Optimalisasi Pemanfaatan Limbah Ternak Sebagai Pupuk Organik Dan Biogas di desa Branjang
Abstract
Abstract: The cattle farming community in Branjang Village, Semarang Regency, faces a primary issue of livestock waste accumulation that has not been optimally managed. This condition results in environmental pollution, unpleasant odors, and increased dependency on chemical fertilizers and liquefied petroleum gas (LPG). The main constraints are limited knowledge, skills, and access to waste processing technology. This community service program aims to optimize the utilization of cattle waste as organic fertilizer and alternative energy through the implementation of the Sustainability Techno-Integrated Agrofarm model. The method employed involves a participatory approach through extension, training, consultation, and the application of the appropriate MetaCow technology as a household-scale biogas digester. Program success was evaluated using pre-test and post-test instruments, analyzed by n-gain and paired sample t-test to assess improvements in participants’ knowledge and skills. The results demonstrate a significant enhancement in the community’s ability to process waste into economically valuable organic fertilizer and biogas, while also strengthening the institutional capacity of Sanggar Tani as a center for sustainable agricultural technology learning. This program contributes to the achievement of the Sustainable Development Goals (SDGs), particularly in clean energy, sustainable production, and environmental preservation.
Keywords: biogas; digester; livestock waste; organic fertilizer; sustainable agriculture
Abstrak: Masyarakat peternak sapi di Desa Branjang, Kabupaten Semarang menghadapi permasalahan utama yakni penumpukan limbah ternak yang belum dikelola secara optimal. Hal ini berdampak pada pencemaran lingkungan, munculnya bau tidak sedap, serta meningkatnya ketergantungan akan pupuk kimia serta gas elpiji. Kendala atama adalah karena keterbatasan pengetahuan, keterampilan, serta akses terhadap teknologi pengolahan limbah. Program pengabdian masyarakat ini bertujuan mengoptimalkan pemanfaatan limbah ternak sapi sebagai pupuk organik dan energi alternatif melalui penerapan model Sustainability Techno-Integrated Agrofarm. Metode yang digunakan adalah pendekatan partisipatif melalui penyuluhan, pelatihan, konsultasi, dan penerapan teknologi tepat guna MetaCow sebagai digester biogas rumah tangga, serta evaluasi keberhasilan melalui pre-test dan post-test yang dianalisis melalui uji n-gain dan paired sample t-test untuk menilai peningkatan tingkat pemahaman serta keterampilan peserta. Hasil kegiatan menunjukkan adanya peningkatan signifikan kemampuan masyarakat dalam mengolah limbah menjadi pupuk organik dan biogas yang bernilai ekonomis serta memperkuat kelembagaan Sanggar Tani sebagai pusat pembelajaran teknologi pertanian berkelanjutan. Program ini berkontribusi pada tercapainya tujuan pembangunan berkelanjutan (SDGs) khususnya energi bersih, produksi berkelanjutan, dan pelestarian lingkungan.
Kata kunci: biogas; digester; limbah ternak; pupuk organik; pertanian berkelanjutan
References
Ahlberg-Eliasson, K., Westerholm, M., Isaksson, S., & Schnürer, A. (2021). Anaerobic Digestion of Animal Manure and Influence of Organic Loading Rate and Temperature on Process Performance, Microbiology, and Methane Emission From Digestates. Frontiers in Energy Research, 9(December), 1–16. https://doi.org/10.3389/fenrg.2021.740314
Indrayani, N., Jennatan, A. F., Lestari, E. D., Ardelia, A., Alfina, S., Amanda, A., Sofia, S., Ulfa, S., Rahayu, T., Azizah, N. A., Rahmah, M., Rofahati, M., Attok, M. K., Jl, A., No, M., Jember, K., & Indonesia, J. T. (2025). Pemanfaatan Limbah Ternak sebagai Pupuk Organik untuk Membantu Meminimalisir Biaya Operasional Tanam di Desa Mrawan Kecamatan Tapen Kabupaten Bondowoso Utilization of Livestock Waste as Organic Fertilizer to Help Minimize Planting Operational Costs in Mra.
Jameel, M. K., Mustafa, M. A., Ahmed, H. S., Mohammed, A. jassim, Ghazy, H., Shakir, M. N., Lawas, A. M., Mohammed, S. khudhur, Idan, A. H., Mahmoud, Z. H., Sayadi, H., & Kianfar, E. (2024). Biogas: Production, properties, applications, economic and challenges: A review. Results in Chemistry, 7(March), 101549. https://doi.org/10.1016/j.rechem.2024.101549
Kadam, R., Jo, S., Lee, J., Khanthong, K., Jang, H., & Park, J. (2024). A Review on the Anaerobic Co-Digestion of Livestock Manures in the Context of Sustainable Waste Management. Energies, 17(3). https://doi.org/10.3390/en17030546
Khairi, F., Maharani, C. P., & Aditya, F. A. (2025). Sustainable Livestock Management: Strategies for Enhancing Productivity While Reducing Environmental Impact. The Journal of Academic Science, 2(1), 382–391. https://doi.org/10.59613/efybvy75
Nair, L. G., Agrawal, K., & Verma, P. (2022). An overview of sustainable approaches for bioenergy production from agro-industrial wastes. Energy Nexus, 6(May), 100086. https://doi.org/10.1016/j.nexus.2022.100086
Setyorini, D. A. (2019). Pengaruh Berbagai Kotoran Ternak Terhadap Proses Pengomposan dan Kualitas Kompos dari Sabut Kelapa.
Wardana, L. A., Lukman, N., Mukmin, M., Sahbandi, M., Bakti, M. S., Amalia, D. W., Wulandari, N. P. A., Sari, D. A., & Nababan, C. S. (2021). Pemanfaatan Limbah Organik (Kotoran Sapi) Menjadi Biogas dan Pupuk Kompos. Jurnal Pengabdian Magister Pendidikan IPA, 4(1). https://doi.org/10.29303/jpmpi.v4i1.615
Yudi Ariyanto, & Teguh Soedarto. (2025). Benefits of Biogas as a Renewable Energy Source in Supporting Sustainable Development Goals (SDGs) in the KPSP Setia Kawan Region, Pasuruan, Indonesia. Agricultural Science, 8(2), 170–198. https://doi.org/10.55173/agriscience.v8i2.159
