Fenton treatment efficacy for the purification of different kinds of wastewater

Trapido, Marina; Kulik, Niina; Goi, Anna; Veressinina, Yelena; Munter, Rein

doi:10.2166/wst.2009.585

Cited by 36 publications

(15 citation statements)

References 13 publications

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“…From the results observed from here, the optimum operating conditions for the Fenton oxidation of NL6 would be H 2 O 2 /COD = 1.5. The optimum ratio of H 2 O 2 /COD concentrations at 1.5 is close to that (around 2) obtained in the previous studies by the authors [12,13] despite the difference in the properties of wastewaters.…”

Section: Fenton Process 1-stepsupporting

confidence: 88%

“…Similar conclusions were presented by Canizares and others [18]. According to their research these high concentrations of refractory carbon also appear in the Fenton oxidation of other kind of aqueous wastes [13] and seem to be characteristic of this oxidation process.…”

Section: Fenton Process 1-stepsupporting

confidence: 88%

“…This AOP has been largely studied and good efficiency is reported for the treatment of wastewaters polluted with different organics [8,9]. Fenton reaction was also successfully applied to wastewater consisted only of surfactants [10,11] as well as to real effluents from different resources like chemical or pharmaceutical manufacturers [12,13]. It should be mentioned that complete mineralization is usually not a final goal in either water or wastewater treatment.…”

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confidence: 99%

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Combined Chemical-Biological Treatment of Effluents from Soil Remediation Processes by Surfactants Solutions Flushing

Hallmann¹,

Tomczak-Wandzel²,

Mędrzycka³

2012

Ecological Chemistry and Engineering S

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Abstract:In recent years combined chemical-biological wastewater treatment processes have received increasing interest. In the present study wastewater from soil remediation processes were treated by means of 1-step processes like Fenton, aerobic degradation and 2-steps combined method. The effluents resulting from soil remediation processes consist of high surfactant concentration solutions, mobilized oils and oil-in-water (o/w) emulsions. The effectiveness of wastewater treatment was evaluated by COD reduction and surfactant removal. The application of Fenton process alone showed around 80% of COD and surfactant removal, and in case of aerobic process only 60% of COD and 50% of surfactant removal was accomplished. However, the maximum COD reduction and surfactant removal from wastewater samples, above 90%, was obtained in aerobic degradation with Fenton process as pretreatment. Thus, the Fenton process could be effectively applied as a pretreatment step to improve the reduction of both COD and surfactant from wastewater resulting from soil remediation.

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Section: Fenton Process 1-stepsupporting

confidence: 88%

Section: Fenton Process 1-stepsupporting

confidence: 88%

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confidence: 99%

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Combined Chemical-Biological Treatment of Effluents from Soil Remediation Processes by Surfactants Solutions Flushing

Hallmann¹,

Tomczak-Wandzel²,

Mędrzycka³

2012

Ecological Chemistry and Engineering S

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“…Fenton system efficiency depends on both H 2 O 2 and Fe (II) dosages, concentration and properties of effluent organic matter as well as on the solution pH [78], which should be kept in the acid range. In combination with UV-vis light, oxidation rates are strongly increased, likely due to the photolysis of iron aqua complex (Fe(OH) 2+ ) providing a new importance source of hydroxyl radicals [79].…”

Section: Fenton-like Reactionmentioning

confidence: 99%

Removal of Endocrine Disruptors from Urban Wastewater by Advanced Oxidation Processes (AOPs): A Review

Cesaro¹,

Belgıorno²

2016

TOBIOTJ

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Abstract:Over the last years the growing presence of endocrine disrupting compounds in the environment has been regarded as a serious sanitary issue. The more and more frequent detection of these compounds in the effluents of wastewater treatment plants poses the risk associated to their persistence into the aquatic systems as well as to their adverse effects on both public health and environment.As conventional systems do not allow their efficient removal, great attention has been raised towards their possible treatment by Advanced Oxidation Processes (AOPs). They rely on the action of hydroxyl radicals, which are highly reactive species, able to oxidize recalcitrant and non-biodegradable pollutants.AOPs can either provide contaminant partial degradation or their complete removal. As their effectiveness has been proved for a wide spectrum of both organic and inorganic pollutants, they are considered a suitable option for the treatment of contaminated aqueous media, especially when combined with conventional biological processes.This paper aims at reviewing main AOPs for the removal of endocrine disruptors, in order to highlight the most important features of different technologies, thus providing their comparative assessment. To this end, a brief overview of the most frequently detected endocrine disruptor compounds was also discussed, in order to clarify their fate into the environment as well as the contamination pathways of greatest concern for human health.

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“…w/w/w of 1/1/0.2 and 1/2/0.4), which proved effective in industrial wastewater treatment (Trapido et al 2009), were chosen. The results (Fig.…”

Section: Fenton Treatmentmentioning

confidence: 99%

Combined methods for the treatment of a typical hardwood soaking basin wastewater from plywood industry

Klauson

Klein

Kivi

et al. 2015

Int. J. Environ. Sci. Technol.

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In this research, various combinations of physicochemical (coagulation, Fenton process and ozonation) and biological (aerobic oxidation) treatment methods were used to purify wastewater originating from wood soaking basins in plywood production industry. Although the wastewater has good biodegradability (92 %), there is a high fraction of organic material expressed as recalcitrant chemical oxygen demand (COD) of approximately 360 mg L -1 . High fraction of organics is caused by woodoriginating water-soluble material, i.e. extractives, including lignin and tannins. It was found that optimal treatment method for hardwood soaking basin wastewater is the combination of biological pre-treatment, chemical treatment with Fenton reagent and biological post-treatment. Under optimal conditions of combined process performance, up to 99 % removal of the organic loads, nitrogen and phenols was achieved. Besides achieving target discharge limits stated for industrial wastewater, the effluent met the requirements set for municipal wastewater treatment plants, making the treated water acceptable for subsequent discharge into natural water bodies: treated water COD = 90 ± 3 mg L -1 ; BOD 7 = 10 ± 1 mg L -1 . The main result of the present work was the establishment of sustainable, efficient and economically feasible process to treat the wastewater with minimised chemicals consumption. This differs considerably from approaches such as coagulation or wet oxidation, used to treat similar water types according to the literature, and is readily applicable for the production facilities of various scales, including small and medium enterprises, without the need to make changes in existing technological schemes.

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Fenton treatment efficacy for the purification of different kinds of wastewater

Cited by 36 publications

References 13 publications

Combined Chemical-Biological Treatment of Effluents from Soil Remediation Processes by Surfactants Solutions Flushing

Combined Chemical-Biological Treatment of Effluents from Soil Remediation Processes by Surfactants Solutions Flushing

Removal of Endocrine Disruptors from Urban Wastewater by Advanced Oxidation Processes (AOPs): A Review

Combined methods for the treatment of a typical hardwood soaking basin wastewater from plywood industry

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