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All Journal Jurnal Teknologi Industri Pertanian Jurnal Pengolahan Hasil Perikanan Indonesia JURNAL KIMIA SAINS DAN APLIKASI Jurnal Keteknikan Pertanian Agrointek Sinergi Indonesian Journal of Science and Technology Jurnal Penelitian Karet JMM (Jurnal Masyarakat Mandiri) Sains Natural: Journal of Biology and Chemistry Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) International Journal of Marine Engineering Innovation and Research Automotive Experiences Journal of Mechanical Engineering, Science, and Innovation International Journal of Innovation in Mechanical Engineering and Advanced Materials ASEAN Journal for Science and Engineering in Materials ASEAN Journal of Educational Research and Technology
Obie Farobie
Division Of Biosystem Engineering, Faculty Of Engineering And Technology, IPB University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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PENGOLAHAN SAMPAH PADAT TPAS MANGGAR MENJADI PRODUK BIOPELLET (REFUSE-DERIVED FUEL) DENGAN MESIN PELLETIZER BERBASIS SISTEM PENGGERAK ROLLER Lusi Ernawati; Rizqy Romadhona Ginting; Rizka Lestari; Muhammad Raihan; Hizkia Gunawan Parulian Sianturi; Diniar Mungil Kurniawati; Apip Amrullah; Obie Farobie; Pandji Prawisudha
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 3 (2025): Juni
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i3.31314

Abstract

Abstrak: Dinas Lingkungan Hidup (DLH) Balikpapan memperingatkan bahwa kapasitas Tempat Pemrosesan Akhir Sampah (TPAS) Manggar diperkirakan akan mencapai batas maksimal pada tahun 2026 apabila tidak dilakukan upaya pengelolaan yang lebih optimal. Beberapa cara mengkonversi limbah padat menjadi bahan bakar telah dilakukan untuk mengurangi volume sampah padat yang semakin meningkat. Namun, tidak menunjukkan hasil yang signifikan, sehingga upaya pengolahan sampah padat terus dilakukan. Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan kemampuan masyarakat, khususnya komunitas pengelola sampah TPAS Manggar, dengan melatih mereka membuat produk biopellet menggunakan mesin pelletizer yang berbasis sistem penggerak roller. Kegiatan pengabdian dilakukan dengan melibatkan 25 peserta dari komunitas pengelola sampah TPAS Maggar. Kegiatan ini mencakup penyampaian materi teori, yang meliputi sosialisasi mengenai sampah padat, pemilahan sampah, dan manajemen pengolahannya. Selain itu, dilakukan demonstrasi penggunaan alat pelletizer, praktik langsung pembuatan biopellet, serta evaluasi melalui pre-test dan post-test. Dengan menggunakan analisis statistik Paired Two Sample for Means, terdapat peningkatan yang signifikan dalam tingkat pengetahuan serta keterampilan anggota kelompok pelatihan. Perbedaan rerata skor pre-test dan post-test yang secara statistik signifikan mengindikasikan bahwa program pelatihan tersebut memiliki dampak yang positif terhadap kemampuan para peserta. Dengan hasil evaluasi ini, pelatihan serupa diharapkan dapat direplikasi di komunitas lain sebagai upaya peningkatan kesadaran lingkungan dan penerapan teknologi ramah lingkungan dalam pengelolaan sampah.Abstract: The Balikpapan Environmental Agency (DLH) has issued a warning that the Manggar Final Waste Processing Site (TPAS) may reach full capacity by 2026 unless more effective waste management strategies are implemented. Although various methods of converting solid waste into fuel have been attempted to address the growing waste volume, these efforts have yet to produce significant results. Consequently, solid waste processing initiatives remain ongoing.In response, a community service program was initiated to enhance the capabilities of local residents, particularly members of the Manggar TPAS waste management team. This initiative focused on training participants in the production of biopellets using a pelletizer machine equipped with a roller drive system. A total of 20 community members took part in this program. The training included the presentation of theoretical material covering topics such as solid waste management, sorting procedures, and waste processing techniques. It also featured hands-on sessions where participants practiced operating the pelletizer and producing biopellets. To assess the program’s effectiveness, participants underwent pre- and post-training evaluations. Using the Paired Two Sample for Means statistical method, the data revealed a significant improvement in the participants’ knowledge and skills. The measurable increase in average test scores demonstrates the positive impact of the training. Based on these findings, it is advisable to implement similar initiatives in other communities to encourage environmental awareness and the use of sustainable waste management technologies.
Demineralization of Silica-Rich Agar Processing Residues via Hydrofluoric Acid Leaching for Organic Fraction Enrichment Andi Firdaus Sudarma; Edy Hartulistiyoso; Y. Aris Purwanto; Leopold Oscar Nelwan; Obie Farobie; Hendri; Harri Junaedi; Edy Herianto Majlan
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 8 No. 2 (2026)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v8i2.38546

