Chromium removal from tannery wastewater using Syzygium cumini bark adsorbent

Hashem, Md. Abul; Momen, Md. Abdul; Hasan, Md. Munjur; Nur‐A‐Tomal, Md. Shahruk; Sheikh, Md. Hasibur Rahman

doi:10.1007/s13762-018-1714-y

Cited by 39 publications

(11 citation statements)

References 31 publications

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“…In order to investigate the impact of adsorbent masses on the breakthrough curve, tannery wastewater (Cr(VI), 1640 mg/L) was passed through various adsorbent masses extending from 1 g to 3 g, while other parameters, such as flow rate, pH and concentration of Cr(VI), were kept constant. The results in Figure 10 display that the breakthrough time was enhanced as the adsorbent mass was increased from 1 g to 3 g. This could be ascribed to the availability of more active sites of MNPs/rGO/PMMA for the adsorption of Cr(VI) with the increase in mass [55]. It might be induced from the results that the breakthrough curve is dependent on the MNPs/rGO/PMMA bed mass.…”

Section: Effect Of Mass Of Mnps/rgo/pmma Composite On the Breakthroug...mentioning

confidence: 92%

Fabrication of MNPs/rGO/PMMA Composite for the Removal of Hazardous Cr(VI) from Tannery Wastewater through Batch and Continuous Mode Adsorption

et al. 2021

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Herein, we report the synthesis of magnetic nanoparticle (MNP)-reduced graphene oxide (rGO) and polymethylmethacrylate (PMMA) composite (MNPs/rGO/PMMA) as adsorbent via an in situ fabrication strategy and, in turn, the application for adsorptive removal and recovery of Cr(VI) from tannery wastewater. The composite material was characterized via XRD, FTIR and SEM analyses. Under batch mode experiments, the composite achieved maximum adsorption of the Cr(VI) ion (99.53 ± 1.4%, i.e., 1636.49 mg of Cr(VI)/150 mg of adsorbent) at pH 2, adsorbent dose of 150 mg/10 mL of solution and 30 min of contact time. The adsorption process was endothermic, feasible and spontaneous and followed a pseudo-2nd order kinetic model. The Cr ions were completely desorbed (99.32 ± 2%) from the composite using 30 mL of NaOH solution (2M); hence, the composite exhibited high efficiency for five consecutive cycles without prominent loss in activity. The adsorbent was washed with distilled water and diluted HCl (0.1M), then dried under vacuum at 60 °C for reuse. The XRD analysis confirmed the synthesis and incorporation of magnetic iron oxide at 2θ of 30.38°, 35.5°, 43.22° and 57.36°, respectively, and graphene oxide (GO) at 25.5°. The FTIR analysids revealed that the composite retained the configurations of the individual components, whereas the SEM analysis indicated that the magnetic Fe3O4–NPs (MNPs) dispersed on the surface of the PMMA/rGO sheets. To anticipate the behavior of breakthrough, the Thomas and Yoon–Nelson models were applied to fixed-bed column data, which indicated good agreement with the experimental data. This study evaluates useful reference information for designing a cost-effective and easy-to-use adsorbent for the efficient removal of Cr(VI) from wastewater. Therefore, it can be envisioned as an alternative approach for a variety of unexplored industrial-level operations.

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Section: Effect Of Mass Of Mnps/rgo/pmma Composite On the Breakthroug...mentioning

confidence: 92%

Fabrication of MNPs/rGO/PMMA Composite for the Removal of Hazardous Cr(VI) from Tannery Wastewater through Batch and Continuous Mode Adsorption

et al. 2021

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“…The sorption capacity of the adsorbent is defined by using the most commonly used isotherm models, Langmuir and Freundlich [30]. The Langmuir adsorption isotherm assumed the monolayer adsorption on the surface of adsorbent.…”

Section: Isotherm Adsorptionmentioning

confidence: 99%

Adsorption efficiency of banana blossom peels (musa acuminata colla) adsorbent for chromium (VI) removal

