Electrocoagulation-flotation for orange II dye removal: Kinetics, costs, and process variables effects

Signorelli, Sofia Caroline Moraes; Costa, Josiel Martins; Neto, Ambrósio Florêncio de Almeida

doi:10.1016/j.jece.2021.106157

Cited by 42 publications

(15 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This combination of EC and other treatment technologies assists the treatment process of different types wastewater containing COD. The same conclusions were provided by [29,37,[49][50][51][52][53], where EC is combined with anodic oxidation, electrooxidation, electro-Fenton, flotation, electrooxidation, ozonation, and peroxone, respectively, to eliminate organic and inorganic pollutants from wastewater.…”

Section: Ect In Hybrid Systemssupporting

confidence: 54%

“…Lia et al [49] planned and built a unique incorporated system of electrocoagulation (EC)-carbon membrane coupling with electrochemical anodic oxidation (CM/EAO) for the treatment of oily wastewater. Electrocoagulation was taken as an essential unit, and the impacts of numerous boundaries, including current density, electrolyte focus, initial pH, feed oil content, and work time on the pretreatment performance, were examined and enhanced.…”

Section: Ect In Hybrid Systemsmentioning

confidence: 99%

“…The oil removal efficiency was 87.18 %. The most suitable values of the operational parameters were 2.0 mA/cm 2 of current density, 0.5 g/L NaCl, neutral pH, stirring speed of 250 rpm, and 60 min [49].…”

Section: Ect In Hybrid Systemsmentioning

confidence: 99%

See 2 more Smart Citations

Treatment of oily wastewater by electrocoagulation technology: A general review (2018-2022)

Jasim¹,

AlJaberi²

2022

J. Electrochem. Sci. Eng.

View full text Add to dashboard Cite

A huge amount of oily wastewater is discharged annually from several industries like petroleum and petrochemical factories. Scientists and researchers are permanently concentrated on creating conventional technologies or identifying novel treatment options for oily wastewaters, since they need to be treated before being discharged into the soil and aquatic ecosystems. Electrocoagulation technology (ECT) is an electrochemical method employed to remove numerous pollutants from domestic and industrial wastewaters. This paper aims to review the recently published articles from 2018 to 2022 concerned with ECT for oily wastewater remediation. Based on the present review, it is obvious that ECT is strongly dependent on the value of electric current or voltage applied to provide the required amounts of electro-coagulants for efficient remediation, reaction time duration for the generation of electro-coagulants and pollutants elimination, and electrode configuration such as shape, type of metal, and distance between electrodes. Other operating parameters include solution pH (since some pollutants are removed based on their cationic or anionic nature), type of electrolyte which affects the electric conductivity and ohmic drop and stirring speed that may influence the contact among numerous ions throughout the EC reactor. The core findings show that the ECT is highly effective, eco-friendly, and cost-effective in eliminating organic and inorganic pollutants from oily wastewater.

show abstract

Section: Ect In Hybrid Systemssupporting

confidence: 54%

Section: Ect In Hybrid Systemsmentioning

confidence: 99%

See 1 more Smart Citation

Treatment of oily wastewater by electrocoagulation technology: A general review (2018-2022)

Jasim¹,

AlJaberi²

2022

J. Electrochem. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…There are different technologies for removing dyes from textile wastewater, such as membrane (Januário et al, 2022), electrocoagulation (Signorelli et al, 2021), photocatalytic (You et al, 2022), and adsorption (Sachdev et al, 2022;Zhang et al, 2020). The adsorption process is suitable for its simplicity, effectivness, efficiency, and low cost.…”

Section: Introductionmentioning

confidence: 99%

Selectivity of Malachite Green on Cationic Dye Mixtures Toward Adsorption on Magnetite Humic Acid

Ahmad¹,

Arsyad²,

Royani³

et al. 2022

Environ. Nat. Resour. J.

