A total of 222 surface sediments were collected in the Ulleung Basin, southwestern East/Japan Sea, from the coast to the basin and analyzed for grain size, total organic carbon, biogenic silica and major and trace elements. The metal concentrations of the surface sediments were highly spatially variable, and their distributions were grouped into four types by factor analysis: waste dumping materials (Cr, Cu, Zn, Sn, Sb, and Pb); detrital materials (Al, Fe, and Cs); suboxic diagenetic materials (Mn, Mo, Co, and Ni); and anoxic diagenetic materials (Cd and U). From core samples collected near the dumping site, approximately the top 10 cm was well mixed in the Pb profiles and highly enriched in the above metals related to dumping materials. The enrichment factor of Sn indicates dumping materials well, and its distribution can be used to estimate the dispersion range of the dumped material in this basin.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.marpolbul.2024.116747 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Utilization of Copper Flotation Tailings in Geopolymer Materials Based on Zeolite and Fly Ash.
Materials (Basel)
December 2024
Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia.
Copper flotation tailings (FTs), resulting from the separation and beneficiation processes of ores, are a significant source of environmental pollution (acid mine drainage, toxic elements leaching, and dust generation). The most common disposal method for this industrial waste is dumping. However, due to their favorable physical and chemical properties-the high content of aluminosilicate minerals (60-90%)-flotation tailings can be effectively treated and reused through geopolymerization technology, thereby adding value to this waste.
View Article and Find Full Text PDFHydrothermal conversion of biomass for co-production of carbon quantum dots and biofuels.
Environ Sci Pollut Res Int
January 2025
Biofuel Laboratory, Department of Energy, Tezpur University, Assam, 784028, India.
Agro-processing industries generate a substantial quantity of biomass wastes. Conversion of these wastes into valuable material could be profitable considering both environmental and economic aspects. Among various biomass conversion methods, hydrothermal conversion can be used for co-production of biofuel and other valuable materials like carbon quantum dots (CQDs) and activated carbons.
View Article and Find Full Text PDFA phytoremediation approach for the restoration of coal fly ash polluted sites: A review.
Heliyon
December 2024
Tshwane University of Technology, Faculty of Science, Department of Chemistry, Pretoria, 0001, Private Bag X680, South Africa.
Coal fly ash (CFA) is a predominant waste by-product of coal combustion which is disposed of in open ash dams that utilize large pieces of land. This waste material is classified as a hazardous substance in South Africa as well as in other countries due to its fine particles that are easily blown to the atmosphere and the unacceptable levels of heavy metals and persistent organic pollutants. Contaminants in CFA can pollute surface and ground water, agricultural sites, soil and therefore pose risks to the health of humans and the environment.
View Article and Find Full Text PDFSustainable high-entropy materials?
Sci Adv
December 2024
Max Planck Institute for Sustainable Materials, Max-Planck-Straße 1, 40237 Düsseldorf, Germany.
High-entropy materials (HEMs) show inspiring structural and functional properties due to their multi-elemental compositions. However, most HEMs are burdened by cost-, energy-, and carbon-intensive extraction, synthesis, and manufacturing protocols. Recycling and reusing HEMs are challenging because their design relies on high fractions of expensive and limited-supply elements in massive solid solutions.
View Article and Find Full Text PDFA review of utilization of waste polyurethane foam as lightweight aggregate in concrete.
Heliyon
December 2024
School of Civil Engineering, Vellore Institute of Technology, Chennai Campus, Chennai, 600127, India.
Engineered concrete mixes using industrial waste as a construction material are an enormous step towards sustainable development and financial benefits. The refrigeration, automobile, and construction industries mainly generate polyurethane foam waste material. Most of the polyurethane foam wastes are dumped in landfills or incineration, which creates environmental effects.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!