Article Per Year (5 Year)
p-Index From 2021 - 2026
1.881
P-Index
This Author published in this journals
All Journal Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal IPTEK IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Sriwijaya International Seminar on Energy-Environmental Science and Technology Science and Technology Indonesia Emerging Science Journal Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) IKRA-ITH ABDIMAS Jurnal Teknik Kimia SRIWIJAYA JOURNAL OF ENVIRONMENT Oil Palm Research and Review Journal of Environmental and Science Education
Leily Nurul Komariah
Chemical Engineering Department, Faculty Of Engineering, Universitas Sriwijaya, Indralaya 30662, South Sumatera,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Other

Published : 21 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 21 Documents
Search

 1   2   3 
The effectiveness of palm-based additives in enhancing the performance of higher blend biodiesel in diesel engines Leily Nurul Komariah; Nucke Aurelia; Syahrul Tafkiri Syayiat; Faisal Akbar Adin
Oil Palm Research and Review Vol 1 No 1 (2020)
Publisher : Sawit Centre

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/oprr.v1i1.10

Abstract

The effectiveness of palm-based additives in enhancing the performance of higher blend biodiesel in diesel engines
Potensi dan karakteristik abu tandan kosong kelapa sawit sebagai katalis heterogen untuk produksi biodiesel R.A Dwi Putri Ananda; Leily Nurul Komariah; Novy Pralisa Putri; Susila Arita
Jurnal Teknik Kimia Vol 29 No 1 (2023): Jurnal Teknik Kimia
Publisher : Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jtk.v29i1.1551

Abstract

Tandan Kosong Kelapa Sawit (TKKS) merupakan limbah padat dengan volume yang cukup besar dari produksi kelapa sawit. Dari total 24,25% TKKS yang dihasilkan, saat ini pemanfaatan limbahnya masih jauh dari potensinya sekitar 95,45 ton/ tahun yang dihasilkan tidak dimanfaatkan dengan baik. Tandan kosong kelapa sawit dapat dikonversi menjadi abu yang siap dipakai untuk proses produksi biodisel melalui reaksi transesterifikasi. Hasil Uji karakteristik menunjukkan bahwa abu TKKS dapat menjadi katalis yang potensial karena menunjukkan kadar kalium mencapai 48,25% . Partikel katalis memiliki cross section area 16.2 A2/mol dengan luas permukaan 0,012 m2/g dan total volume pori katalis 0,007674 cc/g. Dalam kajian ini juga dilakukan proyeksi ketersediaan TKKS dari perkebunan sawit dan dikorelasikan dengan proyeksi kebutuhan katalis untuk industri biodiesel. Setiap tahun diperkirakan sedikitnya terdapat 15,5 juta ton TKKS yang dapat dikonversi menjadi abu sawit melalui proses torefaksi dan sejenisnya. Kebijakan penggunaan biodisel B35 di tahun 2023 diperkirakan akan meningkatkan volume produksi biodisel sampai 13,5 juta kL. Dengan demikian diperkirakan kebutuhan katalis komersial mencapai 120-140 ribu ton per tahun. Melalui neraca massa TKKS menjadi katalis abu TKKS, dimungkinkan tersedia 2,33 juta ton abu TKKS untuk dimanfaatkan sebagai katalis produksi biodiesel. Neraca massa konversi TKKS menjadi abu menunjukkan bahwa 15%-b abu yang siap dipakai menjadi katalis dapat dihasilkan dari setiap ton TKKS.
Taguchi Experiment Design for DES K2CO3-Glycerol Performance in RBDPO Transesterification Susila Arita; Leily Nurul Komariah; Winny Andalia; Fitri Hadiah; Cindi Ramayanti
Emerging Science Journal Vol 7, No 3 (2023): June
Publisher : Ital Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/ESJ-2023-07-03-018

Abstract

Biodiesel production using novel glycerol and potassium carbonate-based catalysts has not been developed under the Taguchi technique. This study aims to determine the most influential parameter in biodiesel production from refined bleach-deodorized palm oil (RBDPO) using DES K2CO3-Glycerol as the novel catalyst. The raw material was subjected to transesterification at the desired reaction parameters estimated by the orthogonal 16-run (L16) approach with 2 levels and 4 factors of the Taguchi technique. Signal-to-noise ratio (SNR) and ANOVA were used to confirm the predicted value. From the results, the catalyst is the most influential variable in the TG value of biodiesel, placed in the first rank of the influence factor. Biodiesel production with a minimum total glycerol value (0.210%) using DES K2CO3-Glycerol as a catalyst is most optimally produced at 95 °C for 4 h and 400 rpm using 30 wt% methanol and 4 wt% catalysts achieved by the Taguchi technique. The biodiesel obtained from RBDPO complies with the required international standards. Doi: 10.28991/ESJ-2023-07-03-018 Full Text: PDF
Kinetics of Homogeneous Reaction of Potassium Methoxide Based on K2CO3 Catalyst in Transesterification of RBDPO to Biodiesel Salam, Yosirham Abdu; Komariah, Leily Nurul; Hadiah, Fitri; Arita, Susila
Science and Technology Indonesia Vol. 9 No. 1 (2024): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.1.28-35

