Syakiroh, Maulidah (2025) Pengolahan Limbah Cair Industri Pengolahan Ikan menggunakan Metode Multi Soil Layering dengan Uji Mortalitas Ikan sebagai Bioindikator. Undergraduate thesis, UNIVERSITAS PEMBANGUNAN NASIONAL "VETERAN" JAWA TIMUR.
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Abstract
The wastewater generated by fish-processing industries in Lamongan Regency contains TSS, BOD₅ and COD concentrations that exceed the quality standards specified in East Java Provincial Regulation No. 72/2013. The media in the Multi Soil Layering method consist of a mixture of soil and charcoal, along with a permeable layer. This research aims to analyze the effectiveness of MSL method with variations in soil type, Hydraulic Loading Rate, and sampling time. The results indicate that red soil is the most effective in removing TSS (89.26%), while andosol soil is more efficient in reducing BOD₅ (42.86%) and COD (68.33%). The physical, chemical, and mineral properties of each soil type significantly influence pollutant removal performance. Pollutant removal at an HLR of 0,2 m3/m².hour was more optimal compared to 0,4 m3/m².hour, as the lower HLR allows longer contact time between the wastewater and the media in the reactor. Sampling at the 7-hour mark yields optimal efficiency, indicating that the media had not yet reached saturation. Bioindicator tests showed a fish survival rate of less than 75%, indicating that the treated wastewater remains toxic. Overall, the MSL method is fairly effective in reducing pollutant loads, however it has not yet met biological safety standards.
| 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: | Maulidah Syakiroh | ||||||||
| Date Deposited: | 04 Dec 2025 07:32 | ||||||||
| Last Modified: | 04 Dec 2025 07:33 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/47745 |
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