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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 5 Documents
 1 
Search results for , issue "Vol. 14 No. 2 (2025)" : 5 Documents clear
Effect of Soaking Time Using Petroleum Ether on the Feather Morphology of Native Chicken Darjito, Darjito; Tjahjanto, Rachmat T.; Mutrofin, Siti; Sinambela, Lopian S. P.
Indonesian Green Technology Journal Vol. 14 No. 2 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.02.01

Abstract

The process of extracting keratin from chicken feathers needs to be treated initially to remove some of the compounds that can reduce the extraction results. Petroleum ether can serve as a degreaser in the initial process of washing. This study focuses on the effect of the long time of soaking the feathers of free-range chickens with petroleum ether on the soxhlet process with different time variations on the change in mass and morphological changes of the feathers of free-range chickens. In this study, several stages were carried out, namely (1) Washing chicken feathers using liquid detergent, (2) Washing chicken feathers using acetone, and (3) Washing chicken feathers using petroleum ether with varying soaking times. The results of the 3 stages of washing the feathers of free-range chickens can change the morphology of chicken feathers from rough black to bright gray with soft texture and the influence of the soaking time using petroleum ether is that the longer the soaking time, the greater the shrinkage value of the chicken feathers studied.
The The Effect of Distance of Sugar Industry Pollutants on Vegetation and Water Quality of Sukun River Azizah, Nailil Wafiq; Prasetyo, Hamdani Dwi; Tito, Sama' Iradat
Indonesian Green Technology Journal Vol. 14 No. 2 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.02.02

Abstract

Industrial activities potentialy cause river water pollution which can have a negative impact on riparian ecosystems. This study aims to analyze the effect of distance of sugar industry pollutant sources on water quality and riparian vegetation diversity in Sukun River, Malang Regency. Sampling was conducted at three stations located 2 km from each other. Vegetation analysis was conducted using the Index of Important Value (INP), Shannon-Wiener Diversity Index, and Index of Riparian Quality (QBR). The results showed that the farther away from the pollutant source, the better the water quality and riparian vegetation. The highest DO was found at the farthest station (6.8 mg/L), while the lowest was at the nearest station (1.17 mg/L). The Shannon-Wiener diversity index and QBR also increased with distance from the pollutant source. Correlation analysis showed a negative relationship between pH and riparian vegetation quality, and a positive relationship between DO and TDS and vegetation diversity. Overall, this study confirms that industrial pollution has a significant impact on river ecosystems. Therefore, effective environmental management strategies, such as rehabilitation of riparian areas is needed to maintain the river ecosystem and support the biodiversity preservation and ecological balance along the Sukun River.
Thermosiphon Monitoring Reel for the Fair-Trade Sustainable Hatcheries Valdès, Laurent-Charles
Indonesian Green Technology Journal Vol. 14 No. 2 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.02.03

Abstract

Hatcheries designed to be fair-trade, sustainable, well adapted to sunny countries and operating mainly through thermosiphon flows generated by solar radiation or radiative emission at night, were recently the subject of a theoretical study. The dimensionings of their incubator, solar collector, night and heat discharge radiators, water reserve and chassis for the climatic conditions in Cameroon and Indonesia were deduced from this. However, some secondary but essential functional aspects of the implementation of these hatcheries were not addressed. To facilitate their use and operation, a turbine is used here to check whether the thermosiphon flows take place and what is their intensity. The use of the thermosiphon flow control turbines is proven to give important advantages. Firstly, this design support a more eco-friendly environment by being energy neutral. Secondly, this design uses simple, cheap, and long-lasting materials. As a result, this fair-trade sustainable hatchery represents the environmentally friendly and affordable solution, especially for third world countries such as Cameroon and Indonesia. This will help to realize sustainable development goals, especially SDG 7 (clean and affordable energy).
Natural-Based Sustainable Filter Media for Ammonia and TSS Removal in Small-Scale Aquaculture Pramudia, Zulkisam; Kurniawan, Andi; Anjasmara, Aang Setyawan; Anugerah, Putri; Moehammad, Khibar Syiar
Indonesian Green Technology Journal Vol. 14 No. 2 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.02.04

Abstract

Water quality degradation remains a critical challenge in small-scale aquaculture, particularly due to the accumulation of suspended solids and ammonia from feed waste and metabolic excretion. This study aimed to evaluate the efficiency of a simple, eco-friendly filtration system using natural materials—sand, zeolite, pumice, and coconut fiber—in removing Total Suspended Solids (TSS) and ammonia (NH?–N). Four treatments were tested over a five-day period: P1 (sand and zeolite), P2 (pumice and coconut fiber), P3 (all four materials), and a control (no filter media). Each unit was constructed using low-cost containers and operated under continuous flow conditions. Results showed that P3 consistently achieved the highest removal efficiency, reducing TSS by 82.5% and ammonia by 83.3%. ANOVA and Tukey HSD tests confirmed significant differences (p < 0.05) among treatments. The combination of mechanical, chemical, and bioactive media in P3 enhanced both physical filtration and nitrogen removal. These findings support the application of natural-based filter media as a sustainable, low-cost solution for improving water quality in decentralized aquaculture systems, especially in resource-limited settings
Woodfuel Production and its Implication in Driving Deforestation in the Drylands of Ethiopia Girma, Gonche A.; Shimeles, Abebaw
Indonesian Green Technology Journal Vol. 14 No. 2 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.02.05

Abstract

The derived motives of people in the drylands while performing woodfuel production are primarily to support their livelihoods and source of energy in dryland areas. Besides to its significant roles, it has also undoubted multiple negative effects. However, there is little information documented that would help policy and development interventionists to mitigate those effects. Therefore, this study assesses the deforestation and environmental implications of woodfuel production activity. The result shows that dependence on woodfuel (charcoal and firewood) income increases markedly from farming to pastoral groups, becoming the dominant income source for both agro-pastoral and pastoral households. This pattern underscores the critical role of woodfuel in rural livelihoods, especially where agricultural productivity is low. Poverty, unemployment, and the requirement for energy are main reasons of woodfuel dependency. However, woodfuel producers do not create their own plantations for the extraction of woodfuel. They merely rely on the forest resources to meet their requirements. Deforestation, soil loss, and loss of biodiversity were some of the environmental problems that arose from woodfuel production. The study result recommended a policy direction to support the adoption of sustainable woodfuel production practices such as plantations, assisting natural regeneration based on the local context of dryland areas

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