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All Journal Journal of Degraded and Mining Lands Management Makara Journal of Science
Maya Lukita, Maya
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Heavy metals in soil contaminated with aluminum black dross waste in Jombang Regency, East Java Lukita, Maya; Abidin, Zaenal; Riany, Etty; Ismail, Ahyar
Journal of Degraded and Mining Lands Management Vol. 12 No. 2 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.122.7301

Abstract

Aluminum waste recycling activities in Sumobito District, Jombang Regency, produce aluminum black dross that is classified as hazardous waste. Aluminum black dross dumped into the environment will become a potential hazard to human health and environmental quality. This study aimed to determine the soil condition at aluminum black dross landfills in Sumobito District. Soil quality was determined by comparing the concentration of heavy metals in the samples with the total concentration (TC) of heavy metal pollutants regulated by the Government Regulation of the Republic of Indonesia No. 22 of 2021. Soil samples were analyzed using X-ray fluorescence (XRF). The analysis of four landfill samples showed that all samples should be managed as hazardous waste. The analysis of soil samples carried out around the landfill area shows that three samples are managed as non-hazardous waste, and one soil sample must be managed as hazardous waste. This indicates that heavy metal infiltration of aluminum black dross from the landfill area into the soil area has occurred.
Characterization of Aluminum Black Dross Leachate from the Tertiary Smelting Industry in Jombang, East Java Lukita, Maya; Riani, Etty; Ismail, Ahyar; Abidin, Zaenal
Makara Journal of Science Vol. 29, No. 4
Publisher : UI Scholars Hub

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Abstract

Aluminum black dross is a type of hazardous waste because it readily reacts with water to produce gas. Previous studies have reported the potential dangers of aluminum black dross to humans and the environment. This study examined the characteristics of aluminum black dross from Jombang Regency, East Java Province. The properties investigated included the volume of gas produced during leaching, the solubility of salts and aluminum under various conditions, and the mineral characteristics analyzed via Fourier transform infrared (FTIR) spectroscopy, X-ray fluorescence (XRF), and X-ray diffraction (XRD). Notably, 115 mL of gas was produced from each 0.5 g of aluminum black dross that reacted with water, and the gas was identified as a mixture of hydrogen, methane, and ammonia. Alkaline conditions (pH = 10) during the leaching process were optimal for both gas production and aluminum solubility. The highest amount of dissolved salts was observed under acidic leaching conditions. The nitride phase, responsible for producing corrosive ammonia, was detected via FTIR and XRD analyses. Aluminum black dross is significant as an alumina-based material owing to its high Al2O3 content, which increases after leaching, as demonstrated via XRF measurements. This study provides an alternative leaching process for aluminum black dross based on the gases produced and the residue generated. This study presents the characterization of aluminum black dross as hazardous waste due to its emission of gases harmful to human health and the environment. The results highlight the urgent need for implementing safe handling and management practices for aluminum black dross to minimize potential risks
Co-Authors Ahyar Ismail Arif Rahman Bambang Heru Susanto, Bambang Heru Dedy Alharis Nasution, Dedy Alharis Eny Kusrini Etty Riani Misri Gozan Riany, Etty Shella Wu, Shella Teguh Wikan Widodo, Teguh Wikan Yusraini Dian Inayati Siregar Zaenal Abidin