Constructed wetland: a promising technology for the treatment of hazardous textile dyes and effluent

Patil, Ravishankar; Zahid, Masirah; Govindwar, Sanjay P.; Khandare, Rahul V.; Vyavahare, Govind; Gurav, Ranjit; Desai, Neetin; Pandit, Soumya; Jadhav, Jyoti P.

doi:10.1016/b978-0-323-85583-9.00016-8

Cited by 24 publications

(22 citation statements)

References 106 publications

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“…The different properties of the palm fronds and developed biochars were characterized by FT-IR, SEM-EDX, XRD, and BET analysis. The adsorption studies of the MnO 2 /PF biochar nanocomposite were investigated in a batch mode at pH (2)(3)(4)(5)(6)(7)(8)(9)(10)(11), an initial MO concentration of (10-50 mg/L), and an adsorbent dose of (0.01-0.1 g). It was found that the MnO 2 /PF biochar showed the highest micro-mesopores structure and surface area (70.97 m 2 /g), compared to those of other samples.…”

Section: Discussionmentioning

confidence: 99%

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Biochar Derived from Palm Waste Supported Greenly Synthesized MnO2 Nanoparticles as a Novel Adsorbent for Wastewater Treatment

Taha

Daffalla

2023

Catalysts

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Water pollution with dye effluents from different industries is a broadly established environmental and health problem that needs serious attention. In this study, making use of Acacia nilotica seed extract, greenly synthesized MnO2 nanoparticles were loaded on the surface of biochar derived from palm waste (MnO2/PF), with specific surface areas of 70.97 m2/g. Batch experiments were adopted, aiming to evaluate the performance of palm fronds, biochar, and the MnO2/PF adsorbents in methyl orange (MO) removal from an aqueous solution. The feedstock and synthesized biochars were comprehensively characterized using XRD, SEM-EDX, FTIR, and BET surface area techniques. Moreover, the influences of the modification of palm fronds, initial dye concentrations, pH, and adsorbent dosage on MO uptake were examined. The results demonstrated that MnO2/PF biochar nanocomposite led to an increase in the removal efficiency by 6 and 1.5 times more than those of palm fronds and biochar, respectively. In addition, it was found that the second-order kinetic model presented the kinetic adsorption very well. This paper demonstrates that the depositing of greenly synthesized MnO2 nanoparticles on the date palm waste biochar forms a novel adsorbent (MnO2/PF) for the removal of MO from aqueous solutions. Furthermore, this adsorbent was easy to synthesize under moderate conditions without the need for chemical capping agents, and would thus be cost-effective and eco-friendly.

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Section: Discussionmentioning

confidence: 99%

“…The various technologies that have been investigated for dye decontamination include adsorption, coagulation, and degradation technologies, etc. [4][5][6][7][8]. Amongst these technologies, adsorption is found to be one of the better methods as it has a high efficiency, low cost and simple operation [9].…”

Section: Introductionmentioning

confidence: 99%

Biochar Derived from Palm Waste Supported Greenly Synthesized MnO2 Nanoparticles as a Novel Adsorbent for Wastewater Treatment

Taha

Daffalla

2023

Catalysts

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“…Phytoremediation is an alternative green approach to biotreating wastewater contaminated with heavy metals and organic pollutants [21,127]. The primary benefit of dye removal by plants is that it is an autotrophic system with large biomass, which requires little nutrient cost, is easier to handle, and is generally accepted by the public due to its aesthetic demand and environmental sustainability [128,129].…”

Section: Yeastmentioning

confidence: 99%

“…Dye is the primary pollutant in textile effluent water [20]. Dye effluents are generated because dyes are not completely fixed to the fiber during the dyeing and finishing operations [21,22]. Dye molecules have a complicated aromatic backbone and contain several auxochromes that give them a beautiful color.…”

Section: Introductionmentioning

confidence: 99%

A Review of Various Treatment Methods for the Removal of Dyes from Textile Effluent

Kathing¹,

Saini²

2022

Recent Prog Mater

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Wastewater generated by the textile industry has been a major environmental concern for a long. Production of fiber involves various steps and uses a lot of chemicals, dyes, and water. Therefore, the effluent produced from the textile industry needs proper purification before discharging into the water body. The current review summarizes various physical and chemical methods like ion exchange, coagulation-flocculation, membrane separation, membrane distillation, oxidation, ozonation, etc., for wastewater treatment. Along with this, adsorption methods, the various adsorbents used to purify wastewater, and the mechanism involved in adsorption have also been discussed. The biological method utilizes various microbes (bacteria, fungi, algae, and yeast) as a whole and the enzymes (laccase and azoreductase) secreted by them for wastewater treatment, which have been considered more feasible than physical and chemical methods. The adsorption and biological methods are better than other techniques due to their ability to degrade diverse classes of dye, less accumulation of harmless sludge, and cost-effective and safer approach for the disposal of textile effluent. While physical and chemical methods are expensive and generate toxic sludge, which is difficult to decompose.

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“…This is due to the fact that they hinder photosynthesis, slow plant development, penetrate the dietary web, offer intransigence and biomagnification, and can potentially encourage toxic effects, genotoxicity, and carcinogenic effects. [14,15] Untreated sewage from sectors related to textiles typically comprises significant concentrations of minerals, metals, organic compounds, dissolved substances, and highly resistant colorants; [16] however, due to the synthetic nature of these dyes and their resistance to degradation, conventional treatment methods are often ineffective; [17] furthermore, second pollutants and the unproductive elimination of organic content on such darkening require the development of novel strategies. [18] Therefore, there is an immediate need to create ecologically acceptable and cost-effective treatment methods for the proper treatment of wastewater containing dye before it is finally disposed of in the environment.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Dyes Present in Industrial Effluents: A Review

et al. 2023

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Photocatalytic degradation has recently emerged as an environmentally friendly and cost-effective strategy for treating dye-contaminated water existing in the environment that has detrimental effects on the natural ecosystem and also affects human health. In this review article, the authors aim to provide an overview of the latest developments in photocatalysis processes for the purpose of dye degradation in industrial effluents. For this purpose, the photocatalyst materials are mainly classified into three generations: the first generation (1G), the second generation (2G), and the third generation (3G). The phenomena such as mass transfer, efficiency of the photo-Fenton process, minimizing electron-hole recombination, re-ducing pollution that is supplementary to byproducts, preventing inactivation due to poisoning, etc. are analyzed in depth to get efficient photocatalytic degradation of dye-contaminated wastewater. A brief discussion on photocatalytic fuel cell technology and the simultaneous production of sustainable and renewable energy is emphasized. A more realistic approach for assessing the efficacy of various generations of photocatalysts in the process of dye degradation has been highlighted. This review article aims to examine the challenges and uncertainties associated with dye degradation in the photocatalytic process as well as provide a conceptual framework for the widespread implementation of this technology.

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Constructed wetland: a promising technology for the treatment of hazardous textile dyes and effluent

Cited by 24 publications

References 106 publications

Biochar Derived from Palm Waste Supported Greenly Synthesized MnO2 Nanoparticles as a Novel Adsorbent for Wastewater Treatment

Biochar Derived from Palm Waste Supported Greenly Synthesized MnO2 Nanoparticles as a Novel Adsorbent for Wastewater Treatment

A Review of Various Treatment Methods for the Removal of Dyes from Textile Effluent

Photocatalytic Degradation of Dyes Present in Industrial Effluents: A Review

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