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All Journal SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Aptekmas : Jurnal Pengabdian Kepada Masyarakat Chemical Engineering Journal Storage (CEJS) Penamas: Journal of Community Service Indonesian Journal of Multidisciplinary on Social and Technology JPNM : Jurnal Pustaka Nusantara Multidisiplin

Lety Trisnaliani

Politeknik Negeri Sriwijaya

Author-ID : 3452677

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PELATIHAN PEMBUATAN BIODIESEL DARI MINYAK JELANTAH SKALA LABORATORIUM DI SMP NEGERI 5 PANGKALAN PANJI BANYUASIN SUMATERA SELATAN Fatria Fatria; Lety Trisnaliani; Indah Purnamasari
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 1 No 2 (2018): APTEKMAS Volume 1 Nomor 2 2018
Publisher : Politeknik Negeri Sriwijaya

This community service activity for processing used cooking oil into biodiesel was carried out at Banyuasin III SMPN 5, South Sumatra. Around the school there are many fried traders and tent stalls that have the potential to produce used cooking oil. Seeing this potential, the community service team of the Sriwijaya Polytechnic Department of Chemical Engineering provided training to students and teachers of the South Sumatra Banyuasin SMPN 5 to make laboratory-scale biodiesel from used cooking oil. Biodiesel production can be used to increase the potential of human resources and preserve the environment from used cooking oil pollutants. The method of implementing this service activity is with the pattern of field schools with press points on the exploration of knowledge, awareness of the environment, and skills and forms of approach taken to increase the motivation of students and teachers as partners and able to process used cooking oil into biodiesel by socializing about the importance of saving fossil fuels, protecting the environment and producing alternative fuels from used cooking oil which are often found in everyday life.

PENGELOLAAN LINGKUNGAN DENGAN CARA MEMANFAATKAN FLY ASH BATUBARA SEBAGAI BAHAN BAKU MEMBRAN SILIKA DALAM UPAYA MEMINIMALISIR LIMBAH B3 DI PT SEMEN BATURAJA OKU Lety Trisnaliani; Indah Purnamasari; Ahmad Zikri; Selastia Yuliati
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 1 No 2 (2018): APTEKMAS Volume 1 Nomor 2 2018
Publisher : Politeknik Negeri Sriwijaya

The target of community service assignments in 2018 is productive communities that need development in the field of environmental management, namely employees of the Quality Control Laboratory of PT. Semen Baturaja OKU. Coal ash is a waste unlike gas from combustion, because it is a solid material that is not easily dissolved and is not volatile so it will be more troublesome in handling. If the amount is large and is not handled properly, then the coal ash can pollute the environment especially caused by fly ash and can be sucked by humans and animals can also affect the condition of the surrounding water and soil so that it can kill the plants. The chemical composition of Fly ash is silica, alumina and iron with little calcium, magnesium, sulfate, and other components. Currently coal fly ash is used in cement plants as a mixture of concrete makers. Because of the smoothness and round shape of the granules, the use of fly ash on the concrete mixture can increase the slack on the concrete mixture. The advantages of using fly ash include increasing the strength of concrete, filling the pores in the concrete so that the porosity of the concrete becomes low, while increasing the density of concrete so that it can increase the tightness of concrete to water. The coal fly ash waste that accumulates also occurs in the industry of PT Semen Baturaja Ogan Komering Ulu. PT. Semen Baturaja is one of the largest cement industries in Sumatra that produces PCC (Portland Composite Cement). PCC type cement is cement made by utilizing inorganic additives such as fly ash and trass. Aside from being an additional material for cement, fly ash can also be used as a raw material for making silica membranes which serves to reduce metal content in acid mine drainage. So that the author wishes to socialize the employees and employees of PT Semen Baturaja especially in the BTA II Quality Control laboratory division to disseminate knowledge about the benefits of coal fly ash as raw material for silica membranes in minimizing B3 waste so that environmental management with a friendly environment will achieved.

SOSIALISASI PEMANFAATAN LIMBAH KULIT DURIAN SEBAGAI PRODUK BRIKET DI WILAYAH WARGA RT. 19 KELURAHAN 1 ILIR KECAMATAN ILIR TIMUR II PALEMBANG SUMATERA SELATAN Lety Trisnaliani; Ahmad Zikri; Erlinawati Akil
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 1 No 2 (2018): APTEKMAS Volume 1 Nomor 2 2018
Publisher : Politeknik Negeri Sriwijaya

Durian waste is the basic ingredient of making this briquette and just piling up into waste in the neighborhood where it sells and can not provide economic value. Now the material we used to call environmental waste will turn into alternative fuels. Through the process of processing, durian waste will be fuel in the form of briquettes and this product will have a fairly high selling value. The briquettes also smell good when used, making them suitable for the food industry, both large and large scale. Because of these several advantages, durian leather briquettes have wide open market potential in both local, domestic and export markets. The method implemented is to socialize the utilization of durian skin by spreading knowledge with the manufacture and processing of durian skin so as to produce the outcome of durian briquette product as a substitute of fuel in the era of expensive energy.

