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Ninis Hadi Haryanti, Ninis Hadi
Program Studi Fisika, Universitas Lambung Mangkurat
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Journal : International Journal of Renewable Energy Development

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Bio-briquettes from tea fluff biochar: a response surface methodology study on particle size, resin gum-adhesive, and used cooking oil immersion time Suryajaya, Suryajaya; Agustian, Egi; Haryanti, Ninis Hadi; Prasetia, Hafiizh; Rahmah, Siti; Kurniawan, Hendris Hendarsyah; Wianto, Totok; Ramadhoni, Benni F; Manik, Tetti Novalina; Annisa, Nova; Rezamela, Erdiansyah; Sulaswatty, Anny
International Journal of Renewable Energy Development Vol 14, No 5 (2025): September 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60877

Abstract

Fluff tea is the residual solid waste generated in the green tea industry and holds the potential for development as a solid fuel in bio-briquettes. This study transformed fluff tea into bio-briquettes utilizing biochar produced through slow pyrolysis. The study aimed to optimize bio-briquettes production from fluff tea using the Response Surface Methodology (RSM) approach through proximate analysis. The cylindrical bio-briquettes were produced using biochar particle sizes of 850, 500, and 150 μm, resin gum adhesive concentrations of 10%, 15%, and 20%, and immersion times in cooking oil of 0, 3, and 6 minutes. The results showed that the overall response by the p-value was <0.05, and the lack of fit was insignificant (p-value >0.05). The findings indicated that the calorific value of tea fluff rose from 4,482.56 cal/g to 6,374.98 cal/g after conversion to biochar. The optimum conditions for producing tea fluff bio-briquettes were a particle size of 850 μm, adhesive concentration of 11%, and immersion time of 5 minutes. The bio-briquettes exhibited a moisture content of 3.53%, ash content of 5.65%, volatile matter of 14.75%, fixed carbon of 76.14%, calorific value of 7,796.37 cal/g, combustion rate of 0.11 g/min, density of 1.22 g/cm3, and compressive strength of 35.57 N/cm2. Most tea fluff briquettes' properties had met Indonesia's briquettes standard. The production of bio-briquettes from tea fluff waste is a viable alternative fuel for both industrial and domestic applications.
Co-Authors Agus Riyanto Akhmad Safi'i Anny Sulaswatty, Anny Arif Sholahuddin Asyiah, Nor Ayu, Futri Damayanti, Dian Khatimah Darminto . Dicky Audi Rahman Egi Agustian Erdiansyah Rezamela, Erdiansyah Ernawati Fahmi Fahmi Fahrunnisa, Hasiarni Fitriani Fitriani Futri Ayu Ginanjar, Awal Hafiizh Prasetia, Hafiizh Hendris Hendarsyah Kurniawan, Hendris Hendarsyah Hendry Wardhana Henri Wardhana Henry Wardhana Henry Wardhana Herin Hutri Istyarini Husain, Sadang I Gusti Ngurah Krisna Wijaya Ida Ayu Putu Sri Widnyani Irma Rifina Irmawati Istyarini, Herin Hutri Khayanti, Yuni Sri Lies Banowati Manik, Tetti N. Manik, Tetti Novalina Mawaddatur Rahmah Maya, Safitri Meilina, Putri Michael William Sihombing Muhaemina, Maulanie Muhammad Rijal Bashri Muhammad Zaini Munir, M. Jiddan Mishbahul Nada Sofi Andini Najmi, M. Ikhwan Navisah, Saidatun Nilawati, Indah Nirtha Nopi Stiyati Prihatini Nova Annisa Nova Annisa, Nova Nur Hazizah Oktafiansyah, Rahmad Permitaria, Antung Purba, Santi Carolina Rahmat Basuki Rahmat Yunus Ramadhoni, Benni F Rifina, Irma Rijali Noor Rodiansono Rodiansono Rony Riduan Sadang Husain Sari, Putri Sembiring, Rinawati Sepfina Monica Hutasoit Simon Sadok Siregar Simon Sadok Siregar, Simon Sadok Siti Rahmah Sri Cahyo Wahyono Suarso, Eka Sudarningsih Sudarningsih Sudarningsih Sudarningsih Sudarningsih, Rusdiansyah Sukmana, M. Laily Qadry Surini Surini Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya Suryajaya, Suryajaya Suyidno Suyidno Taufik Hidayat Tetti Novalina Manik Totok Wianto Yoga Saputra Yudha Irhasyuarna Yulia Anggraini