Lazuardy, Renaldo (2025) Phytomining Unsur Vanadium (V) dan Kromium (Cr) Menggunakan Sansevieria hahnii dan Dracaena fragrans pada Red mud dengan Penambahan Biostimulan melalui Variasi Bioaugmentasi Bacillus proteolyticus. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Indonesia memiliki sumber daya tambang melimpah, termasuk bijih bauksit, yang menghasilkan limbah red mud dengan alkalinitas tinggi dan berisiko bagi lingkungan. Fitoremediasi efektif untuk remediasi, tetapi menghasilkan biomassa terkontaminasi yang memerlukan pengelolaan lebih lanjut. Phytomining dikembangkan sebagai solusi lebih maju untuk mengekstraksi logam berat dari tanaman sekaligus meremediasi lingkungan. Penelitian ini dilakukan secara laboratorium dengan variabel berupa variasi jenis tumbuhan (Sansevieria hahnii dan Dracaena fragrans), logam berat vanadium (V) dan kromium (Cr), serta penambahan dan tanpa penambahan bakteri Bacillus proteolyticus. Tahap analisis pendahuluan meliputi uji karakteristik red mud dan 10% pupuk kandang sapi menggunakan ICP-OES, XRD, XRF, propagasi, dan aklimatisasi tumbuhan. Penelitian utama berlangsung selama 28 hari, dengan parameter morfologi tumbuhan, soil moisture, pH, EC, berat basah, dan berat kering. Sampel diambil setiap 7 hari dari media tanam, bagian tanaman lower, dan bagian tanaman upper. Penelitian ini bertujuan mengembangkan metode pengelolaan red mud melalui phytomining sebagai alternatif yang berpotensi mendukung ekstraksi dan pemanfaatan logam berat vanadium (V) dan kromium (Cr) secara berkelanjutan.
Sansevieria hahnii dan Dracaena fragrans menunjukkan kemampuan yang baik dalam menyerap logam berat, masing-masing untuk kromium (Cr) dan vanadium (V), dengan akumulasi logam tertinggi pada Sansevieria hahnii mencapai 38,05 mg/kg pada hari ke-7, dan pada Dracaena fragrans mencapai 77,75 mg/kg pada hari ke-14. Penambahan pupuk kandang menyebabkan penurunan pH di semua reaktor, termasuk reaktor kontrol dan yang berisi tanaman dengan perlakuan bakteri atau tanpa bakteri, di mana pH rata-rata awal sebesar 10,7 dan 10,6 menurun menjadi 9,5 dan 9,4 pada hari ke-28. Selain itu, interaksi Bacillus proteolyticus dengan Sansevieria hahnii cenderung menurunkan bioavailabilitas dan akumulasi logam berat, sementara interaksinya dengan Dracaena fragrans justru meningkatkan bioavailabilitas dan akumulasi logam berat.
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Indonesia has abundant mining resources, including bauxite ore, which produces red mud waste with high alkalinity and environmental risks. Phytoremediation is effective for remediation, but it generates contaminated biomass that requires further management. Phytomining is developed as a more advanced solution to extract heavy metals from plants while also remediating the environment. This study was conducted in the laboratory with variables including variations in plant species (Sansevieria hahnii and Dracaena fragrans), heavy metals vanadium (V) and chromium (Cr), and the addition or absence of Bacillus proteolyticus bacteria. Preliminary tests include the characterization of red mud and 10% cow manure using ICP-OES, XRD, XRF, SEM-EDX, propagation, and plant acclimatization. The main study lasted for 28 days with parameters such as plant morphology, soil moisture, pH, EC, wet and dry weight. Samples were taken every 7 days from the growing media, roots, and leaves. This study aims to develop a red mud management method through phytomining as an alternative that could support the extraction and sustainable utilization of heavy metals vanadium (V) and chromium (Cr). Sansevieria hahnii and Dracaena fragrans demonstrated good capability in absorbing heavy metals, specifically chromium (Cr) and vanadium (V), with the highest metal accumulation in Sansevieria hahnii reaching 38.05 mg/kg on day 7, and in Dracaena fragrans reaching 77.75 mg/kg on day 14. The addition of manure resulted in a decrease in pH across all reactors, including control reactors and those containing plants treated with or without bacteria, where the initial average pH of 10.7 and 10.6 decreased to 9.5 and 9.4, respectively, on day 28. Furthermore, the interaction of Bacillus proteolyticus with Sansevieria hahnii tended to reduce the bioavailability and accumulation of heavy metals, while its interaction with Dracaena fragrans increased the bioavailability and accumulation of heavy metals.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Sansevieria hahnii, Dracaena fragrans, phytomining, Red mud, Bacillus proteolyticus, Vanadium (V), Kromium (Cr) |
| Subjects: | Q Science > QD Chemistry > QD117.S64 Spectrophotometry Q Science > QD Chemistry > QD63 Extraction Q Science > QD Chemistry > QD96F56 Fluorescence spectroscopy Q Science > QK Botany > QK710 Plant physiology Q Science > QK Botany > QK731 Growth (Plants) Q Science > QR Microbiology > QR74.8 Bacteria S Agriculture > SB Plant culture > SB409.58 Plant propagation. Including in vitro propagation |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | Renaldo Lazuardy |
| Date Deposited: | 22 Jan 2025 15:51 |
| Last Modified: | 22 Jan 2025 15:51 |
| URI: | http://repository.its.ac.id/id/eprint/116612 |
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