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All Journal AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) MPKM
Brilliantino, Akhmad Maliki
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Synthesis and Characterization of Nitrate-Based Fertilizers from Calcined Dolomite: Influence of Mass Loading and Stirring Time on Calcium and Magnesium Recovery. Brilliantino, Akhmad Maliki; Estiningtyas, Maria Florentina; Santi, Sintha Soraya; Saputro, Erwan Adi
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 10 No. 2 (2026)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v10i2.987

Abstract

This This study aims to synthesize calcium magnesium nitrate fertilizer (CaMg(NO?)?) from calcined dolomite and to evaluate the influence of dolomite mass and stirring time on the resulting calcium (Ca) and magnesium (Mg) content. Dolomite was selected as the primary raw material due to its wide availability in Indonesia and its naturally high Ca and Mg composition. The experimental procedure consisted of two main stages: thermal calcination of dolomite at 800°C for 4 hours, followed by a reaction with 100 mL of 68% nitric acid at 35°C under constant stirring at 300 rpm. The dolomite mass was varied between 5 and 25 g, while the stirring time ranged from 15 to 75 minutes. Product characterization was conducted using X-ray fluorescence (XRF) to quantify CaO and MgO contents. The results indicate that prolonged stirring enhances the dissolution of mineral components, leading to improved calcium recovery, although the effect of increasing dolomite mass does not exhibit a strictly proportional trend. The optimum condition was identified at 20 g of dolomite and 60 minutes of stirring, yielding 82.05% CaO and 0.88% MgO after normalization. The CaO content satisfies the minimum requirement specified in SNI 02-2806-1992 (?26%), whereas the MgO content remains below the threshold established by European Communities regulations (1994). Overall, the synthesized product is more appropriately categorized as a calcium-based fertilizer, given the predominance of calcium over magnesium in the final composition. These findings highlight the potential of calcined dolomite as a viable feedstock for nitrate-based fertilizer production, although further optimization is required to enhance magnesium incorporation.
Inorganic Waste Management And Ecobrick Making Training Pengelolaan Sampah Anorganik Dan Pelatihan Pembuatan Ecobrick Hidajat, Sjarief; Hilmiawan, Muhammad Teguh; Kamila, Shafa Dzikra; Nugraha, Dwiki Andreansyah; Putri, Rosalyta Rifany; Farizqi, Abdul Azis Naufal; Brilliantino, Akhmad Maliki; Rizki, Muhammad Miftahul; Rachmasari, Syafira Nur; Prasetyo, Dimas Bagus; Nurlaily, Rizka
Media Pengabdian Kepada Masyarakat ( MPKM ) Vol. 2 No. 02 (2025): Media Pengabdian Kepada Masyarakat (MPKM)
Publisher : Rey Media Grafika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66084/mpkm.v2i02.357

Abstract

Sampah sebagai isu lingkungan terbesar di Indonesia. Setiap harinya, jutaan ton sampah dihasilkan, dan sebagian besarnya tidak dikelola dengan baik. Hal ini dapat menyebabkan berbagai masalah lingkungan, seperti pencemaran air, tanah, dan udara. Sampah terdiri atas dua jenis yaitu organik dan anorganik. Tujuan dari pembahasan ini adalah untuk mengetahui cara pengelolaan sampah anorganik dan disajikan dalam bentuk produk yang lebih bermanfaat. Metode yang digunakan adalah melalui pelaksanaan sosialisasi dan edukasi ecobrick untuk memperkenalkan pembuatan ecobrick kepada warga yang di Desa Domas, Kecamatan Trowulan, Kabupaten Mojokerto. Adapun cara sosialisasi dilakukan dengan lisan dan praktek. Pelatihan pembuatan ecobrick dilakukan setelah pelaksanaan sosialisasi dan edukasi. Hasil dari pelaksanaan yang dilakukan Pengelolaan sampah anorganik menjadi ecobrick dapat mengurangi dampak negatif dari penumpukan sampah di Desa Domas. Kegiatan pengelolaan sampah yang dilakukan dengan membuat ecobrick, bisa dimanfaatkan sebagai sarana pengetahuan masyarakat tentang pengelolaan sampah yang tepat.
Co-Authors Dimas Bagus Prasetyo Erwan Adi Saputro Estiningtyas, Maria Florentina Farizqi, Abdul Azis Naufal Hidajat, Sjarief Hilmiawan, Muhammad Teguh Kamila, Shafa Dzikra Nugraha, Dwiki Andreansyah Nurlaily, Rizka Putri, Rosalyta Rifany Rachmasari, Syafira Nur Rizki, Muhammad Miftahul Sintha Soraya Santi