Biodegradation of methylene blue dye in a batch and continuous mode using biochar as packing media

Bharti, Vikash; Vikrant, Kumar; Goswami, Mandavi; Tiwari, Himanshu; Sonwani, Ravi Kumar; Lee, Jechan; Tsang, Daniel C.W.; Kim, Ki‐Hyun; Saeed, Mοhd; Kumar, Sunil; Nath, Birendra; Giri, Balendu Shekher; Singh, Ram Sharan

doi:10.1016/j.envres.2019.01.051

Cited by 187 publications

(51 citation statements)

References 46 publications

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“…2, meaning that dye is another kind of organic pollutant with frequent discussion in 2019. Every year, more than 280,000 tons of synthetic dyes produced from industrial activity were discharged into water bodies globally, posing a severe threat to the environment (Bharti et al 2019;Yudha et al 2019). Adsorption and photodegradation are the most commonly used methods for the treatment of dye wastewater.…”

Section: Organic Pollutants Removalmentioning

confidence: 99%

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Visualizing the emerging trends of biochar research and applications in 2019: a scientometric analysis and review

Wang

et al. 2020

Biochar

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Biochar, derived from thermal pyrolysis of biomass, has been regarded as a low-cost, sustainable and beneficial material and widely applied in agriculture, environment and energy during the last two decades. To elucidate the research status timely and future trends in biochar field, CiteSpace is used to systematically analyze the related literature retrieved from the Web of Science core collection in 2019. Based on the keywords clustering analysis, it was found that "biochar production", "organic pollutants removal", "heavy metals immobilization", "bioremediation" were the main hotspots in research covering biochar. "Bioremediation" is an emerging topic and deserves extensive attention due to its highly effective and environmentally friendly treatment of pollutants. Improving the phytoremediation effect, immobilizing functional microorganisms on biochar, and using microorganisms as raw materials to produce biochar were the common methods of biochar-assisted bioremediation. While studies focused on "soil quality and plant growth" and "biochar and global climate change" decreased, investigations concentrated in the toxicity of biochar to soil biota and ruminants are sustainably growing. Research on direct and catalytic thermal pyrolysis of green waste (mainly microalgae) for biofuels (bio-oil, biodiesel, syngas, etc.) and biochar production is increasing. Converting municipal wastes (e.g., sewage sludge, fallen leaves) into biochar through pyrolysis was a suitable treatment for municipal waste and became a popular topic in recent time. Moreover, the biochar produced from these municipal wastes exhibited excellent performance in the removal of pollutants from wastewater and soil. This review may help to identify future directions in biochar research and applications.

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Section: Organic Pollutants Removalmentioning

confidence: 99%

“…The microorganism immobilization technology based on biochar brings advantages of highly efficient removal of pollutants, cost-effective, without secondary pollution, etc. (Bharti et al 2019;Lou et al 2019). It is believed that this novel modification method would broaden biochar's application in wastewater treatment and soil remediation.…”

Section: Introductionmentioning

confidence: 99%

Visualizing the emerging trends of biochar research and applications in 2019: a scientometric analysis and review

Wang

et al. 2020

Biochar

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“…Biochar from Casuarina equisetifolia for removal of methylene blue dye was estimated around 0.9$/kg [67]. Thus, from the above cited literature, it can be observed that the biochar used in the present study is quite comparative with the ones reported in the literature.…”

Section: Proposed As(iii) Removal Mechanismmentioning

confidence: 48%

Batch and continuous reactor studies for the adsorption of As(III) from wastewater using a hybrid biochar loaded with transition metal oxides: Kinetics and mass transfer analysis

