MAGNETIC PROPERTIES OF SUSPENDED OF POLLUTED HEAVY METAL SEDIMENTS FROM SEMARANG RIVERS
<p>Sifat magnetik, dalam bentuk kerentanan magnetik, tergantung pada frekuensi kerentanan (CFD) dan magnetisasi remanenisotermal (IRM) diukur pada nilai sampel yang terbuat dari sedimen tersuspensi dari Semarang sungai terdekat, Jawa Tengah.Semarang adalah salah satu kota besar di Indonesia, d...
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Universitas Negeri Semarang
2012-01-01
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| Series: | Jurnal Pendidikan Fisika Indonesia |
| Online Access: | https://journal.unnes.ac.id/nju/index.php/JPFI/article/view/1086 |
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| author | Upik Nurbaiti |
| author_facet | Upik Nurbaiti |
| author_sort | Upik Nurbaiti |
| collection | DOAJ |
| description | <p>Sifat magnetik, dalam bentuk kerentanan magnetik, tergantung pada frekuensi kerentanan (CFD) dan magnetisasi remanenisotermal (IRM) diukur pada nilai sampel yang terbuat dari sedimen tersuspensi dari Semarang sungai terdekat, Jawa Tengah.Semarang adalah salah satu kota besar di Indonesia, dimana sistem sungai yang sangat mungkin terkontaminasi oleh kegiatanantropogenik. Tujuan dari penelitian ini adalah untuk mengidentifikasi adanya logam berat dalam sedimen yang akan menentukankesesuaian sedimen untuk studi lanjut magnetik lingkungan. Hasil menunjukkan bahwa kerentanan magnet bervariasi 58-358510-8 m3/kg, sementara kerentanan tergantung pada frekuensi kurang dari 3% menunjukkan dominasi mineral feromagnetik. IRManalisis menunjukkan bahwa semua sampel jenuh dalam medan magnet kurang dari 200 mT menunjukkan mineral yang dominanadalah magnetit (Fe3O4). Membandingkan pengukuran magnetik dan analisis kimia, kami menemukan korelasi yang baik antarasuseptibilitas magnetik dan konsentrasi Fe, Mn, Co, dan Ti.</p><p> </p><p>Magnetic properties, in the form of magnetic susceptibility ©, frequency-dependent susceptibility (cfd), and isothermal remanentmagnetization (IRM) were measured on scores of samples made of suspended sediments from rivers nearby Semarang, CentralJava. Semarang is one the major cities in Indonesia, where the river systems are very likely to be contaminated by anthropogenicactivities. The objective of this study is to identify the presence of heavy metals in the sediments that will determine the suitability ofthese sediments for further environmental magnetic study. The results show that magnetic susceptibility varies from 58 to 3585 10-8 m3/kg, while the frequency-dependent susceptibility is less than 3% indicating the predominance of ferromagnetic minerals. IRManalysis shows that all samples saturated in magnetic field of less than 200 mT suggesting the predominant mineral is magnetite(Fe3O4). Comparing magnetic measurements and chemical analyses, we found good correlation between magnetic susceptibilityand concentration of Fe, Mn, Co, and Ti.</p><p><strong>Keywords</strong>: magnetic susceptibility; heavy metals; river sediments; Semarang</p> |
| format | Article |
| id | doaj-art-d04e7335b32b427ab0e18e1e85d780c1 |
| institution | OA Journals |
| issn | 1693-1246 2355-3812 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Universitas Negeri Semarang |
| record_format | Article |
| series | Jurnal Pendidikan Fisika Indonesia |
