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INDONESIA
Indonesian Green Technology Journal
Published by Universitas Brawijaya
ISSN : 23554010     EISSN : 23381787     DOI : https://igtj.ub.ac.id/index.php/igtj/
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Engineering Other
The Indonesian Green Technology Journal (IGTJ) is an international journal that publishes recent developments and emerging issues in both conceptual and experimental aspects of green and renewable technology. The Indonesian Green Technology Journal (IGTJ) publishes research results in the theoretical and experimental aspects of green science, engineering, technology, and medicine. Studies published in this journal include; Biomaterials, Green water management, Green energy development and management, Sustainable waste management, Green biotechnology, Green building and architecture, Clean production technology, Global warming technology, and Green building and architecture. This journal also emphasises the significance of green technology development, implementation, challenge, opportunity, and acceptance from an Indonesian perspective. IGTJ is publicly open for publication of review papers, short communication, and research papers. Since 2024, this journal has become an international journal and uses English for every paper that will be published.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 120 Documents
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Performance Analysis of Waste Glass Shredder Machine: Real Effort to Process Construction Materials Waste Abdullah, Sirajuddin Haji; De Side, Gagassage Nanaluih; Amuddin, Amuddin; Priyati, Asih; Fuadi, Mi'raj
Indonesian Green Technology Journal Vol. 12 No. 2 (2023)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2023.012.02.04

Abstract

Glass waste is one of the residual waste construction materials that can be recycled by turning its particles into smaller sizes so that the processing of glass waste will be easier, especially in terms of safety. This study aims to test the performance and performance of glass waste crushing machines, determine the rotation speed of the shredder gear in glass waste crushing machines and to determine the production efficiency of glass waste crushing machines. This research uses experimental methods with field experiments, by analyzing the machine directly. The parameters observed were testing the feasibility of tool performance by looking at the results of glass waste shredding, the production efficiency of the glass waste shredder and knowing the rotation speed of the crushing gear in the glass waste shredder. The results showed that glass waste with a thickness of 0.2 cm that had been crushed obtained an average value of 1405.2 grams and for a thickness of 0.5 cm, 1376.2 grams. At the speed of rotation of the glass waste crusher gear, the average value obtained by glass with a thickness of 0.2 cm is more than glass with a thickness of 0.5 cm, namely 16.98 rpm while glass with a thickness of 0.5 cm is 13.82 cm. The results of the calculation of the production efficiency of the glass waste shredder with a thickness of 0.2 cm have the highest result at the 5th repetition of glass entry, that is 94.80% and the lowest at the 1st repetition is 92.53%, and for glass with a thickness of 0.5 cm the highest result is obtained at the 2nd repetition of glass entry, that is 92.66% and the lowest result at the 1st repetition is 89.66%. Keywords: glass shredder machine, glass waste, waste processing, performance test, waste materials
Precipitation of Zn(II)-Pyrazinamide Complex from Ethanol Solution as an Antibacterial Candidate based on Transitional Metal Complex Compounds Adiba, Naila Azmi; Purwonugroho, Danar; Prananto, Yuniar Ponco
Indonesian Green Technology Journal Vol. 13 No. 1 (2024)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2024.013.01.01

