Phenol removal using zero-valent iron powder in the presence of dissolved oxygen: Roles of decomposition by the Fenton reaction and adsorption/precipitation

Shimizu, Ayana; Tokumura, Masahiro; Nakajima, Koshiro; Kawase, Y.

doi:10.1016/j.jhazmat.2011.11.009

Cited by 147 publications

(75 citation statements)

References 32 publications

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“…The slower rate of degradation at lower pH is also due to the excess H + ions present in the solution acting as • OH scavenger according to reaction (Eq. 18) (Devi et al 2009 (Shimizu et al 2012).…”

Section: Effect Of Phmentioning

confidence: 99%

“…In order to avoid these disadvantages, zero valent iron (ZVI) has appeared as an effective heterogeneous catalyst for wastewater treatment. ZVI and other iron based catalysts were used inter alia for the treatment of dye (Chang et al 2006, Devi et al 2009, Grcic et al 2012, Moon et al 2011, Weng et al 2013, Zhang et al 2014, Yang et al 2015a, Yang et al 2015b, nitrobenzene (Dong et al 2010), 2,4-dinitroanisole (Shen et al 2013), pharmaceutical compounds (Bautitz et al 2012, Segura et al 2013, TNT wastewater (Barreto-Rodrigues et al 2009), phenols and chlorophenols (Kim et al 2011, Shimizu et al 2012, pesticides (Fjordboge et al 2013), BPA (Xi et al 2014) or coking wastewater (Lai et al 2007), palm oil mill effl uent (Taha and Ibrahim 2014), nitrites reduction (Fatemina et al 2013, Suzuki et al 2012, oil sands reclamation (Pourrezaei et al 2014), and surfactants removal (Martins et al 2014). …”

mentioning

confidence: 99%

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Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2O2 processes

Bogacki¹,

Al‐Hazmi²

2017

Archives of Environmental Protection

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Advanced automotive fleet repair facility wastewater treatment was investigated with Zero-Valent Iron/Hydrogen Peroxide (Air/ZVI/H2O2) process for different process parameters: ZVI and H2O2doses, time, pH. The highest Chemical Oxygen Demand (COD) removal efficiency, 76%, was achieved for ZVI/H2O2doses 4000/1900 mg/L, 120 min process time, pH 3.0. COD decreased from 933 to 227 mg/L. In optimal process conditions odor and color were also completely removed. COD removal efficiency was increasing with ZVI dose. Change pH value below and over 3.0 causes a rapid decrease in the treatment effectiveness. The Air/ZVI/H2O2process kinetics can be described as d[COD]/dt = −a [COD]tm, where ‘t’ corresponds with time and ‘a’ and ‘m’ are constants that depend on the initial reagent concentrations. H2O2influence on process effect was assessed. COD removal could be up to 40% (560 mg/L) for Air/ZVI process. The FeCl3coagulation effect was also evaluated. The best coagulation results were obtained for 700 mg/L Fe3+dose, that was slightly higher than dissolved Fe used in ZVI/H2O2process. COD was decreased to 509 mg/L.

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Section: Effect Of Phmentioning

confidence: 99%

mentioning

confidence: 99%

Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2O2 processes

Bogacki¹,

Al‐Hazmi²

2017

Archives of Environmental Protection

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“…Experiment was carried out inside BOD incubator with constant temperature set at 30°C and kept for shaking at 200 rpm for thorough dispersal of nZVI in solution. pH was maintained at of 7 ± 0.1 throughout so as to prevent any degradation arising from generation of OH radicle, since lower pH favors the formation of reactive OH radicle through Fenton's reagent (Shimizu et al 2012;Anotai et al 2006). Another flask containing equal concentration of aniline subjected to similar conditions but devoid of nZVI was kept as control to determine loss of aniline if any through evaporation, auto-degradation or photodegradation.…”

