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All Journal Semesta Teknika Jurnal Pengabdian UntukMu NegeRI Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Surya Teknika Jurnal Pengabdian Masyarakat Waradin Jurnal Pengabdian Kepada Masyarakat Meambo JES-TM Social and Community Service
Lisa Legawati
Unknown Affiliation
Religion Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Penyuluhan Pemanfaatan Limbah Organik Sisa Dapur menjadi Eco Enzyme dengan Teknik Persuasif kepada Masyarakat di Perumahan Griya Rumaisha Tenayan Raya Ermal, Dini Aulia Sari; Dwi Annisa Fithry; Israyandi; Hadi Purwanto; Jusnita; Cici Maarasyid; Lisa Legawati; Rozar Rayendra; Suchy Arum Fitri; Suci Aderiani
Jurnal Pengabdian UntukMu NegeRI Vol. 7 No. 1 (2023): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jpumri.v7i1.4639

Abstract

Jenis dan variasi sampah dapat menunjukkan jumlah dan tingkat perekonomian penghuninya. Tingginya timbulan dan variasi sampah sering menjadi masalah pada beberapa perumahan. Kondisi rumah yang berdekatan, lahan kosong yang sedikit, kondisi TPS yang terbuka serta pengelolaan sampah yang kurang menjadi permasalahan bagi penghuni yang tinggal di perumahan tersebut. Kondisi ini dapat menjadi penyebab munculnya penyakit, bau busuk, serta lingkungan yang tidak sedap dipandang. Berdasarkan hal tersebut, maka perlu dilakukan kegiatan penyuluhan. Kegiatan penyuluhan ini bermaksud untuk memberikan informasi tentang sampah hasil rumah tangga, jenis pengelolaan yang sesuai, serta hasil pengelolaan jika sampah tersebut dapat diolah dan menjadi income. Teknik yang digunakan pada kegiatan pengabdian ini adalah pendekatan persuasif dalam pemilahan, pewadahan, dan pengumpulan sampah dari sumbernya. Fokus kegiatan pengabdian ini dilaksanakan di Perumahan Griya Rumaisha yang melibatkan ibu-ibu perumahan tersebut. Diharapkan dengan adanya kegiatan ini dapat meningkatkan pengetahuan ibu-ibu mengenai pengelolaan sampah yang dibuktikan dengan adanya perubahan di lingkungan perumahan Griya Rumaisha. Hasil pengelolaan ini juga nantinya dimanfaatkan sebagai pendapatan baru di pemukiman tersebut dengan membuat cairan eco enzyme
Thermogravimetric Analysis of Eucalyptus Leaves as An Alternative Fuel for Rural Areas Maarasyid, Cici; Idayu, Ida; Zulfansyah, Zulfansyah; Israyandi, Israyandi; Legawati, Lisa; Ermal, Dini Aulia Sari; Fithry, Dwi Annisa
Semesta Teknika Vol 27, No 1 (2024): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i1.20002

Abstract

The utilization of biomass waste as a substitute for conventional energy sources has gained popularity, and one possible source is the litter generated by eucalyptus plantations. The present study used thermogravimetric analysis (TGA) gain insight into the thermochemical characteristics of eucalyptus leaves. It was identified by heating the sample in a nitrogen environment from ambient temperature to 850oC at a rate of 10 oC/minute. Eucalyptus leaves have a high volatile matter (VM) content and a calorific value (CV) of 17.26 MJ/kg, according to the ultimate and proximate analysis. Additionally, the TGA results showed that eucalyptus leaves had a lower ignition temperature than other biomasses. Eucalyptus leaves began to devolatilize at 119 oC, reaching a peak temperature of 326 oC, and losing 68% of their weight as a result.
Pemanfaatan Tulang Ikan Patin (Pangasius sp.) sebagai Adsorben untuk Penjernihan Air Gambut Ermal, Dini Aulia Sari; Yayan Satria; Lisa Legawati; Cici Maarasyid; Israyandi, Israyandi; Dwi Annisa Fithry; Viona Aulia Rahmi; Delvina Sari
JURNAL SURYA TEKNIKA Vol. 11 No. 2 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i2.8331

