Effects of reaction conditions on nuclear laundry water treatment in Fenton process

Miia Vilve; Arja Hirvonen; Mika Sillanpää

doi:10.1016/j.jhazmat.2008.09.058

Effects of reaction conditions on nuclear laundry water treatment in Fenton process

Miia Vilve, Arja Hirvonen, Mika Sillanpää

University of Eastern Finland

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

This study presents the efficiency of Fenton process in the degradation of organic compounds of nuclear laundry water. The influence of Fe²⁺ and hydrogen peroxide ratio, hydrogen peroxide dose, pH and treatment time were investigated. The degradation of non-ionic surfactant and other organic compounds was analysed as COD, TOC and molecular weight distribution (MWD). The most cost-effective degradation conditions were at H₂O₂/Fe²⁺ stoichiometric molar ratio of 2 with 5 min mixing and H₂O₂ dose of 1000 mg l^-1. With the initial pH of 6, the reductions of COD and TOC were 85% and 69%, respectively. However, the removal of the organic compounds was mainly carried out by Fenton-based Fe³⁺ coagulation rather than Fenton oxidation. Fenton process proved to be much more efficient than previously performed ozone-based oxidation processes.

Original language	English
Pages (from-to)	1468-1473
Number of pages	6
Journal	Journal of Hazardous Materials
Volume	164
Issue number	2-3
DOIs	https://doi.org/10.1016/j.jhazmat.2008.09.058
Publication status	Published - 30 May 2009
Externally published	Yes

Keywords

Coagulation
Fenton process
Non-ionic surfactant
Wastewater
pH

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jhazmat.2008.09.058

Cite this

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abstract = "This study presents the efficiency of Fenton process in the degradation of organic compounds of nuclear laundry water. The influence of Fe2+ and hydrogen peroxide ratio, hydrogen peroxide dose, pH and treatment time were investigated. The degradation of non-ionic surfactant and other organic compounds was analysed as COD, TOC and molecular weight distribution (MWD). The most cost-effective degradation conditions were at H2O2/Fe2+ stoichiometric molar ratio of 2 with 5 min mixing and H2O2 dose of 1000 mg l-1. With the initial pH of 6, the reductions of COD and TOC were 85% and 69%, respectively. However, the removal of the organic compounds was mainly carried out by Fenton-based Fe3+ coagulation rather than Fenton oxidation. Fenton process proved to be much more efficient than previously performed ozone-based oxidation processes.",

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AU - Vilve, Miia

AU - Hirvonen, Arja

AU - Sillanpää, Mika

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Y1 - 2009/5/30

N2 - This study presents the efficiency of Fenton process in the degradation of organic compounds of nuclear laundry water. The influence of Fe2+ and hydrogen peroxide ratio, hydrogen peroxide dose, pH and treatment time were investigated. The degradation of non-ionic surfactant and other organic compounds was analysed as COD, TOC and molecular weight distribution (MWD). The most cost-effective degradation conditions were at H2O2/Fe2+ stoichiometric molar ratio of 2 with 5 min mixing and H2O2 dose of 1000 mg l-1. With the initial pH of 6, the reductions of COD and TOC were 85% and 69%, respectively. However, the removal of the organic compounds was mainly carried out by Fenton-based Fe3+ coagulation rather than Fenton oxidation. Fenton process proved to be much more efficient than previously performed ozone-based oxidation processes.

AB - This study presents the efficiency of Fenton process in the degradation of organic compounds of nuclear laundry water. The influence of Fe2+ and hydrogen peroxide ratio, hydrogen peroxide dose, pH and treatment time were investigated. The degradation of non-ionic surfactant and other organic compounds was analysed as COD, TOC and molecular weight distribution (MWD). The most cost-effective degradation conditions were at H2O2/Fe2+ stoichiometric molar ratio of 2 with 5 min mixing and H2O2 dose of 1000 mg l-1. With the initial pH of 6, the reductions of COD and TOC were 85% and 69%, respectively. However, the removal of the organic compounds was mainly carried out by Fenton-based Fe3+ coagulation rather than Fenton oxidation. Fenton process proved to be much more efficient than previously performed ozone-based oxidation processes.

KW - Coagulation

KW - Fenton process

KW - Non-ionic surfactant

KW - Wastewater

KW - pH

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Effects of reaction conditions on nuclear laundry water treatment in Fenton process

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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