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All Journal Jurnal Neutrino : jurnal fisika dan aplikasinya JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX Jurnal Pengabdian Perikanan Indonesia COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat International Journal of Hydrological and Environmental for Sustainability Physikos: Journal of Physics and Physics Education Jurnal Aplikasi Fisika
Nur, Adrian Rahmat
Universitas Halu Oleo
Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences

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Ekstraksi Nickel Laterite Ore dengan Metode Leaching Berbantu Microwave Muhammad Al Rasyid; Al Jalali Muhammad; Yumnawati; Ismail Saleh; La Ode Muh. Iksan Juarzan; Adrian Rahmat Nur
Jurnal Aplikasi Fisika Vol. 21 No. 1 (2025): Februari 2025
Publisher : Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62749/jaf.v21i1.p1-4

Abstract

Umumnya, microwave telah banyak digunakan dalam proses pengolahan makanan. Namun, seiring dengan perkembangan ilmu pengetahuan dan teknologi, saat ini microwave telah dieksplorasi untuk pemanfaatannya dalam pengolahan material. Penelitian ini memanfaatkan teknik pemanasan gelombang mikro untuk membantu proses pelindian nikel pada tekanan atmosfer. Bijih dengan penambahan asam sulfat dipanaskan dengan microwave. Daya microwave divariasikan untuk mengetahui pengaruh daya microwave terhadap laju pelindian nikel. Berdasarkan analisis EDX, terjadi peningkatan nikel yang tercuci sesuai dengan peningkatan daya microwave. Sebanyak 90,46% nikel berhasil diekstraksi pada daya microwave 800 watt selama 6 menit.
Identification of the Distribution and Volume of Iron Sand in the Gura Beach Area Using the Wenner-Schlumberger Configuration Geoelectric Method Yumarti G B Tjinta; Bayu Achil Sadjab; Kurnia Kurnia; Harsen Berg Janis; Masitah Yusniar; Oktosea Buka; Steven Iwamoni; Adrian Rahmat Nur
International Journal of Hydrological and Environmental for Sustainability Vol. 2 No. 2 (2023): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v2i2.253

Abstract

The Naniura NRD300 HF tool has been used in research using the Wenner-Schlumberger configuration geoelectric method to determine the direction of iron sand distribution, the volume of iron sand, and the concentration of iron sand in the Gura beach area. The collected measurement results are then processed by the RES2DINV software into a 2 Dimension (2D) cross-section that shows the distribution values of the subsurface layer as shown by a color image. Once saved in (.xyz) format, the RES2DINV software results are processed in RockWork software to create pseudo-3D cross sections. The RES2DINV software's results show that line 1's resistivity value ranges from 39.6 to 1000 Ωm, whereas line 2's resistivity value ranges from 0.16 to 1.7 Ωm. These findings suggest that line 2 has a lower resistivity value than line 1 does. The volume of iron sand processed by RockWork software is 221,000 cubic meters for linek 2 and 273,000 cubic meters for line 1. The distribution of iron sand deposits in the study region is south to north, based on the volume of iron sand in line 1, which is bigger. A method used to determine the composition of the minerals present in a sample is called X-ray fluorescence (XRF). The results of analyzing the Fe content in line 2 are 55.01%, which is higher when compared to the Fe content in line 1, which is 40.5%.
Geoelectric Interpretation of Wenner-Schlumberger Configuration Using Res2Dinv Software: A Case Study of 2D Mapping of Seawater Intrusion in a Landslide Potential Area, North Halmahera District, Indonesia Andrisal Tambanaung; Bayu Achil Sadjab; Kurnia Kurnia; Harsen Berg Janis; Masitah Yusniar; Oktosea Buka; Steven Iwamoni; Adrian Rahmat Nur
International Journal of Hydrological and Environmental for Sustainability Vol. 3 No. 1 (2024): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v3i1.378

