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All Journal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Jurnal Penelitian Sains SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan JURNAL PENDIDIKAN TAMBUSAI Aptisi Transactions on Technopreneurship (ATT) Kinetika
Lety Trisnaliani
Politeknik Negeri Sriwijaya
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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PALM OIL INDUSTRY WASTE WATER TREATMENT WITH COAGULATION METHOD, FENTON AND ADSORPTION Jauhari, Taufiq; Trisnaliani, Lety; Purnamasari, Indah
KINETIKA Vol 4, No 2 (2013): KINETIKA 01072013
Publisher : Teknik Kimia Politeknik Negeri Sriwijaya

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Abstract

Crude palm oil waste water is waste water that resulted from the palm oil industry. If crude palm oil waste water is released to environment, so it can decrease enviromentset quality  because it contains pollutant organic compound. In this research waste water crude palm oil processed using alum as coagulant with dosage 5000 ppm. This step process was continued by using the concentration fenton Fe2SO47H2O 0.004 M and concentration H2O2 0.32 M. In the final process waste water was treated  by adsorpstion active carbon columb of 30 cm, 40 cm and 50 cm and flow rate 80 mL/minute, 110 mL/minute and 140 mL/minute. In flow rate of  80 mL/minute and height activated carbon columb 50 cm the BOD, COD and TSS reduction increased until 70.10 %, 59.37 % and 85.69 % respectively.
PENGARUH UKURAN PARTIKEL TERHADAP KECEPATAN ADSORPSI KARBONISASI DENGAN MENGGUNAKAN METODE ANALISA ISOTERM FREUNDLICH PADA PEMBUATAN KARBON AKTIF BATUBARA LIGNIT Trisnaliani, Lety
KINETIKA Vol. 8 No. 2 (2017): KINETIKA 01072017
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Karbon aktif adalah material yang berbentuk butiran atau bubuk yang berasal dari material yang mengandung karbon misalnya pada batubara, kulit kelapa dan sebagainya. Dalam penelitian isoterm adsorpsi arang aktif digunakan larutan asam asetat dalam berbagai variasi konsentrasi yaitu 1 N, 0.8 N, 0.6 N, dan 0.4 N bertujuan untuk mengetahui kemampuan arang untuk mengadsorpsi larutan asam asetat dalam berbagai konsentrasi pada temperatur konstan. Persamaan grafik Isotherm Adsorpsi Freundlich untuk karbon aktif dengan aktivasi tanpa karbonisasi adalah y = 0,9999x - 0.7787, sehingga didapat nilai Log k = -0.7787 dan 1/n = 0,9999. Maka nilai k adalah 0.1665 dan nilai n adalah 1,0001. Sedangkan persamaan grafik isotherm adsorbsi freunlich untuk karbon aktif dengan aktivasi dengan karbonisasi adalah y = 1,0003x - 0.78, sehingga didapat nilai Log k = -0.78 dan 1/n = 1,0003. Maka nilai k adalah 0.165 dan nilai n adalah 0,9997. Grafik ini sudah mendekati teori isotherm adsorpsi Freundlich yaitu grafik berupa garis linear.
STUDI TEKNOLOGI PERENGKAHAN PANAS DAN PENJENUHAN TRIGLISERIDA CRUDE PALM OIL PADA KONDISI BASA DENGAN TWO STAGES ELECTROCHEMICAL THERMAL CRACKING REACTOR Trisnaliani, Lety; Purnamasari, Indah
KINETIKA Vol. 5 No. 1 (2014): KINETIKA 01032014
Publisher : Politeknik Negeri Sriwijaya

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Abstract

The study was experienced using electrolyze by using two stages electrochemical thermal cracking reactor, zeolyte  as catalyst, silver as cathode and cuprum as anode. In this research, we used electrolyte solution for 2 kinds of pH  which  was  pH  10  and  pH  12  of  Potassium  Hydroxide  (KOH)  and  different  voltage  which  was  2,4,6,8,10  and  12  volt.  It  worked  in  1  atmosphere  with  electrolyze  for  1  hour,  heating  till  reaching  temperature  80 oC  for  1  hour, fogging process for 1 hour, and heating without electrolyze nor fogging about 30 minutes. From lubricity analyze,  this product is a fuel with high lubricity. The analyzer showing that cracking of triglyceride of crude palm oil has  same characteristics with diesel.
ACTIVATED CARBON PRODUCT QUALITY DEVELOPMENT BASED SHELL OIL PALM USING THE ACTIVATOR OF ZnCl2 Trisnaliani, Lety
KINETIKA Vol. 8 No. 1 (2017): KINETIKA 01032017
Publisher : Politeknik Negeri Sriwijaya

