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All Journal Bulletin of Scientific Contribution : Geology Urania Jurnal Ilmiah Daur Bahan Bakar Nuklir Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
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PTLR-BATAN
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology

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POTENSI LINGKUNGAN KAWASAN NUKLIR SERPONG DAN EVALUASI KESELAMATAN UNTUK TAPAK FASILITAS BOREHOLE DISPOSAL LIMBAH SUMBER RADIASI BEKAS Setiawan, Risdiyana; Megasari, Kartini; Sucipta, Sucipta; Setiawan, Andry
Urania : Jurnal Ilmiah Daur Bahan Bakar Nuklir Vol 29, No 1 (2023): APRIL, 2023
Publisher : website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/urania.2023.29.1.6717

Abstract

Penyimpanan lestari terhadap sumber radiasi bekas (disused sealed radioactive sources = DSRS) masih menghadapi beberapa rintangan, antara lain karena DSRS umumnya berumur paro panjang, tingkat radiasi gamma-photon tinggi, sulitnya opsi untuk dikembalikan ke negara pembuat, dan aktivitas melampaui batas untuk shallow land disposal. Untuk itu perlu dikembangkan sistem penyimpanan lestari limbah DSRS dengan fasilitas skala kecil yang ekonomis, memenuhi standard keselamatan pekerja, masyarakat dan lingkungan. Jawaban untuk masalah ini adalah dengan konsep penyimpanan lestari dalam lubang bor (borehole disposal = BHD). Penelitian ini fokus pada evaluasi potensi lingkungan Kawasan Nuklir Serpong (KNS) untuk tapak fasilitas BHD dan keselamatannya sesuai dengan standar IAEA yaitu borehole disposal of disused sealed sources (BOSS). Evaluasi lingkungan KNS dilakukan dengan karakterisasi dan evaluasi keselamatan lingkungan geologi dan non geologi untuk tapak BHD sesuai standard IAEA. Secara umum, hasil evaluasi parameter lingkungan terhadap kriteria tapak disposal menunjukkan adanya kesesuaian.  Namun ada beberapa parameter yang perlu diberikan solusi teknologi (engineered barrier) agar fungsi tapak sebagai natural barrier dapat terpenuhi.  Beberapa solusi teknologi tersebut meliputi kemasan limbah (kapsul dan kontainer), buffer dan backfill material, pelapis lubang bor (casing), pemasangan basement plug dan upper/cover plug. Hasil dari pengkajian keselamatan dengan Borehole Disposal Concept  (BDS) scoping tools menunjukkan bahwa konsep fasilitas BHD pada tapak KNS termasuk dalam zona hijau (green zone) yang berarti aman, dengan nilai total dosis maksimal sebesar 7.2e-9 Sv/y di tahun 46.678y. Menggunakan system standar BOSS dengan penambahan engineered barrier maka lokasi tapak di KNS memenuhi kriteria dan berpotensi untuk penempatan fasilitas borehole disposal limbah DSRS.Kata kunci: potensi, lingkungan, tapak, keselamatan, borehole disposal.
POTENSI GEOLOGI REGIONAL KEPULAUAN BANGKA BELITUNG UNTUK TAPAK LANDFILL LIMBAH TENORM Sucipta, Sucipta; Pratama, Hendra Adhi; Iskandar, Dadong
Bulletin of Scientific Contribution Vol 18, No 3 (2020): Bulletin of Scientific Contribution : GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc.v18i3.31168

Abstract

Sebagai  antisipasi kebutuhan masa mendatang dalam penyediaan fasilitas pengelolaan limbah TENORM di Kepulauan Bangka Belitung (Babel), maka salah satunya perlu dipersiapkan fasilitas disposal tipe landfill yang mempertimbangkan aspek keselamatan masyarakat dan lingkungan. Untuk itu sebagai langkah awal perlu dilakukan tinjauan geologi regional Kepulauan Bangka Belitung untuk calon tapak landfill limbah TENORM. Kajian ini dilaksanakan dengan metode deskriptif dengan ruang lingkup studi pustaka, tinjauan terhadap kriteria keselamatan tapak landfill, pengumpulan dan analisis data geologi regional, serta analisis potensinya untuk tapak landfill. Berdasarkan data geologi regional diperoleh beberapa potensi calon tapak dengan batuan pengungkung (hostrock) berupa batuan sedimen (batuan lempungan), hostrock batuan kristalin (granit, granodiorit, adamelit dan lain-lain), dan hostrock batuan metamorf (filit, sekis dan lain-lain). Hostrocks tersebut tersebar di pulau Bangka, pulau Belitung dan pulau-pulau kecil di sekitar pulau Bangka dan pulau Belitung.Kata kunci : geologi regional, tapak, landfill, limbah TENORM
Penentuan Koefisien Hidraulik pada Tapak NSD, Serpong, Berdasarkan Metoda Uji Permeabilitas In-Situ Syaeful, Heri; Sucipta, Sucipta
EKSPLORIUM Vol. 34 No. 1 (2013): MEI 2013
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/eksplorium.2013.34.1.646