Abstract

Biodiesel production is generally catalyzed by potassium methylate or sodium methylate catalysts based on KOH and NaOH and these catalysts are still imported. The search for a cheap and effective catalyst continues to be carried out by researchers. One of the catalyst support materials currently in use involves impregnating K2CO3 with various substances, resulting in a heterogeneous catalyst. In this study, it was tried to use K2CO3 dissolved in methanol to produce a homogeneous potassium methylate catalyst. Potassium methylate-based homogeneous catalyst K2CO3-methanol is proven to have a very high function in the transesterification reaction of Refined Bleached Deodorized Palm Oil (RBDPO) into biodiesel, this is evidenced by the use of a catalyst percentage of 2% w and 30% w methanol to the weight of RBDPO resulting in an acid content in biodiesel of only 0.12% and a total glycerol of 0.124% in reaction time 3 hours, with the purity of the methyl ester in biodiesel reaching 98.80%. Meanwhile, for the calculation of homogeneous reaction kinetics, a reaction rate equation is produced where the order of the RBDPO transesterification reaction is order 2 (two) and the reaction rate constant is 0.0044.
Pengoptimalan limbah kulit buah sebagai pupuk organik cair dengan molase dan bioaktivator EM4 untuk peningkatan produktivitas pertanian Wahyuningsih, Dwi Retno; Cundari, Lia; Komariah, Leily Nurul; Arita, Susila; Alisan, Cinthya Putri; Andini, Handalia Putri; Putri, Anisyah Kamila; Sinta, Eis Candra
Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Vol 7 No 2 (2024)
Publisher : University of Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jipemas.v7i2.20971

Abstract

Sisa hasil perkebunan, khususnya pada komponen yang tidak terpakai seperti kulit buah-buahan dapat dimanfaatkan menjadi pupuk organik cair dengan penambahan EM4, molase, dan air cucian beras. Pengabdian ini dilaksanakan di Desa Tanjung Pering, Kecamatan Indralaya Utara, Kabupaten Ogan Ilir, Sumatera Selatan. Desa Tanjung Pering sebagian besar penduduknya bermata pencaharian sebagai petani, sehingga memiliki potensi tanaman yang berlimpah. Metode dalam riset berbasis pengabdian ini dilaksanakan melalui metode Participatory Rural Approach (PRA). PRA merupakan metode pendidikan berbasis masyarakat melalui program penyuluhan, pelatihan, demonstrasi, dan pendampingan. Variabel tetap yang ditentukan dalam percobaan ini yaitu jumlah limbah kulit buah-buahan dan volume air cucian beras. Variabel bebas yang digunakan yaitu volume EM4 dan molase. Hasil dari riset berbasis pengabdian masyarakat, menunjukan kondisi optimum pupuk organik cair yaitu dengan konsentrasi EM4 sebanyak 20 ml dan molase 10 ml.  Dari hasil riset berbasis pengabdian masyarakat ini juga pembuatan pupuk organik cair menggunakan limbah kulit buah-buahan dapat digunakan secara efektif sebagai pupuk dan dapat diaplikasikan ke tanaman cabai yang terbukti dengan meningkatnya jumlah daun sebanyak 67% dan tinggi tanaman sebanyak 73%. Pengabdian ini dapat menjadi kegiatan berkelanjutan untuk menghasilkan pupuk organik cair dari limbah dan pemanfaatannya bagi pertanian di Desa Tanjung Pering.
Pemberdayaan Masyarakat Tanjung Seteko Mengelola Sampah Sebagai Eco-Enzyme Mewujudkan Zero Waste Berkelanjutan Komariah, Leily Nurul; Cundari, Lia; Riady, M. Ihsan; Afrah, Bazlina Dawami; Gayatri, Rianyza; Anggraini, Dwi; Fitri, Rizza Fadillah; Al-Faiz, Ahmad Haris; Zalman, Arjun; Ariva, Helmi
IKRA-ITH ABDIMAS Vol. 9 No. 2 (2025): Jurnal IKRAITH-ABDIMAS Vol 9 No 2 Juli 2025
Publisher : Universitas Persada Indonesia YAI

