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Operating Variables on Production of High Purity Bio-silica from Rice Hull Ash by Extraction Process

Journal of Engineering and Technological Sciences · Vol. 54 No. 3 (2022)

DOI
10.5614/j.eng.technol.sci.2022.54.3.4
ISSN
2338-5502, 2337-5779
Terbit
2022-05-20
Penerbit
Directorate for Research and Community Services, Institut Teknologi Bandung
Bahasa
eng

Abstrak

The huge amount of rice hull biomass available in Indonesia can be utilized as raw material for bio-silica production. This study investigated the production of high-purity bio-silica from rice hull ash through an alkaline extraction process. A full factorial design (FFD) was used to screen for significant effects of the observed variables. Three operating variables – acid concentration, solvent to feed ratio (RS/F), and extraction time – were investigated with the purpose of obtaining a high yield and high purity of bio-silica. Yield and purity above 96% were achieved by using pretreatment with 1 mol/L HCl. Employing an RS/F of 5 and a longer extraction time improved the bio-silica yield. The operating variable that enhanced the bio-silica yield and purity most was acid concentration. All variable interactions had an insignificant effect on purity, while two interacting variables had a significant effect on bio-silica yield. Based on the results of this study, rice crop residue can be optimally converted to a bio-silica product in terms of yield and purity by optimizing the most effective operating variables.

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  • Bandung Institute of Technology
  • Sultan Ageng Tirtayasa University
  • IPB University
  • Diponegoro University
  • Institut Teknologi Sepuluh Nopember
  • Sumatera Institute of Technology
  • Universiti Brunei Darussalam
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Rekan penulisOrganisasiArtikel bersama
Yogi Wibisono BudhiBandung Institute of Technology6
Anton IrawanSultan Ageng Tirtayasa University3
Subagjo SubagjoBandung Institute of Technology3
Mohammad EffendyBandung Institute of Technology3
Maelita Ramdani MoeisBandung Institute of Technology2
Hafid AlwanSultan Ageng Tirtayasa University2
Teguh KurniawanSultan Ageng Tirtayasa University2
Tjokorde Walmiki SamadhiBandung Institute of Technology2
Elfa Susanti ThamrinSumatera Institute of Technology1
Endang WarsikiIPB University1
Ono SuparnoIPB University1
Armaya Badiatul FitriAfiliasi tidak diketahui1
Asep Bayu Dani NandiyantoIndonesia University of Education1
Darisman DarismanSultan Ageng Tirtayasa University1
Dina PujiantiSultan Ageng Tirtayasa University1
Muhammad Saifullah Abu BakarUniversiti Brunei Darussalam1
DEBBIE SOEFIE RETNONINGRUMBandung Institute of Technology1
Patricia Gita NaullyBandung Institute of Technology1
Neni NurainyPT Bio Farma (Indonesia)1
Dessy NataliaBandung Institute of Technology1
Wardono NiloperbowoBandung Institute of Technology1
Ernawati Arifin Giri-RachmanBandung Institute of Technology1
Edvan Arifsaputra SuhermanBandung Institute of Technology1
Kindi Pyta GaniBandung Institute of Technology1
Arinta DewiBandung Institute of Technology1
Linea Alfa ArinaBandung Institute of Technology1
Katarina Ika KurniawatiBandung Institute of Technology1
Akhmaloka AkhmalokaBandung Institute of Technology1
Aprilina PurbasariDiponegoro University1
IGBN MakertiharthaAfiliasi tidak diketahui1
Luqman BuchoriDiponegoro University1
Muhammad Dani SupardanUniversitas Syiah Kuala1
N. A. SutrisniningrumBandung Institute of Technology1
D. SantianiBandung Institute of Technology1
Renanto RenantoAfiliasi tidak diketahui1
Achmad RoesyadiInstitut Teknologi Sepuluh Nopember1
Semuel Pati SendaInstitut Teknologi Sepuluh Nopember1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journals.itb.ac.id/index.php/jets/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Operating Variables on Production of High Purity Bio-silica from Rice Hull Ash by Extraction Process</dc:title>
	<dc:creator>Steven, Soen</dc:creator>
	<dc:creator>Restiawaty, Elvi</dc:creator>
	<dc:creator>Bindar, Yazid</dc:creator>
	<dc:subject xml:lang="en-US">acid concentration</dc:subject>
	<dc:subject xml:lang="en-US">alkaline extraction</dc:subject>
	<dc:subject xml:lang="en-US">bio-silica</dc:subject>
	<dc:subject xml:lang="en-US">full factorial design</dc:subject>
	<dc:subject xml:lang="en-US">rice hull ash</dc:subject>
	<dc:subject xml:lang="en-US">Bioenergy Engineering and Chemurgy</dc:subject>
	<dc:subject xml:lang="en-US">Chemical Engineering</dc:subject>
	<dc:description xml:lang="en-US">The huge amount of rice hull biomass available in Indonesia can be utilized as raw material for bio-silica production. This study investigated the production of high-purity bio-silica from rice hull ash through an alkaline extraction process. A full factorial design (FFD) was used to screen for significant effects of the observed variables. Three operating variables – acid concentration, solvent to feed ratio (RS/F), and extraction time – were investigated with the purpose of obtaining a high yield and high purity of bio-silica. Yield and purity above 96% were achieved by using pretreatment with 1 mol/L HCl. Employing an RS/F of 5 and a longer extraction time improved the bio-silica yield. The operating variable that enhanced the bio-silica yield and purity most was acid concentration. All variable interactions had an insignificant effect on purity, while two interacting variables had a significant effect on bio-silica yield. Based on the results of this study, rice crop residue can be optimally converted to a bio-silica product in terms of yield and purity by optimizing the most effective operating variables.</dc:description>
	<dc:publisher xml:lang="en-US">Directorate for Research and Community Services, Institut Teknologi Bandung</dc:publisher>
	<dc:date>2022-05-20</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://journals.itb.ac.id/index.php/jets/article/view/15279</dc:identifier>
	<dc:identifier>10.5614/j.eng.technol.sci.2022.54.3.4</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Engineering and Technological Sciences; Vol. 54 No. 3 (2022); 220304</dc:source>
	<dc:source>2338-5502</dc:source>
	<dc:source>2337-5779</dc:source>
	<dc:source>10.5614/j.eng.technol.sci.2022.54.3</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journals.itb.ac.id/index.php/jets/article/view/15279/5796</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 Journal of Engineering and Technological Sciences</dc:rights>
</oai_dc:dc>