View full text Add to dashboard Cite

Magnetite humic acid (MHA) was successfully synthesized by the coprecipitation method followed by hydrothermal process, as evidenced by the XRD, FTIR, VSM, and SEM analysis characterization results. XRD diffraction shows diffraction peaks at 2θ=21.53º, 35.95º, and 57.93º. The FTIR spectra have a typical absorption at 3,410, 1,589, 1,396, 1,026, 910, 794, and 540 cm-1. Magnetite humic acid was paramagnetic with magnetization (Ms) 17.04 emu/g. Humic acid and magnetite humic acid have an irregular structure; the morphology of magnetite humic acid is smoother than humic acid. Malachite green was more selective than methylene blue and rhodamine B on magnetite humic acid. The adsorption of malachite green on humic acid and magnetite humic acid was carried out at pHpzc 8.06 and 6.08. The adsorption capacity (Qmax) of humic acid (77.519 mg/g) and magnetite humic acid (169.492 mg/g) were found with pseudo-second-order kinetic and Langmuir isotherm models. After five regeneration cycles, the adsorption percentages of malachite green with humic acid and magnetite humic acid ranged from 94.67-61.37% and 62.03-21.11%, respectively. Magnetite humic acid has high stability and reusability. The good regeneration of MHA was supported by the XRD diffractogram. Magnetic properties in the material simplify the adsorption process and minimize the potential for damage to the surface of the material.

show abstract

“…Annually, approximately 1,000,000 tons of dyes are consumed worldwide by tanneries and by the food, cosmetic, textile, and medicinal sectors from which 50% is discharged to water [6]. Due to their synthetic origin and complex structure they present a high stability a low biodegradability, and they tend to accumulate on the surface of the water [7,8]. As a Materials 2022, 15, 8760 2 of 16 result, less sunlight can penetrate the water, increasing its turbidity, which could produce the death of aquatic life due to the low oxygen released into the water by the photosynthesis of the algae.…”

Section: Introductionmentioning

confidence: 99%

Cross-Linked Carboxymethylcellulose Adsorbtion Membranes from Ziziphus lotus for the Removal of Organic Dye Pollutants

et al. 2022

View full text Add to dashboard Cite

The goal of this study is to assess Ziziphus lotus’s potential for producing carboxymethylcellulose adsorption membranes with the ability to adsorb methyl green from wastewaters by the revalorization of its cellulosic fraction. The cellulose from this feedstock was extracted by an alkaline process and TAPPI standard technique T 203 cm-99 and afterwards they were carboxymethylated. The obtained carboxymethylcelluloses were deeply characterized, being observed that the carboxymethylcellulose produced from the alkaline cellulose presented the higher solubility due to its lower crystallinity degree (53.31 vs. 59.4%) and its higher substitution degree (0.85 vs. 0.74). This carboxymethylcellulose was cross-linked with citric acid in an aqueous treatment in order to form an adsorption membrane. The citric acid provided rigidity to the membrane and although it was hydrophilic it was not soluble in water. By evaluating the potential of the produced membrane for the removal of pollutant dyes from wastewater, it was observed that the adsorption membrane prepared from the carboxymethylcellulose’s produced from the Ziziphus lotus was able to remove 99% of the dye, methyl green, present in the wastewater. Thus, this work demonstrates the potential of the Ziziphus lotus for the production of a novel and cost-effective carboxymethylcellulose adsorption membrane with high capacity to treat wastewaters.

show abstract

Electrocoagulation-flotation for orange II dye removal: Kinetics, costs, and process variables effects

Cited by 42 publications

References 44 publications

Treatment of oily wastewater by electrocoagulation technology: A general review (2018-2022)

Treatment of oily wastewater by electrocoagulation technology: A general review (2018-2022)

Selectivity of Malachite Green on Cationic Dye Mixtures Toward Adsorption on Magnetite Humic Acid

Cross-Linked Carboxymethylcellulose Adsorbtion Membranes from Ziziphus lotus for the Removal of Organic Dye Pollutants

Contact Info

Product

Resources

About