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Nanosize-effect on the distribution of heavy metals in copper smelting dust: Based on sophisticated dust sorting approach
Dust particles emitted from smelters can be hazardous to ecosystems and humans, as they are often enriched in metallic compounds. Here, we combined multi-method mineralogical analysis with a sophisticated size...
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Case of Chrome-Contaminated Site Remediation Project
The remediation project was carried out in a ferroalloy enterprise that began to produce element chromium in the early 1960s, with an annual output of 3000 tons of chromium.
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Contamination Characteristics of Soils and Biological and Chemical Behavior of Chromium in Soil
Chromium salt and chromium metal are important industrial raw materials and chemicals that are widely applied in electroplating, metallurgy, anticorrosion, leather, dye and other industries. 10% of the commodi...
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Microbial Remediation of Chromium-Polluted Soil
Conventional techniques used for remediating Cr(VI) contaminated soils typically involve physico-chemical extraction, landfill disposal, stabilization/solidification, flushing, phytoremediation and soil washin...
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Chapter
Chemical Remediation of Chromium-Contaminated Soil
For the purpose of cleaning up soil that has been tainted by chromium, several remediation methods have been invented throughout the course of time. The chemical reduction strategy is one of the more common te...
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Chapter
Mechanisms of Cr(VI) Reduction by Microorganisms
In nature, chromium exists in nine valence states with valences ranging from −2 to +6, however only Cr(III) and Cr(VI) are significantly important for the environment. When compared to Cr, Cr(VI) has a higher ...
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Chapter
Mechanism of Chemical Reduction of Cr(VI)
The environmental behavior of chromium (Cr) is heavily influenced by its oxidation state, which affects its solubility, mobility, and toxicity. In natural environments, Cr can exist in a variety of valence sta...
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Article
Open AccessFacet-Controlled LiMn2O4/C as Deionization Electrode with Enhanced Stability and High Desalination Performance
First report of a lithium-ion battery cathode as a deionization electrode for desalination.
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Article
Effect of transport agent boron triiodide on the synthesis and crystal quality of boron arsenide
Cubic boron arsenide (BAs) has attracted great attention due to its high thermal conductivity, however, its controllable, stable, and ideal preparation remains challenging. Herein, we investigated the effect o...
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Article
The Role of Chelators in Electrodeposition of Cu-As Alloys from Copper Electrolyte
Copper electrorefining is a key part of copper metallurgical processes. The electrolyte is usually purified to prevent the accumulation of impurities and contamination of the cathode. Cyclone electrowinning is...
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Article
Enhanced adsorption-coupled reduction of hexavalent chromium by 2D poly(m-phenylenediamine)-functionalized reduction graphene oxide
To improve the mass transfer efficiency of poly(m-phenylenediamine) for the effective removal of hexavalent chromium (Cr (VI)) from aqueous solution, a facile and one-step method to prepare two-dimensional pol...
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Article
Increased chalcopyrite bioleaching capabilities of extremely thermoacidophilic Metallosphaera sedula inocula by mixotrophic propagation
Extremely thermoacidophilic Crenarchaeota belonging to the order Sulfolobales, such as Metallosphaera sedula, are metabolically versatile and of great relevance in bioleaching. However, the impacts of extreme the...
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Article
Seasonal and spatial contamination statuses and ecological risk of sediment cores highly contaminated by heavy metals and metalloids in the **angjiang River
To reveal seasonal and spatial variations of heavy metals and metalloids (HMMs) in sediment of the **angjiang River, a total of 24 water and 649 sediment samples were collected from six sampling stations in th...
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Article
New Insight into Enzymatic Hydrolysis of the Rice Straw and Poplar: an In-depth Statistical Analysis on the Multiscale Recalcitrance
Certain substrate-related parameters that determine sugar release from pretreated lignocellulosic biomass are important for the biorefinery process optimization. Unfortunately, phylogenetical differences in pl...
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Article
Preparation of stable and high-efficient poly(m-phenylenediamine)/reduced graphene oxide composites for hexavalent chromium removal
Structural instability of polymers under strong acidic condition severely limits their application in the field of environment. A synthetic strategy for the preparation of poly(m-phenylenediamine)/reduced graphen...
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Article
Bioconversion of lignin into bioplastics by Pandoraea sp. B-6: molecular mechanism
Lignin is a byproduct in the pulp and paper industry and is considered as a promising alternative for the provision of energy and chemicals. Currently, the efficient valorization of lignin is a challenge owing...
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Article
A RQPSO Algorithm for Multiphase Equilibrium Calculation in the KIVCET Process
The prediction of phase configurations and the optimization of operating parameters in the metallurgical process are normally achieved by the multiphase equilibrium calculation (MEC), which is formulated as a ...
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Article
Stabilization of Cd-, Pb-, Cu- and Zn-contaminated calcareous agricultural soil using red mud: a field experiment
Red mud (RM) was used to remediate heavy metal-contaminated soils. Experiments with two different dosages of RM added to soils were carried out in this study. It was found that soil pH increased 0.3 and 0.5 un...
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Article
Uranium bioleaching from low-grade carbonaceous-siliceous-argillaceous type uranium ore using an indigenous Acidithiobacillus ferrooxidans
We evaluated the effectiveness of bioleaching uranium from a low-grade carbonaceous-siliceous-argillaceous type uranium ore using an indigenous iron-oxidizing bacteria, Acidithiobacillus ferrooxidans, isolated fr...
