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All Journal Jurnal Pengabdian Masyarakat Asia Journal Serambi Engineering (JSE)
Riesnawa, Yurdien Dellan
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Arts Humanities Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Other

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Training on the Production of Organic Compost Fertilizer from Mushroom Baglog Waste Riesnawa, Yurdien Dellan; Setiyawan, Hendhi; Rizky, Miftakhul; Fadilah, Nurul; Chairil, Augustin Mustika
Jurnal Pengabdian Masyarakat Vol. 6 No. 2 (2025): Jurnal Pengabdian Masyarakat
Publisher : Institut Teknologi dan Bisnis Asia Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32815/jpm.v6i2.2761

Abstract

Purpose: Organic waste from oyster mushroom cultivation bags in Gayungan Village, RW 03, has long been underutilized. The purpose of making compost from oyster mushroom cultivation bag waste is to improve the community's knowledge and skills in sustainable waste management. Method: The training was conducted through socialization, question and answer sessions, and mentoring, involving 25 participants. The approach used was as follows: quantitative data was collected through pre- and post-training evaluations, while qualitative insights were obtained from interviews and field observations. The data was analyzed using descriptive statistics and thematic analysis. Practical Applications: This training effectively improves participants' knowledge and skills in processing mushroom baglog waste into organic fertilizer. This raises public awareness, reduces waste accumulation, and encourages environmentally friendly agricultural practices. Some residents have implemented composting techniques independently, demonstrating the potential for small-scale economic development. This program supports sustainable waste management and community empowerment. Conclusion: This program demonstrates that targeted environmental education combined with hands-on practice can foster behavioral change, promote circular economy principles, and enhance community resilience through sustainable agriculture.
Synthesis and Characterization of Silica from Lapindo Mud Waste with Acid and Base Solvents Riesnawa, Yurdien Dellan; Azaria, Atha Nur; Reva Edra Nugraha
Jurnal Serambi Engineering Vol. 11 No. 2 (2026): April 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Lapindo mud is a geological waste product resulting from the mud eruption in Sidoarjo, East Java, Indonesia, which continues to raise environmental concerns. However, this material has considerable potential due to its high silica (SiO2) content. This study evaluates the effectiveness of acid leaching and alkaline precipitation methods for extracting silica from Lapindo mud and investigates the properties of the resulting silica. Acid leaching was conducted using HCl (4, 8, and 10 M), while alkaline treatment employed NaOH (2, 6, 8, 10, and 12 M) and KOH (8, 10, and 12 M). The results showed that acid leaching is effective in removing metallic impurities without dissolving the silica framework, resulting in only a limited increase in SiO2 content from 54% to 57%. On other hand, silica purity was greatly increased by precipitation using a base solvent; the maximum SiO2 content was achieved at 97.5% with 10M NaOH. Nitrogen adsorption-desorption analysis shows that the precipitated silica had mesoporous properties with a type IV isotherm and an average pore size of 20.60 nm, while XRD analysis verifies the conversion of crystalline silica into amorphous silica. Thus, the most efficient technique for generating high-quality silica from Lapindo mud waste is alkaline precipitation with 10M NaOH
Co-Authors Azaria, Atha Nur Chairil, Augustin Mustika Nurul Fadilah, Nurul Reva Edra Nugraha Rizky, Miftakhul Setiyawan, Hendhi