Ningrum, Aprilia Putri (2025) Kombinasi Proses Anoxide - Oxide Menggunakan Free Floating Plant untuk Menyisihkan Beban Organik Pada Limbah Cair Domestik. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Domestik wastewater pollution containing organic compounds and excess nutrients such as COD (Chemical Oxygen Demand) and TN (Total Nitrogen) can disrupt the balance of aquatic ecosystems. This study aims to evaluate the effectiveness of a combined anoxic–oxic process using free-floating plants in reducing COD and TN levels in domestik wastewater. Two types of aquatic plants used were Water Lettuce (Pistia stratiotes) and Amazon Frogbit (Limnobium laevigatum). The wastewater concentrations varied at 20%, 40%, and 60%, with a retention time of five days. Parameters analyzed included DO, COD, TN, pH, and temperature. The results showed that retention time and wastewater concentration significantly influenced the effectiveness of phytoremediation. The highest reduction in COD and TN occurred at 20% concentration and on the 5th day of treatment, with efficiencies of 63.16% for COD and 70% for TN in the reactor containing Water Lettuce. Increases in DO and pH values were also observed during the process, especially under oxic conditions, which support the activity of aerobic microorganisms and plant photosynthesis. Water Lettuce demonstrated better performance compared to Amazon Frogbit, particularly at higher wastewater concentrations. Thus, the combination of an anoxic–oxic process using free-floating plants proves to be effective, simple, and environmentally friendly. This system can be applied as a sustainable alternative for small to medium-scale domestik wastewater treatment.
| 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: | Aprilia Putri Ningrum | ||||||||
| Date Deposited: | 16 Jun 2025 04:05 | ||||||||
| Last Modified: | 16 Jun 2025 04:05 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/37793 |
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