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Equilibrium study for mercury removal using sub-bituminous coal and its application on ex-gold mining soil contaminated with mercury

Journal of Degraded and Mining Lands Management · Vol. 11 No. 3 (2024) · pp. 5551–5564

DOI
10.15243/jdmlm.2024.113.5551
ISSN
2502-2458, 2339-076X
Published
2024-04-01
Publisher
Brawijaya University
Language
eng
License
creativecommons.org/licenses/by-nc/4.0

Abstract

Optimizing the potential utilization of low-rank coal, such as sub-bituminous coal (SC), can improve and maintain soil quality and productivity through amelioration technology. This potential is especially in controlling heavy metals such as Hg. This study aimed to examine the geochemistry of SC and the adsorption mechanism of Hg with SC through an adsorption isotherm model approach developed for experimental equilibrium. The geochemical of SC has an atomic composition of C (43.60%), O (40.64%), N (11.96%), Si (1.57%), Al (1.06%), Ca (0.92%), Mg (0.14%) and K (0.11%) and oxide composition dominated by SiO2 (57.07%), as well as O-H and N-H functional groups, C-H C-H, C=C-H, C=O, and C=C-H and minerals (quartz, magnetite, mica and muscovite). Characteristics of SC have a proximate composition (16.99% moisture, 97.81% volatile matter, 69.63% ash, and 28.19% fixed carbon) and chemical properties of pH, EC, CEC, OC, and total N (5.23, 1.38 dS m-1, 35.33 cmol(+) kg-1, 9.81% C, and 0.16% N). The adsorption capacity and coefficient of Hg2+ by SC were 304.32 mg g-1 and 78.67 L kg-1 at pH 1.26 and Hg2+ concentration 100 mg L-1 with a removal efficiency of 76.08%. Hg2+ adsorption isotherms occurred in Langmuir (RL = 0.97 and R² = 1)>Freundlich (1/n = 1.05 and R² = 0.9999) models. The application of 40 t SC ha-1 on ex-gold mining soil contaminated with Hg significantly decreased the total Hg in the soil by 2.50 mg kg-1 and a removal efficiency of 36.37% with increased pH H2O (0.35), OC (0.041% C), and CEC 2.14 cmol(+) kg-1, compared to control.

Keywords

Collaboration network of the authors

33 authors · 145 co-authorship links

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  • Andalas University
  • Affiliation unknown
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Co-authorOrganisationJoint articles
Arestha Leo LitaAffiliation unknown13
Dewi RezkiAndalas University12
Irwan DarfisAffiliation unknown12
Moli MonikasariAffiliation unknown10
Ridho RyswaldiAffiliation unknown8
Salma AthiyyaAffiliation unknown6
Syafrimen YasinAffiliation unknown4
Pitri JuwitaAffiliation unknown4
Reza Tri KurniantoAffiliation unknown4
Benito Heru PurwantoAffiliation unknown3
Darusman DarusmanAffiliation unknown3
Ellsya Tatalia Augustin Putri TanjungAffiliation unknown3
Endar HidayatAffiliation unknown3
Zuldadan NaspendraAffiliation unknown2
Nurul HijriAffiliation unknown2
Hermansah HermansahAffiliation unknown2
An Nisa Mutiara FathiAffiliation unknown2
M. Hafizh Ash ShiddiqAffiliation unknown2
Defry Jonica PutriAffiliation unknown2
Supiandi SabihamAffiliation unknown1
Atang SutandiAffiliation unknown1
Rasti SaraswatiAffiliation unknown1
Maswar MaswarAffiliation unknown1
Rahmi AwalinaAffiliation unknown1
Juniarti JuniartiAffiliation unknown1
Reflinaldon ReflinaldonAffiliation unknown1
Jelsi Trisna NoferitaAffiliation unknown1
Nurul KhairatiAffiliation unknown1
Vasenev Ivan IvanovichAffiliation 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) http://jdmlm.ub.ac.id/index.php/jdmlm/oai, first harvested 9 Nov 2026, last seen 9 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en-US">Equilibrium study for mercury removal using sub-bituminous coal and its application on ex-gold mining soil contaminated with mercury</dc:title>
	<dc:creator>Maulana, Amsar</dc:creator>
	<dc:creator>Harianti, Mimien</dc:creator>
	<dc:creator>Prasetyo , Teguh Budi</dc:creator>
	<dc:creator>Herviyanti, Herviyanti</dc:creator>
	<dc:subject xml:lang="en-US">equilibrium</dc:subject>
	<dc:subject xml:lang="en-US">ex-gold mining soil</dc:subject>
	<dc:subject xml:lang="en-US">geochemical</dc:subject>
	<dc:subject xml:lang="en-US">mercury</dc:subject>
	<dc:subject xml:lang="en-US">sub-bituminous coal</dc:subject>
	<dc:description xml:lang="en-US">Optimizing the potential utilization of low-rank coal, such as sub-bituminous coal (SC), can improve and maintain soil quality and productivity through amelioration technology. This potential is especially in controlling heavy metals such as Hg. This study aimed to examine the geochemistry of SC and the adsorption mechanism of Hg with SC through an adsorption isotherm model approach developed for experimental equilibrium. The geochemical of SC has an atomic composition of C (43.60%), O (40.64%), N (11.96%), Si (1.57%), Al (1.06%), Ca (0.92%), Mg (0.14%) and K (0.11%) and oxide composition dominated by SiO2 (57.07%), as well as O-H and N-H functional groups, C-H C-H, C=C-H, C=O, and C=C-H and minerals (quartz, magnetite, mica and muscovite). Characteristics of SC have a proximate composition (16.99% moisture, 97.81% volatile matter, 69.63% ash, and 28.19% fixed carbon) and chemical properties of pH, EC, CEC, OC, and total N (5.23, 1.38 dS m-1, 35.33 cmol(+) kg-1, 9.81% C,  and 0.16% N). The adsorption capacity and coefficient of Hg2+ by SC were 304.32 mg g-1 and 78.67 L kg-1 at pH 1.26 and Hg2+ concentration 100 mg L-1 with a removal efficiency of 76.08%. Hg2+ adsorption isotherms occurred in Langmuir (RL = 0.97 and R² = 1)&amp;gt;Freundlich (1/n = 1.05 and R² = 0.9999) models. The application of 40 t SC ha-1 on ex-gold mining soil contaminated with Hg significantly decreased the total Hg in the soil by 2.50 mg kg-1 and a removal efficiency of 36.37% with increased pH H2O (0.35), OC (0.041% C), and CEC 2.14 cmol(+) kg-1, compared to control.
 </dc:description>
	<dc:publisher xml:lang="en-US">Brawijaya University</dc:publisher>
	<dc:date>2024-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/16396</dc:identifier>
	<dc:identifier>10.15243/jdmlm.2024.113.5551</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Degraded and Mining Lands Management; Vol. 11 No. 3 (2024); 5551-5564</dc:source>
	<dc:source>2502-2458</dc:source>
	<dc:source>2339-076X</dc:source>
	<dc:source>10.15243/jdmlm.2024.113</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/16396/980</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2024 Journal of Degraded and Mining Lands Management</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-nc/4.0</dc:rights>
</oai_dc:dc>