Wulandari, Salsabila Puspita (2025) KINETIKA LAJU PERTUMBUHAN BAKTERI AZOSPIRILLUM SP. DALAM BIOFERMENTASI AIR LINDI MENJADI PUPUK ORGANIK CAIR. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Leachate generated from landfill sites contains organic compounds, inorganic substances, and heavy metals that pose a risk of environmental pollution. This study aims to analyze the growth kinetics of Azospirillum sp. during the biofermentation of leachate and to evaluate the characteristics of the resulting liquid organic fertilizer (LOF). The fermentation process was carried out for 8 days with varying bacterial inoculum volumes (4 ml, 6 ml, 8 ml, and 10 ml), and bacterial concentration was measured using the Mixed Liquor Volatile Suspended Solids (MLVSS) method. The analyzed parameters included organic carbon content and bacterial concentration. The results revealed significant bacterial growth, with growth rates following the Monod model based on reaction rate constants and Monod constant. Organic carbon concentration decreased over time, while nitrogen, phosphorus, and potassium levels increased, meeting the quality standards of liquid organic fertilizer. Therefore, the biofermentation of leachate with Azospirillum sp. effectively reduces pollutants and produces environmentally friendly as an organic to chemical fertilizers.
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TD Environmental technology. Sanitary engineering T Technology > TP Chemical technology > TP155 Chemical engineering |
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| Divisions: | Faculty of Engineering > Departement of Environmental Engineering | ||||||||
| Depositing User: | Salsabila Puspita Wulandari | ||||||||
| Date Deposited: | 04 Dec 2025 05:05 | ||||||||
| Last Modified: | 04 Dec 2025 08:43 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/47734 |
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