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All Journal KACANEGARA Jurnal Pengabdian pada Masyarakat Industrial and Domestic Waste Management
Djirimu, Hanum Salsabila
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Education Engineering Environmental Science

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Optimization of Manufacturing-Remanufacturing Model in Circular Supply Chain Considering Warehouse Capacity Constraints by Using Chinese Pangolin Optimizer Algorithm Utama, Dana Marsetiya; Djirimu, Hanum Salsabila
Industrial and Domestic Waste Management Volume 5 - Issue 2 - 2025
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/idwm.v5i2.752

Abstract

This research developed an optimization model within a circular supply chain framework incorporating factors such as carbon emissions, social sustainability, and warehouse capacity limitations. The model adopted a modified Economic Order Quantity (EOQ) approach, with a comprehensive cost assessment that included production cost, remanufacturing cost, storage cost, disposal cost, and penalty cost for emissions, all formulated within a Mixed Integer Nonlinear Programming (MINLP) structure. To address the complex nonlinear problem, the metaheuristic Chinese Pangolin Optimizer (CPO) algorithm was applied, as it effectively balanced solution exploration and exploitation. The simulation results indicated the optimal combination of production lot size, remanufacturing, and the share of reusable goods, achieving the minimum total system cost. The sensitivity analysis showed the significant influence of production and remanufacturing costs, emissions, and the rate of product returns on system efficiency. Overall, this research demonstrated more credible, cost-efficient, and sustainable inventory control approaches in a circular supply chain by considering warehouse constraints and applying the CPO.
Pemberdayaan masyarakat dalam produksi briket dari limbah kulit jeruk di Kabupaten Malang Diami, Berlinda Amalia; Salsabilah, Aisyah Leilani; Salsabila, Nadhea Aurelie; Djirimu, Hanum Salsabila; Utama, Dana Marsetiya; Rosiani, Tyas Yuli
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 7, No 4 (2024): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v7i4.2502

Abstract

Tingginya jumlah limbah kulit jeruk yang dihasilkan oleh perkebunan jeruk di Kabupaten Malang menimbulkan masalah lingkungan yang signifikan, sementara kebutuhan akan bahan bakar alternatif seperti briket semakin meningkat. Hingga saat ini, limbah kulit jeruk belum dimanfaatkan secara optimal, menciptakan peluang ekonomi yang terabaikan dan memperburuk masalah lingkungan. Program pengabdian ini bertujuan untuk mengatasi permasalahan tersebut melalui pemberdayaan masyarakat setempat dengan memberikan pelatihan mengolah limbah kulit jeruk menjadi briket. Pendekatan partisipatif digunakan, di mana melibatkan masyarakat dalam setiap tahapan produksi briket, termasuk koordinasi dengan mitra, penilaian awal pengetahuan, sosialisasi, pelatihan, pendampingan, serta evaluasi keberhasilan dan keberlanjutan program. Evaluasi dilakukan melalui pre-test dan post-test dengan analisa statistik menggunakan uji Wilcoxon untuk mengukur peningkatan pengetahuan dan keterampilan. Hasilnya menunjukkan peningkatan signifikan dalam kemampuan masyarakat mengolah limbah menjadi briket berkualitas, serta peningkatan kesadaran lingkungan dan potensi ekonomi dari limbah. Pemberdayaan masyarakat melalui pengelolaan limbah terbukti efektif dalam mengatasi masalah lingkungan dan meningkatkan kesejahteraan ekonomi.
Co-Authors Dana Marsetya Utama Diami, Berlinda Amalia Salsabila, Nadhea Aurelie Salsabilah, Aisyah Leilani Tyas Yuli Rosiani