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Survei Geolistrik untuk Pengembangan Irigasi Air Tanah di Kelurahan Lamatti Rilau - Sinjai, Sulawesi Selatan Muhammad - Ramli; Sufriadin -; Aryanti V A; Irzal Nur; Meinarni Thamrin; Sri Widodo
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 1 No 2 (2018): Improving Quality of Life within Society
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1072.889 KB) | DOI: 10.25042/jurnal_tepat.v1i2.34

Abstract

Daerah Lamatti Rilau-Sinjai Utara merupakan daerah dengan bentang alam yang berbukit-bukit. Kondisi bentang alam tersebut menjadi kendala dalam pemenuhan kebutuhan air irigasi pertanian dengan pemanfaatan air permukaan. Oleh karena itu, diperlukan pengembangan air tanah untuk mensuplai kebutuhan air irigasi tersebut sebagai upaya peningkatan produksi. Pengembangan sumber daya air tanah terdiri atas beberapa tahapan, namun hal yang paling mendasar adalah identifikasi keterdapatan air tanah di bawah permukaan. Metode investigasi yang sangat popular adalah pengukuran tahanan jenis batuan. Nilai tahanan jenis batuan merupakan representasi dari variasi karakteristik fisik dan kimia batuan. Oleh karena itu, hubungan antara jenis batuan dan nilai tahanan jenis merupakan dua hal yang menjadi dasar analisis dalam kegiatan ini. Daerah Lamatti Rilau – Sinjai Utara tersusun atas material batuan sedimen Formasi Walanae(Tmpw), Batuan Gunungapi Lompobatang (Qlv) dan Endapan aluvium dan pantai (Qac). Pengamatan lapangan menunjukkan sejumlah singkapan batupasir yang berpotensi sebagai lapisan pembawa air. Nilai tahanan jenis batuan tersebut bervariasi dari 2,0 – 104,0 ohm-m. Variasi nilai tersebut menunjukkan bahwa pada kedalaman tertentu terdapat lapisan pembawa air tanah. Dari 3 titik investigasi geolistrik, titik GL-3 merupakan lokasi yang dapat lakukan pengembangan sumur produksi air tanah dengan kedalaman sumur 100 m.
Desain Kompor Mobile Briket Batubara dan Biomassa Pada Daerah Bencana Widodo sri; Meinarni Thamrin; Sufriadin -; Irzal Nur; Asran Ilyas; Monika Sroyer
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 2 No 2 (2019): Aplikasi Teknologi untuk Hidup Masyarakat yang Lebih Baik
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (898.744 KB) | DOI: 10.25042/jurnal_tepat.v2i2.99

Abstract

Big flood disaster in South Sulawesi Province has occurred on January 22 and 23 2019. This event is one of the disasters that is quite severe for the City of Makassar and its surroundings. This incident encouraged the community service team to serve the community. Community service program UNHAS-Community Partnership Program (PPMU-PK-M) has partnered with one of the business units (UD Prima Teknik) which is engaged in fence welding and building maintenance needs. UD Prima Teknik is located in Antang Village, Manggala District, Makassar City. UD Prima Teknik is a partner who has helped the community service team in designing mobile stoves fueled with coal and biomass briquettes. The stove that has been designed has been socialized and used for cooking needs in meeting food needs in disasters areas. This stove is designed from iron, strong, resilient, and easy to carry anywhere (especially to disasters areas). The fuel used on the stove is coal, wood or wood charcoal (biomass) briquettes. The choice of fuel, besides being easy to carry on a trip, is also a very low risk of danger compared to gas stoves that are mostly used by the community at this time. If in conditions of limited fuel briquettes and wood charcoal, then this stove can also use wood fuel that is in the vicinity of the disaster area. In disaster conditions in an area, the difficulty that is often experienced by the community is the difficulty of the supply / assistance of ready-to-eat food because of limited kitchen facilities (tools for cooking).
Sosialisasi Status Tingkat Trofik Sungai Je’neberang Kabupaten Gowa Sulawesi Selatan Meinarni Thamrin; Ulva Ria Irfan .; Meutia Farida .; Kaharuddin .; Rohaya Langkoke .; Ratna Husain .; M. Fauzi Arifin .; Haerany Sirajuddin .; Asri Jaya .; Adi Maulana .; Sahabuddin .; M. Zulhuzair B .; Baso Resky Maulana .
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 5 No 1 (2022): Kebersamaan dalam Membangun Masyarakat Tangguh dan Gesit
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v5i1.254