Selimin

Latif²,

et al. 2022

Materials Today: Proceedings

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“…Different studies have reported high values of BOD, COD and even the presence of Cr in effluents [ 13 , 36 , 39 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 ]. Other compounds have been reported in these wastewaters, finding results of acidic pH between 3.4 ± 0.0351 and 5.96 ± 0.0351 [ 56 , 57 , 58 ] and basic pH between 8.0 ± 0.4 and 11.64 ± 0.53 [ 37 , 41 , 46 , 51 , 52 , 54 , 55 , 59 , 60 , 61 ]; in relation to TDS, typical values can have concentrations ranging from 2355 ± 85 mg*L −1 to 10,000 ± 800 mg*L −1 [ 9 , 37 , 39 , 42 , 61 , 62 ]; high concentrations have been recorded that can be between 10,560 ± 78 mg*L −1 and 72,400 ± 0.10 mg*L −1 [ 35 , 40 , 53 , 54 , 55 , 63 ]; as for BOD, the average values can be in low ranges from 160 ± 15.8 mg*L −1 to 1250 ± 38 mg*L −1 [ 37 , 39 , 61 , 63 ] and in high ranges that fluctuate between 1500 ± 41 mg*L −1 and 6000 ± 30 mg*L −1 [ 9 , 49 , 50 , 51 , 53 , 54 …”

Section: Pollutant Loads From Tannery Wastewatersmentioning

confidence: 99%

“…Other compounds have been reported in these wastewaters, finding results of acidic pH between 3.4 ± 0.0351 and 5.96 ± 0.0351 [ 56 , 57 , 58 ] and basic pH between 8.0 ± 0.4 and 11.64 ± 0.53 [ 37 , 41 , 46 , 51 , 52 , 54 , 55 , 59 , 60 , 61 ]; in relation to TDS, typical values can have concentrations ranging from 2355 ± 85 mg*L −1 to 10,000 ± 800 mg*L −1 [ 9 , 37 , 39 , 42 , 61 , 62 ]; high concentrations have been recorded that can be between 10,560 ± 78 mg*L −1 and 72,400 ± 0.10 mg*L −1 [ 35 , 40 , 53 , 54 , 55 , 63 ]; as for BOD, the average values can be in low ranges from 160 ± 15.8 mg*L −1 to 1250 ± 38 mg*L −1 [ 37 , 39 , 61 , 63 ] and in high ranges that fluctuate between 1500 ± 41 mg*L −1 and 6000 ± 30 mg*L −1 [ 9 , 49 , 50 , 51 , 53 , 54 , 55 ]. In relation to the total chromium concentration, values ranging from 0.83 ± 0.028 mg*L −1 to 134 ± 5.8 mg*L −1 have been reported [ 9 , 35 , 38 , 40 , 61 , 64 ], as well as high ranges from 147.4 ± 1.5 to 3800 ± 115 mg*L −1 [ 35 , 37 , <...>…”

Section: Pollutant Loads From Tannery Wastewatersmentioning

confidence: 99%

Advanced Oxidation Processes and Biotechnological Alternatives for the Treatment of Tannery Wastewater

2021

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The tannery industry is one of the economic sectors that contributes to the development of different countries. Globally, Europe and Asia are the main producers of this industry, although Latin America and Africa have been growing considerably in recent years. With this growth, the negative environmental impacts towards different ecosystem resources as a result of the discharges of recalcitrated pollutants, have led to different investigations to generate alternative solutions. Worldwide, different technologies have been studied to address this problem, biological and physicochemical processes have been widely studied, presenting drawbacks with some recalcitrant compounds. This review provides a context on the different existing technologies for the treatment of tannery wastewater, analyzing the physicochemical composition of this liquid waste, the impact it generates on human health and ecosystems and the advances in the different existing technologies, focusing on advanced oxidation processes and the use of microalgae. The coupling of advanced oxidation processes with biological processes, mainly microalgae, is seen as a viable biotechnological strategy, not only for the removal of pollutants, but also to obtain value-added products with potential use in the biorefining of the biomass.

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Chromium removal from tannery wastewater using Syzygium cumini bark adsorbent

Cited by 39 publications

References 31 publications

Fabrication of MNPs/rGO/PMMA Composite for the Removal of Hazardous Cr(VI) from Tannery Wastewater through Batch and Continuous Mode Adsorption

Fabrication of MNPs/rGO/PMMA Composite for the Removal of Hazardous Cr(VI) from Tannery Wastewater through Batch and Continuous Mode Adsorption

Adsorption efficiency of banana blossom peels (musa acuminata colla) adsorbent for chromium (VI) removal

Advanced Oxidation Processes and Biotechnological Alternatives for the Treatment of Tannery Wastewater

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