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Abstract

PT. Sawit Mas Sejahtera is a limited liability company whose efforts include oil palm plantations and palm oil mills. Waste generated is CPO (22.5%), Kernel (5.5%), Empty Bunch (21%), Fibre (12.5%), Shell (6.5%) and effluent (55%). The method used in this research is to utilize palm shell as a raw material preparation active carbon with the activation process. As for the preparation of activated carbon depends on the addition of activator ZnCl2 with variable concentrations of 5% to 25%. Based on the analysis that has been set, it can be concluded palm shells can be processed into activated carbon and activated carbon obtained the best on the size of 200 mesh and a concentration of 20% with a water content of 8.80%, ash content of 4.28%, the absorption of iodine 997.97 mg / L.
BIODIESEL PROCESS PRODUCTION FROM WASTE COOKING OIL USING MICROWAVES AND HIGH VOLTAGE Trisnaliani, Lety; Moulita, RA Nurul
KINETIKA Vol. 8 No. 3 (2017): KINETIKA 01112017
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Increasing fuel demand has an impact for decreasing fossil energy reserves. One of the government ways to solve this problem is by increasing the production of biomass fuels, for example biodiesel. Biodiesel can be produced from waste cooking oil through the transesterification stage that reacts oil molecules with alcohol and catalyst to produce methyl esters. Heating method that can be used is microwaves method. This method utilizes wave emission which is absorbed by the sample to make sample’s temperature being higher than surface’s temperature of the reactor’s wall. In the process of making biodiesel, there are several factors that affected heating process. There are ratio of waste cooking oil and methanol, an amount of catalyst, reaction temperature, voltage, and distance of electrodes. The effect of that factors can be seen from the result of the biodiesel’s rendement. From this research, we had ratio 5:1 of waste cooking oil and methanol got 85,. % rendement, 2% of catalyst got 87.12% rendement, 60oC reaction temperature got 88.88% rendement, 10 kV got 89.12% rendement, and 1 cm of electrode’s distance got 86.34% rendement. This result suggests that a biodiesel production prototype with microwaves and high voltage utilization can produce a high percentage of biodiesel rendement
STUDY OF THE INFLUENCE THE ACIDITY LEVEL OF SULPHURIC ACID TO THERMAL CRACKING AND TRIGLYCERIDE SATURATION OF CRUDE PALM OIL BY USING TWO STAGES ELECTROCHEMICAL THERMAL CRACKING Trisnaliani, Lety; Jauhari, Taufiq
KINETIKA Vol 4, No 2 (2013): KINETIKA 01072013
Publisher : Teknik Kimia Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8.45 KB)

Abstract

Crude Palm Oil (CPO) was experienced with electrolyze by using two stages electrochemical thermal cracking reactor, zeolyte as catalyst, silver as cathode and cuprum as anode. In this research, we used electrolyte solution for 2 kinds of concentrate which was 40 and 60% of sulphuric acid (H2SO4). It worked in 1 atm with electrolyze for 1 hour, heating till reaching temperature 80oC for 1 hr, fogging process for 1 hr, and heating without electrolyze nor fogging about 30 minutes. From lubricity analyze, this product is a fuel with high lubricity. The analyzer showing that cracking of triglyceride of crude palm oil has same characteristics with diesel. 
PROTOYPE HEAT EXCHANGER TYPE SHELL AND TUBE DITINJAU DARI VARIASI JARAK BAFFLE DAN LAJU ALIR MASSA UDARA PANAS Marawijaya, Gede; ., Tahdid; Trisnaliani, Lety; Purna, Candra
KINETIKA Vol. 10 No. 1 (2019): KINETIKA 01032019
Publisher : Politeknik Negeri Sriwijaya

