Activated carbon production from industrial yeast residue to boost up circular bioeconomy

Modesto, Helen R.; Lemos, Sherlan G.; Santos, Mikaela S. dos; Komatsu, Jenny S.; Gonçalves, Maraísa; Carvalho, Wagner A.; Carrilho, Elma Neide Vasconcelos Martins; Labuto, Geórgia

doi:10.1007/s11356-020-10458-z

Cited by 17 publications

(7 citation statements)

References 32 publications

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“…Comparing recent works concerned with removing dipyrone through adsorption, 2,15,17‐21 it is noted that the maximum capacity of biomass ash exceeded that of several adsorbents studied in the literature. It should be noted that this is an adsorbent with negligible cost and competitive results.…”

Section: Resultsmentioning

confidence: 98%

Valorization of biomass ash for the effective removal of dipyrone from water: an efficient and low‐cost option

Oliveira

Reck

Resende

et al. 2023

J of Chemical Tech & Biotech

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Background: In order to propose a destination for the bottom ash generated from biomass burning, its morphology, functional groups and mineral phases were studied. Dipyrone has been extensively used as an antipyretic, increased due to cases of COVID-19, and due to excretion by urine, incorrect disposal and industrial effluents has been destined to wastewater, being harmful to human and animal life. The present study proposes using biomass ash for the adsorption of dipyrone.Results: The characterization of biomass ash shows a sufficient surface area size for adsorption, and a mainly amorphous structure with some peaks of quartz, calcite and other mineral phases. The results show that the kinetic model which best describes the adsorption is the pseudo-first-order model. The Langmuir model best fits at 25 °C, and the Freundlich model best describes the adsorption at 35 and 45 °C. The thermodynamic parameters indicated that the process is endothermic with a maximum adsorptive capacity of 65.27 mg g −1 . In addition, the adsorption is spontaneous, disordered and chemical. The ionic strength study reveals that the adsorbent is promising for real effluent treatment and there is evidence that electrostatic interaction is not the primary adsorptive mechanism, agreeing with the result obtained from pH testing. The proposed mechanism for dipyrone removal involves hydrogen bonds, π bonds and electron donor-acceptor complex.Conclusions: The results are promising in comparison with recent literature and solve two environmental problems: biomass bottom ash disposal and pharmaceutical removal in aqueous medium. The ash may be regarded as a low-cost and environmentally friendly adsorbent.

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Section: Resultsmentioning

confidence: 98%

Valorization of biomass ash for the effective removal of dipyrone from water: an efficient and low‐cost option

Oliveira

Reck

Resende

et al. 2023

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…As regards the DIP, it was verified that the adsorptive capacity did not present great changes in the evaluated pH range (17.78–20.27 mg g −1 ). According to Modesto et al (2021) , the DIP has a pKa of 3.77, in which it is deprotonated above this value. However, DIP removal cannot be explained by electrostatic repulsion between the adsorbent and adsorbate since the GAC-GO adsorptive capacity was satisfactory.…”

Section: Resultsmentioning

confidence: 99%

Application of activated carbon functionalized with graphene oxide for efficient removal of COVID-19 treatment-related pharmaceuticals from water

et al. 2022

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“…In turn, value recovery at the raw material acquisition phase, includes the development of bioactive compounds from agricultural waste [38]. Value recovery at the manufacturing phase includes obtaining chemicals of high added-value from the waste from ethanol production [57], creating new products from whey (a by-product from the manufacturing of dairy products) [61], recovery of biocompounds from black liquor (kraft paper production) [49]; recovery of omega-3 from fish oil [60]; production of chemicals, using fast pyrolysis, from eucalyptus fines [50]; production of biocellulose films from scraps of the commercial production of bandages [51], and biochar from coffee silverskin (from coffee processing units) [66]. Value recovery at the end-of-life phase, in turn, includes recovering phosphorus from eggshell [78] and recovering oil from spent coffee grounds (from coffee shops) [66].…”

Section: Value Recovery From Wastementioning

confidence: 99%

Current Panorama, Practice Gaps, and Recommendations to Accelerate the Transition to a Circular Bioeconomy in Latin America and the Caribbean

et al. 2022

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The rampant use of resources and the increasing risk of scarcity have been contributing to greater awareness regarding the need for maintaining resources in use for longer and the shift to renewable alternatives, in which perspective the concept of a circular bioeconomy (CBE) has been permeating the most diverse sectors. Therefore, the study's aims were manifold: identify (i) existing practices and initiatives, (ii) barriers and potential opportunities and (iii) existing gaps for advancing a circular bioeconomy in Latin America and the Caribbean (LAC) and (iv) provide recommendations aiming at the development of a circular bioeconomy (CBE) in the region. To that end, a systematic review of the existing academic literature was done, and reports from relevant non-peer reviewed sources were also consulted. CBE practices in LAC are concentrated in only a few of the countries in the region and very much revolve around recovering value from by-products and waste streams. There are a range of economic, technological, environmental, and social barriers. Opportunities for a CBE are mainly related to the use of waste as raw material (found abundantly in the countries being investigated) and the use of new techniques/technologies. The gaps between the current state and a successful CBE are related to policy, scaling-up, collaborations, and establishing efficient business models. Recommendations for a successful CBE in the region include greater engagement of public actors, investing and developing the local economy, establishing biorefineries and industrial parks, and finding new technological routes for bioresources.

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Activated carbon production from industrial yeast residue to boost up circular bioeconomy

Cited by 17 publications

References 32 publications

Valorization of biomass ash for the effective removal of dipyrone from water: an efficient and low‐cost option

Valorization of biomass ash for the effective removal of dipyrone from water: an efficient and low‐cost option

Application of activated carbon functionalized with graphene oxide for efficient removal of COVID-19 treatment-related pharmaceuticals from water

Current Panorama, Practice Gaps, and Recommendations to Accelerate the Transition to a Circular Bioeconomy in Latin America and the Caribbean

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