Rice Husk Activated Carbon for Manganese Removal from Well Water: Effects of Activation Time

Authors

  • Farezta Alfisyahrina Gani Jurusan Kesehatan Lingkungan, Poltekkes Kemenkes Bandung
  • Redi Yudha Irianto Environmental Health Division, Environmental Sanitation Study Program, Bandung Health Polytechnic, Ministry of Health, Bandung, Indonesia
  • Nany Djuriah Environmental Health Division, Environmental Sanitation Study Program, Bandung Health Polytechnic, Ministry of Health, Bandung, Indonesia

Keywords:

Air bersih, Mangan, Waktu Aktivasi, Sekam Padi, Karbon

Abstract

Background: Manganese (Mn) in PT. X well water was 1.61 mg/L, exceeding the Indonesian hygiene-sanitation limit of 0.1 mg/L. Objective: To determine the most effective rice-husk activated-carbon activation time for Mn removal. Methods: A pretest-posttest experiment without an untreated control compared activation for 15, 30, and 45 min at 900°C, with six replicates per group (36 pre/post samples). Mn was measured by atomic absorption spectrophotometry; pH and temperature were monitored. Kruskal-Wallis tested differences (p<0.05). Results: Mean pre-treatment Mn was 1.348, 1.365, and 1.364 mg/L; post-treatment values were 0.470, 0.335, and 0.077 mg/L, corresponding to reductions of 63.32%, 75.67%, and 94.17%. Groups differed significantly, and all six 45-min post-treatment values were below 0.1 mg/L. Conclusion: Activation at 900°C for 45 min achieved the greatest Mn removal.

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Published

2026-08-20

How to Cite

Gani, F. A., Yudha Irianto, R., & Djuriah, N. (2026). Rice Husk Activated Carbon for Manganese Removal from Well Water: Effects of Activation Time. HIGIENE: Jurnal Kesehatan Lingkungan, 11(2). Retrieved from https://journal.uin-alauddin.ac.id/index.php/higiene/article/view/59003

Issue

Vol. 11 No. 2 (2026): Kesehatan Lingkungan

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Artikel

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Copyright (c) 2026 Farezta Alfisyahrina Gani, Redi Yudha Irianto, Nany Djuriah

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