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All Journal Jurnal Pengajaran MIPA Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi
Rahmansyah, Dicky
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Earth & Planetary Sciences Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences

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KAPASITAS BIOSORPSI JAMUR TIRAM PUTIH (Pleurotus ostreatus) TERHADAP LOGAM KROM Dalam LIMBAH CAIR PENYAMAKAN KULIT Saefudin, Saefudin; N., Tina Safaria; Solihat, Rini; Rahmansyah, Dicky
Jurnal Pengajaran MIPA Vol 11, No 1 (2008): JPMIPA: Volume 11, Issue 1, 2008
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v11i1.35759

Abstract

Telah dilakukan penelitian mengenai penggunaan biomasa jamur Pleurotus ostreatus dalam penyerapan logam krom dari larutan limbah cair penyamakan kulit melalui proses biosorpsi. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan biomassa yang berbeda-beda terhadap kapasitas biosorpsi logam krom oleh jamur Pleurotus ostreatus pada limbah cair penyamakan kulit. Parameter yang diukur yaitu banyaknya serapan ion logam (q) untuk tiap gram biomassa yang digunakan. Enam variasi biomassa kering dari jamur Pleurotus ostreatus yaitu (0,04) g; (0,08) g; (0,12) g; (0,16) g; (0,20) g; (0,24) g dalam bentuk serbuk dicampurkan kedalam 0,25 L larutan limbah penyamakan kulit. Untuk pH larutan diatur hingga pH 5 dan waktu kontak penelitian yang digunakan adalah 80 menit berdasarkan hasil pra-penelitian. Konsentrasi larutan krom sebelum dan setelah perlakuan ditentukan dengan metoda AAS (Atomic Absorption Spectrometry). Konsentrasi logam krom sebelum perlakuan adalah 297,5 mg/L dan setelah proses pengontakan dengan biomassa jamur Pleurotus ostreatus kadar logam krom dalam larutan limbah dapat terserap hingga kisaran 73%- 80%. Serapan ion logam tertinggi terjadi pada biomassa perlakuan 0,04 gram yaitu sebesar 148,83 ± 2,58 mg/g dan terendah pada biomassa perlakuan 0,24 gram yaitu sebesar 22,75 ± 0,62 mg/g. Kapasitas biosorpsi maksimum dari jamur tiram putih (Pleurotus ostreatus) terjadi pada konsentrasi biomassa yang rendah dan mengalami penurunan seiring dengan peningkatan kosentrasi biomassa yang digunakan.
Sosialisasi Dampak Limbah Tailing dan Pelatihan Pembuatan Kolam Pengendapan Tailing di Tambang Emas Rakyat Juriya Ninasafitri, Ninasafitri; Lihawa, Fitryane; Afrianti Sangkota, Vivi Dia; Rahmansyah, Dicky; B Nteseo, Airin; Uno, Hesti; Rikarno, Jemi
Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi Vol 5, No 1: February 2026
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/ljpmt.v5i1.34742

Abstract

Small-scale mining in Juriya Village has long been the main source of income for the community. However, the traditional mining methods used still disregard the principles of good environmental management, resulting in environmental pollution, particularly tailings waste that has contaminated nearby rivers. Survey results at the mining site show that several mining drums are not equipped with tailings settling ponds that meet standards, resulting in tailings waste seeping into river flows. To address this issue, community service activities were carried out with the aim of increasing the understanding and awareness of the community and miners regarding the impact of tailings pollution and the importance of responsible waste management. These activities included socialization, education, and training on the construction of tailings settling ponds. The results of these activities showed an 88% increase in community understanding of the environmental hazards of tailings, as well as increased community knowledge about the process of constructing compartmentalized tailings settling ponds. This demonstrates the important role of socialization, education, and training in effective tailings waste management efforts. 
Co-Authors Afrianti Sangkota, Vivi Dia B Nteseo, Airin Fitryane Lihawa N., Tina Safaria Ninasafitri, Ninasafitri Rikarno, Jemi Rini Solihat Saefudin Saefudin Uno, Hesti