Gupta

Giri

Rene

et al. 2020

Environmental Engineering Research

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As(III) presence in low concentration (1-5 mg/L) in water presents a challenging problem in its removal. In the present study, biochar prepared by pyrolysis of mustard cake and loaded with Fe-Mn binary oxides through hydrothermal technique was used for adsorptive removal of As(III) from water in batch and continuous mode. The synthesised biochar exhibited mesoporous structures in the range of 2-50 nm (based on BET analysis). The maximum adsorption capacity (95.7 mg/g) obtained using biochar loaded with both Fe-Mn oxides was found to be 1.4 times higher than that of pristine biochar. The adsorption equilibria was best described by Freundlich isotherm (based on R 2 and χ 2) suggesting that the As(III) adsorption was multilayered. The external mass transfer coefficients (β L = 10-5 cm 2 /s) were observed to be higher than film (D f = 10-7-10-9 cm 2 /s) and intraparticle (D i = 10-9 cm 2 /s) diffusivities in batch mode. In column studies, Thomas model gave the best correlation coefficient (R 2 > 0.95) and the adsorption was limited by external mass transfer. Kinetic rate constant decreased with increase in initial As(III) concentration and flow rate. The oxide loaded biochar exhibited reusability up to three times for As(III) removal.

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“…Regeneration is a desorption or degradation process that aims to reuse or recycle the sorbent material. Dye-saturated biochar materials have been regenerated by solvent desorption (Lian et al 2016;Vyavahare et al 2018), chemical desorption (Bharti et al 2019;Meili et al 2019) and thermal desorption (Zhu et al 2019). Most of these methods are focused on the desorption of the biochar and did not address the further degradation of the dye.…”

Section: Introductionmentioning

confidence: 99%

Degradation of a leather-dye by the combination of depolymerised wood-chip biochar adsorption and solid-state fermentation with Trametes villosa SCS-10

Ortiz-Monsalve

Gutterres

Valente

et al. 2020

Bioresour. Bioprocess.

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Adsorption into biochar-derived materials and mycoremediation are promising technologies for removing dyes from solid and liquid matrices. This study presents a combined treatment with adsorption into wood-chip biochar and mycodegradation under solid-state fermentation by Trametes villosa for removing the leather-dye Acid Blue 161. In the first stage, untreated wood-chip biochar, NaOH–depolymerised biochar and KMnO4–depolymerised biochar were assessed for their dye removal efficiency by adsorption. KMnO4–depolymerised biochar exhibited the highest adsorption (85.1 ± 1.9%) after 24 h of contact. KMnO4–depolymerisation modified some physical and chemical properties on the untreated wood-chip biochar, increasing the surface area (50.4 m2 g–1), pore size (1.9 nm), and presence of surface functional groups. Response surface methodology coupled with a Box–Behnken design was used to optimise the AB161 adsorption into the KMnO4–depolymerised biochar. The optimised conditions, pH 3.0, dye concentration 100 mg L–1 and sorbent dosage 2 g L–1, led to a higher dye removal efficiency by adsorption (91.9 ± 1.0%). In a second stage, the wood-chip biochar supplemented with nutrients (1% malt extract and 0.5% peptone) was employed as a solid matrix for growing T. villosa and regenerating the dye-saturated material. After 15 days, T. villosa was able to grow (86.8 ± 0.8%), exhibit laccase activity (621.9 ± 62.3 U L–1), and biodegrade (91.4 ± 1.3%) the dye adsorbed into the KMnO4–depolymerised biochar. Finally, the mycoregenerated biochar was reutilised in a new cycle of adsorption reaching 79.5 ± 2.0% of dye removal efficiency by adsorption. This study revealed the potential of the combined treatment and is an initial assessment for developing commercial alternatives for treating leather industry wastewaters.

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Biodegradation of methylene blue dye in a batch and continuous mode using biochar as packing media

Cited by 187 publications

References 46 publications

Visualizing the emerging trends of biochar research and applications in 2019: a scientometric analysis and review

Visualizing the emerging trends of biochar research and applications in 2019: a scientometric analysis and review

Batch and continuous reactor studies for the adsorption of As(III) from wastewater using a hybrid biochar loaded with transition metal oxides: Kinetics and mass transfer analysis

Degradation of a leather-dye by the combination of depolymerised wood-chip biochar adsorption and solid-state fermentation with Trametes villosa SCS-10

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