Chromium in environment, its toxic effect from chromite-mining and ferrochrome industries, and its possible bioremediation

JJ Coetzee, N Bansal, EMN Chirwa - Exposure and health, 2020 - Springer
Chromium has long been recognized as a toxic, mutagenic and carcinogenic metal. It is
toxic to microorganism, plants, animals and humans. Chromium exists in environment in two …

Metallic nanoparticles for catalytic reduction of toxic hexavalent chromium from aqueous medium: A state-of-the-art review

MS Bashir, N Ramzan, T Najam, G Abbas, X Gu… - Science of the Total …, 2022 - Elsevier
The ever increasing concentration of toxic and carcinogenic hexavalent chromium (Cr (VI))
in various environmental mediums including water-bodies due to anthropogenic activities …

Hexavalent chromium reduction with zero-valent iron (ZVI) in aquatic systems

M Gheju - Water, Air, & Soil Pollution, 2011 - Springer
Hexavalent chromium is a heavy metal used in a variety of industrial applications which is
highly toxic to humans, animals, plants and microorganisms. Moreover, it is a well …

Nanoscale zero-valent iron supported on mesoporous silica: characterization and reactivity for Cr (VI) removal from aqueous solution

E Petala, K Dimos, A Douvalis, T Bakas, J Tucek… - Journal of hazardous …, 2013 - Elsevier
Abstract MCM-41-supported nanoscale zero-valent iron (nZVI) was sytnhesized by
impregnating the mesoporous silica martix with ferric chloride, followed by chemical …

Outstanding performance of electro-Fenton process for efficient decontamination of Cr (III) complexes via alkaline precipitation with no accumulation of Cr (VI) …

B Jiang, Q Niu, C Li, N Oturan, MA Oturan - Applied Catalysis B …, 2020 - Elsevier
The" oxidation-precipitation" processes has been considered as the feasible strategy for the
decontamination of Cr (III) complexes. However, the priority of this strategy was seriously …

Removal of chromium from Cr (VI) polluted wastewaters by reduction with scrap iron and subsequent precipitation of resulted cations

M Gheju, I Balcu - Journal of hazardous materials, 2011 - Elsevier
This work presents investigations on the total removal of chromium from Cr (VI) aqueous
solutions by reduction with scrap iron and subsequent precipitation of the resulted cations …

Simultaneous removal of Cr (VI) and phenol by persulfate activated with bentonite-supported nanoscale zero-valent iron: reactivity and mechanism

ZH Diao, XR Xu, H Chen, D Jiang, YX Yang… - Journal of hazardous …, 2016 - Elsevier
The applicability of bentonite-supported nanoscale zero-valent iron (B-nZVI) as a catalyst to
activate persulfate (PS) for the simultaneous removal of Cr (VI) and phenol was …

Efficient iron recovery from iron tailings using advanced suspension reduction technology: A study of reaction kinetics, phase transformation, and structure evolution

S Yuan, Q Zhang, H Yin, Y Li - Journal of Hazardous Materials, 2021 - Elsevier
Highlights•Highly efficient iron recovery from iron tailings using advanced SMRS technology
was achieved.•P1 models with an Eα of 51.56 kJ/mol and ak of 3.14 exp (− 51.56/RT) were …

Enhanced removal of hexavalent chromium by lignosulfonate modified zero valent iron: Reaction kinetic, performance and mechanism

K He, S Wang, Y Liu, Z Cao, L Yang, F He - Science of The Total …, 2023 - Elsevier
The application of lignin derivative as modifier is an economical and efficient approach to
improve the reactivity of raw material towards pollutant removal. In this study, lignosulfonate …

Chemical processes of Cr (VI) removal by Fe-modified biochar under aerobic and anaerobic conditions and mechanism characterization under aerobic conditions …

C Su, S Wang, Z Zhou, H Wang, X Xie, Y Yang… - Science of the Total …, 2021 - Elsevier
Fe-modified biochar (FeBC) has been considered for aqueous hexavalent chromium (Cr
(VI)) removal, but a better understanding is needed with respect to the removal behavior …