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All Journal Jurnal Pendidikan Matematika dan IPA
Putri, Emilya
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Agriculture, Biological Sciences & Forestry Chemistry Education Mathematics Physics

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EXPLORATION OF INDIGENOUS LEAD (PB)-RESISTANT BACTERIA FROM RUBBER WASTEWATER AS CANDIDATES FOR BIOREMEDIATION AGENTS Putri, Emilya; Febria, Fuji Astuti; Tjong, Djong Hon
Jurnal Pendidikan Matematika dan IPA Vol 16, No 3 (2025): September 2025
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jpmipa.v16i3.93437

Abstract

The presence of heavy metals such as lead (Pb) in rubber processing wastewater originates from coagulant materials, vulcanization processes, and raw water contamination. Pb is toxic and persistent, thus requiring proper treatment. This study aims to isolate indigenous bacteria from rubber wastewater that are resistant to Pb and have potential as bioremediation agents. Isolation was performed using the dilution-pour plate method, with selection on a medium containing Pb(NO₃)â‚‚. Resistance tests were conducted at increasing concentrations (100"“350 ppm). Three isolates (IS-1, IS-2, IS-3) were obtained, with IS-3 exhibiting the best growth (μ = 0.641 day⁻ ¹; generation time (G) 1.08 days). Molecular identification of the best bacterial isolate revealed that IS-3 is Pseudomonas protegens. This isolate shows potential as a bioremediation agent for Pb contamination.
Co-Authors Djong Hon Tjong Fuji Astuti Febria