Perangin Angin, Regina Grasia (2026) Efektifitas Biocarrier Foam Terimobilisasi Bacillus sp. dengan Teknologi Moving Bed Biofilm Reactor (MBBR) dalam Pengolahan Limbah Laundry. Undergraduate thesis, UPN Veteran Jawa Timur.
![[img]](https://repository.upnjatim.ac.id/style/images/fileicons/text.png) |
Text (Cover)
22034010012.-cover.pdf.pdf Download (5MB) |
|
Text (Bab 1)
22034010012.-bab1.pdf.pdf Download (104kB) |
|
Text (Bab 2)
22034010012.-bab2.pdf.pdf Restricted to Repository staff only until 31 August 2029. Download (363kB) |
|
Text (Bab 3)
22034010012.-bab3.pdf.pdf Restricted to Repository staff only until 31 August 2029. Download (231kB) |
|
Text (Bab 4)
22034010012.-bab4.pdf.pdf Restricted to Repository staff only until 31 August 2029. Download (933kB) |
|
Text (Bab 5)
22034010012.-bab5.pdf.pdf Download (35kB) |
|
Text (Daftar Pustaka)
22034010012.-daftarpustaka.pdf.pdf Download (181kB) |
|
Text (Lampiran)
22034010012.-lampiran.pdf.pdf Restricted to Repository staff only Download (8MB) |
Abstract
Laundry wastewater contains pollutants such as surfactants, phosphates, and substances contributing to Biochemical Oxygen Demand (BOD). If discharged directly into water bodies, these substances cause foam accumulation hindering oxygen diffusion and lead to eutrophication and reduced dissolved oxygen levels due to increased microbial activity. Consequently, the wastewater requires treatment before environmental discharge. This study employed a laboratory scale Moving Bed Biofilm Reactor (MBBR) biological treatment process using Polyurethane Foam (PUF) media as a substrate for microbial attachment. The research aimed to analyze the MBBRs performance using PUF biocarriers immobilized with Bacillus sp. in removing surfactants, phosphates, and BOD to determine the effects of Bacillus sp. dosage and Hydraulic Retention Time (HRT) on removal efficiency, and to characterize the Bacillus sp. immobilized PUF media. The HRT variations tested were 8, 12, 20, and 24 hours, while Bacillus sp. dosages were 60 g/L and 120 g/L. Results demonstrated that the Bacillus sp. immobilized PUF media in the MBBR effectively removed 100% of surfactants, 99% of phosphates and 81,7% of BOD. This effectiveness was attributed to the porous structure of the PUF, a 40% media fill ratio, and adequate oxygen supply, which fostered microbial growth and degradation capabilities. A dosage of 120 g/L with an 8 hour HRT proved optimal for surfactant reduction, achieving a 98.83% removal rate (final concentration: 6.14 mg/L). Phosphate reduction was optimal at a dosage of 60 g/L with an 8-hour HRT, achieving a 99.25% removal rate (final concentration: 0.391 mg/L). For BOD a dosage of 60 g/L with a 24 hour HRT achieved an 81.7% reduction (final concentration: 84.8 mg/L). SEM analysis revealed that the PUF media pores were covered by biofilm, physically, the media had turned brown and developed a slippery surface texture. The characteristics indicate that the attachment of microorganisms to the media surface via Extracellular Polymeric Substances (EPS) renders the parameter degradable. Keywords: Bacillus sp., immobilization, laundry, MBBR, Polyurethane Foam (PUF)
| Item Type: | Thesis (Undergraduate) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Contributors: |
|
||||||||
| Subjects: | Q Science > Q Science (General) Q Science > QR Microbiology T Technology > TD Environmental technology. Sanitary engineering |
||||||||
| Divisions: | Faculty of Engineering > Departement of Environmental Engineering | ||||||||
| Depositing User: | Regina Grasia Perangin Angin | ||||||||
| Date Deposited: | 31 Aug 2026 07:26 | ||||||||
| Last Modified: | 31 Aug 2026 08:33 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/59436 |
Actions (login required)
 |
View Item |