Rosyadi, Muhammad Rizal (2026) Pengaruh Seed Material Dan Kecepatan Aliran Terhadap Kristalisasi Struvite Dari Limbah Bittern Menggunakan Fluidized Bed Reaktor. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Bittern waste from salt production contains high magnesium (Mg) concentrations, making it a potential magnesium source for struvite (MgNH₄PO₄·6H₂O) crystallization. This study aims to investigate the effects of seed material type, flow velocity, and reaction time on struvite crystallization using a Fluidized Bed Reactor (FBR). Silica sand and zeolite were used as seed materials. The analyzed parameters included magnesium removal efficiency, crystal mass production, and crystal characteristics using SEM-EDX and XRD analyses. The results showed that seed material type, flow velocity, and reaction time significantly influenced struvite crystallization. Zeolite produced the best performance with 84.5% magnesium removal efficiency and the highest crystal mass production of 41 grams under optimum operating conditions. Characterization results confirmed the presence of struvite-forming elements and diffraction patterns consistent with standard struvite. This study demonstrates that bittern waste utilization through FBR technology has potential as an alternative approach for waste treatment and valuable resource recovery.
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TD Environmental technology. Sanitary engineering | ||||||||
| Divisions: | Faculty of Engineering > Departement of Environmental Engineering | ||||||||
| Depositing User: | Muhammad rizal Rosyadi | ||||||||
| Date Deposited: | 02 Sep 2026 03:10 | ||||||||
| Last Modified: | 02 Sep 2026 03:10 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/59621 |
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