Section: Aniline Adsorption Onto Nzvi In Distilled Watermentioning

confidence: 99%

“…(Zhang 2003;Qiu et al 2013;Lin et al 2008;Li et al 2010;Madhavi et al 2013;Prabu et al 2016;Liang et al 2014;Yuan and Lien 2006;Vernon and Bonzongo 2014). And also many organic compounds like phenol and 4-chloro-2-nitrophenol have been shown to get removed by adsorption onto nZVI (Boparai et al 2011;Shimizu et al 2012;Adami and Fakhri 2013). The mechanism involves under aerobic conditions a shell of FeO(OH) layer is formed on nZVI surface which increases the affinity for adsorption (Buddhika et al 2011;Greenlee et al 2012;Eagleson 1994).…”

Section: Introductionmentioning

confidence: 99%

Enhanced removal of dissolved aniline from water under combined system of nano zero-valent iron and Pseudomonas putida

Bose

Dey

Saha

et al. 2016

Sustain. Water Resour. Manag.

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Aniline is a toxic chemical released by many industries. Removal of pollutants by micro-organisms is the most recent area of research whereas nano zero valent iron (nZVI) in recent time has been widely used in treatment of groundwater. The present study aims to understand the nature of interaction of nZVI with bacteria and removal of aniline under a combined system of bacteria and nZVI. nZVI were synthesized through conventional process and its adsorption studies on aniline removal were performed. Pseudomonas putida MTCC 1194 strain was acclimatized to aniline in Basal salt medium for a period of 2 months. The maximum growth rate and yield coefficient of cells were determined and within 6 h 99 % removal of 200 ppm aniline was found to be achieved. Adsorption studies were performed using nZVI of different concentration on 200 ppm aniline for 6 h. Maximum aniline removal was obtained at 85 % in distilled water and 92 % in basal salt medium, respectively using 5 g/L nZVI. nZVI was found to be growth inducer to the mentioned strain. A combined system of aniline removal was studied consisting of biodegradation and adsorption to nZVI in which 99 % aniline removal was obtained in 2.5 h containing 61 % of aniline removal through biodegradation and the rest through collective adsorption and biosorption. Maximum adsorption to nZVI was found during the lag phase of cell growth and on reaching log phase adsorption rate declined and removal through biodegradation dominated.

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“…It is therefore necessary to increase the initial pH of the raw water to 3-3.5 to achieve an effective heterogeneous Fenton reaction. Shimizu et al (2012) reported a large reduction in total organic carbon at a pH of 3 for decomposition of phenol using 75-μm iron powder. In this research, we used 150-μm iron powder, which gave effective decolorization and decreased the COD (Martins et al, 2012).…”

Section: Determination Of Optimum Treatment Conditionsmentioning

confidence: 99%

Decolorization of Secondary Effluent from Piggery Wastewater by Fenton Reaction Using Iron Powder

Harada¹,

Shiomichi²,

Ueshima³

et al. 2012

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A Fenton reaction using 150-μm iron powder for treating activated sludge from livestock-raising wastewater resulted in significant decreases in chromaticity and chemical oxygen demand. The optimum weight ratio of H 2 O 2 /Fe(0) was 0.3, and the optimum initial pH and the optimum reaction time were 3.5 and 30 mins. Under these optimum conditions, the removal ratios of chemical oxygen demand and the chromaticity of the supernatant after polymer coagulant addition and precipitation of the sludge in a continuous miniplant experiment were 86% and 84%, respectively.

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Phenol removal using zero-valent iron powder in the presence of dissolved oxygen: Roles of decomposition by the Fenton reaction and adsorption/precipitation

Cited by 147 publications

References 32 publications

Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2O2 processes

Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2O2 processes

Enhanced removal of dissolved aniline from water under combined system of nano zero-valent iron and Pseudomonas putida

Decolorization of Secondary Effluent from Piggery Wastewater by Fenton Reaction Using Iron Powder

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