Single and binary sorption of reactive dyes onto red seaweed-derived biochar: multi-component isotherm and modelling

Thivya, J.; Jegan, J.

doi:10.5004/dwt.2019.23974

Cited by 12 publications

(5 citation statements)

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“…For Cr(III) ions it was 50%, Cu(II) ions-37% and for Zn(II) ions-92% [20]. Thivya and Vijayaraghavan (2019) reported that red seaweed-derived biochar (obtained from Kappaphycus alvarezii at 350 • C) was also efficient in the removal of reactive dyes, such as reactive orange 16 and reactive blue 4 in mono-and binary-contaminated waters [40]. Gokulan et al (2019) demonstrated the potential of biochar synthesized from green seaweed Ulva lactuca at 300 • C to remove Remazol dyes from complex dye wastewaters.…”

Section: Elementmentioning

confidence: 98%

Biochar from A Freshwater Macroalga as A Potential Biosorbent for Wastewater Treatment

Michalak

Baśladyńska

Mokrzycki

et al. 2019

Water

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The multi-elemental composition, surface texture and morphology of biochar, produced by pyrolysis at 300, 350, 400 and 450 °C from freshwater macroalga Cladophora glomerata, as a biosorbent of toxic metals was examined with Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES), Scanning Electron Microscopy (SEM), and Fourier Transform Infrared Spectroscopy (FT-IR) techniques. It was found that the yield of pyrolysis was inversely proportional to temperature: for 300 °C it was 63%, whereas for 450 °C—47%. The proximate analysis revealed that also biochar’s moisture and volatile matter was inversely proportional to temperature. The content of ash increased with temperature. All biochars were characterized by a similar total pore area of about 20 m2 g−1. FT-IR analysis showed that all biochars peaked at 3500–3100 cm−1 which was attributed to O–H stretching of the hydroxyl groups, at 2850–2970 cm−1, stretching vibrations of C–H bonds in aliphatic CH2 and CH groups, at 1605 cm−1, stretching vibrations from C=C of aromatics, at 1420 cm−1, bending oscillations from CH2, at about 1111 cm−1, stretching vibrations of Si–O, at 618 cm−1, vibrations from Fe–O bonds, and at 475 cm−1—Si–O–Si deformation vibrations. The biosorption properties of biochar towards Cr(III) ions were examined in kinetic studies. The biosorption capacity of biochar increased with an increase of pyrolysis temperature: the highest was for biochar obtained at 450 °C—87.1 mg Cr(III) g−1 and the lowest at 300 °C—45.9 mg g−1. Cladophora biochar also demonstrated a good ability to simultaneously remove metal ions from a multi-metal system, e.g., wastewater. The removal efficiency for Cr(III) was 89.9%, for Cu(II) 97.1% and for Zn(II) 93.7%. The biochar derived from waste-freshwater macroalgae can be a potent and eco-friendly alternative adsorptive material.

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Section: Elementmentioning

confidence: 98%

Biochar from A Freshwater Macroalga as A Potential Biosorbent for Wastewater Treatment

Michalak

Baśladyńska

Mokrzycki

et al. 2019

Water

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“…Moreover, the biochar itself can vary based on the initial biomass from which it is produced. In order to find the best biochar-dye combination, a summary of articles examining different combinations was made [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43].…”

Section: Discussionmentioning

confidence: 99%

“…Table 1 summarizes different characteristics from 18 articles that present the use of biochar in treatment of textile wastewater [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43]. The articles are catagorized to biochar properties, dye properties, experimental conditions, dye adsorption experiments compared to a common biochar and modified biochar.…”

Section: Discussionmentioning

confidence: 99%

Decolorization of dyes from textile wastewater using biochar: a review

et al. 2020

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The textile industry is one of the largest in many low and middle-income countries, especially in Asia, second only to agriculture. Textile wastewater is discharged into the environment due to the lack of affordable and sustainable solutions to adsorb or remove the dye from the water. Biochar is generated by pyrolysis of organic material from plant waste in low-oxygen conditions, and is considered carbon-negative. Biochar for dye adsorption in textile wastewater effluent was proven to be highly effective. However, adsorption efficiency varies with experimental parameters, therefore there is a gap in application especially in small dye houses. Efforts should be made to find innovative and affordable solution to make the textile industry more sustainable, by developing methods for collection and reuse, recycle and upcycle of textile waste, by reducing the consumption of water, energy and chemicals and by developing methods for treatment of the textile wastewater.

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“…3.3.1. Optimization of the Initial Solution's pH to Achieve Maximum RO 16 Removal The influence of the initial pH value on the removal/adsorption of RO 16 by different adsorbents was already noted by many authors [29][30][31][32][33][34][35]. Therefore, to infer more information about the nature of the adsorption process, the removal (in further text: R) of RO 16 by polysaccharide-based fabrics was studied in the pH range of 2-7 by adding appropriate amounts of 1 M HCl, or 0.1 M NaOH.…”

Section: Optimization Of the Initial Solution's Ph To Achieve Maximum...mentioning

confidence: 99%

“…It is well known that thermodynamic experiments are important for probing the nature and mechanism of dye adsorption [48], hence, the impact of different temperatures (25,35,45, and 55 • C) on RO 16 adsorption onto investigated fabrics was examined. The data shown in Figure 10 point out that temperature has two different effects on the q of fabrics.…”

Section: Thermodynamic Studiesmentioning

confidence: 99%

Obtaining Polysaccharide-Based Fabrics with Improved Moisture Sorption and Dye Adsorption Properties

et al. 2023

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Raw jute fabric was treated with 0.5, 1.0, or 2.0% chitosan solution to improve its sorption properties (evaluated through the moisture sorption and adsorption of textile dye Reactive Orange 16 (RO 16)), which are essential for fabric utilization as geo-prebiotic polysaccharide support that should provide the necessary water for the growth of cyanobacterial communities in biocarpet engineering. Chitosan-treated fabrics possessed 39–78% higher moisture sorption values than the untreated ones. Concerning the dye adsorption, with the increase in its initial concentration, the adsorption potential of raw and fabrics treated with 0.5 or 1.0% chitosan solution was increased up to 1.9 times. The dye adsorption onto these fabrics was exothermic and enthalpy driven. By increasing the chitosan solution percentage up to 1.0%, fabric adsorption potential increased up to 2.2 times. An inverse relationship was observed in the case of the fabric treated with 2.0% chitosan solution, its adsorption potential decreased with increasing the initial dye concentration and temperature due to the different dominant binding interactions. Concerning the contact time, dye adsorption onto fabric treated with 1.0% chitosan solution was rapid in the first 2 h, while the equilibrium was attained after 4.5 h. The isotherm and kinetic data were represented by the Langmuir model and the pseudo-second-order kinetic model, respectively.

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Single and binary sorption of reactive dyes onto red seaweed-derived biochar: multi-component isotherm and modelling

Cited by 12 publications

References 0 publications

Biochar from A Freshwater Macroalga as A Potential Biosorbent for Wastewater Treatment

Biochar from A Freshwater Macroalga as A Potential Biosorbent for Wastewater Treatment

Decolorization of dyes from textile wastewater using biochar: a review

Obtaining Polysaccharide-Based Fabrics with Improved Moisture Sorption and Dye Adsorption Properties

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