2022
DOI: 10.1016/j.scitotenv.2021.152300
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Removal of nitrate from groundwater by nano-scale zero-valent iron injection pulses in continuous-flow packed soil columns

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Cited by 27 publications
(4 citation statements)
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“…The EDS analysis of AZVI depicted in Figure S2 indicated that it comprised predominantly Fe (86.6%) and O (13.4%) elements, with Fe primarily located in the Fe 0 core and O in the outer oxide shell, in accordance with other reported crystalline ZVI. 37,38 The chemical composition of the iron oxide shell is strongly related to the synthetic method and generally includes FeO, magnetite, and hematite. 39 Considering this, we conducted XRD to analyze the phase composition of AZVI.…”
Section: ■ Experimental Sectionmentioning
confidence: 99%
“…The EDS analysis of AZVI depicted in Figure S2 indicated that it comprised predominantly Fe (86.6%) and O (13.4%) elements, with Fe primarily located in the Fe 0 core and O in the outer oxide shell, in accordance with other reported crystalline ZVI. 37,38 The chemical composition of the iron oxide shell is strongly related to the synthetic method and generally includes FeO, magnetite, and hematite. 39 Considering this, we conducted XRD to analyze the phase composition of AZVI.…”
Section: ■ Experimental Sectionmentioning
confidence: 99%
“…In recent years, great attention has been paid to the nanoscale zero-valent iron (NZVI) due to its remarkable reactivity with a range of pollutants, including organic compounds, 1 nitrates, 2,3 and heavy metal ions. 4 However, the application of NZVI is limited by the disadvantages of easy passivation and poor selectivity.…”
Section: Introductionmentioning
confidence: 99%
“…Chemical methods to remove NO 3 − and PO 4 3− are based on the reaction between a number of iron and aluminum salts with NO 3 − and PO 4 3− to form insoluble precipitates that are easily removed from water [10][11][12][13][14]. Other chemical techniques to remove NO 3 − are involved in the chemical reduction of NO 3 − by chemical reductants, especially hydrazine [15], sodium sulfite [16][17][18], zero-valent metal [19][20][21][22][23], and hydrogen [24,25]. Physical technologies have also been used, such as the adsorption of NO 3…”
Section: Introductionmentioning
confidence: 99%