Abstract

Agar solid waste (ASW) is a silica-rich industrial residue generated during agar extraction that contains organic residue mixed with mineral filtration aids such as Celite (diatomaceous earth) and perlite. Its high ash content and low organic fraction limit its direct utilization as a biomass-derived fuel. This study investigated hydrofluoric acid (HF) leaching as a demineralization pretreatment to reduce silica-rich minerals and improve the physicochemical quality of ASW. Two ASW samples obtained from different agar-processing plants, namely ASW-Celite (contain Celite) and ASW-Perlite (contain perlite), were treated using 10 wt% HF at a solid-to-liquid ratio of approximately 1:12. The treated samples were characterized using XRF, ICP-MS, FTIR, ultimate analysis, and proximate analysis. HF leaching caused substantial mass reduction, with solid yields of 24.99% for ASW-Celite-HF and 48.9% for ASW-Perlite-HF. Ash content decreased from 85.84 to 44.99 wt% in ASW-Celite and from 77.10 to 24.83 wt% in ASW-Perlite. XRF analysis confirmed significant silica removal, particularly in ASW-Celite, where SiO₂ decreased from 96.94 to 21.30%. ICP-MS further showed the reduction of several ash-forming and environmentally relevant elements, including Cr, Ni, Cu, Zn, Cd, P, S, Cl, Mn, and Fe. HF treatment also enriched the organic fraction, increasing carbon content from 4.69 to 12.52 wt% in ASW-Celite and from 9.83 to 16.10 wt% in ASW-Perlite. The HHV of ASW-Celite improved from 1.91 to 6.52 MJ/kg, whereas ASW-Perlite decreased from 4.80 to 3.19 MJ/kg due to its high oxygen content after treatment. These findings demonstrate that HF leaching effectively reduces silica-rich minerals in ASW, although further deoxygenation is required to improve its fuel quality for bioenergy applications.
Influence of inorganic content on hydrochar quality from high-ash agar extraction waste via hydrothermal carbonization Andi Firdaus Sudarma; Edy Hartulistiyoso; Yohanes Aris Purwanto; Leopold Oscar Nelwan; Obie Farobie; Nono Darsono; Khuzaimah Arifin; Maharani Dewi Solikhah; Tri Yulni; Imam Hidayat; Muhamad Fitri; Edy Herianto Majlan
SINERGI Vol. 30 No. 3 (2026)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2026.3.005

Abstract

Agar solid waste (ASW) has potential as a feedstock for hydrochar production because of its organic content; however, its high inorganic fraction, predominantly silica, limits its application. Furthermore, studies specifically investigating the hydrothermal carbonization (HTC) of ASW remain limited, given its high ash content and low energy value. This study investigated the HTC of ASW at varying temperatures (180–220 °C) and reaction times (30–90 minutes), with particular emphasis on how two inorganic components (celite versus perlite) affect hydrochar yield, composition, and energy properties. The resulting hydrochars were characterized using CHNSO, proximate, SEM, and FTIR analysis. The results revealed high ash contents reaching 77.7–92.08%, corresponding to HHV of 2.3–3.4 MJ kg⁻¹, while FTIR spectra confirmed strong silica presence through prominent Si–O–Si absorption bands. Therefore, the study provides valuable insights into silica-rich biomass behavior during HTC. The study also evaluated the relationship between HHV and ash content and analyzed the kinetic model. The results demonstrate the significant influence of inorganic components on carbonization pathways, highlighting opportunities to enhance hydrochar quality through pretreatment strategies such as acid/alkaline leaching or mineral separation.
Co-Authors Abdul Ghofur Abdulkareem Sh. Mahdi Al-Obaidi Aisha Nadhira Syazwany Akhmad Ghiffary Budianto Andi Firdaus Sudarma Andriani, Woro Apip Amrullah Apip Amrullah Apip Amrullah Apriastini, Marsiti Aris Purwanto Armansyah Halomoan Tambunan Asep Bayu Dani Nandiyanto Asron Ferdian Falaah, Asron Ferdian Belkheir Hammouti Deden Saprudin Edy Hartulistiyoso Edy Herianto Majlan Edy Herianto Majlan Erliza Hambali Erna Piantari Firman Arief Soejana Firmansyah, Shaeful Furqon Gilang Ramadhan Gunawan Rudi Cahyono Hani Handayani, Hani Hari Setiapraja Harri Junaedi Helen Lusiana Hendri Hizkia Gunawan Parulian Sianturi Imam Hidayat Irawansyah, Herry Jamalulail, Nanda Junita Tarigan Karina Nur Syarafah Khuzaimah Arifin Komar Sutriah Kurniawati, Diniar Mungil Lana Nafisyah, Ayu Lukmana, Wahyu Lusi Ernawati Lusi Ernawati M. Roil Bilad Maharani Dewi Solikhah Mahmud, Rizal Mamay Maslahat Maspanger, Dadi Rosadi Meika Syahbana Rusli Muhamad Fitri Muhammad Raihan Muhammad Raihan Muhammad Roil Bilad Muhammad Roil Bilad Nelwan, Leopold Oscar Nina Hartati Nono Darsono Nur Hasanah Pandji Prawisudha Pandji Prawisudha Pangga Apriliawan Pathur Razi Ansyah Rachmat Subagyo Radite Praeko Agus Setiawan Ragadhita, Risti Rahmadanis Rahmadanis Rahman, Delicia Yunita Risti Ragadhita Rizka Lestari Rizqy Romadhona Ginting Shaeful Firmansyah Sherly Hanifarianty, Sherly Swastika Praharyawan, Swastika Teguh Kurniawan Tetty Kemala Themy Sabri Syuhada Tri Yulni Widya FATRIASARI