Investigating the process of electrocoagulation in the removal of azo dye from synthetic textile effluents and the effects of acute toxicity on Daphnia magna test organisms

Lach, Carlos Eduardo; Pauli, Camila Schwarz; Coan, Aline Scheller; Simionatto, Edésio Luiz; Koslowski, Luciano André Deitos

doi:10.1016/j.jwpe.2021.102485

Cited by 35 publications

(16 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, Lach et al. 76 also investigated COD, TOC, and color removal of azo dye from the synthetic wastewater and also studied the acute toxicity. They investigated the effect of current ranging from 2–4 A, electrolyte concentration ranging from 2–4 g L −1 , and dye initial concentration from 0.05–0.10 g L −1 .…”

Section: Electrochemical Treatment Methods With Their Mechanisms and ...mentioning

confidence: 99%

See 1 more Smart Citation

Mechanism and Techno‐Economic Analysis of the Electrochemical Process

Ranga

Sinha

2023

ChemBioEng Reviews

View full text Add to dashboard Cite

The textile industry utilizes numerous chemicals ranging from solvents to resins and caustic soda to bleach, having a harsh environmental impact. A large amount of colored dye in wastewater is released. Non-biodegradable heavy metals and chlorine accumulate in organs of marine and terrestrial life, leading to various diseases. So, there is an urgent need to treat textile wastewater. Up to date, techno-economic analyses of all electrochemical processes have not been reviewed for textile wastewater treatment. In this review, the focus is on the tertiary treatment methods, mainly on electrochemical treatments, i.e., electrocoagulation, electro-Fenton, electrooxidation, photoelectrochemical (PEC) process, and solar electrophoto-Fenton process (SPEF) with their mechanisms and techno-economic analyses. SPEF treatment was found to be advantageous in terms of efficiency and economic perspective as it utilizes solar energy instead of electrical energy and the cost of the PEC process can also be recovered by the generation of hydrogen.

show abstract

Section: Electrochemical Treatment Methods With Their Mechanisms and ...mentioning

confidence: 99%

“…195, it is specified that surface modification of MMO anodes will make their efficiencies increase in organic substance degradation. Modification can be done by micro‐ and nanostructures that will enlarge the surface area and improve also the rate of reaction 76.…”

Section: Some Commonly Used Electrodes In Electrochemical Treatmentmentioning

confidence: 99%

Mechanism and Techno‐Economic Analysis of the Electrochemical Process

Ranga

Sinha

2023

ChemBioEng Reviews

View full text Add to dashboard Cite

show abstract

“…Figure 6 illustrates how the dark-colored structural modifications and abundant asymmetrical shacks in azo dye result in more lively adsorption sites. [71]. A closer look at the structure revealed that it had retained its black color long after magnetization.…”

Section: Sem Analysismentioning

confidence: 99%

Valorization of Annona reticulata biochar by chitosan for the adsorption of Azo dye from Textile effluent

2023

Global NEST: The International Journal

View full text Add to dashboard Cite

<p>Azo dye is a synthetic aromatic dye which are direct dye frequently used in textile industry to colour fibres. It also contributes to the damage of the environment. This study examines the adsorption biochar made from Annona reticulata to remove azo dye from textile wastewater. To improve the adsorption capacity, biochar valorized by chitosan molecules, Investigations were conducted on the use of chitosan-based materials that are acid-resistant for azo dye adsorption. In the batch experiment, basic operating parameters such as initial Azo dye concentrations, pH, contact time and bed height were assessed. The percentage removal efficiency for Azo dye was recorded as 67.18%, 75.88% and 94.37% for three dissimilar sized columns that were 6cm, 8cm, and 10cm. The UV–visible absorption spectroscopy was used to quantify the decolorization of dyes. The changed surface properties of the adsorbent produced from Annona reticulata were characterized by using SEM, XRD, and FTIR. The effectiveness of the column's adsorption was calculated mathematically by Yoon-Nelson, Thomas, and Adams-Bohart models. The model that best represents equilibrium isotherm data by adsorption had R2 values of 94.63, 86.67 and 96.35 respectively.</p>

show abstract

“…The porous structural nature received a dump of the ca2+ adsorbent that was already present in the surface area. The Pb component was supported by the adsorbent's surface-level structure [55].…”

Section: 5anova For Quadratic Modelmentioning

confidence: 99%

Synthesis and adsorption capacity of biochar derived from Tamarindus indica shell for the removal of heavy metal

2023

Global NEST: The International Journal

View full text Add to dashboard Cite

<p>Tamarindus indica shell biochar is employed as an alternate adsorbent precursor for the removal of heavy metal ions from aqueous solutions. It investigated the Tamarindus indica shell biochar's capacity to absorb chromium (Cr), copper (Cu), and Lead (Pb). This study showed the extensive explored how biosorption experimental limitations counting primary metal attentiveness, adsorbent dosage, temperature, and contact time affect the process. The complete analysis of the Tamarindus indica shell's adsorption capability with respect to chromium, copper, and nickel removal was conducted using a batch adsorption procedure. Determining the amount of heavy metal removal in the aqueous solution proceeded by Gas Chromatography (GC). The experimental data analyzed using the Yoon Nelson and Thomson models to regulate the equilibrium isotherms. The optimal parameters for the overall adsorption model were determined by using ANOVA. Investigate the adsorbent's surface area to determine the presence of heavy metal presents using SEM, XRD, and FTIR techniques. Each researched heavy metal's adsorption capability is listed below: Cr = 6.07 mg/L, Cu = 5.53 mg/L and Pb = 5.497mg/L with a removal percentage of 64%, 92% and 78%, respectively. The results showed that biochar generated from Tamarindus indica shells is an effective adsorbent for removing copper from aqueous solutions but not a viable biosorbent for removing chromium. Also, the regenerated column's adsorption capability was examined. The outcomes of the research demonstrated that bio-char, which produced from Tamarindus indica shell can be employed as an efficient and reasonably priced adsorbent to remove heavy metal ions from aqueous solutions.</p>

show abstract

Investigating the process of electrocoagulation in the removal of azo dye from synthetic textile effluents and the effects of acute toxicity on Daphnia magna test organisms

Cited by 35 publications

References 50 publications

Mechanism and Techno‐Economic Analysis of the Electrochemical Process

Mechanism and Techno‐Economic Analysis of the Electrochemical Process

Valorization of Annona reticulata biochar by chitosan for the adsorption of Azo dye from Textile effluent

Synthesis and adsorption capacity of biochar derived from Tamarindus indica shell for the removal of heavy metal

Contact Info

Product

Resources

About