Abstract

The Je'neberang River supports the lives of the people of Gowa and Makassar both ecologically and economically. Therefore, this river must be conserved starting from the upstream, downstream to the estuary, one of which is by assessing its trophic status. Trophic status is an indicator of the fertility level of water that can be measured from nutrients, chlorophyll-a content, brightness levels, and other biological activities that occur in an aquatic environment. This research-based community service aims to determine the trophic level status of the Je'neberang River which has been socialized to the community. Based on the output of data analysis obtained, this service activity is focused on educating partners, which is part of socialization. The method is divided into two stages, namely the stage of data collection and testing and the stage of socialization to partners. Socialization to partners is divided into four stages, namely preparation or pre-activity, preparation of socialization materials, implementation of socialization, and evaluation of the sustainability of activities. Socialization activities at the crossing location between Mallengkeri (Makassar) sub-district to the Taeng area in Gowa Regency. Socialization is in the form of countermeasures so that the rate of trophic level can be slowed down naturally, by not using the Je'neberang River as a waste disposal site. The condition of oligotrophic status on the Je'neberang River has been socialized to the community around river users, how important it is to maintain balance or nutritional conditions in the river to preserve the biota/organisms that live in the river.
Analisis Penurunan Capaian Target Produksi Bijih Nikel Menggunakan Metode Fault Tree Analysis di PT Ifishdeco Provinsi Sulawesi Tenggara Anas, Aryanti Virtanti; Parissing, Yoshita P; Nur, Irzal; Sufriadin, Sufriadin; Purwanto, Purwanto; Thamrin, Meinarni; Prasetyono, Agus
Jurnal Penelitian Enjiniring Vol 24 No 1 (2020)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jpe.052020.07

Abstract

Abstrak Proses produksi berarti menghasilkan suatu produk yang bernilai guna. Dalam suatu perusahaan pertambangan, produksi merupakan hal yang sangat penting, sehingga diperlukan perencanaan yang matang. Perusahaan menargetkan jumlah bahan galian yang akan diproduksi baik dalam jangka panjang, menengah maupun jangka pendek. Operasi produksi PT. Ifishdeco menggunakan bantuan alat gali muat excavator Komatsu PC 300 dimana terjadi penurunan produksi bijih nikel sebesar 19,94%. Target produksi sebesar 149.934 mt, namun capaian produksi hanya sebesar 116.603mt. Oleh karena itu, penelitian ini dilakukan untuk mengetahui faktor utama dan nilai probabilitas penyebab turunnya capaian produksi. Salah satu metode yang dapat digunakan untuk menganalisis faktor utama penyebab penurunan capaian produksi adalah menggunakan Fault Tree Analysis (FTA). Persamaan logika top down dari Fault Tree Analysis disubstitusi ke dalam aljabar Boolean hingga diperoleh minimal cut set. Minimal cut set merupakan persamaan akhir yang merincikan top down. Top event penurunan capai target produksi memiliki empat top down, yaitu faktor pengisian, kesiapan fisik alat, efektivitas kerja, dan waktu edar alat gali muat. Berdasarkan nilai probabilitas basic event tertinggi yang bernilai 1, maka faktor utama penyebab penurunan capaian produksi adalah dari faktor umur pakai alat tua, penjadwalan perawatan tidak teratur, kualitas alat buruk, dan proses selective mining. Abstract Analysis of Decrease in Nickel Ore Production Targets Using the Fault Tree Analysis Method in PT Ifishdeco, Southeast Sulawesi Province. Production process meant produce product with beneficial value. At the mining company, production was very important, so it needed to be well-planned. Company was making target amount of digging material to be produced in long term, middle term, and short term. Production operation at PT Ifishdeco utilized digger loader equipment namely excavator Komatsu PC 300. There was decreasing in nickel ore production of 19,94%. Production target was 149,934 mt, but the company was only able to meet 116,603 mt. Objective of this study was to know main factor and probability value which caused the low production performance. One of methods to be used to analyze the main factor was Fault Tree Analysis (FTA). Top down logical equations of Fault Tree Analysis was substituted into Boolean algebra to get minimal cut set. Minimal cut set was a formula of the top down and used to calculate probability. Top event of the decreasing of the production target had four top downs which were filling factor, mechanical availability, effectivity of use, and cycle time of digger loader. Based on the highest probability of basic event which value was equal to 1, the main factor caused the decreasing of productivity were lifetime of equipment, unscheduled of maintenance, low quality of equipment, and selective mining. Kata Kunci: Excavator, Work Effectivity, Boolean, Cut Set, Probability
Geocomputation and Spatial Analysis Applied for Geological Mapping: A Case Study in Palopo, South Sulawesi, Indonesia Langkoke, Rohaya; Ahmad, Asmita; Thamrin, Meinarni; Husain, Ratna; Iqbal, Muhammad
Jurnal Ecosolum Vol. 13 No. 1 (2024): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v13i1.33157

