Electrochemical Treatment of Dye Bearing Effluent with Different Anode–Cathode Combinations: Mechanistic Study and Sludge Analysis

Singh, Seema; Srivastava, Vimal Chandra; Mall, Indra Deo

doi:10.1021/ie4042005

Cited by 32 publications

(6 citation statements)

References 47 publications

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“…During the electrolysis of water, the salt concentration hardly changed. At the end of the process, the alkalinity increased from pH 7.1-7.7, which must be adjusted [23]. EC water treatment was initially purified by removing Fe 2+ ions, Ca 2+ ions and organic impurities.…”

Section: Tertiary Treatmentmentioning

confidence: 99%

A Review on Promising Membrane Technology Approaches for Heavy Metal Removal from Water and Wastewater to Solve Water Crisis

Batouti

Al‐Harby

Elewa

2021

Water

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Due to the impacts of water scarcity, the world is looking at all possible solutions for decreasing the over-exploitation of finite freshwater resources. Wastewater is one of the most reliable and accessible water supplies. As the population expands, so do industrial, agricultural, and household operations in order to meet man’s enormous demands. These operations generate huge amounts of wastewater, which may be recovered and used for a variety of reasons. Conventional wastewater treatment techniques have had some success in treating effluents for discharge throughout the years. However, advances in wastewater treatment techniques are required to make treated wastewater suitable for industrial, agricultural, and household use. Diverse techniques for removing heavy metal ions from various water and wastewater sources have been described. These treatments can be categorized as adsorption, membrane, chemical, or electric. Membrane technology has been developed as a popular alternative for recovering and reusing water from various water and wastewater sources. This study integrates useful membrane technology techniques for water and wastewater treatment containing heavy metals, with the objective of establishing a low-cost, high-efficiency method as well as ideal production conditions: low-cost, high-efficiency selective membranes, and maximum flexibility and selectivity. Future studies should concentrate on eco-friendly, cost-effective, and long-term materials and procedures.

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Section: Tertiary Treatmentmentioning

confidence: 99%

A Review on Promising Membrane Technology Approaches for Heavy Metal Removal from Water and Wastewater to Solve Water Crisis

Batouti

Al‐Harby

Elewa

2021

Water

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“…So their removal from the contaminated water bodies becomes very much imperative . So far, the most common methods for treating dye wastewater include coagulation–flocculation, aerobic or anaerobic treatments, electrochemical treatments, photocatalysis, − biodegradation, membrane filtration, and adsorption . Among all these available methods, adsorption is very much preferred owing to its simplicity, low operating cost.…”

Section: Introductionmentioning

confidence: 99%

Waste Iron Dust Derived Iron Oxide Nanoparticles for Efficient Adsorption of Multiple Azo Dyes

Twinkle,

Tewatia,

Kaushik

et al. 2024

ACS Sustainable Resour. Manage.

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Herein, we have described a simple and viable approach to use the waste byproduct of steel industries: red iron oxide dust (IOD) for synthesizing its reduced version as reduced-IOD (r-IOD). The r-IOD possess active multiphases of iron oxides (Fe@Fe3O4@Fe2O3) and is used for the adsorption of three organic dyes. The surface area of magnetically active r-IOD is found to be ∼4.5 times than that of IOD and shows better mesoporosity. Due to having a larger surface area, r-IOD is used for the efficient adsorption of three organic dyes that include two anionic azo dyes, namely, RG 19 (Reactive Green 19), RO 16 (Reactive Orange 16) and one cationic MG (Malachite Green) dye, with maximum adsorption capacities of ∼2162.9, ∼2273.1, and ∼1400.2 mg g–1, respectively. Various batch experiments related to kinetics, isotherms, and adsorption thermodynamics are studied to understand the rate, order, type, and feasibility of adsorption. The effects of temperature, pH, loading, and concentration, on the adsorption process are also investigated. Moreover, the adsorption capacity of r-IOD is satisfactorily tested via an external spiking method toward the dye removal from industrial wastewater and laboratory wastewater.

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“…Some techniques have been applied for the elimination of dyes in aquatic media such as biodegradation 7 , electrochemical treatment 8 , electrochemical oxidation and aerobic biodegradation 9 , nanofiltration and reverse osmosis 10 , photo catalytic degradation 11 , degradation by Fenton and photo-Fenton processes 12 and adsorption 13 .…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Methylene Blue from aqueous solution using Senegal River Typha australis

N’diaye

Ali²,

Bollahi

et al. 2020

Mediterr.J.Chem.,

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In this work, batch adsorption experiments were carried out for the removal of Methylene Blue (MB) from aqueous solutions using Typha australis leaf as a low cost adsorbent. The effects of some variables governing the efficiency of the process such as adsorbent mass, pH, ionic strength, contact time and temperature were investigated. The adsorption kinetic data were analyzed using the Pseudo First Order (PFO) and Pseudo Second Order (PSO) models. The experimental equilibrium data were analyzed using Langmuir and Freundlich isotherm models. The results show that the PSO model is the best for describing the adsorption of MB by Typha australis for all initial MB concentrations. The equilibrium data fitted well with the Langmuir model with the monolayer adsorption capacity for MB-Typha australis leaf system was of 103.12 mg g-1. The values of activation parameters such as free energy (ΔG°), enthalpy (ΔH°) and entropy (ΔS°) were also determined as - 4.44 kJ mol−1, 55.13 kJ mol−1 and 203.21 J mol−1 K−1, respectively. The thermodynamics parameters of MB-Typha australis system indicate spontaneous and endothermic process. These results indicate that the Typha australis leaf can be feasibly employed for the eradication of MB from aqueous solution.

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Electrochemical Treatment of Dye Bearing Effluent with Different Anode–Cathode Combinations: Mechanistic Study and Sludge Analysis

Cited by 32 publications

References 47 publications

A Review on Promising Membrane Technology Approaches for Heavy Metal Removal from Water and Wastewater to Solve Water Crisis

A Review on Promising Membrane Technology Approaches for Heavy Metal Removal from Water and Wastewater to Solve Water Crisis

Waste Iron Dust Derived Iron Oxide Nanoparticles for Efficient Adsorption of Multiple Azo Dyes

Adsorption of Methylene Blue from aqueous solution using Senegal River Typha australis

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