Abstract

The Zn(II)-pyrazinamide complex compound is currently being developed as an antibacterial agent. To obtain the Zn(II)-pyrazinamide complex effectively, many factors must be considered, including the type of zinc(II) salt and the mole ratio. The aim of this research is to examine the influence of the type of zinc(II) salt and the mole ratio in the precipitation of the Zn(II)-pyrazinamide complex to obtain efficient results. The Zn(II)-pyrazinamide complex was synthesized using a direct mixing technique in ethanol solution with metal:ligand mole ratios of 1:2 and 1:4 and with types of zinc(II) salts, namely acetate, chloride, and nitrate. Based on the research results, the anion of the zinc(II) salt leads to the precipitation of the complex while the metal:ligand mole ratio leads to the resulting yield. An efficient synthesis condition to obtain the Zn(II)-pyrazinamide complex is to use ZnCl2 salt and a mole ratio of 1:4. Experimental data also shows that the Zn(II)-pyrazinamide complex precipitate melts at a temperature of 234oC, while infrared spectroscopy analysis shows the characteristic carbonyl and amide groups of pyrazinamide. Meanwhile, powder-XRD analysis showed that the resulting complex had a different structure than that previously reported.
Design and Construction of Miniature Biogas Power Plant in Balahu Village by Utilizing Cow Livestock Waste Asri, Muhammad; Hulukati, Stephan Adriansyah
Indonesian Green Technology Journal Vol. 12 No. 2 (2023)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2023.012.02.05

Abstract

Indonesia is a country with the largest palm oil industry in the world. Palm oil mill effluent is oily and non-toxic liquid waste, the result of palm oil processing. Although non-toxic, the effluent can cause environmental disasters because it is dumped in open ponds and releases large amounts of methane gas and other harmful gases that cause greenhouse gas emissions. This research was conducted with experimental research methods. The purpose of this study, namely to obtain an explanation of the problem studied in the explanation in the form of a causal relationship between the dependent variable and the independent variable that affects the occurrence of the problem. In the biogas turbine section, it is made by adjusting the working principle of water turbines in general. The biogas storage section uses an existing biogas system and then the gas is channeled through a inch pipe. After that the gas flows so that it rotates the turbine and the turbine rotates then produces electricity and is accommodated in a 12 Volt battery so that it can be used at night without having to turn on the turbine. stored on the battery when the battery is full will be turned off by the control system in the device design so that it is effective and efficient.
Community Participation in the Development of Sustainable Agriculture Based on Coffee Plantations in Kalibaru District, Banyuwangi Pribadi, Titanio; Mukhoyyaroh, Naila Izzatul; Naim, Abu; Bintoro, Wahyu A.; Setiawan, Sigit Edy
Indonesian Green Technology Journal Vol. 13 No. 1 (2024)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2024.013.01.02

Abstract

Coffee plants are a factor in Indonesia's economic growth which implements an agroforestry system. Agroforestry systems and management emphasize effective agricultural systems and consider conservation of natural resources. This research aims to analyze the supporting factors for sustainable agriculture based on coffee plantations, community perceptions in developing sustainable agriculture, and community strategies for sustainable agricultural development in Kalibaru District. The research method uses quantitaive descriptive research with collection methods in the form of observation, inventory and interviews. The data analysis method is in the form of likert scale analysis and SWOT analysis. The study suggests that some communities have already understood the concept of agroforestry with a perception index found under about > 50% of the value-rating category. It deals with the influential aspects of sustainable agricultural development strategies is the natural resource of coffee plantations and community knowledge of sustainable agriculture. However, coffee community knowledge resources with a 67% education percentage in senior high schools, so that knowledge about sustainable agriculture requires moderate help and education for communities. Strategies that can be used to improve sustainable agriculture in Kalibaru District are to increase assistance and education to the community about environmentally friendly sustainable agriculture and the preservation of the agroforestry system in coffee plantations in Kalibaru District.
Green Packaging in Green Supply Chain Management : A Literature Review Saputra, Ihfadz Lucky Alfa; Yoel Santo Andrianus Sormin; Heru Prastawa; Handayani, Naniek Utami
Indonesian Green Technology Journal Vol. 14 No. 1 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.01.01