Abstract

In searching for a track record of earth formation, people tend to interpret field data in a way that limits the potential of history and explanation, which is often less influenced by theory and available facts, this requires valid data gathered intellectually. Geocomputing, which is the digital processing of geographic data, is a relatively recent field that reflects a wide range of research methodologies and their application to help solve problems in machine learning, geostatistics, image processing, and spatial analysis, among other areas. The purpose of this study was to assess the effectiveness of using geocomputational methods with Avenza Map and ArcGIS. This study uses geocomputation and spatial analysis to carry out geological mapping at a scale of 1:25,000 located in the Battang area, West Wara District, Palopo City, South Sulawesi. Two aspects are the main focus in implementing this research method, namely when mapping by relying on Avenza with a base map sourced from the Rupa Bumi Indonesia (RBI) map and on data management using the ArcGIS application to become a 3D map. Lithological of the study area showed basalt, porphyry basalt, and phyllite. The geological structure that develops in the research area is joint and fault. Avenza Map work with spatial analysis in ArcGIS is obtained cognitively, involving the relationship between individual conditions, tools, and terrain conditions. It can be stated that the use of avenza on smartphones in this modernization condition is more effective. This research allows for a review of the practical level of use of computer methods ranging from mapping to data management. Regarding implementing cognitive mapping, Avenza Map and ArcGIS can be recommended tools in geo-computation techniques as more effective support for recording and managing data while still paying attention to noise that may occur as a barrier to data accuracy.
PKM Community Partnership Program: Strengthening the Capacity of the Salenrang Village Community, in Optimizing the Management of Geopark Area Geotheritage, Maros Regency South Sulawesi Province Sirajuddin, Haerany; Pachri, Hendra; Imran, A. M.; Husain, Jamal Rauf; Langkoke, Rohaya; Husain, Ratna; Farida, Meutia; Maulana, Adi; ., Sultan; ., Agustinus; Thamrin, Meinarni; ., Safruddim; Hidayah, Bahrul; Fajrin, Muh.; Azrul, Muh. Zulfahmi; Ikhsan, Nurul
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 1 (2024): Community Development
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i1.372