Abstract

Peat water is raw water which is used as a source of clean water by the people of Pekanbaru. However, after testing according to the Regulation of the Minister of Health of the Republic of Indonesia for clean water standards No. 416/MENKES/PER/IX/1990 the results of measuring the color and turbidity value of peat water are above the quality standards, namely 219 TCU and 15.1 NTU. This value is very far from the color and turbidity quality standards with respective concentrations of 15 TCU and 5 NTU. Therefore, in this research, an adsorption process was carried out using an adsorbent from Patin bone waste (Pangasius sp.) typical of Riau province by utilizing a physical activation process to open pores and help facilitate absorption. The variable used in this research were adsorbent mass and stirring speed. For adsorbent mass there was a variation of 0.1; 0.3; 0.5; and 0.7 grams while the stirring speed was 50, 100, and 150 rpm with a stirring time of 120 minutes and each sample had a particle size of 100 mesh. The results of this adsorption process obtain the best efficiency value at Patin bone mass of 0.7 grams with a stirring speed of 100 rpm. The color reduction efficiency reached 96.35%, namely 8 TCU, while the turbidity reduction efficiency at Patin bone mass of 0.7 grams with a stirring speed of 100 rpm reached 92.72%, namely 1.1 NTU.
Identifikasi kemungkinan terjadinya Kebakaran di Kantin Instansi X, dengan Metode Failure Mode Anlysis (FMEA) dan Fault Tree Analysis (FTA) Ermal, Dini Aulia Sari; Legawati, Lisa; Maarasyid, Cici; Annisa Fithry, Dwi; Rawadi, Mhd Raihan; Gusmita Putri, Messy; Aderiani, Suci; Alva Dela, Gita
JURNAL SURYA TEKNIKA Vol. 10 No. 1 (2023): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v10i1.4917

Abstract

Kebakaran adalah salah satu masalah yang tidak terduga. Kerugian yang ditimbulkan tidak hanya dirasakan oleh pemilik kantin, melainkan seluruh aktivitas di sekitar kantin. Tujuan dari penelitian ini adalah untuk menghindari terjadinya kecelakaan kerja yang mengakibatkan terjadinya kebakaran pada kantin di instansi X. Pada penelitian ini proses identifikasi dan survey langsung dilakukan di lapangan, kemudian dilanjutkan dengan penerapan bantuan menggunakan FMEA (failure mode and effect analysis) dalam menentukan efek dan dampak yang muncul, menghasilkan nilai RPN. Hasil penilaian akan dideskripsikan dengan menggunakan metode FTA (fault tree analysis). Hasil survey dan identifikasi di lapangan ditemukan 3 penyebab utama kegagalan yaitu kondisi instalasi listrik, kondisi peralatan memasak yang tidak layak, dan kondisi kerja di kantin. Dari ketiga kategori tersebut diperoleh nilai RPN tertinggi yaitu kondisi instalasi listrik dengan nilai RPN 125 dan penyebab kegagalan dijelaskan dengan metode FTA.
Potensi Tandan Kosong Sawit sebagai Bahan Bakar Padat: Analisis Degradasi Termal Maarasyid, Cici; Idayu, Ida; Zulfansyah; Israyandi; Legawati, Lisa; Ermal, Dini Aulia Sari; Rawadi, Raihan; Olivia, Cindy; Fitri, Suchy Arum; Aderiani, Suci
JURNAL SURYA TEKNIKA Vol. 10 No. 2 (2023): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v10i2.6422

Abstract

The availability of oil palm empty fruit bunches in Indonesia could be an important source of biomass to be utilized as a solid fuel feedstock. In this work, the thermal behavior and degradation of oil palm emty fruit bunches was investigated with a thermogravimetric analyzer in nitrogen atmosphere. The samples were heated from room temperature to 900 oC at heating rates of 20 oC min-1. The ultimate and proximate analysis revealed that oil palm empty fruit bunches contains high volatile matter, fixed carbon and ash content while the caliric value was 17.87 MJ/kg. Thermogravic analysis results indicated thermal degradation of samples occurs in three stages, namely drying and evaporation, active degradation and passive degradation. In addition, active degradation commenced at 148 oC with a peak of degradation temperature of 322.5 oC resulting in 68.32% weight loss.
Brickets in A Review of The Philosophy of Science Fithry, Dwi Annisa; Legawati, Lisa; Aulia Sari Ermal, Dini; Maarasyid, Cici; Jusnita, Jusnita; Salsabila, Naia; Febrian, Amanda
JURNAL SURYA TEKNIKA Vol. 10 No. 2 (2023): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v10i2.6477

