| dc.contributor.advisor | Fauzi, Anas Miftah | |
| dc.contributor.advisor | Yani, Moh. | |
| dc.contributor.author | Simatupang, Yeni Veronika | |
| dc.date.accessioned | 2025-08-09T00:15:42Z | |
| dc.date.available | 2025-08-09T00:15:42Z | |
| dc.date.issued | 2025 | |
| dc.identifier.uri | http://repository.ipb.ac.id/handle/123456789/168495 | |
| dc.description.abstract | Pencemaran tanah oleh minyak bumi merupakan masalah lingkungan serius
yang memerlukan solusi remediasi yang efektif dan ramah lingkungan. Penelitian
ini bertujuan untuk menganalisis kinerja bioremediasi tanah tercemar minyak bumi
menggunakan formula Bio-Oil Spill Dispersant (Bio-OSD) berbahan kelapa sawit
sebagai media pembawa endospora bakteri pendegradasi hidrokarbon, Bacillus
pseudomycoides RAY21.
Penelitian ini dilakukan untuk menganalisis viabilitas (daya tahan) endospora
Bacillus pseudomycoides RAY21 dalam Bio-OSD selama 30 hari, serta uji kinerja
bioremediasi pada bioreaktor menggunakan tanah tercemar minyak bumi dalam
kondisi steril dan non-steril selama empat minggu. Kinerja dievaluasi melalui
analisis Total Petroleum Hydrocarbon (TPH) secara gravimetri, pengukuran
parameter lingkungan (pH, suhu, kadar air, populasi mikrob), dan analisis
perubahan senyawa hidrokarbon menggunakan Gas Chromatography-Mass
Spectrometry (GC-MS). Perbandingan efisiensi biodegradasi dilakukan antara
pengaplikasian formula tunggal (Bio-OSD mengandung endospora) dengan
pengaplikasian bertahap (Bio-OSD terlebih dahulu, diikuti inokulasi bakteri).
Hasil penelitian menunjukkan bahwa endospora B. pseudomycoides RAY21
mampu bertahan dan tetap viabel di dalam media pembawa Bio-OSD selama 30
hari masa penyimpanan. Perlakuan menggunakan formula Bio-OSD yang
mengandung endospora secara signifikan lebih unggul dibandingkan perlakuan
tunggal Bio-OSD saja, kultur bakteri B. pseudomycoides saja, dan perlakuan
bertahap, dengan nilai efisiensi degradasi TPH mencapai 76,58% pada tanah steril
(S4) dan 70,11% pada tanah non-steril (N4) dalam empat minggu. Metode aplikasi
menggunakan Bio-OSD mengandung endospora B. pseudomycoides terbukti lebih
efektif dibandingkan dengan metode aplikasi bertahap. Analisis GC-MS
mengonfirmasi bahwa perlakuan ini berhasil mendegradasi fraksi hidrokarbon yang
kompleks dan bersifat rekalsitran (sulit terurai), termasuk senyawa rantai panjang
seperti n-Hexatriacontane (C36) dan n-Dotriacontane (C32). Penelitian ini
membuktikan bahwa formula Bio-OSD mengandung endospora B. pseudomycoides
RAY21 merupakan agen bioremediasi yang stabil dan efektif untuk pemulihan
tanah yang terkontaminasi minyak bumi. | |
| dc.description.abstract | Soil contamination by crude oil is a serious environmental problem that
requires effective and eco-friendly remediation solutions. This study aims to
analyze the performance of bioremediation for crude oil-contaminated soil using a
Bio-Oil Spill Dispersant (Bio-OSD) formula derived from palm oil as a carrier
medium for hydrocarbon-degrading bacterial endospores, Bacillus pseudomycoides
RAY21.
The research was conducted to analyze the viability of Bacillus
pseudomycoides RAY21 endospores in Bio-OSD over 30 days, as well as to
evaluate the bioremediation performance in a bioreactor using crude oil
contaminated soil under sterile and non-sterile conditions over four weeks.
Performance was evaluated through gravimetric analysis of Total Petroleum
Hydrocarbons (TPH), measurement of environmental parameters (pH, temperature,
moisture content, microbial population), and analysis of hydrocarbon compound
changes using Gas Chromatography-Mass Spectrometry (GC-MS). The
biodegradating efficiency was compared between a single-application formula
(Bio-OSD containing endospores) and a stepwise application (Bio-OSD applied
first, followed by bacterial inoculation).
The results showed that B. pseudomycoides RAY21 endospores were able to
survive and remain viable in the Bio-OSD carrier medium for 30 days of storage.
Treatment using the Bio-OSD formula containing endospores was significantly
superior to other treatments, with TPH degradation efficiency reaching 76.58% in
sterile soil (S4) and 70.11% in non-sterile soil (N4) within four weeks. This
application method also proved to be more effective than the stepwise application
method. GC-MS analysis confirmed that this treatment successfully degraded
complex and recalcitrant hydrocarbon fractions, including long-chain compounds
such as n-Hexatriacontane (C36) and n-Dotriacontane (C32). This study
demonstrates that the Bio-OSD formula containing B. pseudomycoides RAY21
endospores is a stable and effective bioremediation agent for the recovery of crude
oil-contaminated soil. | |
| dc.description.sponsorship | Kerjasama antar Direktorat Jenderal Pendidikan Tinggi, yang berada di bawah Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi (Kemendikbudristek) dengan IPB University (Nomor Surat: 31/E1/KS.00.00/2024 dan 9103/IT3.LI/HK.07.00/P/T/2024). | |
| dc.language.iso | id | |
| dc.publisher | IPB University | id |
| dc.title | Kinerja Bioremidiasi Tanah Tercemar Minyak Bumi Menggunakan Bio-Oil Spill Dispersant yang Mengandung Endospora Bacillus pseudomycoides RAY21 | id |
| dc.title.alternative | Bioremidiation Performance of Crude oil-Contaminated Soil Using a Bio-Oil Spill Dispersant Containing Bacillus pseudomycoides RAY21 | |
| dc.type | Tesis | |
| dc.subject.keyword | minyak bumi | id |
| dc.subject.keyword | Bacillus pseudomycoides RAY21 | id |
| dc.subject.keyword | Bio-OSD | id |
| dc.subject.keyword | bioremediasi | id |
| dc.subject.keyword | endospora | id |