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Desa Tanjung Seteko di Kecamatan Indralaya, Kabupaten Ogan Ilir, Sumatera Selatan, memiliki penduduk yang terdiri dari keluarga dengan ibu rumah tangga sebagai anggota keluarga utama. Penggunaan detergen kimia sebagai pembersih lantai di desa ini seringkali mengakibatkan dampak lingkungan negatif akibat zat kimia. Untuk mengatasi masalah ini, solusi ramah lingkungan adalah dengan memanfaatkan sampah organik sebagai bahan baku eco-enzyme, cairan serbaguna yang mengandung alkohol, enzim, dan unsur hara, yang dapat digunakan sebagai pembersih lantai alternatif. Desa Tanjung Seteko memiliki potensi besar dalam menghasilkan limbah organik dari perkebunan dan rumah tangga, tetapi pengetahuan masyarakat dalam mengubahnya menjadi produk bernilai masih rendah. Kegiatan ini bertujuan untuk memberdayakan masyarakat dalam mengolah sampah organik menjadi pembersih lantai ramah lingkungan. Metodenya mencakup tahap pra-pelaksanaan, pelaksanaan, dan evaluasi. Hasil uji menunjukkan efektivitas eco-enzyme dalam membunuh kuman mencapai 50%. Program ini menciptakan nilai tambah dari sampah organik dan mendapat respons positif dari masyarakat untuk mewujudkan zero waste berkelanjutan.
The Impact of COVID-19 Pandemic on Gross Regional Domestic Product Growth and Tropospheric Nitrogen Dioxide Pollution in South Sumatra Province, Indonesia Rendana, Muhammad; Faizal, Muhammad; Said, Muhammad; Komariah, Leily Nurul; Izzudin, Muhammad
Journal of Environmental and Science Education Vol. 4 No. 1 (2024): Journal of Environmental and Science Education : April 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jese.v4i1.453

Abstract

The objective of the study was to examine the spatial and temporal variation of the tropospheric NO2 column compared with the economic growth during the COVID-19 pandemic. Therefore, the satellite based tropospheric NO2 was acquired from the Aura Satellite during 2019-2021 over the South Sumatra region of Indonesia. The GIS analysis was conducted to produce the quarterly tropospheric NO2 map over the study area. In this study, the gross regional domestic product (GRDP) was used as a benchmark for economic growth. The GRDP would relate to the air pollution to identify possible anthropogenically induced NO2 pollution. The result indicated the GRDP growth significantly decreased when the tropospheric NO2 concentration experienced a great reduction during 2020 (Quarters III-IV). The economic growth reduced from 5.79 to -1.58 during 2019-2020. It was noted that during the decline in GRDP, the variation of tropospheric NO2 was decreased by about 33%.
Effectiveness of Reducing Ammonia Levels in Hospital Wastewater Using A Combination of Bagasse Bio Adsorbent and Nanofiltration Membrane Lestari, Laily Noor Fitri; Nasir, Subriyer; Komariah, Leily Nurul
Jurnal IPTEK Vol 29, No 1 (2025)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2025.v29i1.7691

Abstract

The increasing environmental impact caused by hospital wastewater, particularly due to its ammonia content, necessitates innovative treatment methods. This study investigates the effectiveness of a combination of sugarcane bagasse-based activated carbon bio-adsorbent and nanofiltration membrane technology to reduce ammonia concentrations in hospital wastewater. The activated carbon was produced through carbonization at 550°C and chemical activation using 10% H2SO4. Adsorption experiments were conducted by varying bed heights (5, 7.5, and 10 cm) and flow rates (2, 3, and 4 L/min), followed by nanofiltration at 25, 30, and 35 Psi pressures. Results showed that the combined treatment reduced the wastewater pH from 9.08 to 6.53 and ammonia concentration from 4.61 mg/L to 0.02 mg/L, successfully meeting regulatory standards. This indicates that the integrated method effectively decreases ammonia levels and improves wastewater quality before discharge.
Synthesis of Zeolite from Coal Bottom Ash Using Hydrothermal Method as An Adsorbent for Heavy Metals Cd, Pb, Fe, and Cu Setiawan, Yayat; Bahrin, David; Komariah, Leily Nurul
Jurnal IPTEK Vol 29, No 1 (2025)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2025.v29i1.7715

