https://ejournal.unib.ac.id/kumparan_fisika <p>Jurnal Kumparan Fisika is an open access and double blind peer-reviewed journal that contains articles on the results of research on teaching physics, learning physics, physics theory, and applied physics. Jurnal Kumparan Fisika is managed by the Physics Education Study Program of the Teaching and Education Faculty of Universitas Bengkulu. Jurnal Kumparan Fisika is published in April, August and December a year by Unib Press. Jurnal Kumparan Fisika received e-ISSN <a href="https://issn.lipi.go.id/terbit/detail/1515598548">2655-1403</a> in 2018 and p-ISSN <a href="https://issn.lipi.go.id/terbit/detail/1560827953">2685-1806</a> in 2019. Jurnal Kumparan Fisika has been indexed in DOAJ since 2019 and accredited as SINTA 4 on April 2020 and as <strong>SINTA 3</strong> on April 2022.</p> en-US <p>Authors who publish in this journal agree with the following terms:</p><ol type="a"><li>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a href="https://creativecommons.org/licenses/by/3.0/" target="_new">Creative Commons Attribution License</a> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li><li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li><li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See <a href="http://opcit.eprints.org/oacitation-biblio.html" target="_new">The Effect of Open Access</a>).</li><li>This work is licensed under a <a href="http://creativecommons.org/licenses/by-sa/4.0/" rel="license">Creative Commons Attribution-ShareAlike 4.0 International License</a>.</li></ol><p>• Creative Commons Attribution-ShareAlike (CC BY-SA)</p><p><a href="http://creativecommons.org/licenses/by-sa/4.0/" rel="license"><img src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" alt="Creative Commons License" /></a></p><p><span>Jurnal Kumparan Fisika is licensed under a <a href="http://creativecommons.org/licenses/by-sa/4.0/" rel="license">Creative Commons Attribution-ShareAlike 4.0 International License</a>.</span></p> aprina.defianti@unib.ac.id (Aprina Defianti) azharlubis@unib.ac.id (Azhar Aziz Lubis) Wed, 30 Apr 2025 00:00:00 +0000 OJS 3.3.0.11 http://blogs.law.harvard.edu/tech/rss 60 https://ejournal.unib.ac.id/kumparan_fisika/article/view/35215 <p><strong>A</strong><strong>B</strong><strong>S</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>K</strong></p> <p> </p> <p>Limbah cair kelapa sawit telah diterapkan di lahan aplikasi yang berada di Desa Tinting Boyok, Kabupaten Sekadau, Provinsi Kalimantan Barat. Tujuan penelitian ini adalah untuk mengidentifikasi limbah cair kelapa sawit yang merembes ke dalam tanah. Rembesan limbah ini dikhawatirkan menurunkan kualitas air tanah. Metode yang digunakan untuk mencapai tujuan tersebut adalah metode geolistrik resistivitas dengan konfigurasi Wenner-Schlumberger. Penelitian ini menggunakan dua lintasan geolistrik dengan panjang lintasan sebesar 195 m. Identifikasi limbah cair kelapa sawit dilakukan berdasarkan nilai resistivitas yang diperoleh dari proses pemodelan menggunakan metode inversi Gauss-Newton. Dari proses inversi tersebut, penampang resistivitas yang diperoleh dapat menyatakan nilai resistivitas sebenarnya. Nilai resistivitas yang diperoleh dari hasil inversi adalah 4,53 Ωm s.d. 950 Ωm. Dari nilai resistivitas tersebut, lapisan tanah yang terdapat pada daerah penelitian berupa lapisan pasir, pasir lempungan dan lapukan granodiorit. Lapisan pasir diduga sebagai tempat akumulasi limbah cair kelapa sawit di dalam tanah. Limbah cair kelapa sawit diduga memiliki nilai resistivitas 4,53 Ωm s.d. 9,7 Ωm. Limbah cair kelapa sawit memiliki nilai resistivitas yang lebih kecil karena mengandung <em>Chemical Oxigen Demand </em>(COD) dan <em>Biochemical Oxygen Demand</em> (BOD) tinggi serta logam hingga logam berat. Rembesan limbah ini diduga terdeteksi dari kedalaman 2 m s.d. 6,5 m pada lintasan 1 dan 2 m s.d. 24 m. Formasi geologi dan topografi mempengaruhi rembesan limbah pada lintasan 1 dan lintasan 2.</p> <p> </p> <p>Kata kunci— metode geolistrik, limbah cair kelapa sawit, resistivitas</p> <p> </p> <p><strong>ABS</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>C</strong><strong>T</strong></p> <p> </p> <p>Palm oil mill effluent (POME) has been applied to the application site located in Tinting Boyok Village, Sekadau Regency, West Kalimantan Province. The objective of this research is to identify the seepage of palm oil mill effluent into the soil. This seepage is concerning as it may degrade the quality of groundwater. The method used to achieve this objective is the resistivity geoelectric method with the Wenner-Schlumberger configuration. This study utilized two geoelectric lines, each with a length of 195 meters. The identification of palm oil mill effluent was based on resistivity values obtained from the modeling process using the Gauss-Newton inversion method. From this inversion process, the resistivity cross-section obtained can represent the actual resistivity values. The resistivity values obtained from the inversion results range from 4.53 Ωm to 950 Ωm. Based on these resistivity values, the soil layers in the study area consist of sand, clayey sand, and weathered granodiorite layers. The sand layer is suspected to be the accumulation zone for palm oil mill effluent within the soil. The palm oil mill effluent is estimated to have resistivity values ranging from 4.53 Ωm to 9.7 Ωm. The effluent exhibits lower resistivity values due to its high Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) content, as well as the presence of metals and heavy metals. The seepage of this effluent is suspected to be detected at depths ranging from 2 meters to 6.5 meters on line 1, and from 2 meters to 24 meters on line 2. Geological formations and topography influence the seepage of the effluent on both line 1 and line 2..</p> <p> </p> <p>Keywords— geoelectrical method, palm oil mill efflunet, resistivity</p> Zulfian, Yuris Susanto Copyright (c) 2025 Zulfian, Yuris Susanto https://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unib.ac.id/kumparan_fisika/article/view/35215 Wed, 30 Apr 2025 00:00:00 +0000