Abstract

Research has been carried out on landslides in Saluta-Pelita Village, North Galela District, North Halmahera Regency, Indonesia using the Wenner-Schlumberger method using a Geoelectric Resistivity tool - Naunira NRD 300 HF. This research aims to determine the structure of the subsurface layer in the potential landslide area of Saluta-Pelita Village. In addition, this research aims to determine the slip plane (boundary layer) of sea water intrusion in the research area. The measurement results are processed using Res2Dinv software for 2D resistivity which describes the subsurface layer shown in color. The measurement results on track 1 show a clay layer with a resistivity value of 3.1 ohm -27 ohm at a distance of 1-80 meters (blue and green), a silt layer of 44.3 ohm - 184.1 ohm at a depth of 1-20 meters (Yellow) which is a slip plane (boundary layer) of sea water intrusion with a path length of 40 meters, conglomerate 210 ohm (red) at a depth of more than 7.50 meters. In track 2 there is a layer of clay with a resistivity of 1.4 ohm - 39 ohm at a depth of 1-24 meters (blue and green), silt 43.1 m-185.6 m (yellow) is the slip plane (layer boundary) of sea water intrusion with a 95 meter long track, a conglomerate layer with a resistivity of 203.4 ohm - 407.8 ohm (red) at a depth of more than 12.8 meters. On track 3 there is a layer of clay with a resistivity of 0.186 ohm - 31.4 ohm (blue and green) at a depth of up to 24 meters with a length of more than 120 meters, silt with a resistivity value of 44.4 ohm - 189 ohm (yellow) which is a slip plane (boundary layer) sea water intrusion with a path of 65 meters at a depth of 2.50 meters-24.9 meters.
Assessing Anthropogenic Pressure through Biomonitoring: Aquatic Biota as Indicators of Water Quality in an Urban Lake Nurvita Cundaningsih; Haerul Anwar; Faisal M Jasin; Hartono Hartono; Adrian Rahmat Nur; Rinaldi Idroes
International Journal of Hydrological and Environmental for Sustainability Vol. 4 No. 3 (2025): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v4i3.846

Abstract

Urban areas in Jakarta face significant pressure on clean water resources due to increasing population and anthropogenic activities. This research aims to conduct biomonitoring of the Situ Bambon Ciracas lake ecosystem, East Jakarta, by analyzing water quality and the community structure of macrozoobenthos, phytoplankton, and zooplankton as bioindicators. A descriptive quantitative method was used, involving measurements of water physical-chemical parameters (TDS, TSS, pH, BOD, COD, Total-P) and identification of aquatic biota. The results indicate that the water quality of Situ Bambon Ciracas lake is lightly to moderately polluted, dominated by organic compounds. BOD (5−34.67 mg/L) and COD (17.05−193.56 mg/L) values consistently exceeded the Class 3 water quality standards, and TDS showed an increasing trend. The biota community structure reflects these conditions: macrozoobenthos showed moderate diversity (H′=1.2, E=0.6). Phytoplankton (H′=3.12−3.2, E=0.74−0.76) and zooplankton (H′=2.11−2.16, E=0.76−1.95) showed high diversity and evenness, but were dominated by bioindicator species tolerant to organic pollution (e.g., Oscillatoria sp., Nitzschia sp., Colpoda sp., Closterium sp.). The positive correlation between the abundance of these bioindicator species and high BOD and COD confirms organic waste as the main driver of ecological change. In conclusion, the Situ Bambon Ciracas lake ecosystem is under significant anthropogenic pressure. The dominance of pollution-tolerant species, despite existing diversity, highlights the urgency of comprehensive management and restoration efforts to maintain the sustainability of this urban lake.
Co-Authors Abdin Al Jalali Muhammad Andrisal Tambanaung Ashari Midana Bayu A. Sadjab Bayu Achil Sadjab Buka, Oktosea Edi Suharyadi Faisal M Jasin Febrian Dedi Sastrawan Haerul Anwar Hanny F. Sangian Harsen Berg Janis Harsen Berg Janis Hartono Hartono I Nyoman Sudiana I Putu Tedy Indrayana IDA USMAN Ismail Saleh ISMAIL SALEH Janis, Harsen Berg Juniar, Firza Khafidh Nur Aziz Kurnia Kurnia Kurnia Kurnia KURNIA KURNIA, KURNIA La Agusu La Ode Muh. Iksan Juarzan La Ode Rusman Liliana Rossa Lina Lestari Lina Lestari, Lina M. Zamrun F. Masitah Yusniar Meidi Arisalwadi Meidi Arisalwadi Muhammad Al Rasyid Nurvita Cundaningsih Ode Sanando, La Oktosea Buka Papuling, Eminia Sofya Raharjo, Sapto Raharjo Rahmania Rahmania Rahmania Rahmania Rinaldi Idroes Sapto Raharjo Sastrawan, Febrian Dedi Sismanto Sismanto Steven Iwamoni Yumarti G B Tjinta Yumnawati Yumnawati Yumnawati, Yumnawati Yusniar, Masitah