Abstract

Inline with the increase of amount of radioactive waste, PTLR-BATAN plans to build the Near Surface Disposal (NSD) facility, especially in the preliminary stages is the Demo Plant of NSD facility. NSD is a low to medium level radioactive waste storage concept. Most important aspect in the site study for planning NSD is hydrogeological aspect especially related to the migration of radionuclides to the environment. In the study of radionuclide migration, a preliminary parameter which is required to know is the hydraulic conductivity in order to deliver the soil and rock hydraulic conductivity values ​​in the site then conducted the in-situ permeability test. Based on the test, obtained soil and rock hydraulic conductivity values​ranging from 10-6 to 10-2 cm/sec. The greatest hydraulic conductivity value located in the gravelly silt soil units which is in the site, constitute as aquifer, with depth ranging from 8-24 m, with hydraulic conductivity value ​​reached 10-2 cm/sec.
Studi Geologi Teknik Tapak Penyimpanan Akhir Limbah Radioaktif (LRA) Demo Plant Tipe NSD Kedalaman Menengah di Puspiptek, Serpong Syaeful, Heri; Sucipta, Sucipta; Sadisun, Imam Achmad
EKSPLORIUM Vol. 35 No. 1 (2014): MEI 2014
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/eksplorium.2014.35.1.1367

Abstract

Final disposal of radioactive waste intended to keep radioactive substances does not released to the environment until the substance activity decreased to the safe level. Storage concept of radioactive waste (RAW) final disposal that will be developed at the area of Puspiptek, Serpong is near surface disposal (NSD). Based on depth, NSD divided on two type, near surface NSD and medium depth NSD. Concept NSD in this research is medium depth NSD, which is between 30–300 meters. During NSD construction in medium-depth required the works of sub-surface excavation or tunneling. Analysis of in-situ stresses and sub-surface deformation performed to recognize the stress magnitude and its distribution that developed in soil/rock as well as the deformation occurred when sub-surface excavation takes place. Based on the analysis, acknowledged the magnitude of tensional and compression stress and its distribution that range from -441 kPa to 4.028 kPa with values of natural deformation or without reinforcement between 4.4 to 13.5 cm. A rather high deformation value which is achieved 13.5 cm leads to necessity of engineering reinforcement during excavation. The designs of engineering reinforcement on every excavation stage refer to the result of modeling analysis of stress and deformation distribution pattern.
Arah dan Kecepatan Aliran Air Tanah Calon Tapak Disposal Demo di Kawasan Nuklir Serpong Sucipta, Sucipta; Setiawan, Risdiyana
EKSPLORIUM Vol. 37 No. 2 (2016): NOVEMBER 2016
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/eksplorium.2016.37.2.3073

Abstract

Plan for construction and operation of demo disposal facility in Serpong Nuclear Area requires safety assessments to provide scientific evidence that the facility is safe for human and the environment. The result of the safety assessment is used also as a basis for granting environmental permits for the construction and operation of the facility. One of the site data requirements on the safety assessment is the direction and velocity of groundwater flow. Therefore, a study to determine the direction and velocity of groundwater flow at lower zone aquifer of demo disposal site candidate in Serpong Nuclear Area conducted. The research was carried out by using Rhodamin WT tracer. The tracer released in the main well (SBU) and monitored in SBP-1 (A), SBP-2 (B), and SBP-3 (C) boreholes. Based on the water samples and spatial analysis, groundwater data flow direction at a depth of 16 m towards N 240º E (west-southwest) with a velocity of 0.35 m/day up to 0.48 m/day obtained.
Co-Authors Andry Setiawan, Andry Dadong Iskandar, Dadong Hendra Adhi Pratama Heri Syaeful Imam Achmad Sadisun Megasari, Kartini Risdiyana Setiawan, Risdiyana