Zero valent iron reduces toxicity and concentrations of organophosphate pesticides in contaminated groundwater

Fjordbøge, Annika Sidelmann; Baun, Anders; Vastrup, Troels; Kjeldsen, Peter

doi:10.1016/j.chemosphere.2012.08.058

Cited by 30 publications

(7 citation statements)

References 23 publications

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“…In recent years, an emerging technology, nano zerovalent iron (NZVI) reduction technology, has aroused more and more attention on dye waste water treatment. Up to now, NZVI had been proved to be effective for degradation of a wide range of pollutants, such as chlorinated organic compounds [9], brominated organic compounds [10,11], nature organic matter (NOM) [12], organophosphate pesticides [13], estrogens [14], metronidazole [15,16], dyes [17], and heavy metals (including arsenic, chrome, mercury, and lead, etc.) [18][19][20][21][22][23] in groundwater, surface water or soil, due to its huge specific surface area, high reactivity, and relatively low price.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and reactivity of cellulose modified nano zero-valent iron for dye discoloration

Wang

et al. 2015

Applied Surface Science

103

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Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and reactivity of cellulose modified nano zero-valent iron for dye discoloration

Wang

et al. 2015

Applied Surface Science

103

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“…Recently, nano-scale zero valent iron (NZVI) has drawn more and more attention for the treatment of wastewater containing pesticides, 22 dyes, 23 and especially halogenated compounds. 24 Most of the researches is basing on the high reducibility of the NZVI, resulting the cleavage of azo band of azo dyes and dehalogenation of halogenated 25 However, as for dehalogenation of halogenated organic compounds, several hours even several days were needed.…”

Section: Introductionmentioning

confidence: 99%

Degradation of 2,4,6-Trichlorophenol Using Hydrogen Peroxide Catalyzed by Nanoscale Zero-Valent Iron Supported on Ion Exchange Resin

Tai

She

Yin

et al. 2016

j nanosci nanotechnol

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Nanoscale zero-valent iron (NZVI) supported on ion exchange resin was prepared and characterized by scanning electron microscope and energy dispersive spectroscopy, with a simple model developed for describing the catalyst. The degradation of 2,4,6-trichlorophenol (2,4,6-TCP) by hydrogen peroxide using NZVI supported on ion exchange resin as the catalyst, was studied. The results showed that 2,4,6-TCP with a concentration of 1 mmol L −1 could be well degraded into low molecule weight organic acids in two hours. The optimized condition was as follows: pH, 3.0; temperature, 35 C; catalyst dosage, 1.5 g; and hydrogen peroxide, 0.16 mmol L −1 . The catalyst has good reusability, with no catalytic efficiency decreasing even after ten times recycles. A possible mechanism of 2,4,6-TCP degradation was proposed, based on the products indentified by GC-MS after derived using trimethylsulfonium hydroxide.

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“…AOPs, such as the Fenton process and its modifications, proved to be very effective in various wastewater treatments [19]. Metallic iron and other iron-based catalysts were used, interalia, for the treatment of pharmaceuticals [20,21], trinitrotoluene (TNT) wastewater [22], phenols and chlorophenols [23,24], pesticides [25], bisphenol A (BPA) [26], landfill leachate [27] or coking wastewater [28], palm oil mill effluent [29], nitrite reduction [30], oil sands reclamation [31], surfactant removal [32], and hydraulic fracturing flow back fluid treatment [33].…”

Section: Introductionmentioning

confidence: 99%

Alternative Approach to Current EU BAT Recommendation for Coal-Fired Power Plant Flue Gas Desulfurization Wastewater Treatment

et al. 2018

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Fossil fuel combustion is a serious environmental problem. Significant quantities of flue gasses and wastewater, requiring further treatment, are produced. This article compares three wet flue gas desulfurization (FGD) wastewater treatment methods: coagulation with precipitation using iron(III) ions-recommended by the European Union as the best available technique (BAT)-and two alternative advanced oxidation processes (Fe 2+ /H 2 O 2 and Fe 0 /H 2 O 2 ). Both oxidation processes that were used met the technical FGD wastewater treatment requirements of the BAT. The best treatment effects, expressed as pollutants' removal, were obtained for the Fe 2+ /H 2 O 2 process for 150/300 mg/L reagent doses. It allows effective removal of boron up to 212 mg/L and heavy metals up to below the detection limit <0.010 mg/L for Pb and <0.005 mg/L for Cu. Therefore, the Fe 2+ /H 2 O 2 process could be an option for FGD wastewater treatment as an alternative to the BAT recommended iron(III)-based coagulation with precipitation. Additionally, an analysis of variance was applied to check the significance of the two independent variables and their interactions. Statistical analysis confirmed high efficiency and applicability of treatment process.

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Zero valent iron reduces toxicity and concentrations of organophosphate pesticides in contaminated groundwater

Cited by 30 publications

References 23 publications

Synthesis, characterization, and reactivity of cellulose modified nano zero-valent iron for dye discoloration

Synthesis, characterization, and reactivity of cellulose modified nano zero-valent iron for dye discoloration

Degradation of 2,4,6-Trichlorophenol Using Hydrogen Peroxide Catalyzed by Nanoscale Zero-Valent Iron Supported on Ion Exchange Resin

Alternative Approach to Current EU BAT Recommendation for Coal-Fired Power Plant Flue Gas Desulfurization Wastewater Treatment

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