# Evaluation of an electrocoagulation–bioball biofilter system for industrial laundry wastewater treatment
> Asril M.S.

URL kanonis: https://discover.unhas.ac.id/publications/pub_scopus_105035191095
Jurnal / Konferensi: Aims Environmental Science
Tahun terbit: 2026
DOI: https://doi.org/10.3934/environsci.2026011
ISSN: 23720352
Kuartil SJR: Q3
Citations: 0

## Authors
- Asril M.S.

## Abstract
Background: Laundry wastewater contains a range of hazardous substances, including phosphates, surfactants, BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), and TSS (To-tal Suspended Solids), which can pollute the environment. Thus, effective laundry wastewater management is crucial to reducing negative impacts on water quality and aquatic ecosystems. Objective: We aimed to analyse the effectiveness of small-scale laundry wastewater treatment using electrocoagulation technology combined with a bioball media biofilter. Methods: A quantitative experiment with a one-group pretest-posttest design was used. The tests were conducted on three reactors: Electrocoagulation, a bioball biofilter, and a combination of both, with measurements of physical and chemical wastewater parameters, namely TSS, BOD, COD, and phosphate. Results: The results showed that the combination of electrocoagulation and bioball biofilter technology produced a significant reduction in all parameters: TSS (82.5%), BOD (83.91%), COD (82.27%), and phosphate (97.27%) after 12 hours of treatment. The ANOVA test showed significant differences in TSS (P = 0.000) and BOD (P = 0.036), but not in COD (P = 0.290) or phosphate (P = 0.619). Conclusion: The combination of electrocoagulation and bioball biofilters is highly effective for treating laundry wastewater, achieving significant reductions in TSS, BOD, COD, and phosphate levels and meeting stricter wastewater quality standards.

## Keywords
- Biofilter
- Waste management
- Environmental science
- Sewage treatment
- Laundry
- Wastewater
- Environmental engineering
- Pulp and paper industry
- Industrial wastewater treatment
- Filter (signal processing)
- Water treatment
- Waste treatment
- Effluent
- Sewage sludge treatment

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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