Techno-economical optimization of Reactive Blue 19 removal by combined electrocoagulation/coagulation process through MOPSO using RSM and ANFIS models

Taheri, M.; Moghaddam, Mohammad Reza Alavi; Arami, Mokhtar

doi:10.1016/j.jenvman.2013.06.029

Cited by 78 publications

(16 citation statements)

References 25 publications

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“…However, the development of electrochemical technologies is restricted by their high initial capital investment and expensive electricity supply. Membrane filtration can remove heavy metal ions with high efficiency, but its high cost, process complexity, membrane fouling, and low permeate flux limit its use in heavy metal removal [30]. The sludge produced when using coagulation flocculation to remove heavy metals from wastewater features good settling and dewatering characteristics [31].…”

Section: Application In Water Treatmentmentioning

confidence: 99%

Application of Red Mud in Wastewater Treatment

Wang

Lyu

et al. 2019

Minerals

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Red mud (RM) is an industrial waste produced in large amounts during alumina extraction from bauxite. Its disposal generates serious environmental pollution due to high alkalinity. Therefore, a strategy for the effective utilization of RM must be developed. For instance, RM may be transformed into useful products, such as adsorbents. Given its high concentrations of aluminum oxides, iron oxides, titanium oxides, silica oxides, and hydroxides, RM may be developed as a cheap adsorbent for the removal of various ions from aqueous solution and soils (e.g., metal and non-metal ions, phenolic compounds, and dyes) and waste gas purification (sulfide and carbide). This review summarizes the background, properties, and applications of RM as an adsorbent. Proper approaches of removing metal and non-metal elements from wastewater are also systematically reviewed and compared. Emphasis is placed on the surface modification of RM to obtain high adsorption. Finally, the scope for future research in this area for RM is discussed in depth.

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Section: Application In Water Treatmentmentioning

confidence: 99%

Application of Red Mud in Wastewater Treatment

Wang

Lyu

et al. 2019

Minerals

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“…In this research, electrode material and electrical energy costs were taken into account as major cost terms in the calculation of operating costs (EGP/g hexavalent chromium removed) using the following equation [52].…”

Section: Study Of the Ec Process Costmentioning

confidence: 99%

Removal of Cr(VI) ions from waste water by electrocoagulation using iron electrode

El-Taweel

Nassef

Elkheriany

et al. 2015

Egyptian Journal of Petroleum

102

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The performance of electrocoagulation using iron electrodes for the treatment of aqueous solutions containing chromium hexavalent ions using fixed bed electrochemical batch reactor was studied. A new anode design consisting of hex nuts was connected together with a thin rode of iron. The helical shape in the nuts increases the anode surface area allowing high chromium removal rate within very short coagulation time. The effect of different parameters affecting the electrocoagulation process, such as initial hexavalent chromium concentration, applied current, electrolyte type [sodium chloride and sodium sulfate] concentration and initial pH of the solution was investigated. The optimum conditions for the EC process by using the present cell based on minimum initial hexavalent chromium concentration, energy consumption and operating cost were 100 mg of Cr(VI)/l, 0.55 A, 1.5 g of sodium chloride/land pH of 1. ª 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of Egyptian Petroleum Research Institute. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

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“…The disadvantages of blue 19 include low biodegradability, low light, dissolved oxygen transfer, and prevention from photosynthesis (2). One of the hazards of the reactive blue dye is its mutagenicity and carcinogenicity properties.…”

Section: Introductionmentioning

confidence: 99%

Decolorization of reactive blue 19 from aqueous solutions by electrocoagulation process

Arghavan

Nabavian

Entezari

et al. 2018

JHST

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Background: Industrial wastewater contains several harmful chemicals, such as textile dyes, that are toxic to human and biological life. Accordingly, the wastewater from textile industry must be treated to minimize hazardous effects, including carcinogenic, mutagenic, teratogenic, coloring agent prior to disposal. The aim of the present study was to investigate the effect of electrocoagulation (EC) process for reactive blue 19 dye removal from aqueous solutions. Materials and Methods: In the current experimental study the electrocoagulation process was employed to remove reactive blue dye from aqueous solution using laboratory scale batch reactor. The electrodes were positioned vertically and parallel to each other. Two iron and two aluminum electrodes were used as anode and cathode, respectively. Different operating parameters, including current density (0.2, 0.5, 1.3, 2.6, 5.2 mA/cm 2 ), initial pH (3,5,7,9,11), initial dye concentration (10, 20, 30, 50, 100, 200 mg/l), and reaction time (10, 20, 30, 60 min), were tested with the synthetic wastewater in order to determine the optimal parameters. Results: The best-operating conditions were achieved at the current density of 0.5 mA/cm 2 , initial pH of 3, and the dye concentration of 30 mg/l. The optimum parameters at the batch-stirred EC system led to 92.26 % and 98.93% of decolorization after 20 and 60 min of operation, respectively. Conclusions: The results clearly showed that EC was an effective and operational process for reactive blue 19 removals.

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Techno-economical optimization of Reactive Blue 19 removal by combined electrocoagulation/coagulation process through MOPSO using RSM and ANFIS models

Cited by 78 publications

References 25 publications

Application of Red Mud in Wastewater Treatment

Application of Red Mud in Wastewater Treatment

Removal of Cr(VI) ions from waste water by electrocoagulation using iron electrode

Decolorization of reactive blue 19 from aqueous solutions by electrocoagulation process

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