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All Journal E-Dimas: Jurnal Pengabdian kepada Masyarakat Journal of Green Science and Technology
Chamidy, Harita Nurwahyu
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Social Sciences Transportation

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Penyediaan Alat Penghancur Sampah Organik agar Maggot Lebih Maksimal Mengolah Sampah Menjadi Pupuk Kompos Chamidy, Harita Nurwahyu; Astor, Yackob; Keryanti, Keryanti; Min, Joe Lian; Djatnika, Tjetjep; Pudin, Apip; Amalia, Dewi
E-Dimas: Jurnal Pengabdian kepada Masyarakat Vol 14, No 3 (2023): E-DIMAS
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/e-dimas.v14i3.12884

Abstract

Longsornya Tempat Pembuangan Akhir (TPA) Sarimukti membuat tumpukan sampah di Tempat Pembuangan Sampah (TPS) semakin menggunung dan munculnya TPS liar yang dapat mencemari lingkungan. Alternatif pengolahan sampah organik yaitu dengan memanfaatkan maggot. Jika tersedia sarana pengolahan sampah yang lengkap dan budidaya Maggot dilakukan secara benar, maka berpotensi dapat mengatasi permasalahan sampah dan menghasilkan keuntungan. Mitra telah mencoba melakukan pengolahan sampah organik menggunakan Maggot. Namun, masih ada permasalahan yang terjadi pada Mitra Pengabdian kepada Masyarakat (PkM) yaitu tidak adanya alat penghancur sampah sehingga tidak dapat diolah maksimal oleh Maggot. Kegiatan PkM ini yaitu melakukan sosialisasi mengajak warga untuk memilah sampah organik dan anorganik di rumah masing-masing, kemudian mendistribusikan sampah ke lokasi pengolahan, dan pembuatan alat penghancur sampah organik. Manfaat kegiatan PkM bagi Mitra adalah memberikan kontribusi berupa teknologi peralatan penghancur sampah dan bertambah banyak masyarakat yang berkontribusi dalam pengelolaan ini sebagai solusi pengolahan sampah yang efektif, efisien, murah, dan dapat memberikan keuntungan bersama.
Design Of a Feeding System with a Capacity Of 3 Tons/Hour at the Npk Plant to Improve Feeding Efficiency and Automation Tsuroyyaa, Zakiyyah; Christianti, Christianti; Trirahayu, Dhyna Analyes; Chamidy, Harita Nurwahyu
Journal of Green Science and Technology Vol 9 No 3 (2025): Journal of Green Science and Technology Vol. 9 No. 3 December 2025 Special Editio
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i3.10549

Abstract

An NPK plant is a facility that produces NPK fertilizer through a manufacturing process specifically designed to create fertilizer with a special formulation. However, in the production process, the feeding of raw materials is still done manually, resulting in low productivity and high operational costs. Based on production performance tests conducted on September 15, 2024, the manual system only achieved an average of 1.34 tons/hour, or 47% of the production target of 3 tons/hour. Therefore, a transportation system is needed to transport the materials, given the limitations of human labor capacity in terms of material handling and employee safety. This study aims to design an automatic feeding system to maximize production capacity up to 3 tons per hour. The system design begins with analyzing losses due to low productivity of the manual system, analyzing factory requirements, designing the main components of the feeding system, such as the hopper, weigher, and conveyor belt, equipped with an on-off control-based system to ensure consistent raw material flow. Technical design was carried out through visualization using AutoCAD and Visio software, solid flow simulation using Altair EDEM software, and economic feasibility analysis by calculating the Return on Investment (ROI) and Payback Period (POT). The calculation results show that this feeding system has a ROI of 40.8% and a POT of 2.05 years, indicating that the designed system is economically viable for implementation.
Co-Authors Christianti, Christianti Dewi Amalia Djatnika, Tjetjep Keryanti, Keryanti Min, Joe Lian PUDIN, APIP Trirahayu, Dhyna Analyes Tsuroyyaa, Zakiyyah Yackob Astor