Abstract

Currently, environmental issues are a widely discussed topic in the industrial world, particularly within the supply chain process. This is closely linked to the escalating environmental degradation resulting from industrial activities. Today, a healthy environment is considered an invaluable asset, and the responsibility for its preservation lies with all of us [1]. Green supply chain management (GSCM) is an approach adopted by companies to integrate environmentally friendly practices into their supply chains [2]. GSCM aims to mitigate the negative environmental impact of business operations while maintaining operational efficiency and sustainability. One crucial aspect of GSCM is the adoption of green packaging. Green packaging not only involves using environmentally friendly materials but also entails raising awareness about the necessity for a shift in packaging practices (Prakash and Pathak, 2017). This study aims to systematically review the existing literature on green packaging. The primary focus of this research is to identify trends, findings, challenges, and the latest innovations in environmentally friendly packaging and to analyze their sustainability implications.
Antibacterial Biodegradable Films from Papaya Peel Flour Enhanced with Morinda citrifolia Extract for Sustainable Packaging M, Ahmad Gibran; Widya Dwi Rukmi Putri; Rikza Bilqis Zakia; Zeeges Mollic; Kristiadi, Andreas; Shofiatun Nisa’ Tsabitah
Indonesian Green Technology Journal Vol. 14 No. 1 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.01.05

Abstract

Biodegradable film is a type of plastic that can be degraded easily by environmental microorganisms because it is made from natural polymer materials. In this study, experiments were conducted using papaya peel and noni fruit extract. Papaya fruit is utilized because the high production of papaya fruit leads to high papaya peel waste, which is currently not optimally utilized. Meanwhile, noni fruit is utilized as an antibacterial agent for biodegradable film because it contains anthraquinone, alkaloid, flavonoid, acubin, and alizarin. biodegradable film is expected to be an alternative packaging that can protect food ingredients from bacteria and become environmentally friendly packaging. The purpose of this study is to determine the effectiveness of noni fruit extract on antibacterial activity in biodegradable films and to find the right formulation for making biodegradable films from papaya skin added with noni fruit extract. The tests conducted in this study were mechanical test, solubility test, thickness, and water content, visual quality test, antibacterial activity test, and biodegradation test. biodegradable film showed varying tensile strength and elongation test results. The addition of noni extract was also effective in inhibiting bacterial growth. In addition, the samples showed significant absorbency and weight loss in the biodegradation test, signaling the potential to degrade.
Bioethanol Production from Oil Palm Empty Fruit Bunches Using R5I3 Isolate Immobilized on Sodium Alginate Beads Ida Bagus Wayan, Gunam; Yanti Sinurat, Dame; Wartini, Ni Made
Indonesian Green Technology Journal Vol. 14 No. 1 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.01.04

Abstract

Indonesia is the world's largest palm oil producer, contributing 59% of the total global production. The decreasing availability of fossil fuels contrasts with the increasing energy demand due to population growth. The development of bioethanol as an alternative energy source is expected to replace fossil fuels while contributing to environmental sustainability. Oil palm empty fruit bunches (OPEFB) are abundant industrial waste which is a potential raw material for bioethanol production. This study aims to analyze two different R5I3 cell treatments and fermentation time on bioethanol production from OPEFB and to determine the type of cell and fermentation time that produces the highest bioethanol content. The experiment was conducted using a Randomized Block Design with two factors: cell treatment types (free and immobilized cells) and fermentation time (24, 48, 72, and 96 hours). The results showed that cell treatment types significantly affected reducing sugar content, pH, total dissolved solids, and ethanol concentration. Fermentation time influenced reducing sugar content, total dissolved solids, and ethanol concentration but had no significant effect on pH. The treatment of immobilized R5I3 cells with a fermentation time of 72 hours produced bioethanol with the highest ethanol content of 1.02% (v/v).
Correlation Between the Determining Factors of Bird’s Eye Chili Farmers' Income in Malang Regency to Encourage National Food Security Maulana, Feri Fahrian; Wahyudi, Adip; Wibowo, Heny Agung; Prista, Dynda; Indraningrum Shrestha, Maria Emerita
Indonesian Green Technology Journal Vol. 14 No. 1 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.01.02

