing the brine injection process to be disrupted, the injection process aims to maintain the volume of the geothermal reservoir and maintain the quantity of production steam in the long run. Therefore, controlling silica in the brine injection path in geothermal fields is very much needed. This paper discussed the decrease in silica mass influenced by pH and the addition of Sodium Lignosulfonate (SLS) surfactants that studying the changes in pH (7, 8 and 9), and surfactant concentrations (0.05, 0.15 and 0.30% (w/v)). The results showed that the dissolved silica in the geothermal solution was reduced and could be controlled by the addition of SLS surfactants. The greater the surfactant concentration and pH, the more the mass of silica will be taken. The best conditions are at pH 9 and SLS surfactant concentration 0.30%w/v.</dc:description>
	<dc:publisher xml:lang="en">Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar</dc:publisher>
	<dc:date>2023-04-05</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
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	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unhas.ac.id/index.php/geocelebes/article/view/22130</dc:identifier>
	<dc:identifier>10.20956/geocelebes.v7i1.22130</dc:identifier>
	<dc:source xml:lang="en">JURNAL GEOCELEBES; Vol. 7 No. 1: April 2023; 37–43</dc:source>
	<dc:source>2579-5546</dc:source>
	<dc:source>2579-5821</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/geocelebes/article/view/22130/9652</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2023 JURNAL GEOCELEBES</dc:rights>
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