Comparative Analysis of Banana and Cempedak Peel Extracts as Natural coagulants at Different pH Levels in Wastewater Treatment
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Keywords:
Natural Coagulant, Banana Peel, Cempedak Peel, Extract Coagulant, Wastewater TreatmentAbstract
The increasing demand for sustainable water treatment has opened the potential of converting
chemical-based coagulants to natural resources coagulants. Natural resources such as fruit peel, beans, and
seeds offer eco-friendly alternatives compared to chemical coagulants. Other than that, plant-based
coagulants reduce the production of harmful sludge and promote sustainable resources because of its
availability on the market worldwide. This study investigates the effectiveness of Musa sp. (banana) peel
and Artocarpus integer (cempedak) peel extract as natural coagulants for water treatment with different pH
levels. Through controlled experiments, the performance measures based on their ability to reduce turbidity
reduction. The banana-peel and cempedak-peel dried at temperatures 30℃ and 40℃ respectively. Then
dried peels are ground and stored in an airtight container before extraction. Banana-peel and cempedak
peel were extracted separately using calcium chloride (CaCl₂) and used in the jar test experiment to reduce
turbidity reduction at different pH values. The synthetic wastewater pH varied using 0.5M NaOH and 0.5M
HCl. Each extract shows different results, whereas for banana-peel extract the turbidity reduction is higher
at pH 9 but for cempedak-peel, the turbidity reduction will be higher at pH 5. The findings could encourage
the use of natural resources coagulants in diverse wastewater treatment scenarios, reducing dependence on
chemical-based coagulant treatment.
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