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All Journal Jurnal Vokasi Journal of Agriculture (JoA) Serambi Engineering
Gunawan Gunawan
Electrical Engineering Department, Politeknik Negeri Lhokseumawe, Aceh, Indonesia
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Social Sciences

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ENERGY AND CLEAN WATER POTENTIAL IN A CLOSED SYSTEM SUGAR FACTORY Gunawan Gunawan
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2656

Abstract

The production and demand for sugar in Indonesia increases every year. This condition has the potential to make the sugar factory a model of a closed system sugar factory, because the increase in white crystal sugar (GKP) production will increase the by-products (bagasse, filter cake, molasses and wáter). The closed system sugar factory is a GKP factory integrated with the power generation and clean water treatment industries. In this model, the raw material for sugar cane is not only used as sugar but also as a source of renewable energy and clean water. The purpose of this study was to analyze the potential utilization of by-products in the form of bagasse, filter cake, molasses and water in white crystal sugar factories. The research method is mass balance using input, process and output data at the sugar factory and secondary data. The results of this study have provided information about the potential for energy and water in closed system sugar production. The energy potential for power generation from blotong is 1 730.2 MJ/ton GKP, molasses is 5 939.0 MJ/ton GKP. The energy consumption at the power plant from blotong is 56.1 MJ/ton GKP, molasses is 408 MJ/ton GKP. The potential for clean water from water treatment for 1 ton of GKP is 4.6 tons, equivalent to 0.4 tons of clean water per ton of sugarcane.
PENERAPAN KONSEP GREEN ECONOMY UNTUK MENINGKATKAN NILAI EKONOMI TERNAK SAPI DESA SEKRAK KIRI ACEH TAMIANG Gunawan Gunawan; Rahmawati Rahmawati; Amir D
Jurnal Vokasi Vol 8, No 1 (2024): Jurnal Vokasi (Maret)
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/vokasi.v8i1.4646

Abstract

Skema kegiatan ini adalah Pemberdayaan Berbasis Masyarakat dengan ruang lingkup Pemberdayaan Kemitraan Masyarakat (PKM). Mitra peternak sapi Ibu Asmawati merupakan bagian dari masyarakat produktif secara ekonomi. Permasalahan prioritas adalah penanganan limbah kotoran sapi yang belum dimanfaatkan hanya diletakkan begitu saja di sekitar kandang sapi berdampak negatif terhadap lingkungan. Kegiatan ini memiliki urgensi yang penting dalam menjaga keseimbangan lingkungan dan meningkatkan kesejahteraan masyarakat. Tujuan kegiatan PKM untuk menerapkan konsep green economy usaha ternak sapi Ibu Asmawati dengan memanfaatkan potensi kotoran sapi menjadi biogas dan pupuk sehingga mandiri secara ekonomi dan sosial. Dalam kegiatan PKM ini dilakukan sosialisasi kepada mitra mengenai konsep green economy, cara membuat biogas dan pakan biomass yang ramah lingkungan serta menghitung harga pokok produk (HPP). Luaran yang dicapai adalah peningkatan keberdayaan mitra meliputi bertambahnya aset mitra, peningkatan pengetahuan dan keterampilan mitra tentang konsep green economy, penggunaan dan perawatan digester biogas, membuat silase dari biomass untuk pakan ternak sapi, dan menghitung HPP. Rata-rata peningkatan pengetahuan dan keterampilan mitra dalam angka N-Gain score sebesar 90%, 93%, 94% dan 83%. Penambahan aset digester biogas kapasitas 5000 liter terpasang di lokasi peternakan Ibu Asmawati, silase sebanyak 25 kg, dan simulasi perhitungan harga pokok produk. Potensi dari digester biogas menghasilkan biogas 1,62 m3/hari setara dengan 0,75 kg LPG/hari, pupuk cair organik 150 liter/hari dan pupuk padat organik 9 kg/hari. Penerapan konsep green economy usaha ternak sapi menghasilkan sampak positif secara ekonomi, lingkungan dan sosial.
Manfaat Ekonomi Dan Kredit Karbon Pabrik Gula Sistem Tertutup Berbasis LCA Gunawan; Rudy Syahputra; Ismaniar Isa; Darmein; Supardin
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Sugar factories (PG) can contribute to efforts to reduce greenhouse gas (GHG) emissions in accordance with the obligations of the Kyoto Protocol and the Paris Agreement. Closed PG systems have the potential to minimise waste and reuse production residues, making them a sustainable solution for reducing environmental impacts and increasing economic benefits. This study models the yield and economic benefits of closed system PG using Life Cycle Assessment (LCA). The aim of this research is to analyse the economic benefits and carbon credits of closed-system sugar production using LCA. The research methodology is descriptive, involving the calculation of carbon credits based on the Kyoto and Paris Agreements. The LCA method is used to assess carbon emissions. The use of bagasse as cogeneration fuel produces an excess of 5 GWh/milling season of electricity, which can meet the electricity needs of 6944 households during the milling season or 3472 households per year. PG X produces 667.5 million liters of clean water during the milling season, which can meet the drinking water needs of 61,805 people throughout the year.
Co-Authors Amir D Darmein Ismaniar Isa Rahmawati Rahmawati Rudy Syahputra Supardin