Pelatihan penulisan ilmiah dan sosialisasi dampak negatif plagiasi dan perjokian untuk mahasiswa Teknik Mesin Universitas Tamansiswa Palembang Boni Junita; Putri Afifa Nur Oktadina; Mutiara Putri; Muhammad Noviansyah Nugraha; Lety Trisnaliani; Sahrul Effendy
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 4 (2025): Juli
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i4.31728

AbstrakPelatihan penulisan ilmiah dan sosialisasi dampak negatif plagiasi serta perjokian untuk mahasiswa Teknik Mesin Universitas Tamansiswa Palembang merupakan kegiatan pengabdian masyarakat dengan tujuan yaitu meningkatkan pemahaman dan keterampilan mahasiswa dalam penulisan karya ilmiah yang berintegritas. Kegiatan ini dilaksanakan sebagai respons terhadap maraknya kasus plagiarisme dan praktik perjokian di kalangan mahasiswa, yang disebabkan oleh faktor seperti tekanan akademik, kurangnya pemahaman tentang teknik penulisan, dan akses mudah terhadap jasa tidak etis. Metode pelaksanaan terdiri dari tiga tahap utama: pemaparan materi tentang penulisan ilmiah, sosialisasi dampak negatif plagiasi dan perjokian, serta pelatihan praktis penggunaan alat pendeteksi plagiarisme seperti Turnitin dan Grammarly. Mahasiswa peserta kegiatan yang terlibat aktif dalam diskusi interaktif dan praktik langsung. Hasil menunjukkan peningkatan signifikan dalam pemahaman mahasiswa mengenai teknik penulisan ilmiah, etika akademik, dan cara menghindari pelanggaran. Selain itu, mahasiswa juga memperoleh keterampilan menggunakan alat bantu untuk memastikan orisinalitas karya tulis. Kegiatan ini tidak hanya mengurangi risiko plagiarisme dan perjokian tetapi juga membangun budaya akademik yang jujur dan bertanggung jawab. Dampak jangka panjangnya adalah peningkatan kualitas lulusan dan reputasi institusi. Saran untuk keberlanjutan kegiatan ini adalah menjalin kerjasama lebih luas dan mengadakan pelatihan berkala untuk memastikan pemahaman yang berkelanjutan. Kata kunci: pelatihan; sosialisasi; penulisan ilmiah; plagiasi; perjokian. AbstractScientific writing training and socialization of the negative impact of plagiarism and cheating for Mechanical Engineering students of Tamansiswa University Palembang is a community service activity with the aim of increasing students' understanding and skills in writing scientific papers with integrity. This activity was carried out in response to the rampant cases of plagiarism and cheating among students, caused by factors such as academic pressure, lack of understanding of writing techniques, and easy access to unethical services. The implementation method consisted of three main stages: material presentation on scientific writing, socialization of the negative impact of plagiarism and cheating, and practical training on the use of plagiarism detection tools such as Turnitin and Grammarly. Students participating in the activity were actively involved in interactive discussions and hands-on practice. The results showed a significant increase in students' understanding of scientific writing techniques, academic ethics, and how to avoid violations. In addition, students also acquire the skills to use tools to ensure the originality of the written work. These activities not only reduce the risk of plagiarism and cheating but also build an honest and responsible academic culture. The long-term impact is to improve the quality of graduates and the reputation of the institution. Suggestions for the sustainability of this activity are to establish wider cooperation and conduct periodic training to ensure continuous understanding. Keywords: training; socialization; scientific writing; plagiarism; cheating.

Enhancing renewable energy literacy through aromatic biobriquettes production training at Al-Amalul Khair Islamic Boarding School Lety Trisnaliani; Ahmad Zikri; Ida febriana; Isnandar Yunanto; Ahmad Zydan Alhabsyi; Zahra Ananda Lanos; Nadia Melisa Fitri; Faridatuljana Binti Mohd Noor
Penamas: Journal of Community Service Vol. 6 No. 2 (2026): Penamas: Journal of Community Service
Publisher : Nur Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53088/penamas.v6i2.3117

Limited renewable energy literacy and inadequate utilization of organic waste remain significant challenges in school-based environmental education. This community service program aimed to enhance renewable energy literacy and practical biomass utilization skills among students and teachers at Al-Amalul Khair Islamic Boarding School, Palembang, Indonesia, through aromatic biobriquette production training. The program employed a community-based learning approach consisting of lectures, technical demonstrations, hands-on practice, and interactive discussions. Thirty participants were involved in the activity. Program effectiveness was evaluated using a one-group pretest–posttest design. The results showed a significant increase in participants’ knowledge, with the mean score improving from 45.67 before the training to 95.00 after the training. In addition, participants demonstrated strong engagement during practical activities and expressed willingness to apply aromatic biobriquette technology for sustainable organic waste management. The findings indicate that hands-on training effectively improves renewable energy literacy and technical competencies related to biomass-based energy production.