Abstract

Indonesia is a country that has many islands and is rich in tourist destinations such as natural tourism, history, religion, culture, and so on. This attracts foreign tourists to visit or travel to Indonesia. One of the leading destinations in South Sulawesi which attracts foreign and domestic tourists is the Rammang-Rammang Karst in Maros which is known as the largest karst in Indonesia and is also a Global Karst Geopark Area approved by UNESCO. Rammang-Rammang Karst is an area that has a unique panorama, namely the type of karst, namely, tower karst with the natural landscape shape (geomorphology) of the Maros-Pangkep Karst area. Increasing the capacity of the Salenrang Village community is urgently needed so that the dissemination of geology-based information is more optimal. Therefore, the Department of Geological Engineering, Faculty of Engineering, Hasanuddin University, in collaboration with the Salenrang Village Government, organized a Laboratory Based Education (LBE) Service to increase the capacity of the people of Salenrang Village, Maros Regency. The methods used in this LBE event are observation, socialization and presenting information on tourist destinations through pamphlets and brochures. The observation method is carried out with the aim of systematically obtaining data on objects that will be socialized at the LBE service location in detail. Socialization was carried out to the Salenrang Village community about the tourism potential and geological conditions of the Rammang – Rammang Karst by distributing brochures and pamphlets to the Salenrang Village community in the LBE event area. Based on the results of the questionnaire, around 63% of visitors understand geological information in the tourist area, making it a challenge to disseminate better information. Through this LBE event, the people of Salenrang Village have proven that scientific information related to geological characteristics is very helpful in managing the geoheritage of the Rammang Rammang Area so that the increase in visitors will increase.
Strengthening rock analysis skills through petrology and petrography training for vocational school students majoring in Geology and Mining Engineering, Makassar City Farida, Meutia; Irfan, Ulva Ria; Maulana, Adi; Sirajuddin, Haerany; Alimuddin, Ilham; Umar, Hamid; Thamrin, Meinarni; ., Sahabuddin; ., Maulana; Ikhwana, Nur; Asfar, Suryawan
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 6 No 2 (2023): Let us Collaborate for Community Issues
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v6i2.423

Abstract

Over the last 2 decades, the need for the application of geosciences has become increasingly in society, geological natural disasters have made various levels of society aware of the importance of knowledge and understanding of the geological conditions of the Indonesian Archipelago. One of the impacts is the increasing number of vocational schools and universities providing earth education. Therefore, a curriculum that includes "Earth Science" as part of its subjects is needed. Vocational High School (SMK) Applied Techno Aviation, Department of Geological and Mining Engineering, Makassar City produces employees who are ready to be deployed in the field to work as technicians, so adequate skills are required in rock identification. Therefore, this training aims to improve students' skills as initial in improving the quality of their introduction to minerals and rocks. The results of this training show a positive trend in student test results by 5% - 27% improving and strengthening student skills, especially in petrology and petrography, is necessary to develop student quality.
Geocomputational Method to Determine the Effect of Serpentinized Ultramafic Rocks on Laterite Nickel Distribusion Langkoke, Rohaya; Tonggiroh, Adi; Thamrin, Meinarni; Al Amir, Umar
International Journal Software Engineering and Computer Science (IJSECS) Vol. 4 No. 3 (2024): DECEMBER 2024
Publisher : Lembaga Komunitas Informasi Teknologi Aceh (KITA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijsecs.v4i3.3113

Abstract

Administratively, the study area is located in Wolo District, Kolaka Regency, Southeast Sulawesi Province. This research aims to assess the relationship between the serpentinization process and the grades and distribution of laterite nickel. The methods employed include data collection through drilling, which involves logging procedures and laboratory analyses such as petrographic and geochemical analyses (X-Ray Fluorescence). The geocomputational method, Inverse Distance Weighting (IDW), is subsequently applied to determine the distribution of laterite nickel. Observations indicate that the bedrock in the study area consists of ultramafic rock types, including Lherzolite, Olivine Websterite, and Serpentinite. Some of these rocks have undergone serpentinization, while others have not. The serpentinization levels in the study area are classified into three categories: weak serpentinization (≤15%), moderate serpentinization (35%-50%), and strong serpentinization (55%-75%). Nickel grades in strongly serpentinized rocks are 0.22%, in moderately serpentinized rocks 0.50%, in weakly serpentinized rocks 0.32%, and in rocks that have not undergone serpentinization 0.30%.
Socialization of Limestone Utilization to Reduce Iron Levels in Clean Water Irvan, Ulva Ria; Farida, Meutia; Thamrin, Meinarni; Maulana, Adi; Alimuddin, Ilham; Umar, Hamid; Maulana, Baso Rezki; Sahabuddin, Sahabuddin; Tonggiroh, Adi; Ma'waleda, Musri; Yanny, Yanny; A. Mallarangeng, Nurjinaan Fakri
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 2 (2024): Kolaborasi yang Kuat untuk Kekuatan Kemasyarakatan
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i2.543

