Fitriyah, Lailatul (2025) Efektivitas Sequencing Batch Reactor (SBR) dalam Penyisihan COD, TSS dan Warna pada Limbah Batik. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
The batik industry in Indonesia generates substantial amounts of wastewater containing organic compounds, synthetic dyes, and suspended solids, which have the potential to pollute the environment. This study aims to evaluate the effectiveness of Sequencing Batch Reactor (SBR) technology in reducing pollutant parameters, namely Chemical Oxygen Demand (COD), Total Suspended Solids (TSS), and color in batik wastewater, and to assess the influence of variations in Hydraulic Retention Time (HRT) and aeration rate. The research stages included initial wastewater characterization, pre-treatment using coconut shell activated carbon, seeding, microorganism acclimatization, and main treatment with SBR. Variations applied were HRTs of 18, 24, 32, and 38 hours, and aeration rates of 7 and 14 L/min. The results showed that initial COD, TSS, and color concentrations in batik wastewater exceeded the established quality standards. The SBR process, combined with pre-treatment and suitable operational conditions, improved pollutant removal efficiency, showing a significant decreasing trend in COD, TSS, and color. The highest removal efficiencies were achieved at HRT 38 hours, with COD 92.12%, TSS 92,46%, and color 62,39%. Bacteria identified in the process included Pseudomonas sp., Bacillus sp., and Lactobacillus sp. Statistical analysis using One-Way ANOVA confirmed the significant effect of HRT and aeration rate on SBR performance. Microorganism identification in activated sludge also revealed bacterial groups that play an important role in the biodegradation of organic compounds and dyes. Keywords: batik wastewater, COD, TSS, color, Sequencing Batch Reactor (SBR), aeration rate, HRT
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TD Environmental technology. Sanitary engineering T Technology > TP Chemical technology |
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| Divisions: | Faculty of Engineering > Departement of Environmental Engineering | ||||||||
| Depositing User: | Lailatul Fitriyah | ||||||||
| Date Deposited: | 03 Nov 2025 07:38 | ||||||||
| Last Modified: | 03 Nov 2025 07:38 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/46024 |
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