Pengaruh Temperatur Substrat FTO dan Konsentrasi Prekursor ZnO:Mg terhadap Performa Solar Cell Heterojunction Cu₂O/ZnO Marfitra. S; Lety Trisnaliani; Iriani Reka Septiana
JPNM Jurnal Pustaka Nusantara Multidisiplin Vol. 4 No. 3 (2026): July : Jurnal Pustaka Nusantara Multidisiplin (ACCEPTED)
Publisher : SM Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59945/jpnm.v4i3.1536

Energi surya merupakan salah satu sumber energi terbarukan yang memiliki potensi besar untuk dikembangkan sebagai alternatif pemenuhan kebutuhan energi listrik yang ramah lingkungan. Salah satu teknologi yang terus dikembangkan adalah solar cell heterojunction berbasis Cu₂O/ZnO/FTO yang memanfaatkan kombinasi material semikonduktor tipe-p dan tipe-n untuk meningkatkan proses pemisahan serta transport pembawa muatan. Performa perangkat sangat dipengaruhi oleh kualitas lapisan penyusun yang dipengaruhi oleh parameter fabrikasi. Oleh karena itu, penelitian ini bertujuan untuk menganalisis pengaruh variasi temperatur pemanasan substrat FTO dan konsentrasi larutan prekursor ZnO terhadap performa solar cell heterojunction Cu₂O/ZnO/FTO serta mengevaluasi efisiensi konversi energi yang dihasilkan. Lapisan ZnO dideposisikan menggunakan metode spray pyrolysis pada temperatur 425°C, 450°C, 475°C, dan 500°C dengan variasi konsentrasi larutan ZnO sebesar 0,3 M:0,03 M; 0,4 M:0,04 M; dan 0,5 M:0,05 M. Selanjutnya, lapisan Cu₂O dibentuk menggunakan metode electrodeposition sehingga diperoleh struktur heterojunction Cu₂O/ZnO/FTO. Karakterisasi dilakukan melalui pengukuran parameter keluaran listrik yang meliputi open-circuit voltage (Voc), short-circuit current (Isc), daya keluaran (P), power density (Parea), dan efisiensi konversi energi. Hasil penelitian menunjukkan bahwa variasi temperatur pemanasan substrat dan konsentrasi larutan ZnO berpengaruh terhadap peningkatan karakteristik listrik solar cell. Kondisi optimum diperoleh pada konsentrasi ZnO 0,5 M:0,05 M dengan temperatur pemanasan 500°C yang menghasilkan nilai open-circuit voltage sebesar 120,5 mV, short-circuit current sebesar 145,8 mA, daya keluaran sebesar 17,57 mW, power density sebesar 0,234 mW/cm², dan efisiensi konversi energi sebesar 0,35%. Hasil penelitian menunjukkan bahwa peningkatan temperatur pemanasan substrat yang dipadukan dengan konsentrasi larutan prekursor ZnO yang tepat mampu menghasilkan lapisan ZnO dengan kualitas yang lebih baik sehingga meningkatkan performa solar cell heterojunction Cu₂O/ZnO/FTO.

Analisis Pengaruh Temperatur terhadap Yield dan Karakteristik Bio-Oil Hasil Pirolisis Plastik HDPE dan Serbuk Kayu Pinus Menggunakan Katalis Bentonit Alfarizky Pradirga; Dwi Lestari; Irawan Rusnadi; Lety Trisnaliani; Rima Daniar
Indonesian Journal of Multidisciplinary on Social and Technology Vol. 4 No. 3 (2026): Juli - Oktober
Publisher : PT Ilmu Data Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69693/ijmst.v4i3.12560

