Results 1 to 10 of about 1,865,203 (286)

Removal of Cr(VI) from Aqueous Solution by Polypyrrole/Hollow Mesoporous Silica Particles

open access: yesNanomaterials, 2020
The removal of Cr(VI) in wastewater plays an important role in human health and environment. In this work, polypyrrole/hollow mesoporous silica particle (PPy/HMSNs) adsorbents have been newly synthesized by in-situ polymerization, which prevent the ...
Linlin Du   +4 more
doaj   +2 more sources

Cr(VI) anion-imprinted polymer synthesized on mesoporous silicon via synergistic action of bifunctional monomers for precise identification and separation of Cr(VI) from aqueous solution by fixed-bed adsorption

open access: yesWater Science and Technology, 2023
The novel Cr(VI) anion-imprinted polymer (Cr(VI)-IIP) was prepared by a surface imprinting technique with bifunctional monomers pre-assembly system based on mesoporous silicon (SBA-15). The synthesized Cr(VI)-IIP was characterized by Fourier transmission
Ya Su   +7 more
doaj   +1 more source

Effects of exogenous sulfate on the chromium(VI) metabolism of chromium(VI)-resistant engineered strains

open access: yesEcotoxicology and Environmental Safety, 2021
Objective: To explore the effects of exogenous sulfate on the efficiency of chromium(VI) metabolism of three chromium(VI)-resistant Escherichia coli strains (eChrA / eChrB / eChrAB) by adding chromium(VI)-resistance genes chrA and/or chrB, for better ...
Xinglong Li   +11 more
doaj   +1 more source

Resistance mechanisms and remediation potential of hexavalent chromium in Pseudomonas sp. strain AN-B15

open access: yesEcotoxicology and Environmental Safety, 2023
The understanding of bacterial resistance to hexavalent chromium [Cr(VI)] are crucial for the enhancement of Cr(VI)-polluted soil bioremediation. However, the mechanisms related to plant-associated bacteria remain largely unclear.
Yu Shi   +7 more
doaj   +1 more source

Characterization of Penicillium oxalicum SL2 isolated from indoor air and its application to the removal of hexavalent chromium. [PDF]

open access: yesPLoS ONE, 2018
Removal of toxic Cr(VI) by microbial reduction is a promising approach to reducing its ecotoxicological impact. To develop bioremediation technologies, many studies have evaluated the application of microorganisms isolated from Cr(VI)-contaminated sites.
Bibo Long   +6 more
doaj   +1 more source

Remediation of Cr(VI)-contaminated soil using combined chemical leaching and reduction techniques based on hexavalent chromium speciation

open access: yesEcotoxicology and Environmental Safety, 2021
Hexavalent chromium [Cr(VI)] has strong mobility and it can enter into deep regions of soil. Cr(VI)-contaminated soil remediation is the process of removing Cr(VI) present in deep soils and any residual Cr(VI). In this study, the Cr(VI)-contaminated soil
Donghui Wang   +5 more
doaj   +1 more source

Effects of liming on Cr(VI) reduction and Cr phytotoxicity in Cr(VI)-contaminated soils [PDF]

open access: yesSoil Science and Plant Nutrition, 2012
Liming is the most common approach for the amelioration of soil acidity in agriculture, and is widely used to reduce the mobility and bioavailability of heavy metals in soil. The purpose of this study was to investigate the hexavalent chromium [Cr(VI)] reduction and chromium (Cr) phytotoxicity in Cr(VI)-contaminated soils at different pH levels as a ...
Chiou-Pin Chen   +2 more
openaire   +1 more source

Mechanism of Cr(VI) removal by efficient Cr(VI)-resistant Bacillus mobilis CR3

open access: yesWorld Journal of Microbiology and Biotechnology, 2023
Abstract Cr(VI) is a hazardous environmental pollutant that poses significant risks to both ecosystems and human health. We successfully isolated a novel strain of Bacillus mobilis, strain CR3, from Cr(VI)-contaminated soil. The strain CR3 could show 86.70% removal capacity at 200 mg/L Cr(VI) and also good Cr(VI) removal capacity at different ...
Yubo, Ye   +5 more
openaire   +2 more sources

New insights into the reverse of chromium-induced reprotoxicity of pregnant mice by melatonin

open access: yesEcotoxicology and Environmental Safety, 2022
Hexavalent chromium Cr(VI) is a well-known environmental toxic metal that causes reprotoxicity in pregnant females. There are currently no appropriate interventions or treatments for Cr(VI) exposure during pregnancy.
Jia-Jie Ding   +8 more
doaj   +1 more source

Leachability and Stability of Hexavalent-Chromium-Contaminated Soil Stabilized by Ferrous Sulfate and Calcium Polysulfide

open access: yesApplied Sciences, 2018
Ferrous sulfate (FeSO4) and calcium polysulfide (CaS5) stabilization are practical approaches to stabilizing hexavalent chromium (Cr(VI))-contaminated soil. The leachability and stability of Cr(VI) and Cr are important factors affecting the effectiveness
Ting-Ting Zhang, Qiang Xue, Ming-Li Wei
doaj   +1 more source

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