Analisis Kandungan Radionuklida Alam Pada Fly Ash, Bottom Ash, dan Tanah dari PLTU di Industri Gula dengan Menggunakan Spektrometer Gamma
DOI:
https://doi.org/10.25077/jfu.12.3.423-429.2023Keywords:
Aktivitas spesifik, Bottom ash, Fly ash, PLTU, Spektrometer gamma, TanahAbstract
Penelitian ini bertujuan untuk menentukan aktivitas spesifik 226Ra, 232Th dan 40K yang terdapat pada sampel fly ash, bottom ash, dan tanah di sekitar PLTU pada industri gula. Masing – masing tiga sampel fly ash dan bottom ash diambil dari silo, dan Sembilan sampel tanah diambil pada radius (0-4) km dari PLTU. Pencacahan sampel dilakukan menggunakan spektrometer gamma dengan detektor HPGe. Sampel dicacah selama 17 jam, dan diolah menggunakan software Maestro. Hasil penelitian menunjukkan bahwa aktivitas spesifik 226Ra dan 40K pada fly ash dan bottom ash berada di bawah nilai rata-rata dunia, kecuali 232Th pada fly ash dengan nilai rata-rata 88,45 ± 2,48 Bq/kg di atas nilai yang dilaporkan UNSCEAR. Pengukuran aktivitas spesifik 226Ra, 232Th dan 40K pada tanah di sekitar industri gula menunjukkan konsentrasi tertinggi pada tanah yang berada semakin dekat dengan cerobong PLTU. Kesimpulan dari penelitian ini adalah aktifitas spesifik 226Ra, 232Th dan 40K pada sampel fly ash, bottom ash, dan tanah di sekitar industri gula tidak menunjukkan peningkatan yang signifikan.References
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