Penumpukan sampah plastik dan limbah biomassa yang belum dimanfaatkan secara optimal merupakan permasalahan lingkungan yang memerlukan solusi berkelanjutan. Penelitian ini bertujuan menganalisis pengaruh temperatur operasi terhadap yield dan karakteristik bio-oil hasil pirolisis campuran plastik High Density Polyethylene (HDPE) dan serbuk kayu pinus dengan rasio 2:1 menggunakan katalis bentonit. Proses pirolisis dilakukan pada reaktor fixed bed dengan variasi temperatur 250°C, 300°C, 350°C, 400°C, dan 450°C, massa bahan baku 2 kg, katalis bentonit 10% dari massa bahan baku, serta waktu operasi 120 menit. Karakteristik bio-oil yang dianalisis meliputi densitas, viskositas, nilai kalor, titik nyala, serta komposisi senyawa menggunakan Gas Chromatography-Mass Spectrometry (GC-MS). Hasil penelitian menunjukkan bahwa peningkatan temperatur operasi meningkatkan yield bio-oil dari 10,04% pada 250°C menjadi 13,02% pada 450°C. Densitas bio-oil menurun dari 0,7970 g/ml menjadi 0,7405 g/ml, sedangkan nilai kalor meningkat dari 8.083 cal/g menjadi 8.942 cal/g seiring kenaikan temperatur. Viskositas berfluktuasi pada rentang 3,01–6,77 cP dan titik nyala berada pada rentang 33,1–38,2°C. Kondisi operasi optimum diperoleh pada temperatur 450°C dengan yield 13,02%, densitas 0,7405 g/ml, viskositas 3,53 cP, nilai kalor 8.942 cal/g, dan titik nyala 33,1°C. Analisis GC-MS menunjukkan bio-oil didominasi oleh fraksi bensin (42,23%) dan fraksi solar (38,49%), diikuti fraksi kerosin (13,18%) dan fraksi pelumas (6,12%). Hasil ini menunjukkan bahwa campuran plastik HDPE dan serbuk kayu pinus berpotensi dikembangkan sebagai bahan baku bahan bakar cair alternatif, meskipun masih memerlukan proses upgrading lanjutan agar sesuai standar bahan bakar komersial.

SINTESIS BIODIESEL DARI MINYAK KELAPA MENGGUNAKAN KATALIS HETEROGEN LIMBAH CANGKANG TELUR AYAM DENGAN VARIASI KECEPATAN PENGADUKAN DAN WAKTU REAKSI Alpin Purnama; Yusril Ihza Mahendra; Lety Trisnaliani; Yuniar; Apri Mujiyanti
Chemical Engineering Journal Storage (CEJS) Vol. 6 No. 4 (2026): Chemical Engineering Journal Storage (CEJS)- August 2026
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v6i4.28970

Penelitian ini bertujuan menganalisis pengaruh penggunaan katalis CaO berbahan dasar cangkang telur ayam dan Baffled Stirred Tank Reactor terhadap yield serta karakteristik biodiesel dari minyak kelapa. Katalis CaO diperoleh melalui proses kalsinasi pada suhu 900°C selama 4 jam dan dikarakterisasi menggunakan X-Ray Diffraction (XRD). Proses transesterifikasi dilakukan pada suhu 60°C menggunakan katalis CaO 3% dengan variasi kecepatan pengadukan 200–600 rpm dan waktu reaksi 20, 40, dan 60 menit. Hasil penelitian menunjukkan bahwa katalis didominasi oleh fase kristalin CaO. Kondisi optimum diperoleh pada kecepatan pengadukan 400 rpm dan waktu reaksi 40 menit dengan yield biodiesel sebesar 88,7%. Penggunaan baffle terbukti meningkatkan yield dibandingkan reaktor tanpa baffle. Biodiesel yang dihasilkan memenuhi persyaratan ASTM D6751 dengan viskositas 4,87–4,91 cSt, densitas 0,867–0,872 g/mL, flash point 168,3–176,2°C, dan angka setana 65,2–69,6. Nilai kalor juga meningkat dari 34,14 MJ/kg menjadi 37,44 MJ/kg seiring bertambahnya waktu reaksi. Hasil penelitian menunjukkan bahwa katalis CaO dari cangkang telur ayam dan penggunaan Baffled Stirred Tank Reactor efektif meningkatkan yield serta kualitas biodiesel.

Co-Authors Ahmad Zydan Alhabsyi Alfarizky Pradirga Alpin Purnama Apri Mujiyanti Boni Junita Dwi Lestari Erlinawati Akil Faridatuljana Binti Mohd Noor Fatria Fatria Ida Febriana Indah Purnamasari Irawan Rusnadi Iriani Reka Septiana Isnandar Yunanto Marfitra. S Muhammad Noviansyah Nugraha Mutiara Putri Nadia Melisa Fitri Putri Afifa Nur Oktadina Rima Daniar Sahrul Effendy Selastia Yuliati Yuniar Yusril Ihza Mahendra Zahra Ananda Lanos Zikri, Ahmad

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