In situ remediation of subsurface contamination: opportunities and challenges for nanotechnology and advanced materials

T Zhang, GV Lowry, NL Capiro, J Chen… - Environmental …, 2019 - pubs.rsc.org
Complex subsurface contamination domains and limited efficacy of existing treatment
approaches pose significant challenges to site remediation and underscore the need for …

Review on technologies for the development of effective and practical chromate removal from wastewaters

J Ifthikar, II Shahib, W Jiang, R Senthilnithy… - Journal of …, 2023 - Elsevier
Water pollution by chromate contamination is a serious problem. Similarly, highly oxidative
oxo-anionic chromate elimination from wastewater is a critical task due to the complexity of …

Different pathways for Cr (III) oxidation: implications for Cr (VI) reoccurrence in reduced chromite ore processing residue

W Liu, J Li, J Zheng, Y Song, Z Shi, Z Lin… - … Science & Technology, 2020 - ACS Publications
Hexavalent chromium contamination is a global environmental issue and usually reoccurs in
alkaline reduced chromite ore processing residues (rCOPR). The oxidation of Cr (III) solids …

Strained zero‐valent iron for highly efficient heavy metal removal

K Wei, H Li, H Gu, X Liu, C Ling, S Cao… - Advanced Functional …, 2022 - Wiley Online Library
Microscale zero‐valent iron is one of the most important multifunctional environmental
remediation materials, yet its passivated iron oxide shell hampers the transportation of …

Reductive sequestration of Cr (VI) and immobilization of C during the microbially mediated transformation of Ferrihydrite-Cr (VI)-fulvic acid coprecipitates

S Hu, H Zhang, Y Yang, W Wang, W Zhou… - Environmental …, 2023 - ACS Publications
Cr (VI) detoxification and organic matter (OM) stabilization are usually influenced by the
biological transformation of iron (Fe) minerals; however, the underlying mechanisms of …

Cr (VI) reduction and sequestration by FeS nanoparticles formed in situ as aquifer material coating to create a regenerable reactive zone

Z Liu, Q Yang, P Zhu, Y Liu, X Tong, T Cao… - Environmental …, 2024 - ACS Publications
Remediation of large and dilute plumes of groundwater contaminated by oxidized pollutants
such as chromate is a common and difficult challenge. Herein, we show that in situ formation …

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 …

Natural source of Cr (VI) in soil: The anoxic oxidation of Cr (III) by Mn oxides

M Ao, S Sun, T Deng, F Zhang, T Liu, Y Tang… - Journal of Hazardous …, 2022 - Elsevier
Cr (VI) from oxidation of geogenic Cr (III) minerals is gradually becoming the primary source
of Cr (VI) in soils and groundwater instead of direct emissions. Thermodynamically, natural …

Coprecipitation of Fe/Cr hydroxides with organics: Roles of organic properties in composition and stability of the coprecipitates

N Deng, Z Li, X Zuo, J Chen, S Shakiba… - Environmental …, 2021 - ACS Publications
Iron hydroxides are important scavengers for dissolved chromium (Cr) via coprecipitation
processes; however, the influences of organic matter (OM) on Cr sequestration in Fe/Cr-OM …

Removal of methylene blue from aqueous solution using agricultural residue walnut shell: equilibrium, kinetic, and thermodynamic studies

R Tang, C Dai, C Li, W Liu, S Gao… - Journal of …, 2017 - Wiley Online Library
Walnut shell (WS), as an economic and environmental‐friendly adsorbent, was utilized to
remove methylene blue (MB) from aqueous solutions. The effects of WS particle size …