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Abstract

The use of heat exchangers in the industrial world is very widely used both to reduce or where the temperature is in accordance with the needs of various products. The development of technology and science causes heat exchangers to experience various transformations. In its development, the heat exchanger undergoes a form transformation which aims to improve efficiency in accordance with its work function. The form of heat exchanger that is often used is shell and tube. The process in the heat exchanger type of shell and tube is by flowing the hot fluid in the tube and cold fluid in the shell with the type of cross flow flow. In the heat exchange process of shell and tube type heat exchangers, there are several things that need to be considered to obtain the effectiveness of maximum heat transfer, including the type of fluid, flow rate, temperature, heat transfer rate, pressure drop, shell dimension and tube (pipe), baffle distance, pitch distance, tube arrangement, and material type. The influence of various factors can be seen from the effectiveness and efficiency produced. Effectiveness of the highest heat transfer at variations in baffle distance of 15 cm is 82,13% and the highest efficiency at mass flow rate is 45 kg / hour which is 85,27%.
Preparation and Characterization of Ceramic Membrane Composition Variations in Pome Waste Treatment Isnandar Yunanto; Silviyati, Idha; Elvani, Lian; Trisnaliani, Lety
Aptisi Transactions On Technopreneurship (ATT) Vol 4 No 3 (2022): November
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v4i3.273

Abstract

Palm Oil Mill Effluent (POME) is waste generated by the palm oil industry consisting of solid, liquid and gaseous wastes. POME is decomposed in sewage ponds and allowed to decompose naturally. The residual waste generated by this industry is non-toxic but has high polluting power. To overcome this, it is necessary to treat waste by making ceramic membranes. The composition materials needed are clay, zeolite, sodium carbonate and boric acid. The manufacturing method is through the printing and combustion stages at a temperature of 900oC. The results showed that there was an effect of compositional variations on the quality of the final product, namely TSS rejection % 93.355 with a flux value of 0.2474 (L/m2min). From the parameter values obtained, it proves that the ceramic membrane is able to process POME with satisfactory effective results. The quality standard of palm oil liquid waste is in accordance with South Sumatera governor regulation number 8 of 2012 concerning quality standard of liquid waste for industrial, hotel, hospital, domestic and coal mining activities
Pelatihan penulisan ilmiah dan sosialisasi dampak negatif plagiasi dan perjokian untuk mahasiswa Teknik Mesin Universitas Tamansiswa Palembang Junita, Boni; Oktadina, Putri Afifa Nur; Putri, Mutiara; Nugraha, Muhammad Noviansyah; Trisnaliani, Lety; Effendy, Sahrul
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

Abstract

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.
Review of Carbon Capture Technology and Its Potential Application to Reduce Emissions In Heavy Equipment Exhausts Putri, Mutiara; Aisyah, Nyayu; Sugiyanto, Sugiyanto; Trisnaliani, Lety
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 10, No 3 (2025): October 2025
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

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Abstract

Carbon emissions from diesel engines, particularly those from heavy equipment, are a significant greenhouse gas emitter in industries such as construction, mining, and logistics. As global efforts toward decarbonization intensify, carbon capture technologies offer a solution to reduce global emissions. This paper conducts a literature review to explore current carbon capture technologies—including chemical sequestration, physical sequestration, and membrane separation—and evaluates their potential for integration with heavy equipment exhaust systems. Key considerations include system size, energy requirements, maintenance, and operational compatibility. Integration of exhaust heat recovery systems is also assessed as a complementary solution to address the high energy demands of carbon capture in the environment. Technical, economic, and regulatory challenges are discussed, along with potential innovations and use cases that could support future deployments. The findings indicate that although carbon capture is still in its infancy, targeted applications and modular designs supported by policy incentives could enable practical implementation in the near future. This review provides a foundation for future research, pilot projects, and system designs aimed at enabling sustainable operation of heavy equipment
Co-Authors ., Tahdid Aisyah Putri, Aisyah Aisyah, Nyayu Daniar, Rima Effendy, Sahrul Elvani, Lian Erlinawati Erlinawati, Erlinawati Idha Silviyati Indah Purnamasari Isnandar Yunanto Junita, Boni Lirantika, Lirantika Marawijaya, Gede Moulita, RA Nurul Mutiara Putri, Mutiara Nugraha, Muhammad Noviansyah Oktadina, Putri Afifa Nur Purna, Candra Rachman, Muhammad Hafiz Adhitya Sugiyanto - Tahdid Tahdid Taufiq Jauhari Vanesa, Vhairen Tri