Mufidah, Shafa'ul (2025) Komparasi Kinerja Membran Ultrafiltrasi Polyvinylidene Fluoride (PVDF) dan Polivinyl Chloride (PVC) Pada Air Sungai Jagir Dalam Menurunkan TDS, Kekeruhan dan Total Coliform. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
The increasing pollution of river water due to high levels of Total Dissolved Solids (TDS), turbidity, and total coliform has created an urgent need for effective and efficient water treatment technologies. One widely used method is the membrane ultrafiltration process. This study aimed to analyse and compare the performance of PVDF and PVC membranes coated with Al2O3 in reducing TDS, turbidity, and total coliform from Sungai Jagir river water, as well as to investigate the effects of varying pressure (1, 1.5, and 2 bar) and operating time (6, 12, 18, 24, and 30 minutes) on membrane flux and contaminant rejection efficiency. Prior to filtration, the river water underwent a pre-treatment adsorption process using granular activated carbon (GAC) for 10 minutes to reduce the initial pollutant load. The results showed that the PVDF membrane exhibited higher flux values compared to the PVC membrane under all tested pressures and operating times, with the highest flux recorded at 2 bar: 890.22 L/m²·h for PVDF and 608.10 L/m²·h for PVC. Both membranes achieved over 90% turbidity removal, while TDS concentrations decreased by up to approximately 4%, showing a gradual increase in rejection along with longer operation time. The total coliform removal was highly significant, with PVDF reducing counts from 33,000 MPN/100 mL to below 100 MPN/100 mL, and PVC reducing them to around 30–900 MPN/100 mL. The ANOVA three way statistical analysis revealed that membrane type, pressure, and operating time significantly affected flux, turbidity, and total coliform removal, while only operating time had a significant effect on TDS removal. Overall, this study demonstrates that PVDF membranes coated with Al₂O₃ offer superior performance compared to PVC membranes, particularly in producing higher flux and achieving more effective removal of biological contaminants. These findings support the potential application of PVDF membranes as a more efficient option for treating contaminated river water.
| 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: | Shafa'ul Mufidah | ||||||||
| Date Deposited: | 03 Nov 2025 07:24 | ||||||||
| Last Modified: | 03 Nov 2025 07:24 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/46020 |
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