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All Journal JURNAL SIMETRIK Journal of Applied Sciences, Management and Engineering Technology (JASMET) Journal of Applied Community Engagement (JACE)
Desyana Ghafarunnisa
Politeknik Negeri Ketapang
Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Analysis of Water Quality in Abandoned Illegal Gold Mining Pit in Ketapang Regency, West Kalimantan, Indonesia Desyana Ghafarunnisa; Flaminggo Gingga; Syarifah Aqla
Journal of Applied Sciences, Management and Engineering Technology Vol 7, No 1 (2026)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2026.v7i1.8220

Abstract

Unlicensed Gold Mining (UGM), commonly carried out using open-pit methods, leaves behind excavation voids. Over time, these voids serve as catchment areas for rainwater and surface runoff. When not properly managed and repurposed after mining activities cease, such voids may pose negative environmental impacts, including the formation of acid mine drainage. Acidic water has the potential to contaminate surrounding surface and groundwater, threatening ecosystems and public health. Moreover, the presence of heavy metals in void water raises concern due to their long-term toxicity, thus requiring comprehensive studies to assess water quality conditions in abandoned unlicensed gold mine voids. The urgency of this research lies in addressing the environmental risks posed by voids left from unlicensed gold mining, particularly concerning water quality. Therefore, this study aims to analyze the water quality of such voids in accordance with national environmental quality standards. The research employed direct surveys, water sampling from voids, and laboratory analyses with test parameters based on Government Regulation No. 22 of 2021 on Environmental Protection and Management, Annex VI, including temperature, TDS, pH, CN⁻, and Hg. The results were compared to the National Water Quality Standards stipulated in the same regulation. This study is expected to demonstrate whether the water quality in mining voids falls below the permissible limits of environmental standards, indicating safety for the environment and potential utilization by surrounding communities.Keywords: Environmental quality standards; water quality; water pollution; gold mining; void)
Pemanfaatan Sekam Padi Menjadi Briket Ramah Lingkungan untuk Mendukung Energi Berkelanjutan di Desa Tanjung Baik Budi Kabupaten Ketapang: Empowering Local Farmers through Waste-to-Energy Innovation Desyana Ghafarunnisa; Syarifah Aqla; Firman; Sartika; Sy Indra Septiansyah; Maya Santi; Herman; Idris Herkan Afandi; Syarifah Mastura
Journal of Applied Community Engagement Vol. 5 No. 2 (2025): Journal of Applied Community Engagement (JACE)
Publisher : ISAS (Indonesian Society of Applied Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jace.v5i2.1329

Abstract

Tanjung Baik Budi Village has great potential in rice production, yet faces challenges with unmanaged rice husk waste, which is often burned openly, causing pollution and resource inefficiency. This community service program aims to train and assist local residents in transforming rice husk into eco-friendly briquettes as an alternative, sustainable energy source. The method includes socialization, technical training, production assistance, and evaluation. The briquette-making process involves carbonization, charcoal grinding, mixing with natural adhesives, molding, drying, and packaging. The results show increased community skills in producing briquettes and enthusiasm for developing alternative energy-based enterprises. Rice husk briquettes are proven to be environmentally friendly, affordable, easy to make, and economically promising. This activity supports higher education performance indicators and the implementation of the Merdeka Belajar Kampus Merdeka (MBKM) program. In conclusion, the community is capable of independently managing agricultural waste into valuable products. Continued mentoring and product marketing development are recommended to ensure long-term sustainability.
IDENTIFIKASI KETERDAPATAN SEBARAN PASIR ZIRKON DI KECAMATAN KENDAWANGAN KABUPATEN KETAPANG Flaminggo Gingga; Desyana Ghafarunnisa; Muh Anhar; Sy. Indra Septiansyah
JURNAL SIMETRIK Vol 16 No 1 (2026): Jurnal Simetrik (Sipil, Mesin, Listrik)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v16i1.3901

Abstract

Zircon sand (Zr) is widely associated with alluvial deposits, particularly in Ketapang Regency. Despite the considerable zircon resource potential, information regarding its occurrence and spatial distribution at a local scale remains limited. Identifying zircon sand occurrence is therefore essential as an initial step in evaluating and developing Zr resource potential. This study aims to determine the occurrence and analyze the spatial distribution of zircon sand in Kendawangan District, Ketapang Regency. Geologically, the study area is predominantly composed of swampy mud deposits (Qs). The geomorphology consists of two main landform units: Alluvial Plain Unit (Al) covering approximately 65% and Swamp Plain Unit (Dr) covering 35%. A total of 24 boreholes were drilled on a 150 m × 150 m grid over an area of 200 hectares. The subsurface is classified into three layers (A, B, and C), with 1 kg samples collected from each layer. Spatial distribution mapping of Zr was conducted using QGIS with the Inverse Distance Weighting interpolation method. The Zr grade distribution in Layer A is dominated by low to moderate values (6–28 mg), relatively uniform across the study area, indicating low to moderate mineralization potential. In Layer B, Zr grades are predominantly high (39–62 mg) and widely distributed, particularly in the central to southern parts, suggesting higher mineralization potential and better prospectivity for exploration. Layer C exhibits more heterogeneous distribution, with moderate to high grades (28–50 mg) covering most of the area, indicating a fairly favorable mineralization potential. Keywords: Alluvial, Grade, Inverse Distance Weighting, Ketapang Regency, Layer, Spatial, Zircon Sand,
Co-Authors Firman Flaminggo Gingga Herman idris herkan afandi Maya Santi Muh Anhar Sartika Sy Indra Septiansyah Sy. Indra Septiansyah Syarifah Aqla Syarifah Mastura