Nurjanah, Fadhilah Labibah (2025) Pengaruh Berbagai Jenis Koagulan Terhadap Karakteristik Post Coagulation Sludge Pada Proses Koagulasi-Flokulasi. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Coagulation-flocculation is a method often used in water treatment, but the use of alum as an inorganic coagulant has the potential to cause environmental impacts. This study aims to evaluate the performance of natural coagulants, namely moringa seeds and maggot shells compared to alum, both on water quality and post-coagulation sludge (PCS) characteristics. The research method used a jar test on three types of samples, namely river water, tofu wastewater, and batik wastewater. Water quality parameters tested included pH, turbidity, TSS, and color, while sludge characterization under optimum conditions was analyzed through the Sludge Volume Index (SVI) and elemental composition. The results showed that each coagulant had different advantages. Moringa seeds were the most effective in river water with a turbidity removal efficiency of 98.99%, TSS 90.91%, and color 96.20% at a dose of 50 mg/L. Alum showed the highest efficiency in river water with 98.99% turbidity, 81.82% TSS and 99.11% color at a dose of 150 mg/L, while the best maggot shells were in batik waste with 99.67% turbidity, 99.61% TSS, and 98.55% color at a dose of 100 mg/L. For SVI values vary depending on the type of sample, and the moisture content of the sludge is still high (>90%), requiring further treatment. Meanwhile the composition of the sludge shows that maggot shells are dominated by C, O, Si, Fe, and Zn elements, and moringa seeds are dominated by C, O, and Si, while alum is dominated by Al, Si, O, P. These results indicate that natural coagulants have the potential as a more environmentally friendly alternative coagulant.
| 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: | FADHILAH LABIBAH NURJANAH | ||||||||||||
| Date Deposited: | 04 Dec 2025 07:16 | ||||||||||||
| Last Modified: | 04 Dec 2025 07:16 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/47395 |
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