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All Journal TEKAD : Teknik Mengabdi
Exaudi, Theresia Rosma
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Humanities Engineering Environmental Science Social Sciences

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Processing of Biogas Slurry Waste from the Integrated Resource Recovery Center (IRRC) Pasar Mantung Into Solid Fertilizer Based on Circular Economy Oktavianty, Oke; Kusumaningdyah, Widha; Azlia, Wifqi; Sari, Ratih Ardia; Sumantri, Yeni; Darmawan, Angelo Mundi; Ghaisani, Fahreza Aryan; Darmawan, Caroline Sri; Fadhillah, Syifa; Exaudi, Theresia Rosma
TEKAD : Teknik Mengabdi Vol. 5 No. 2 (2026)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.tekad.2026.05.2.6

Abstract

This community service program aims to optimize the utilization of slurry waste from the Integrated Resource Recovery Center (IRRC) Pasar Mantung into solid fertilizer based on a circular economy approach. The activities included slurry sampling, laboratory testing of NPK content, solid fertilizer formulation, technical training for IRRC operators, and the establishment of a micro-enterprise group for fertilizer management. Laboratory test results showed that the IRRC slurry-based solid fertilizer has a neutral pH (6.6), high organic carbon content (26.82–41.47%), and an ideal C/N ratio (12). Although the potassium (K) content (0.37%) remains low, the fertilizer has met the basic criteria for viable organic fertilizer use. The program also resulted in improved farmer capacity in waste processing and the implementation of circular economy practices in the Pujon region.
Co-Authors Azlia, Wifqi Darmawan, Angelo Mundi Darmawan, Caroline Sri Fadhillah, Syifa Ghaisani, Fahreza Aryan Oke Oktavianty Ratih Ardia Sari Widha Kusumaningdyah Yeni Sumantri