Analisis Radionuklida pada Fly Ash dan Bottom Ash PLTU Teluk Sirih Menggunakan Spektrometer Gamma

Authors

  • Rahmi Dwi Putri Laboratorium Fisika Nuklir, Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas
  • Imam Taufiq Laboratorium Fisika Nuklir, Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas
  • Nurokhim Nurokhim Pusat Teknologi Keselamatan dan Metrologi Radiasi-BATAN

DOI:

https://doi.org/10.25077/jfu.8.4.387-393.2019

Abstract

Analisis radionuklida pada fly ash dan bottom ash dari PLTU Teluk Sirih telah dilakukan menggunakan spektrometer gamma. Penelitian ini bertujuan untuk mengetahui radionuklida yang terdapat pada fly ash dan bottom ash PLTU Teluk Sirih, kemudian membandingkan konsentrasi aktivitas radionuklida yang didapatkan dengan PP RI no.101/2014 mengenai pengelolaan limbah B3. Sampel fly ash dan bottom ash dari PLTU Teluk Sirih dipreparasi sesuai dengan prosedur standar yang ditetapkan oleh BATAN, lalu dicacah menggunakan spektrometer gamma yang dilengkapi detektor HPGe selama 17 jam. Radionuklida yang didapatkan dari hasil pencacahan adalah 210Pb, 230Th, 234Th, 226Ra, 232Th, 228 Th, 238U, 40K. Konsentrasi aktivitas radionuklida pada sampel fly ash berkisar antara 21,20±5,378 Bq/kg sampai dengan 320,40±31,279 Bq/kg, sedangkan konsentrasi aktivitas radionuklida pada sampel bottom ash berkisar antara ≤ 2,529 Bq/kg sampai dengan 163,728±15,88 Bq/kg. Berdasarkan PP RI No.101/2014 pemanfaatan fly ash dan bottom ash dari PLTU Teluk Sirih masih diperbolehkan karena konsentrasi aktivitas pada fly ash dan bottom ash PLTU Teluk Sirih berada dibawah ambang batas yaitu untuk deret uranium dan thorium adalah 1000 Bq/kg dan untuk kalium sebesar 10.000 Bq/kg.

Kata kunci : aktivitas, bottom ash, fly ash, limbah B3, radionuklida, spektrometer gamma

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Published

2019-11-26

How to Cite

Putri, R. D., Taufiq, I., & Nurokhim, N. (2019). Analisis Radionuklida pada Fly Ash dan Bottom Ash PLTU Teluk Sirih Menggunakan Spektrometer Gamma. Jurnal Fisika Unand, 8(4), 387–393. https://doi.org/10.25077/jfu.8.4.387-393.2019

Issue

Vol. 8 No. 4 (2019)

Section

Articles

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Copyright (c) 2019 Rahmi Dwi Putri, Imam Taufiq, Nurokhim Nurokhim

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