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All Journal Jurnal Penelitian Geosains Jurnal Ilmu Alam dan Lingkungan Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat International Journal Software Engineering and Computer Science (IJSECS) Journal of Geology and Exploration
Adi Tonggiroh
Departemen Teknik Geologi, Fakultas Teknik Universitas Hasanuddin
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Engineering Environmental Science Immunology & microbiology Public Health Veterinary

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PENGARUH KOMPOSISI ASH BATUBARA TERHADAP KUALITAS KLINKER PORTLAND CEMENT PADA PT. SEMEN TONASA UNIT III Dahliar, Nurlianti; Widodo, Sri; Tonggiroh, Adi
Jurnal Penelitian Geosains Vol 10, No 2 (2014)
Publisher : Jurnal Penelitian Geosains

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

Abstract

Portland cement clinker is a hydraulic material consists of C3S, C2S, C3A and C4AF. For producing clinker, raw meal have been burn in kiln at temperature 1450oC by using the heat combustion from coal. Clinker burning process is the most important process for the cement industry. In the portland cement industry, coal was not only used as a fuel, but it can also affected the composition of clinker. The coal ash will be mixed with raw meal during clinkerization process. Therefore, when the quality of the coal is not in accordance with the raw meal, it will cause crude clinker. The main purpose of study is to determine the influence of coal ash toward clinker quality. It should be known because portland cement clinker quality of PT. Semen Tonasa have to be on standard according to ASTM C-150-1999 and SNI No. 15-6514-2001. The results of paired T-test analysis showed that the composition of the coal ash which affected the quality of clinker after clinkerization process were LSF, SM, C3S, C2S, and C4AF. Based on the result of simple regression analysis, the amount of coal ash composition toward clinker portland cement quality was minor. LSF had the highest influence up to 0.885%, AM range between 0.1-0.3%, C2S range between 0.01-0.07%, C3S range between 0.01-0.02%, and C4AF was 0.019%.Keywords: clinker, coal ash, quality, C3S, C4AF, portland cement
Hubungan Vegetasi Mangrove Terhadap Kelimpahan Makrozoobenthos di Pantai Pangkajene Ambeng Ambeng; Hazairin Zubair; Putu Oka Ngakan; Adi Tonggiroh
Jurnal Ilmu Alam dan Lingkungan Vol. 11 No. 1 (2020): Jurnal Ilmu Alam dan Lingkungan
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (985.29 KB) | DOI: 10.20956/jal.v11i1.9566

Abstract

Mangrove ecosystem is a habitat of various fauna, especially macrozoobenthos. The changing vegetation of the mangrove ecosystem will influence the abundance of macrozoobenthos. This study was conducted in April-August 2019 and aims to analyze the dominance and density relations of mangrove vegetation against the abundance of Macrozoobenthos on the Pagkajene coast. The research location is conducted on three stations, each station is divided into two sampling areas, and on each sampling area is placed six sampling points. Data collection of mangrove vegetation is used with a multilevel plot method and Macrozoobenthos using a plot 50x50 cm. correlation the dominance and density of mangrove vegetation towards the abundance of macrozoobenthos used linear regression analysis. The results of the study gained that the mangrove vegetation dominancy positively affects to the abundance of macrozoobenthos but insignificant. Meanwhile, the density of mangrove vegetation significantly negatively affects to the abundance of macrozoobenthos.
Evaluasi Kesuburan Tanah Pada Lahan Pasca Tambang Nikel Laterit Sulawesi Tenggara Muhardi Mustafa; Adi Maulana; Ulva Ria Irfan; Adi Tonggiroh
Jurnal Ilmu Alam dan Lingkungan Vol. 13 No. 1 (2022): Jurnal Ilmu Alam dan Lingkungan
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jal.v13i1.20457

Abstract

Pasca penambangan terbuka nikel laterit menyisakan lahan topografi rendah yang kemudian direklamasi dengan cara mengembalikan tanah bagian atas (top soil) sebagai timbunan. Penimbunan ini tidak selamanya berjalan dengan baik bahkan menghasilkan lahan tidak produktif. Dikarenakan pada lahan pasca tambang peran tanah timbunan memerlukan adaptasi fisika kimia terhadap tanah sisa penambangan. Pada lokasi penelitian terdapat sebagian lahan bertekstur lempung berdebu dan vegetasi tak dapat tumbuh dengan baik. Penelitian ini membahas salah satu lahan reklamasi yang masuk sebagai lahan tidak produktif yang bertujuan memberikan informasi karakteristik tanahnya. Hasil penelitian menunjukkan tanah lahan pasca tambang minim akan unsur hara dengan status nilai pH rendah, C-Organik rendah, Nitrogen total rendah, fosfor tersedia rendah, kapasitas tukar ion serta kejenuhan basa mengindikasikan status kesuburan tanah sangat rendah. Hal ini didukung oleh analisis tekstur tanah lempung berdebu lebih dominan daripada fraksi tanah lempung berliat yang berkorelasi dengan porositas dan permiabilitas jelek.
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.
Geology and Geochemistry of Batuan Gunungapi Walimbong Formation Balepe Area Tana Toraja Regency South Sulawesi Province Idham, Virly Fakhriyah Uzdah; Azikin, Busthan; Tonggiroh, Adi
Journal of Geology and Exploration Vol. 4 No. 1 (2025): Journal of Geology and Exploration, June 2025
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v4i1.195

Abstract

The study area is located in the Regional Geological Sheet of Majene and Western Palopo, precisely administratively, the research location is located in the Balepe Area, Malimbong Balepe District, Tana Toraja Regency, South Sulawesi Province and astronomically located at the coordinates 119°39'20' 'E - 119°43'20'' E (East Longitude) and 03°03'25'' S - 03°06'25'' S (South Latitude). The purpose of the study was to find out the type and affinity of magma, the naming of rocks based on chemical composition, and the evolution of magma in the study area. The methods used are field observations and data collection, petrographic analysis, and geochemistry using XRF (X-Ray Fluorescence spectrometry). The data was processed using GCDKIT Software. Based on the results of geochemical analysis on the four rock samples, the rock types were based on Total Alkaline Silica (TAS), namely trachy basalt, basalt, rhyolite, and dacite with magma affinity, namely Shoshonite Series and High-K calc-alkaline Series. Petrographic analysis in the form of naming rocks using the Pettijohn (1975) classification, namely lithic tuff, crystal vitric tuff, vitric crystal tuff, and vitric crystal tuff. The evolution of magma in the study area in the diagram of the variation of the content of major elements against SiO2 compounds shows that some of the main elements are systematically differentiated and some are not systematic.
Co-Authors A. Mallarangeng, Nurjinaan Fakri Adi Maulana Adi Maulana, Adi Al Amir, Umar Ambeng Ambeng Busthan Azikin Hamid Umar Hazairin Zubair Idham, Virly Fakhriyah Uzdah Ilham Alimuddin, Ilham Ma'waleda, Musri maulana, Baso rezki Meinarni Thamrin Meutia Farida Muhardi Mustafa Nurlianti Dahliar, Nurlianti Putu Oka Ngakan Rohaya Langkoke SAHABUDDIN SAHABUDDIN Sri Widodo Ulva Ria Irvan Yanny, Yanny