Microplastic Depuration Using A Circulation Pump System With Adsorbent On Brown Mussels (Modiolus Modulaides) In Tamarunang Waters

Yuliati Yuliati; Alfina Baharuddin; Hasriwiani Habo Abbas; Arni Rizqiani  Rusydi; Ikhram Hardi

doi:10.70716/mohr.v4i3.424

Authors

Yuliati Public Health Study Program, Faculty of Public Health, Universitas Muslim Indonesia, Makassar, Indonesia
Alfina Baharuddin Public Health Study Program, Faculty of Public Health, Universitas Muslim Indonesia, Makassar, Indonesia
Hasriwiani Habo Abbas Public Health Study Program, Faculty of Public Health, Universitas Muslim Indonesia, Makassar, Indonesia
Arni Rizqiani Rusydi Public Health Study Program, Faculty of Public Health, Universitas Muslim Indonesia, Makassar, Indonesia
Ikhram Hardi Public Health Study Program, Faculty of Public Health, Universitas Muslim Indonesia, Makassar, Indonesia

DOI:

https://doi.org/10.70716/mohr.v4i3.424

Keywords:

microplastics, effectiveness, depuration, circulation pump system, brown mussels

Abstract

Plastic waste from coastal settlements, fisheries, and marine activities has become a major source of microplastic pollution in the Tamarunang Waters of Jeneponto Regency, where filter-feeding brown mussels (Modiolus modulaides) readily accumulate microplastics. This study evaluated the effectiveness of microplastic depuration using a pump-circulation system with a natural bioadsorbent. A quantitative experimental approach with a completely randomized design (CRD) was employed, comprising five treatments: a control (no depuration) and depuration periods of 1, 2, 3, and 4 days, each replicated three times. Mussels were collected using purposive sampling from sites with high mussel abundance and potential plastic contamination. Of 810 mussels collected, 405 individuals were analyzed (5 treatments × 3 replications × 27 mussels). Data were analyzed using Analysis of Variance (ANOVA) and linear regression. The novelty of this study lies in the use of mashed kepok banana peels as a natural bioadsorbent. The lowest microplastic content was observed after four days of depuration. Although three- and four-day periods showed no significant difference, both were significantly more effective than shorter depuration periods. Depuration efficiency increased from 47.825% at day 0 to 94.132% after four days. Fragments, fibers, and films were the dominant types of microplastics. These findings demonstrate that a banana peel bioadsorbent, combined with a circulation system, effectively reduces microplastic contamination and provides a sustainable, low-cost depuration method. Future studies should validate this approach under commercial-scale and field conditions while assessing its effects on mussel quality and food safety.

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