Abstract

The problem of clean water with high iron content significantly impacts the quality of life of people in Indonesia, including in Mangasa Village, Tamalate District, Makassar. Residents face reddish wells, tap water, and a metallic odor caused by geological factors or old and rusty pipes, which pollute water sources and endanger health. As a solution, Community Service activities by the Geological Engineering Department of Hasanuddin University socialize the use of limestone to reduce iron levels in water. This socialization results from a collaboration between the Community Service team and the capstone design team of geological engineering students at Hasanuddin University in designing clean water filters. The activity began with delivering educational materials regarding water quality problems and the benefits of limestone, accompanied by easy-to-understand visualizations. After a pre-test was conducted to measure initial understanding, the community service team presented and simulated limestone utilization, followed by an interactive question and answer session. Then, a post-test was conducted to evaluate the increase in participants' understanding, which was analyzed to measure the effectiveness of the socialization. The evaluation results showed a significant increase in participants' knowledge of clean water quality, the impact of iron content, and the use of limestone as a filter, which was 72%. This increase reflects the high enthusiasm and motivation of the community in adopting clean water treatment methods.
Peran Serta Informasi Peta Geologi Lembar Pangkajene dalam Pengembangan Wilayah Kabupaten Pangkajene dan Kepulauan Pachri, Hendra; Alimuddin, Ilham; Thamrin, Meinarni; Azikin, Busthan; ., Sultan; Sirajuddin, Haerany; ., Bahrul; Umar, Imran; Irfan, Ulva Ria; Farida, Meutia; Langkoke, Rohaya
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 8 No 1 (2025): Community Empowerment through Higher Education Community Service Programs
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v8i1.590

Abstract

Peta geologi merupakan instrumen penting dalam perencanaan tata ruang dan pengelolaan sumber daya alam. Kegiatan ini bertujuan untuk mensosialisasikan Pemanfaatan Peta Geologi Lembar Pangkajene skala 1:50.000 kepada masyarakat dan pemangku kepentingan di Kabupaten Pangkajene dan Kepulauan (Pangkep), Sulawesi Selatan. Kegiatan ini merupakan hasil kolaborasi antara Departemen Teknik Geologi, Fakultas Teknik, Universitas Hasanuddin dan Pemerintah Kabupaten Pangkep. Metode kegiatan diawali dengan observasi awal, penyiapan materi, serta pelaksanaan sosialisasi yang dilanjutkan dengan pengukuran tingkat pemahaman melalui pre test dan post test. Sosialisasi dilaksanakan pada tanggal 22 Oktober 2024 di Kantor Bupati Pangkep, dengan melibatkan 30 peserta dari aparat pemerintah daerah dan masyarakat desa Libureng. Hasil pre test menunjukkan bahwa mayoritas peserta berada pada kategori “Kurang Paham” (42%) dan “Tidak Paham” (15%) mengenai informasi geologi. Setelah sosialisasi, hasil post test menunjukkan peningkatan signifikan: kategori “Sangat Paham” naik menjadi 67%, sementara “Tidak Paham” turun menjadi 0%. Kegiatan ini berhasil meningkatkan pemahaman peserta terhadap potensi geologi dan pentingnya pemanfaatan Peta Geologi dalam perencanaan wilayah yang berkelanjutan. Temuan ini menunjukkan bahwa pendekatan edukatif dan partisipatif efektif untuk meningkatkan kesadaran masyarakat terhadap pengelolaan sumber daya geologi secara tepat guna dan berkelanjutan.