Abstract

Review draft briquettes in context philosophy knowledge this knowledge explains How to approach knowledge and can help us understand the production process, use, and impact environment briquettes. in perspective philosophy knowledge, production briquettes involve the use method scientific, like chemistry and engineering machines, to change biomass to become material burn solid. It involved understanding deep about traits chemistry and physics material standards, as well as the conversion process of energy. Impact environment from the use of briquettes. Using briquettes can influence the ecosystem and impact on the environment. Approach philosophy knowledge helps We dig questions about ethics use briquettes and effort to reduce the negative impact. The Aspect of social economy- related to the production and use of briquettes, like impact on the community local, and how knowledge can help understand the implications of this. This study gives an understanding deep about how briquettes can see through the lens of philosophical knowledge. This thing gives contribution is important in integrating knowledge, ethics, and impact socio-economic in understanding We technology energy alternatives like briquettes.
Techno-Economic Analysis of DME Production from Indonesian Brown Coal: A Preliminary Plant Design Luthfi, Alif; Nugraha, Mohd Farhan; Ramadhani, Shafira Rachma; Legawati, Lisa; Yolanda, Yogi; Maarasyid, Cici; Zulfansyah, Zulfansyah
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9331

Abstract

This article presents the preliminary plant design and techno-economic assesment of Dimethyl Ether (DME) production from coal. As the world’s third largest coal producer, Indonesia faces challenges in using low rank lignite due to its high moisture content, wgich limits direct combustion efficiency. The plant was designed to produce 210,000 tons of DME per year, supporting national effort to reduce LPG imports and improve energy security. The calculation include mass and energy balances, equipment sizing, and enviromental considerations suh as CO2 emissions management. Economic evaluation demonstrate project feasibility, with an internal rate of return of 24.28%, a payback period of 3.46 years, and a net present value of 39.60 million USD. Sensitivity analysis shows profitability is highly sensitive to DME price variations. Further research issyngas recommended to develop effective carbon capture strategies and evaluate lifecycle emissions to enhance DME production more enviromentally friendly and sustainable.
Briket Ramah Lingkungan Berbasis Limbah Organik: Integrasi Kertas Bekas Sebagai Perekat pada Limbah Pertanian Legawati, Lisa; Roza, Roza; Ermal, Dini Aulia Sari; Maarasyid, Cici; Israyandi, Israyandi; Fithry, Dwi Annisa
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9377

Abstract

One of the solid wastes from oil palm is the frond, which can be utilized to produce briquettes an alternative fuel. This study investigates the utilization of oil palm frond waste and sugarcane bagasse for briquette production, using different binders like tapioca flour and pulp at concentrations of 3%, 5%, and 8%. The research methodology involved comparing the moisture content, ash content, and calorific value of each treatment applied. The results showed that briquettes with 3% tapioka flour binder produced the best quality, with a moisture content of 3.6%, ash content of 4.4%, and a calorific value above 6,000 cal/g, meeting the quality standards of SNI 01-6235-2000. The implications of these findings indicate the potential of biomass briquettes as an environmentally friendly alternative energy source. However, this study was limited to laboratory testing without application trials or economic analysis. Further research is recommended to evaluate production scale and economic feasibility.
Pembuatan Sabun Cair dari Minyak Sawit di Desa Batu Belah Kabupaten Kampar Zuqni Meldha; Idral Amri; Zulfansyah Zulfansyah; Hari Rionaldo; Syamsu Herman; Nirwana Nirwana; Lisa Legawati; Salma Liska; Yogi Yolanda; Yola Bertilsya Hendri; Alltop Amri Ya Habib
Jurnal Pengabdian Masyarakat Waradin Vol. 5 No. 2 (2025): Jurnal Pengabdian Masyarakat Waradin
Publisher : Sekolah Tinggi Ilmu Ekonomi Pariwisata Indonesia Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56910/wrd.v5i2.643

