The biosorption of mercury (II) on 14 fungal biomasses, Aspergillus flavus I-V, Aspergillus fumigatus I-II, Helminthosporium sp., Cladosporium sp., Mucor rouxii mutant, M. rouxii IM-80, Mucor sp 1 and 2, and Candida albicans, was studied in this work. It was found that the biomasses of the fungus M. rouxii IM-80, M. rouxii mutant, Mucor sp1, and Mucor sp 2 were very efficient removing the metal in solution, using dithizone, reaching the next percentage of removals: 95.3%, 88.7%, 80.4%, and 78.3%, respectively. The highest adsorption was obtained at pH 5.5, at 30°C after 24 hours of incubation, with 1 g/100 mL of fungal biomass.
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http://dx.doi.org/10.1155/2012/156190 | DOI Listing |
Sci Rep
December 2024
Marine Botany, Faculty of Biology and Chemistry & MARUM, University of Bremen, 28359, Bremen, Germany.
Kelps (Laminariales, Phaeophyceae) are foundation species along Arctic rocky shores, providing the basis for complex ecosystems and supporting a high secondary production. Due to ongoing climate change glacial and terrestrial run-off are currently accelerating, drastically changing physical and chemical water column parameters, e.g.
View Article and Find Full Text PDFEnviron Res
December 2024
School of Energy and Environment, Southeast University, Nanjing, 210096, China; Key Laboratory of Water Safety and Aquatic Ecosystem Health of Xizang, Xianyang, 712082, China; Key Laboratory of Water Pollution Control and Ecological Restoration of Xizang, National Ethnic Affairs Commission, Xianyang, 712082, China. Electronic address:
In high-altitude regions, elevated mercury (Hg) levels in wastewater treatment plants (WWTPs) influent raise concerns about treatment efficiency and environmental impact. This study investigated the Hg biosorption capacity of activated sludge under high-altitude conditions, focusing on the binding mechanisms between EPS and Hg, and variations in EPS secretion. Low pressure, oxygen, and temperature at high altitudes increase EPS secretion, enhancing Hg biosorption.
View Article and Find Full Text PDFEnzyme Microb Technol
February 2025
VBlab - Laboratory of Bacterial Viruses, University of Sorocaba, Sorocaba, SP 18023-000, Brazil; Department of Biology and CESAM, University of Aveiro, Campus Universitário de Santiago, Aveiro P-3810-193, Portugal. Electronic address:
Contamination of water with mercury constitutes a serious public health problem, especially in locations where the use of Hg occurs improperly/illegally and negligently, as is the case in the Amazon region (Brazil). The riverside populations in the Amazon are frequently invaded by illegal mining, exposing these populations to significant risks, of which contamination by heavy metals such as mercury (Hg) has the potential to cause serious illnesses. Furthermore, exposure to this metal causes neurological, cardiovascular, immune and digestive system disorders, in addition to damaging the lungs, kidneys, skin and eyes.
View Article and Find Full Text PDFJ Environ Health Sci Eng
June 2024
School of Materials, Energy, Water, Environmental Sciences and Engineering (MEWES), The Nelson Mandela African Institution of Science and Technology (NM-AIST), P.O. Box 447, Arusha, Tanzania.
Unlabelled: Heavy metals exist in the ecosystem both naturally and due to anthropogenic activities and as recalcitrant pollutants; they are non-biodegradable and cause acute and chronic diseases to human beings and many lifeforms. A statistical experimental approach was applied in this current study to optimize the detoxification of mercury [Hg(II)] from mono-component biosorption system by a novel hybrid granular activated carbon (biosorbent) prepared from maize plant residues. The analysis of variance by the application of central composite design shows that all the studied independent factors greatly influence Hg(II) removal efficiency and uptake capacity.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India. Electronic address:
Lead, mercury, and cadmium are classified as toxic under the toxic Substances' Priority List by CDC-ATSDR (Center for Disease Control-Agency for Toxic Substances and Disease Registry). This toxic trio is capable of disrupting the one-health harmony due to its human, animal, and environmental hazards. The present study aimed in removing the toxic trio within 24 h using a novel Achromobacter sp.
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