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All Journal Room of Civil Society Development Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Room of Civil Social Development
Anca Awal Sembada
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Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Social Sciences Other

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Ability of greater duckweed (Spirodela polyrrhiza) to absorb cadmium and its potency as phytoremediator Anca Awal Sembada; Teguh Adhitia Suyadi
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol. 7 No. 02 (2022): Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Publisher : Biology Education Department, Universitas Insan Budi Utomo, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/ebio.v7i02.1933

Abstract

Phytoremediation is a method that uses the ability of plants to absorb pollutants in the environment both on land and in water. This study aims to explore duckweed which is a candidate for phytoremediator. Duckweed is a small aquatic plant that grows very fast. In this study, duckweed used is Spirodela polyrrhiza and cadmium was chosen as a model pollutant with concentrations of 0.05 and 0.1 ppm. Cultivation was done for 7 days. The specific growth rates in the 0.05 and 0.1 ppm treatments were decreased, 0.118±0.001 and 0.11±0.002 days-1, respectively, when compared to the control, 0.143±0.002 days-1. S. polyrrhiza was able to absorb cadmium with absorption capacity of 66.4 and 67.2 % at 0.05 and 0.1 ppm, respectively. These showed the potential of duckweed to be further developed as a phytoremediator for the environment.
Community-Based Pyrolysis Training and Technology Transfer for Sustainable Biomass Utilization in Metut Village Anne Hadiyane; Alfi Rumidatul; Anca Awal Sembada; Hadimanah Fikrudien Bahtiar; Atmawi Darwis; Mustika Dewi; Imra Imra
Room of Civil Society Development Vol. 5 No. 3 (2026): Room of Civil Society Development
Publisher : Lembaga Riset dan Inovasi Masyarakat Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59110/rcsd.959

Abstract

Metut Village, Mentarang Hulu District, Malinau Regency, North Kalimantan, possesses abundant woody biomass residues that remain largely underutilized despite their potential economic and environmental value. Simultaneously, local communities face challenges related to low soil fertility and limited success in agarwood (Aquilaria spp.) seed germination. This community service program aimed to introduce pyrolysis technology for converting woody biomass into biochar and liquid smoke while strengthening local capacity through training and technology transfer. By converting biomass residues that were previously left unmanaged or openly burned into valuable products, the program directly contributes to more sustainable biomass waste management at the village level. The three-day program involved 25 participants, including farmers, agarwood cultivators, village officials, women engaged in agriculture, and village youth. Activities comprised educational workshops, practical demonstrations, hands-on training, and the donation of a portable pyrolysis unit. Program effectiveness was evaluated through pre-test and post-test assessments and observation of participants’ practical performance. Results demonstrated a significant increase in knowledge, with average scores rising from 34.2% before training to 82.7% after training, reflecting a marked enhancement in community capacity to independently manage biomass resources.  All participants successfully operated the pyrolysis unit during practical sessions. A demonstration run using 12 kg of dry woody branches yielded approximately 3.2 kg of biochar and 2.1 L of liquid smoke, both promising for improving soil fertility and supporting agarwood cultivation. The donated equipment and operational manual provide a practical, replicable foundation for continued community-led biochar and liquid smoke production, supporting the long-term sustainability of biomass utilization and value-added agricultural applications.
Community-Based Pyrolysis Training and Technology Transfer for Sustainable Biomass Utilization in Metut Village Anne Hadiyane; Alfi Rumidatul; Anca Awal Sembada; Hadimanah Fikrudien Bahtiar; Atmawi Darwis; Mustika Dewi; Imra Imra
Room of Civil Society Development Vol. 5 No. 3 (2026): Room of Civil Society Development
Publisher : Lembaga Riset dan Inovasi Masyarakat Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59110/rcsd.959

Abstract

Metut Village, Mentarang Hulu District, Malinau Regency, North Kalimantan, possesses abundant woody biomass residues that remain largely underutilized despite their potential economic and environmental value. Simultaneously, local communities face challenges related to low soil fertility and limited success in agarwood (Aquilaria spp.) seed germination. This community service program aimed to introduce pyrolysis technology for converting woody biomass into biochar and liquid smoke while strengthening local capacity through training and technology transfer. By converting biomass residues that were previously left unmanaged or openly burned into valuable products, the program directly contributes to more sustainable biomass waste management at the village level. The three-day program involved 25 participants, including farmers, agarwood cultivators, village officials, women engaged in agriculture, and village youth. Activities comprised educational workshops, practical demonstrations, hands-on training, and the donation of a portable pyrolysis unit. Program effectiveness was evaluated through pre-test and post-test assessments and observation of participants’ practical performance. Results demonstrated a significant increase in knowledge, with average scores rising from 34.2% before training to 82.7% after training, reflecting a marked enhancement in community capacity to independently manage biomass resources.  All participants successfully operated the pyrolysis unit during practical sessions. A demonstration run using 12 kg of dry woody branches yielded approximately 3.2 kg of biochar and 2.1 L of liquid smoke, both promising for improving soil fertility and supporting agarwood cultivation. The donated equipment and operational manual provide a practical, replicable foundation for continued community-led biochar and liquid smoke production, supporting the long-term sustainability of biomass utilization and value-added agricultural applications.
Co-Authors Atmawi Darwis Hadimanah Fikrudien Bahtiar Hadiyane, Anne imra imra Mustika Dewi Rumidatul, Alfi Teguh Adhitia Suyadi