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All Journal Teknosains: Media Informasi Sains dan Teknologi Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Al-Kimia JMM (Jurnal Masyarakat Mandiri) Martabe : Jurnal Pengabdian Kepada Masyarakat CARADDE: Jurnal Pengabdian Kepada Masyarakat Fullerene Journal of Chemistry Gema Wiralodra Jurnal Inovasi Teknik Kimia Journal of Appropriate Technology for Community Services Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Bubungan Tinggi: Jurnal Pengabdian Masyarakat Konservasi Hayati Yumary: Jurnal Pengabdian kepada Masyarakat Jurnal Insan Farmasi Indonesia COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Jurnal Ilmiah Berkala Sains dan Terapan Kimia Jurnal Indonesia Sosial Teknologi Nanggroe: Journal Of Scholarly Service Nanggroe: Journal of Scholarly Service Socius: Social Sciences Research Journal NAWASENA: Journal of Community Service Jurnal Penelitian Hasil Hutan
Zimon Pereiz
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, University Of Palangka Raya
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Other

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The Isolation and Identification of Bacteria with Potential for Mercury (Hg) Bioremediation from the Kahayan River Chu, Chuchita; Pereiz, Zimon; Nafisah, Zahrotun; Oksal, Efriyana; Sylvani, Miranti Maya; Irawan, Ahmad; Alfi, Febrianto
Jurnal Kimia Fullerene Vol 11 No 2: Fullerene Journal Of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v11i2.795

Abstract

The Kahayan River in Central Kalimantan is one of the waterways utilized for traditional gold mining that employs amalgamation techniques. The application of this method poses a significant risk of environmental pollution and degradation. This study was conducted to evaluate the capacity of bacteria to act as bioremediation agents for mercury (Hg) at different concentrations. The methodology involved inoculating sediment samples into Zobell 2216E medium, isolating and purifying bacterial colonies on Nutrient Agar (NA), followed by bacterial identification and assessment of mercury degradation using an Atomic Absorption Spectrophotometer (AAS). The findings revealed that isolate 34 was able to remove 132.73 ppm of Hg from an initial concentration of 250 ppm (equivalent to a 53.09% reduction), whereas isolate 108 removed 139.68 ppm, corresponding to a 55.87% reduction.
SOSIALISASI BAHAYA PERGAULAN BEBAS PADA SISWA-SISWI SMA DI KABUPATEN KATINGAN KALIMANTAN TENGAH Pereiz, Zimon; Afli, Febrianto; Hermayantiningsih, Dwi; Chuchita, Chuchita; Oksal, Efriyana; Sylvani, Miranti Maya; Saputri, Desi Riana; Pamungkas, Aji; Mart Grasella Hutapea, Sonia Tri
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 2 (2026): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i2.37872

Abstract

Abstrak: Pergaulan bebas merupakan salah satu permasalahan sosial yang sering dihadapi oleh remaja dan berpotensi berdampak negatif terhadap masa depan generasi muda. Kurangnya pemahaman serta pengawasan menjadi faktor utama yang menyebabkan remaja mudah terjerumus dalam perilaku menyimpang. Kegiatan pengabdian masyarakat ini bertujuan untuk memberikan edukasi mengenai bahaya pergaulan bebas kepada siswa-siswi SMA melalui kegiatan sosialisasi dan evaluasi berbasis pre-test dan post-test, dengan jumlah peserta kegiatan sebanyak 40 siswa. Hasil kegiatan menunjukkan peningkatan pemahaman siswa dari 22% sebelum kegiatan menjadi 91% setelah kegiatan. Hal ini menunjukkan bahwa sosialisasi efektif dalam meningkatkan kesadaran remaja terhadap pentingnya menjaga diri dari pengaruh negatif lingkungan pergaulan.Abstract: Promiscuity is a social problem frequently faced by adolescents and has the potential to negatively impact the future of the younger generation. Lack of understanding and supervision are key factors contributing to adolescents' vulnerability to deviant behavior. This community service activity aimed to educate students of State Senior High School 1 Katingan about the dangers of promiscuity through pre- and post-test-based outreach and evaluation activities. Forty students participated in the activity. Results showed an increase in student understanding, from 22% before the activity to 91% after the activity. This demonstrates that outreach is effective in raising adolescent awareness of the importance of protecting themselves from the negative influences of their social environment.
ISOLASI BAKTERI ENDOFIT DARI DAUN SUNGKAI (Peronema canescens Jack) Oksal, Efriyana; Chuchita, Chuchita; Ngazizah, Febri Nur; Pereiz, Zimon; Wulandari, Oktavia Rahmi; Yuneta, Yuneta; Natania Gracia, Amanda
Teknosains Vol 20 No 1 (2026): Januari-April
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v20i1.61258