Abstract

National food security is highly dependent on the sustainability of the agricultural sector, where commodities such as bird’s eye chili are very important. In Malang Regency, especially in Wiyurejo Village, the income of bird’s eye chili farmers is strongly influenced by changes in crop yields caused by various internal and external factors, including climate change, agricultural practices, and limited capital resources. Despite the expansion of chili cultivation, farmers' incomes often do not show a substantial increase. This study aims to identify and analyze the determining factors that affect the income of bird’s eye chili farmers in Wiyurejo Village, with an emphasis on land area, capital, and production output. The methodology used is quantitative descriptive, using a multiple linear regression approach, and involving 98 randomly selected participants. The results of the study indicate that although land area is positively correlated with income, the effect is not statistically significant. Capital does not have a substantial effect on income, while production output has a very beneficial effect. The coefficient of determination is 78.1%, indicating that increased production output is an important determining factor for farmers' income and thus contributes to national food security. Therefore, increasing production efficiency can be the key to improving farmers' welfare and supporting national food security
Eco-Friendly Farming: The Role of Livestock Waste Processing in Organic Fertilizer Production in Lempake, Samarinda Aprylasari, Dede; Indana, Khoiru; Wibowo, Ari; Azizah, Siti
Indonesian Green Technology Journal Vol. 14 No. 1 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.01.03

Abstract

Sustainable agriculture is one solution to address global challenges such as climate change and environmental degradation. A critical aspect of sustainable agriculture is managing organic waste, especially livestock waste, which is often overlooked despite its great potential as a resource. In Lempake, Samarinda, the livestock sector produces quite significant livestock waste, but the management of this waste is still limited. This study aims to optimize the processing of livestock waste into environmentally friendly organic fertilizer and explore the obstacles and solutions in processing this waste. The survey results show that livestock waste such as cow, goat, and poultry manure can be converted into quality organic fertilizer by composting and using additional materials such as straw, leaves, and decomposer microorganisms (EM4). The resulting organic fertilizer can increase soil fertility, improve soil structure, and reduce dependence on synthetic chemical fertilizers. The main obstacles are livestock farmers' lack of knowledge and skills, limited technology and infrastructure, and low environmental awareness. The proposed solutions include training for livestock farmers, provision of technology and infrastructure, and increasing environmental awareness. This research is expected to contribute to sustainable agriculture and ecological conservation and become a model for other regions. Keywords: Organic fertilizer, Livestock manure waste, Sustainable agriculture
Recovery Potential Study of Waste Containing Carbohydrate Starch as an Alternative Raw Material of Bioethanol in Hospital Prasetiyo, Bagus Dadang; Sholihah, Qomariyatus
Indonesian Green Technology Journal Vol. 13 No. 2 (2024)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2024.013.02.01

Abstract

The aim of the study is to identify waste to assess the potential recovery of hospitalized rice waste as an alternative raw material source of bioethanol. Values are calculated based on the alcoholic fermentation and distillation process, which was measured by using Alcohol Meters and Cost-Benefit Analysis (CBA) computation. The methodological steps used begin with a study idea, which includes a literature review, a waste flow system involving carbohydrate starch, and determining the distribution of characteristics of waste containing carbohydrate starch. The results were then followed up with an initial evaluation of the potential through interviews and questionnaires. After the initial evaluation, data have been collected, and further data processing will be carried out using a structured survey of rice waste at the sources of production. The management of existing rice waste will also be evaluated. Thus, data on the generation, characteristics, and composition of rice waste were obtained through sampling. Data analysis was performed using statistical tests and laboratory tests, as well as the calculation of Cost-Benefit Analysis. The average amount of rice waste hospitalized is 69.34 kg/day, and the average amount of ethanol produced through the fermentation and distillation process of hospitalized rice waste is 80%. Using IRR (Internal Rate of Return) and NPV (Net Present Value in CBA calculations at each of the profits/benefits. Rice waste has the potential to be recovered as an alternative source of raw material for bioethanol, yielding a value that exceeds its cost. IRR of rice waste from Hospital “X” is 21.54%.

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