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ESTD Year: 2017 | Impact Factor (2026): 8.7
DOI Prefix: 10.47001/IRJIET
ESTD Year: 2017 | Impact Factor (2026): 8.7
DOI Prefix: 10.47001/IRJIET
Vol 10 No 6 (2026): Volume 10, Issue 6, June 2026 | Pages: 174-179
International Research Journal of Innovations in Engineering and Technology
OPEN ACCESS | Research Article | Published Date: 18-06-2026
The hospitality sector generates domestic wastewater that can potentially pollute the environment if not properly treated. Grand Candi Hotel Semarang produces wastewater with BOD 80 mg/L, COD 179.3 mg/L, TSS 36 mg/L, oil and grease 52 mg/L, pH 6.12, and fecal coliform 17,900 MPN/100 mL, with an average discharge of 143.3 m³/day. The existing wastewater treatment plant (WWTP) is known to be operating sub-optimally, thus requiring a redesign of the treatment system. This study aims to redesign the WWTP by selecting the most appropriate treatment technology based on the hotel's wastewater characteristics and operational conditions. The selection of treatment alternatives was conducted using the Multi-Criteria Decision Making (MCDM) method. The selected treatment units include a grease trap, bar screen, equalization tank, moving-bed biofilm reactor (MBBR), sedimentation tank, sludge holding tank, disinfection tank, and effluent tank. The results indicate that implementing MBBR technology can improve the removal efficiency of organic matter and suspended solids, producing effluent that meets the wastewater quality standards set by Permen LH No. 11 of 2025.
Hotel wastewater treatment plant, redesign, MBBR, domestic wastewater.
Marsha Febrina Noorsy, Muhammad Faza Faidhan, Nurandani Hardyanti, & Wiharyanto Oktiawan. (2026). Performance Evaluation and Redesign of Hotel Wastewater Treatment Plant to Improve Effluent Compliance and Operational. International Research Journal of Innovations in Engineering and Technology - IRJIET, 10(6), 174-179. Article DOI https://doi.org/10.47001/IRJIET/2026.106021
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