A comprehensive review on chromium (Cr) contamination and Cr (VI)-resistant extremophiles in diverse extreme environments

Z Rahman, L Thomas, SPK Chetri, S Bodhankar… - … Science and Pollution …, 2023‏ - Springer
Chromium (Cr) compounds are usually toxins and exist abundantly in two different forms, Cr
(VI) and Cr (III), in nature. Their contamination in any environment is a major problem. Many …

Chromium (VI) bioreduction and removal by Enterobacter sp. SL grown with waste molasses as carbon source: Impact of operational conditions

Y Sun, J Lan, Y Du, L Guo, D Du, S Chen, H Ye… - Bioresource …, 2020‏ - Elsevier
A technology utilizes bacteria Enterobacter sp. SL grown in an anaerobic reactor with waste
molasses as carbon source to bio-reduce hexavalent chromium [Cr (VI)] in wastewater and …

Effects of aging and reduction processes on Cr toxicity to wheat root elongation in Cr (VI) spiked soils

Y Yang, Y Peng, Y Ma, G Chen, F Li, T Liu - Environmental Pollution, 2022‏ - Elsevier
The bioavailability of chromium (Cr) in soils is highly dependent on Cr fractions and soil
physicochemical properties, but it is still unclear how the Cr fractions change in different …

Source identification of chromium in the sediments of the **aoqing River and Laizhou Bay: A chromium stable isotope perspective

X He, G Chen, Z Fang, W Liang, B Li, J Tang… - Environmental …, 2020‏ - Elsevier
Abstract Hexavalent chromium, Cr (VI), is a heavy metal contaminant and the reduction of Cr
(VI) is accompanied by large isotopic fractionation. In this study, the sources of Cr were …

Chemodenitrification by Fe (II) and nitrite: Effects of temperature and dual NO isotope fractionation

G Chen, W Zhao, Y Yang, D Chen, Y Wang, F Li… - Chemical …, 2021‏ - Elsevier
Chemodenitrification between Fe (II) and nitrite, an important nitrogen (N) cycling pathway,
varies depending on the season, indicating the impact of ambient temperatures. However …

Dual nitrogen-oxygen isotopic analysis and kinetic model for enzymatic nitrate reduction coupled with Fe (II) oxidation by Pseudogulbenkiania sp. strain 2002

G Chen, D Chen, F Li, T Liu, Z Zhao, F Cao - Chemical Geology, 2020‏ - Elsevier
While microbially mediated coupling process of nitrate reduction and Fe (II) oxidation
(NRFO) plays important role in widespread nitrogen and iron biogeochemical cycles in the …

Tracking the volatile and magmatic history of Vesta from chromium stable isotope variations in eucrite and diogenite meteorites

K Zhu, PA Sossi, J Siebert, F Moynier - Geochimica et Cosmochimica Acta, 2019‏ - Elsevier
Abstract Although Solar System bodies exhibit large variations in their volatile element
abundances, the mechanisms and conditions that lead to these variations remain …

Lab-scale evaluation of the microbial bioremediation of Cr (VI): contributions of biosorption, bioreduction, and biomineralization

X Yan, X Liu, M Zhang, J Wang, J Zhong, D Ma… - … Science and Pollution …, 2021‏ - Springer
Bioremediation of Cr (VI) by microorganisms has attracted immense research interests.
There are three different mechanisms for bioremediation of Cr (VI): biosorption, bioreduction …

Quantifying and normalizing the combined phytotoxicity of mixed-valence chromium in soil integrated by toxicity equivalence

N **ong, C Huo, J Huang, Y Chen, Y Wu, J Li… - Environmental …, 2024‏ - Elsevier
Abstract When Cr (VI) and Cr (III) coexist, the reasonable assessment of the combined
toxicity of chromium in soil and its ecological risk is still not well resolved. In the present …

Chromium isotopic compositions of a reef in the South China Sea: Biological effects and influence from early diagenetic Mn-oxides reduction

X Yu, Z Fang, X He, L Yi, C Deng, W Yan… - Palaeogeography …, 2023‏ - Elsevier
Global climate fluctuations have been inextricably linked with changes in the marine
environment and ecosystems' evolution during the Cenozoic. The chromium isotopic …