Results 71 to 80 of about 210,511 (271)

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

open access: yesPolymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco   +11 more
wiley   +1 more source

The Effect of Sodium Selenite on Fertility of Albino Male Mice Treated with Hexavalent Chromium

open access: yesمجلة بغداد للعلوم, 2013
  This study was conducted to determine the effect of sodium selenite (0.5 mg/kg ) on fertility of mature albino mice treated with hexavalent chromium (1000 ppm) .
doaj   +1 more source

Synthesis and Surface Engineering of Two‐Dimensional MXenes for Advanced Functional Applications

open access: yesThe Chemical Record, EarlyView.
This study highlights the synthesis, surface engineering, and advanced functional applications of MXenes, emphasizing key preparation strategies that enable their use in catalysis, energy storage, sensing, and environmental remediation. Two‐dimensional MXenes (2DMxn), a rapidly expanding family of transition metal carbides, nitrides, and carbonitrides ...
Dalil N. H. Al‐Ghubairi   +4 more
wiley   +1 more source

Remoção de espécies de cromo em águas contaminadas utilizando alga marinha como adsorvente [PDF]

open access: yes, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Engenharia Quimica.Cromo e seus compostos são utilizados em diversas indústrias.
Dittert, Ingrid Maria
core  

Occupational\ua0exposure\ua0to chromium (VI)\ua0 [PDF]

open access: yes
"Recommendations are made for a standard for occupational exposure to hexavalent chromium, with sections on workplace air, medical monitoring, labeling, personal protective equipment, informing workers of hazards from hexavalent chromium, work practices,

core   +1 more source

Investigations into the existence of hexavalent chromium in industrial glasses [PDF]

open access: yes, 1997
In several melting experiments the existence of hexavalent chromium in soda-lime-silica glasses depending on the oxidation conditions and the presence of iron have been investigated by means of a recently proposed wet chemical analysis procedure.
Müller-Simon, Hayo, Dusdorf, Wolfgang
core   +2 more sources

Photocatalytic and Biotechnological Strategies for Remediation of Persistent Organic Pollutants: Mechanisms, Toxicity, and Antimicrobial Perspectives

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Persistent organic pollutants (POPs) pose significant ecological and human health risks due to their persistence, bioaccumulation, toxicity, and global distribution. Conventional remediation methods are often inadequate for achieving complete mineralization, demonstrating the need for advanced and substantial approaches.
Viola O. Okechukwu   +2 more
wiley   +1 more source

Reduction of hexavalent chromium from electroplating wastewater to trivalent chromium. [PDF]

open access: yes, 2000
Electroplating wastewater contains hexavalent chromium of significant concentration and must not be disposed directly into bodies of water without treatment and meeting the necessary effluent quality standards set by the Department of Environment and ...
Lee, Blesmarie G.   +2 more
core  

Quaternized Wood as Sorbent for Hexavalent Chromium [PDF]

open access: yesApplied Biochemistry and Biotechnology, 2001
The potential of quaternized wood (QW) chips in removing hexavalent chromium from synthetic solution and chrome waste under both batch and continuous-flow conditions was investigated. Sorption was found to be dependent on pH, metal concentration, and temperature.
Low, Kun She   +2 more
openaire   +2 more sources

Chromium and Cobalt in Used Leather Items: A Danish Market Survey

open access: yesContact Dermatitis, EarlyView.
Used leather items from the Danish second‐hand market frequently release chromium(VI) and, in some cases, cobalt. Some items exceed current EU limits, highlighting a persistent but underrecognised source of exposure in the circular economy that may contribute to ongoing contact allergy despite existing regulations.
Mikkel Bak Jensen   +6 more
wiley   +1 more source

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