Electrochemically enhanced reduction of hexavalent chromium in contaminated clay: Kinetics, energy consumption, and application of pulse current

Sun, Tao; Pamukcu, Sibel; Ottosen, Lisbeth M.; Wang, Fei

doi:10.1016/j.cej.2014.10.081

Cited by 27 publications

(4 citation statements)

References 33 publications

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“…It is urgent to develop various methodologies for elimination of Cr(VI) from water bodies. Various methodologies such as adsorption ( Ali and Gupta, 2006 ; Maponya et al, 2020 ), membrane filtration ( Kaya et al, 2016 ), solvent extraction ( Venkateswaran and Palanivelu, 2004 ), electrochemical precipitation ( Sun et al, 2015 ), coagulation ( Golbaz et al, 2014 ), bioremediation ( Beller et al, 2013 ; Benazir et al, 2010 ), ion exchange ( Xiao et al, 2016 ) and catalytic reduction ( Saikia et al, 2017 ) in addition to some traditional strategies ( Barrera-Díaz et al, 2012 ; Malaviya and Singh, 2011 ) based on reduction followed by precipitation have been employed for removal of Cr(VI) from aqueous medium. Although adsorption technology is an in-expensive and green methodology and does not involve formation of any side products.…”

Section: Introductionmentioning

confidence: 99%

Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects

Farooqi

Akram

Begum

et al. 2021

Journal of Hazardous Materials

118

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Section: Introductionmentioning

confidence: 99%

Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects

Farooqi

Akram

Begum

et al. 2021

Journal of Hazardous Materials

118

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“…The current is generated by cathode polarization due to the shift of LCPGE electrode potential away from the equilibrium (over potential). This will lead to the electrochemical reduction of Cr +6 to Cr +3 and is severely proportional to the current density and the rate of reaction (Sun et al, 2015). Initially the Cr +6 to Cr +3 reduction is fast as shown in Fig.…”

Section: Lcpge As Electrodes In Microbial Fuel Cellsmentioning

confidence: 97%

Liquid crystal polaroid glass electrode from e-waste for synchronized removal/recovery of Cr +6 from wastewater by microbial fuel cell

Gangadharan

Nambi

Senthilnathan

2015

Bioresource Technology

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“…Another study emphasized that hydrogen sulfide gas’s actual gas flow at the landfill is different from the study [ 129 ]. Because of this, the actual scale of H 2 S gas elimination should be studied further in actual condition as well as its efficiency as compared to typical approaches such as electrochemical precipitation [ 130 ], ion exchange [ 131 ], membrane separation [ 132 ], and typical adsorption [ 133 , 134 ].…”

Section: Other Applicationsmentioning

confidence: 99%

Waste Mineral Wool and Its Opportunities—A Review

et al. 2021

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Massive waste rock wool was generated globally and it caused substantial environmental issues such as landfill and leaching. However, reviews on the recyclability of waste rock wool are scarce. Therefore, this study presents an in-depth review of the characterization and potential usability of waste rock wool. Waste rock wool can be characterized based on its physical properties, chemical composition, and types of contaminants. The review showed that waste rock wool from the manufacturing process is more workable to be recycled for further application than the post-consumer due to its high purity. It also revealed that the pre-treatment method—comminution is vital for achieving mixture homogeneity and enhancing the properties of recycled products. The potential application of waste rock wool is reviewed with key results emphasized to demonstrate the practicality and commercial viability of each option. With a high content of chemically inert compounds such as silicon dioxide (SiO2), calcium oxide (CaO), and aluminum oxide (Al2O3) that improve fire resistance properties, waste rock wool is mainly repurposed as fillers in composite material for construction and building materials. Furthermore, waste rock wool is potentially utilized as an oil, water pollutant, and gas absorbent. To sum up, waste rock wool could be feasibly recycled as a composite material enhancer and utilized as an absorbent for a greener environment.

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Electrochemically enhanced reduction of hexavalent chromium in contaminated clay: Kinetics, energy consumption, and application of pulse current

Cited by 27 publications

References 33 publications

Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects

Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects

Liquid crystal polaroid glass electrode from e-waste for synchronized removal/recovery of Cr +6 from wastewater by microbial fuel cell

Waste Mineral Wool and Its Opportunities—A Review

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