Abstract

This study aims to synthesize zeolite from coal combustion bottom ash using the hydrothermal method and evaluate its effectiveness in adsorbing heavy metals—specifically cadmium (Cd), lead (Pb), iron (Fe), and copper (Cu). Bottom ash was treated via alkali fusion at 750°C, followed by acid activation with 1 M HCl to extract silica and alumina. Zeolite synthesis was hydrothermal at 100°C with 6, 12, and 24 hours of crystallization. Sodium aluminate (NaAlO2) was added to adjust the Si/Al ratio and enhance structural stability. The synthesized zeolites were characterized using X-ray Fluorescence (XRF) and Scanning Electron Microscopy (SEM). The sample crystallized for 12 hours and exhibited the highest SiO2/Al2O3 ratio, measuring 3.73. Adsorption tests revealed optimal performance at pH 5–9 and 120 minutes contact time, achieving removal efficiencies of 97.84% for Pb2+, 99.47% for Cd2+, 99.73% for Fe2+, and 99.91% for Cu2+. These findings demonstrate that bottom ash-derived zeolite is a promising, low-cost adsorbent for heavy metal removal from wastewater. It supports use in sustainable and long-term industrial effluent treatment systems.
Benefisiasi Sampah Organik Menjadi Eco-Enzyme Pengawet Buah Tomat untuk Siswa SMK Negeri 1 Tanjung Batu Cundari, Lia; Komariah, Leily Nurul; Arita, Susila; Gayatri, Rianyza; Fitri, Rizza Fadillah; Anggraini, Dwi; Rahmadian, Muhammad R; Annafi, Muhammad
IKRA-ITH ABDIMAS Vol. 9 No. 3 (2025): Jurnal IKRAITH-ABDIMAS Vol 9 No 3 November 2025
Publisher : Universitas Persada Indonesia YAI

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Benefisiasi sampah kulit buah yang biasanya tidak diolah kemudian diolah menjadi eco-enzyme dapat menjadi sumber penghasilan. Kegiatan pengabdian kepada masyarakat dilaksanakan di SMK Negeri 1 Tanjung Batu, Kabupaten Ogan Ilir, Sumatera Selatan, Indonesia. Metode yang digunakan yaitu survai sasaran, analisa situasi dan permasalahan, penelitian dan purifikasi, aplikasi produk, pelatihan dan pendampingan. Resepnya yaitu 900 gram kulit buah, 3 liter air, 300 gram gula merah, dan 30 gram ragi fermipan. Eco-enzyme terbukti mengawetkan buah tomat. Tomat yang diperlakukan dengan eco-enzyme menunjukkan tanda kerusakan pada hari ke-15, sementara tomat diperlakukan dengan chitasil mulai memburuk pada hari ke-5. Berdasarkan hasil survei, kegiatan ini dinilai sangat baik dalam menambah kompetensi siswa dilihat dari 63% siswa memberikan nilai 5, dan 21% siswa memberikan nilai 4. Kegiatan ini tidak hanya berkontribusi dalam mengurangi limbah organik dan meningkatkan kesadaran lingkungan, tetapi juga membuka peluang ekonomi baru melalui pemanfaatan sampah kulit buah menjadi produk bernilai jual seperti eco-enzyme.
Co-Authors A. Zulkarnain Ariko Afifah Akhwan Al-Faiz, Ahmad Haris Alfid Revtan Effriandi Alisan, Cinthya Putri Andini, Handalia Putri Annafi, Muhammad Ariva, Helmi Bazlina Dawami Afrah Cundari, Lia David Bahrin Desyandri Desyandri Dewi Sri Dwi Anggraini Faisal Akbar Adin Fitra Armando Fitri Hadiah Fitri Hadiah Fitri, Rizza Fadillah Gayatri, Rianyza Heriyanto Heriyanto Izzudin, Muhammad Lestari, Laily Noor Fitri Lutfia Rahmiyati M Ihsan Riady Muhammad Faizal Muhammad Rendana MUHAMMAD SAID Novy Pralisa Putri Nucke Aurelia Oki Alfernando Oki Alfernando Poedji Loekitowati Hariani Putri, Anisyah Kamila R.A Dwi Putri Ananda Raalyka Dea Phihimyl Rahmadian, Muhammad R Ramayanti, Cindi rendana, muhammad Rosmawati Rosmawati Salam, Yosirham Abdu Sesti Roima Setiawan, Yayat Setiyawan, Bambang Dwi Sinta, Eis Candra Siti Zahra Subriyer Nasir Susila Arita Susila Arita Susila Arita Syahrul Tafkiri Syayiat Tuty Emilia Agustina wahyuningsih, dwi retno Winny Andalia Zalman, Arjun Zen, Muhammad Rizky