Simultaneous treatment of dye wastewater and surfactant wastewater by foam separation: Experimental and mesoscopic simulation study

Fei, Xuening; Li, Weiwei; Zhu, Sen; Liu, Lijuan; Yang, Yuemei

doi:10.1080/01496395.2017.1406951

Cited by 20 publications

(10 citation statements)

References 27 publications

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“…At low pH, H + ions competed with cationic dye whereas at high pH, OHions competed with an anionic surfactant that was responsible for complex formation in lesser amounts. Poor foam quality and stability at lower pH while the presence of more water content in the foam phase at higher pH might also be the reason for lower percentage removal at these conditions [45]. The optimum pH ranges as seen from Fig.…”

Section: Effect Of Initial Phmentioning

confidence: 95%

“…Literature review, however, reveals that only a few researchers have so far attempted to explore foam fractionation for the separation of dyes viz. removal of methyl orange employing dodecyl dimethyl betaine as a surfactant [44], removal of rhodamine B employing sodium dodecylbenzene sulfonate as a surfactant [45], removal of direct black 17 employing cetyl trimethyl ammonium bromide as a surfactant [42], removal of methylene blue employing sodium dodecyl sulfate as a collector [46] and removal of crystal violet employing sodium dodecyl sulfate as a surfactant [47]. In the view of an extensive literature review, an attempt was made in the present paper to utilize this powerful technique for the removal of dye.…”

Section: Introductionmentioning

confidence: 99%

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Dye separation using a semi-batch foaming process: Process optimization using Taguchi methodology and Grey relational analysis

Bharadwaj

Gupta

2020

Environmental Engineering Research

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Foam fractionation is one of the novel techniques used nowadays for the wastewater treatment. The present paper discusses the removal of methylene blue dye by using a surfactant, sodium dodecyl sulfate, as a collector, by semi-batch foam fractionation technique. The influence of operating variables like aeration rate (150 – 250 mL.min<sup>-1</sup>), liquid height (600 – 900 mL), dye concentration (5 – 25 ppm), pH (3 – 10), surfactant dose (250 – 2000 ppm) on percentage removal, enrichment ratio and surface excess were investigated. The results revealed fairly high percentage removals at various operating conditions due to strong electrostatic interaction between dye and surfactant. Further, in order to augment separation, optimization was performed by employing Taguchi-based experimental design followed by Grey relational analysis (GRA) technique. The optimal conditions were found to be: 150 mL.min<sup>-1</sup> air flow rate, 600 mL liquid loading and 5 ppm dye concentration for percentage removal of 95.7% and an enrichment ratio of 7.49. The analysis of variance (ANOVA) suggested dye concentration to be the most influencing operating variable. Lastly, the equilibrium relationship between bulk and surface phase was established which qualitatively indicates as to how much the actual process departs from equilibrium.

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Section: Effect Of Initial Phmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Dye separation using a semi-batch foaming process: Process optimization using Taguchi methodology and Grey relational analysis

Bharadwaj

Gupta

2020

Environmental Engineering Research

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“…The single or multi-stage foam fractionation column can operate either batch-wise or continuous manner (Srinet et al 2017 ). Generally, air flow rate, attainment of critical micelle concentration, the volume of foam, sonication time, and power significantly influence foam fractionation (Srinet et al 2017 ; Fei et al 2018 ). Extensive studies have been reported on the effects of air-flow rate, feed flow rate, time, foam height, and liquid height to remove anionic surfactants (e.g.…”

Section: Remediation Of Surfactantsmentioning

confidence: 99%

“…Cationic surfactants possess a cationic functional group, while anionic surfactants contain negatively charged hydrophilic functional groups (Zhu et al 2018 ). The non-ionic surfactants (TAS) possess a non-ionized hydrophilic group(s), while the charge on the hydrophilic sites of amphoteric surfactants changes as a function of pH (Fei et al 2018 ; Collivignarelli et al 2019 ). Fig.…”

Section: Introductionmentioning

confidence: 99%

Environmental risks and toxicity of surfactants: overview of analysis, assessment, and remediation techniques

Badmus

Amusa

Oyehan

et al. 2021

Environ Sci Pollut Res

193

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This work comprehensively reviewed the toxicity and risks of various surfactants and their degraded products in the environmental matrices, various analytical procedures, and remediation methods for these surfactants. The findings revealed that the elevated concentration of surfactants and their degraded products disrupt microbial dynamics and their important biogeochemical processes, hinder plant-surviving processes and their ecological niche, and retard the human organic and systemic functionalities. The enormous adverse effects of surfactants on health and the environment necessitate the need to develop, select, and advance the various analytical and assessment techniques to achieve effective identification and quantification of several surfactants in different environmental matrices. Considering the presence of surfactants in trace concentration and environmental matrices, excellent analysis can only be achieved with appropriate extraction, purification, and preconcentration. Despite these pre-treatment procedures, the chromatographic technique is the preferred analytical technique considering its advancement and shortcomings of other techniques. In the literature, the choice or selection of remediation techniques for surfactants depends largely on eco-friendliness, cost-implications, energy requirements, regeneration potential, and generated sludge composition and volume. Hence, the applications of foam fractionation, electrochemical advanced oxidation processes, thermophilic aerobic membranes reactors, and advanced adsorbents are impressive in the clean-up of the surfactants in the environment. This article presents a compendium of knowledge on environmental toxicity and risks, analytical techniques, and remediation methods of surfactants as a guide for policymakers and researchers.

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“…Fei et al (2017) investigated simultaneous removal of cetyl trimethyl ammonium bromide and rhodamine B using foam separation(Fei et al, 2017). Treatment efficiency and enrichment ration of dye to surfactant were studied as affected by surfactant type, temperature, initial pH, and aeration rate.…”

mentioning

confidence: 99%

Textiles Wastewater Treatment

Deng

Aryal

Ofori-Boadu

et al. 2018

Water Environment Research

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Simultaneous treatment of dye wastewater and surfactant wastewater by foam separation: Experimental and mesoscopic simulation study

Cited by 20 publications

References 27 publications

Dye separation using a semi-batch foaming process: Process optimization using Taguchi methodology and Grey relational analysis

Dye separation using a semi-batch foaming process: Process optimization using Taguchi methodology and Grey relational analysis

Environmental risks and toxicity of surfactants: overview of analysis, assessment, and remediation techniques

Textiles Wastewater Treatment

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