Integration of treatment technologies with Fenton reagent for laboratory effluent remediation

Pereira, Chrystopher A.M.; Brito, Núbia Natália de

doi:10.4136/ambi-agua.2243

Cited by 7 publications

(4 citation statements)

References 5 publications

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“…The residual iron after the process was between 4.6 to 5.8 mg Fe.L -1 . Pereira and Brito (2018) obtained, at the end of the treatment process for the removal of laboratory effluents, the concentration of residual total soluble iron was 6.40 mg.L -1 . In Figure 6, it is possible to see the difference between the synthetic effluent after the treatment, with a color change due to the presence of the sludge containing the iron, and after it is filtered with a 0.45 µm PTFE filter.…”

Section: Total Iron Residualmentioning

confidence: 96%

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Ibuprophen Removal from Synthetic Effluents Using Electrocoagulation-Peroxidation (ECP)

Behling¹,

Luz²,

Pasquali³

et al. 2021

Preprint

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Concerning water resources, several ordinances and legislation determine standards and conditions for the discharge of effluents into water bodies. However, several contaminants are not covered by these guidelines because they are found in low concentrations and due to little knowledge of their long-term effects. These contaminants are called emergents, and this category includes drugs, such as anti-inflammatory drugs. The electrocoagulation process associated with advanced oxidation comes up as an alternative to conventional effluent treatment processes, and the objective of this work was to evaluate this process using scrap iron as sacrificial electrodes in the treatment of synthetic effluents containing Ibuprofen. High performance liquid chromatography (HPLC) was used to quantify the drug in synthetic effluents. The CCRD 24 was used in an experimental design, having as independent variables evaluated the concentration of contaminants, applied current, the concentration of the primary oxidizing agent H2O2 and the reaction time. The optimized conditions determined by statistical analysis were drug concentration of 5 mg.L-1, H2O2 concentration of 200 mg.L-1, current of 5 A and 150 min. The removals obtained under these conditions were higher than 92% in the aqueous phase, showing that ECP technique has the potential to treat contaminants such as drugs present in effluents and waters.

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Section: Total Iron Residualmentioning

confidence: 96%

“…(2020) obtained the greatest removal of Ibuprofen with the optimized values of 110 min and 2 A and drug concentration of 40 ppm. The treatment is enhanced with the addition of H2O2, allowing greater removal of the contaminant in a shorter time (Pereira et al 2018).…”

Section: Global Desirabilitymentioning

confidence: 99%

Ibuprophen Removal from Synthetic Effluents Using Electrocoagulation-Peroxidation (ECP)

Behling¹,

Luz²,

Pasquali³

et al. 2021

Preprint

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“…The parameters of treatment time and rotation, as well as the range of initial concentrations of chemical reagents were used for the treatment technology (Fenton´s reagent). It were also based on the values of the parameters used in Pereira and Brito (2018) Morais and Brito (2015), Ma and Xia (2009), and in the wastewater treatment station of Goiânia-GO.…”

Section: Effluent Characterizationmentioning

confidence: 99%

Cosmetic wastewater primary treatment by fenton process and final polishing adsorption

Pereira

Ferreira

Brito

et al. 2022

REGET

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This work aimed to integrate two wastewater treatment technologies, Fenton process as the primary treatment and adsorption aiming achieve maximum removal efficiency and adequation to the environmental and water legislations. Wastewater from a cosmetics industry plant in the metropolitan area of Goiânia (Brazil) was the object of this research. It was analysed environmental parameters as absorbance, total iron, chemical oxygen demand, pH, total phenols, conductivity, H2O2, dissolved oxygen, turbidity, and total solids. They were analyzed in between processes at all stages. The effects of Fe2+ (18.42-257.89 mg L-1) and H2O2 (500-2300 mg L-1) concentrations and pH values (3.00-5.50) were studied for the Fenton process treatment. In adsorption, the activated carbon was characterized by infrared spectroscopy, elemental analysis, adsorption and desorption of N2 and thermogravimetry (TG/DTA). The effect of the contact time (4min-24h) and of the temperature variation in the system 20-60 °C were studied. By integrating the two technologies, a satisfactory removal rate was achieved for the analyzed parameters in the total time of treatment of 82 minutes

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“…Similar experiments were performed by Maharaj et al [7] with synthetic wastewater and observed a maximum COD reduction of 70% at the reaction time of 360 min. Studies were conducted by Perica et al [16] on heterogeneous Fenton in the removal of COD and observed 75% COD removal at 400 min.…”

Section: Fenton Processmentioning

confidence: 99%

Sequential Treatment of Landfill Leachate By Advanced Oxidation Processes and Struvite Precipitation

lavudya

vodnala

Dheeravath

et al. 2021

Preprint

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Landfill leachate contains organic, inorganic compounds, heavy metals, ammonia, and xenobiotic compounds which are considered unsafe for discharging into surface water which requires to be treated before its discharge into the water. In this paper, preliminary studies are reported on the application of Fenton, Struvite, and Electrooxidation processes for the removal of Chemical Oxygen Demand (COD) and ammonia from landfill leachate. Various operational parameters like pH, dosage, reaction time, and applied voltage were optimized in laboratory batch experiments and evaluated for removal of COD and ammonia. Results demonstrated that the Fenton process could effectively remove COD and ammonia by 75% and 23% respectively at 210 min for Fe+2:H2O2: 1:5 at a fixed pH 3. The Struvite process has been effective in the removal of ammonia by 74% at pH 9 with the dosage of Mg+2:PO43-:NH4+ at 1:1:1 ratio. Results from Electrooxidation for COD and ammonia were observed as 58.25% and 44% respectively at the applied voltage 8 V for a reaction time of 60 min. The efficiency of treatment processes was also evaluated in Sequential processes for COD and ammonia i.e., Sequence-I (Fenton-Electrooxidation-Struvite) and Sequence-II (Fenton-Struvite) at pre-optimized conditions. The sequential processes have been depicted, the removal efficiencies of COD and ammonia of 89% and 82% by Sequence-I; 76.77%, and 77% by Sequence-II respectively. The present study demonstrates that Fenton followed by Electrooxidation and Struvite is an effective treatment process that can enhance the treatment of landfill leachate.

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Integration of treatment technologies with Fenton reagent for laboratory effluent remediation

Cited by 7 publications

References 5 publications

Ibuprophen Removal from Synthetic Effluents Using Electrocoagulation-Peroxidation (ECP)

Ibuprophen Removal from Synthetic Effluents Using Electrocoagulation-Peroxidation (ECP)

Cosmetic wastewater primary treatment by fenton process and final polishing adsorption

Sequential Treatment of Landfill Leachate By Advanced Oxidation Processes and Struvite Precipitation

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