| spelling | doaj-art-d04e7335b32b427ab0e18e1e85d780c12025-08-20T02:04:13ZengUniversitas Negeri SemarangJurnal Pendidikan Fisika Indonesia1693-12462355-38122012-01-017210.15294/jpfi.v7i2.1086957MAGNETIC PROPERTIES OF SUSPENDED OF POLLUTED HEAVY METAL SEDIMENTS FROM SEMARANG RIVERSUpik Nurbaiti<p>Sifat magnetik, dalam bentuk kerentanan magnetik, tergantung pada frekuensi kerentanan (CFD) dan magnetisasi remanenisotermal (IRM) diukur pada nilai sampel yang terbuat dari sedimen tersuspensi dari Semarang sungai terdekat, Jawa Tengah.Semarang adalah salah satu kota besar di Indonesia, dimana sistem sungai yang sangat mungkin terkontaminasi oleh kegiatanantropogenik. Tujuan dari penelitian ini adalah untuk mengidentifikasi adanya logam berat dalam sedimen yang akan menentukankesesuaian sedimen untuk studi lanjut magnetik lingkungan. Hasil menunjukkan bahwa kerentanan magnet bervariasi 58-358510-8 m3/kg, sementara kerentanan tergantung pada frekuensi kurang dari 3% menunjukkan dominasi mineral feromagnetik. IRManalisis menunjukkan bahwa semua sampel jenuh dalam medan magnet kurang dari 200 mT menunjukkan mineral yang dominanadalah magnetit (Fe3O4). Membandingkan pengukuran magnetik dan analisis kimia, kami menemukan korelasi yang baik antarasuseptibilitas magnetik dan konsentrasi Fe, Mn, Co, dan Ti.</p><p> </p><p>Magnetic properties, in the form of magnetic susceptibility ©, frequency-dependent susceptibility (cfd), and isothermal remanentmagnetization (IRM) were measured on scores of samples made of suspended sediments from rivers nearby Semarang, CentralJava. Semarang is one the major cities in Indonesia, where the river systems are very likely to be contaminated by anthropogenicactivities. The objective of this study is to identify the presence of heavy metals in the sediments that will determine the suitability ofthese sediments for further environmental magnetic study. The results show that magnetic susceptibility varies from 58 to 3585 10-8 m3/kg, while the frequency-dependent susceptibility is less than 3% indicating the predominance of ferromagnetic minerals. IRManalysis shows that all samples saturated in magnetic field of less than 200 mT suggesting the predominant mineral is magnetite(Fe3O4). Comparing magnetic measurements and chemical analyses, we found good correlation between magnetic susceptibilityand concentration of Fe, Mn, Co, and Ti.</p><p><strong>Keywords</strong>: magnetic susceptibility; heavy metals; river sediments; Semarang</p>https://journal.unnes.ac.id/nju/index.php/JPFI/article/view/1086 |
| spellingShingle | Upik Nurbaiti MAGNETIC PROPERTIES OF SUSPENDED OF POLLUTED HEAVY METAL SEDIMENTS FROM SEMARANG RIVERS Jurnal Pendidikan Fisika Indonesia |
| title | MAGNETIC PROPERTIES OF SUSPENDED OF POLLUTED HEAVY METAL SEDIMENTS FROM SEMARANG RIVERS |
| title_full | MAGNETIC PROPERTIES OF SUSPENDED OF POLLUTED HEAVY METAL SEDIMENTS FROM SEMARANG RIVERS |
| title_fullStr | MAGNETIC PROPERTIES OF SUSPENDED OF POLLUTED HEAVY METAL SEDIMENTS FROM SEMARANG RIVERS |
| title_full_unstemmed | MAGNETIC PROPERTIES OF SUSPENDED OF POLLUTED HEAVY METAL SEDIMENTS FROM SEMARANG RIVERS |
| title_short | MAGNETIC PROPERTIES OF SUSPENDED OF POLLUTED HEAVY METAL SEDIMENTS FROM SEMARANG RIVERS |
| title_sort | magnetic properties of suspended of polluted heavy metal sediments from semarang rivers |
| url | https://journal.unnes.ac.id/nju/index.php/JPFI/article/view/1086 |
| work_keys_str_mv | AT upiknurbaiti magneticpropertiesofsuspendedofpollutedheavymetalsedimentsfromsemarangrivers |