Beaches are subject to solid waste contamination at the strandline. Litter depositional dynamics is influenced by specific beach morphology and sources of solid wastes. The amount of items on the strandline of Boa Viagem beach (Recife, Brazil) was evaluated during dry and rainy seasons of 2005 to characterize their sources and depositional patterns. The strandline was surveyed once a month to count and classify all visible solid waste items within a belt-transect. Plastics were used for detailed analysis of the wastes accumulated. There were quantitative, but not qualitative, differences in litter accumulation during the year and parts of the beach. The main source of debris was land-based. In general, the beach was low-polluted in the dry season and medium-polluted during the rainy season. The method is a low-cost and highly efficient characterization of solid wastes contamination of urban beaches.
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http://dx.doi.org/10.1177/0734242X08088705 | DOI Listing |
Sci Rep
December 2024
Mining College, Guizhou University, Guiyang, 550025, China.
Coal gangue (CG) is an industrial solid waste produced by coal mining and separation that is considered to have a significant effect on the soil or water environment when exposed to the air, exacerbating ecological pollution. The comprehensive utilization of CG has always been a difficult problem due to the complex mineralogical characteristics. Producing concrete aggregates with CG is an effective strategy for utilising CG resources synthetically.
View Article and Find Full Text PDFWaste Manag
December 2024
School of Environmental Science and Engineering, Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Engineering Research Center of Non-ferrous Metal Waste Recycling, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, China. Electronic address:
This study demonstrates the potential of secondary aluminum dross (SAD) to enhance the vitrifying hazardous waste incineration fly ash (FA) and bottom slag (BS). Based on the CaO-SiO-AlO ternary phase diagram, a liquid phase can be achieved at relatively low temperatures by carefully adjusting the AlO content, particularly when the CaO to SiO ratio is around 0.66.
View Article and Find Full Text PDFEnviron Int
December 2024
SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, China; School of Environment, South China Normal University, University Town, Guangzhou, China. Electronic address:
Municipal landfills are hotspot sources of antimicrobial resistance (AMR) and are also important habitats of contaminant-degrading bacteria. However, high diversity of antibiotic resistance genes (ARGs) in landfills hinders assessing AMR risks in the affected environment. More concerned, whether there is co-selection or enrichment of antibiotic-resistant bacteria and contaminant-degrading bacteria in these extremely polluted environments is far less understood.
View Article and Find Full Text PDFWater Res
December 2024
Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.
This paper investigates the efficient degradation of ciprofloxacin (CIP) in a sustainable γ-valerolactone (GVL) and water (H₂O) mixed system by controlling proton transfer and reducing the self-decay rate of Fe(VI). The kinetic model reveals that the GVL/H₂O system exhibits a rate constant of (9.7 ± 0.
View Article and Find Full Text PDFWaste Manag Res
December 2024
Chair of Waste Processing Technology and Waste Management, Department of Environmental and Energy Process Engineering, Montanuniversitaet Leoben, Leoben, Austria.
This article uses model materials to introduce a controlled, location- and manufacturer-independent internationally accepted method for assessing shredding machines based on large-scale tests. Furthermore, a better understanding of the comminution behaviour of shredders with fixed settings (gap width, shaft speed, cutting tool geometry) is in the focus of the present investigation and assessed, using the statistical analyses for particle size distribution in certain screen sections. Conclusions have been drawn on the comminution behaviour in general and the material-material interactions of different fractions in the grinding chamber of the shredder by showing significant differences in the pure fraction's comminution behaviour against the mixture's comminution behaviour.
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