Abstract

The demand for natural self-care products is rising as more people recognize the value of keeping healthy skin and protecting the environment. Cooking oil, which is a derivative of palm oil, is an ingredient that is easily found by people in Batu Belah Village, Kampar Regency. This material has great potential to be processed into value-added products such as liquid soap. This study focuses on the use of cooking oil as the primary ingredient for producing liquid soap, while also opening new economic opportunities for the village community. This initiative captured the interest of Batu Belah People.In an attempt to implement the technology, the community service team distribute the liquid soap to the neighborhood.
Workshop Pengenalan Bahan Kimia Berbahaya dan Penanganannya di Laboratorium Kimia SMA Negeri 6 Tualang Sugesti, Heni; Chandra, Yogi; Yola Bertilsya Hendri; Lisa Legawati; Salma Liska
Jurnal Pengabdian Meambo Vol. 4 No. 2 (2025): Jurnal Pengabdian Kepada Masyarakat MEAMBO
Publisher : PROMISE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56742/jpm.v4i2.137

Abstract

Kurangnya pengetahuan dan pemahaman mengenai penanganan bahan kimia berbahaya dan keselamatan berkerja di laboratorium dapat mengakibatkan terjadinya kecelakaan saat praktikum. Kegiatan pengabdian ini bertujuan untuk meningkatkan pengetahuan dan pemahaman siswa serta guru mata pelajaran kimia terhadap bahaya penggunaan bahan kimia berbahaya di laboratorium sekolah serta cara penanganannya yang cepat dan tepat. Workshop ini dilaksanakan di SMA Negeri 6 Tualang pada bulan April 2025 dengan melibatkan guru mata pelajaran Kimia dan siswa kelas XI sebanyak 38 orang. Metode yang digunakan meliputi tahapan persiapan dengan melakukan koordinasi awal dengan pihak sekolah untuk memperoleh informasi terkait kondisi laboratorium, penyampaian materi melalui presentasi interaktif, diskusi kelompok, demonstrasi langsung mengenai identifikasi bahan kimia berbahaya, prosedur penyimpanan, penggunaan alat pelindung diri (APD), penanganan limbah dan simulasi ketika terjadi kecelakaan kerja di laboratorium serta tahapan evaluasi berupa observasi langsung dan pemberian kuesioner berupa pre test dan post test. Hasil dan kesimpulan kegiatan ini menunjukkan adanya peningkatan pengetahuan dan pemahaman peserta mengenai klasifikasi-klasifikasi bahan kimia berbahaya, simbol bahaya, dan prosedur keselamatan kerja di laboratorium. Hal ini ditunjukkan melalui peningkatan signifikan nilai rata-rata dari pre-test ke post-test dan kegiatan ini juga berkontribusi dalam menumbuhkan budaya keselamatan di lingkungan sekolah serta memperkuat kesiapan siswa dalam mengikuti praktikum kimia dengan lebih bertanggung jawab.
Co-Authors Aderiani, Suci Alva Dela, Gita Amun Amri Annisa Fithry, Dwi Ardian Pratama Chandra, Yogi Cici Maarasyid D.d Zulfa Delvina Sari Dini Aulia Sari Ermal Dwi Annisa Fithry Febrian, Amanda Fithry, Dwi Annisa Fitri, Suchy Arum Gusmita Putri, Messy Habib, Alltop Amri Ya Hadi Purwanto Hari Rionaldo Haura Arnel, Ashilah Hendri, Yola Bertilsya Heni Sugesti Idayu, Ida Idral Amri Israyandi Israyandi Jusnita Jusnita Jusnita, Jusnita Luthfi, Alif Maria Peratenta Sembiring Nirwana Nirwana Nugraha, Mohd Farhan Olivia, Cindy Prayogo, Hidayat Ramadhani, Shafira Rachma Rawadi, Mhd Raihan Rawadi, Raihan Roza, Roza Rozar Rayendra Rusmana, Marcela Anandita Sajida, Gita Nur Salma Liska Salsabila, Naia Suchy Arum Fitri Suci Aderiani Sugesti, Heni Suhendri Suhendri Syamsu Herman Viona Aulia Rahmi Yayan Satria Yolanda, Yogi Zafira, Nesa Zidhan, Muhammad Zulfansyah Zulfansyah Zulfansyah Zulfansyah Zulfansyah Zuqni Meldha