Abstract

Sungkai (Peronema canescens Jack.) merupakan tanaman yang secara tradisional dimanfaatkan oleh masyarakat Kalimantan sebagai obat herbal, terutama melalui rebusan daun dan kulit batangnya. Namun, penelitian mengenai keberadaan dan potensi bakteri endofit pada tanaman sungkai masih sangat terbatas, padahal bakteri endofit diketahui hidup dalam jaringan tanaman dan berpotensi menghasilkan metabolit sekunder bioaktif. Tujuan penelitian ini adalah untuk mengisolasi isolat bakteri endofit yang berasosiasi dengan daun sungkai. Metode penelitian dilakukan dengan isolasi bakteri endofit dari daun sungkai, dilanjutkan mengkarakterisasi jumlah isolat yang diperoleh melalui pengujian maksroskopis Hasil penelitian menunjukkan bahwa isolat bakteri endofit dari daun sungkai berhasil diisolasi dan diperoleh satu isolat bakteri endofit dari daun sungkai, dengan karakter makroskopis berbentuk bulat, dengan permukaan datar dan warna krem.
The Potential of Ironwood as an Activated Carbon Adsorbent for Heavy Metal Mercury (Hg) Using the Pyrolysis Method Zimon Pereiz; Efriyana Oksal; Chuchita Chuchita; Miranti Maya Sylvani; Yunus Pebriyanto
Jurnal Sains dan Terapan Kimia Vol 19, No 1 (2025)
Publisher : Jurnal Ilmiah Berkala Sains dan Terapan Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v19i1.20957

Abstract

This study focuses on the utilization of ironwood as an activated carbon adsorbent to remove heavy metal mercury (Hg). The background of the problem includes mercury pollution from various industrial sources and its harmful impacts on the environment and human health. The purpose of this study was to develop an effective method for adsorbing mercury using natural ironwood materials. The research method involves the synthesis of activated carbon through pyrolysis and chemical activation processes, followed by a series of adsorption tests on mercury with variations in pH conditions, contact time, and acid concentration. The research data showed that the optimum adsorption capacity was achieved at a mercury concentration of around 500 ppm, with high adsorption efficiency at pH 1 and a contact time of 80 minutes. The results also showed that the adsorption kinetics followed a second-order model with a rate of 0.017119 g/mg.min. In conclusion, the mercury adsorption process using activated carbon from ironwood followed the Langmuir isotherm model, with an adsorption capacity of 63.036 mg/g, indicating that the adsorbent had been successfully synthesized and had an effective ability to remove mercury.
Co-Authors A, Abdullah A, Anjelika Abdul Hadjranul Fatah Abdul Hadjranul Fatah AFAF BAKTIR Afli, Febrianto Ahmad Irawan Ahmad Irawan, Ahmad Ahmad Rifai Aji Pamungkas Aji Pamungkas Alfanaar, Rokiy Alfi, Febrianto Alpian Alvin Sienna Atviaputra Amanda Natania Gracia Anatasya, Violina Andra Ari P., Eko Marwanto Heru Mulyantoro Dwi Hermayantiningsih Apriyanti, Mauliya Atviaputra, Alvin Sienna Ayuchecaria, Noverda Azmi Malya Zaki Berlisnora Dasilva, Caroline C, Chuchita Catur Prasetyo, Debby Chu, Chuchita Chuchita Chuchita Chuchita Chuchita, Chuchita Citrariana, Shesanthi Dandy, Abdullah, Jonathan Dandy, Jonathan Devianti, Gusnia Eduard, Jonathan Stefanus Efriyana Oksal Efriyana Oksal Efriyana oksal Efriyana Oksal Eka Jaya Prastiti, Arini Eni Uswatun Chasanah Erwin Prasetya Toepak Fatah, Abdul Hadjranul Fauzi, M. Zainuddin Lutfi Febrianto Afli Florensia, Ornella Arnia H, Heja Hairiah, Rusliananur Hakim, Muh. Supwatul Heja, Anjelika, Hendrik Segah Hendrik Segah, Hendrik Herlita Esra Sari Sihotang Hutabalian, Debby Catur, Gracyela Hutabalian, Gracyela Hutapea, Sonia Tri Mart Grasella I Nyoman, Sudyana, Indri Aprilia, Indri J, Julia Jonathan Dandy, Arisumi Ir L Tundan, Joy Angel Aria Suma Karelius Karelius Kartika Komara, Nisa Komara, Nisa Kartika Liswara Neneng Manurung, Stepanus Fredi Mart Grasella Hutapea, Sonia Tri Marvin Horale Pasaribu Maya Sylvani, Miranti Miranti Maya Sylvani Miranti Maya Sylvani Miranti Maya Sylvani Nafisah, Zahrotun Natalia Sri Martani Natania Gracia, Amanda Ngazizah, Febri Nur Nisa Kartika Komara Nyoman Sudyana, I Oksal, Chuchita, Efriyana Oksal, Efriyana Pangestika, Inten Pebriyanto, Yunus Prasetyo, Debby Catur Prayoga, Andika Prayoga, Apriyanti, Andika Prisnanda, Risky Rahman Rahman Rahman Rahman Rahman, Sudarman Ratna Sari, Julia, Mesra Retno Agnestisia Sabatini, Felly Sabatini, Ornella Arnia, Gusnia Devianti, Felly Saputri, Desi Riana Sari, Meiyanti Ratna Kumala Sari, Nopita Tamara Siti Unvaresi Misonia Beladona Solla, Angelia Suniti Suniti Susanti, Rapela Sylvani, Miranti Maya Telaumbanua, Mesra Ratna Sari Tundan, Arisumi Ir L Turnip, Oktaviani Naulita Wahyu Nugroho Wahyu Supriyati Waluyo Nuswantoro Wulandari, Oktavia Rahmi Yanetri Asi Nion Yanetri Asi Nion, Yanetri Asi Yerinda Natalia Nenobais Yosie Andriani Yuneta, Yuneta Yuni Damayanti Nainggolan Yunus Pebriyanto Zahrotun Nafisah Zaki, Azmi Malya