Fabrication of biochars obtained from valorization of biowaste and evaluation of its physicochemical properties

Narzari, Rumi; Bordoloi, Neonjyoti; Sarma, Banashree; Gogoi, Lina; Gogoi, Nirmali; Borkotoki, Bikram; Kataki, Rupam

doi:10.1016/j.biortech.2017.04.050

Cited by 69 publications

(29 citation statements)

References 16 publications

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“…All biochars of this study exhibited R50 > 0.7, classified as class A (Harvey et al 2012), indicating recalcitrant material resistant to soil degradation. The increase in R50 values with an increase in pyrolysis temperature was consistent with those observed in other studies (Kupryianchyk et al 2016;Narzari et al 2017).…”

Section: Thermogravimetric Analysissupporting

confidence: 92%

“…Overall, the biochars exhibited an initial range of mass loss at < 150 °C, corresponding to the loss of water Fig. 2 TGA of acai (A); Brasil nutshell (B) and palm kernel (C) biochars produced at different pyrolysis temperatures (400, 500, 600 and 700 °C) and volatile compounds (Narzari et al 2017). In the biochar produced at 400 and 500 °C, cellulose degradation (Chowdhury et al 2016) occurred in the temperature range of 150-350 °C, while for the biochar produced at 600 and 700 °C, this degradation occurred in the temperature range of 150-450 °C.…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

“…The degradation of lignin and other fractions occurred at temperatures above 350 °C in the pyrolysis process at 400 and 500 °C, and occurred above 450 °C in the pyrolysis process at 600 and 700 °C. The degradation of cellulose and lignin at low temperatures occurs because of the organic residues still present in the biochar matrix (Narzari et al 2017). Biochar with high stability associated with the ability to adsorb metals is an important criterion in remediation studies of contaminated areas (Melo et al 2013).…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

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Biochar produced from Amazonian agro-industrial wastes: properties and adsorbent potential of Cd2+ and Cu2+

Dias

Souza

Costa

et al. 2019

Biochar

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In the Amazon region, several residues that have been misused can serve as feedstocks for biochar production with the aim of recovering soils contaminated by heavy metals. However, these biochars need to be firstly tested for their adsorption capacity as well as their physicochemical attributes prior to field application. Therefore, this study aimed to characterize and evaluate the adsorption capacities of Cd 2+ and Cu 2+ of biochars produced from acai (BA), Brazil nut (BN), and palm kernel cake (BK) residues. Biochars were produced by slow pyrolysis at four different temperatures (400, 500, 600, and 700 °C). The physicochemical properties of the biochars, such as cation exchange capacity, ash, recalcitrance index, and aromaticity were enhanced with increased pyrolysis temperature. The adsorption capacities of Cd 2+ and Cu 2+ showed high correlations with the physicochemical properties of biochar, indicating the importance of these characteristics in the adsorption process. Furthermore, the adsorption of Cd 2+ and Cu 2+ also increased with the increase in the pyrolysis temperature. In a competitive system, Cd 2+ exhibited higher adsorption capacity than Cu 2+ for all biochars. In general, BN showed the highest adsorption capacity, followed by BK and BA. Biochars produced from the Amazonian residues have the potential to improve soil quality when used as amendments in the recovery of soils contaminated with Cd and Cu, representing an environmentally sound technology for the reuse of these residues.

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Section: Thermogravimetric Analysissupporting

confidence: 92%

Section: Thermogravimetric Analysismentioning

confidence: 99%

Section: Thermogravimetric Analysismentioning

confidence: 99%

See 1 more Smart Citation

Biochar produced from Amazonian agro-industrial wastes: properties and adsorbent potential of Cd2+ and Cu2+

Dias

Souza

Costa

et al. 2019

Biochar

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“…Parthenium biomass on pyrolysis in a fixed bed reactor produces a low quantity of bio-oil (6.3%) as compared to rice husk (31.87%) but the calorific value of parthenium bio-oil is more than that of rice husk derived bio-oil (Mythili et al 2013). Pyrolysis of parthenium biomass leading to biochar formation is performed by Narzari et al(2017) having a maximum yield at 350 °C (28.52%) with gradually decreasing yield with an increase in pyrolysis temperature. Since considerable work has been done on the bio-energy aspect of parthenium, it may be considered as a positive control in this study.…”

Section: Introductionmentioning

confidence: 99%

Agro-residues and weed biomass as a source bioenergy: Implications for sustainable management and valorization of low-value biowastes

Deb

Bhuyan

Bhattacharya

et al. 2019

Int. J. Renew. Energy Dev.

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Biomass resources are gaining increasing importance world over due to their ease of conversion to various energy product in the face of depleting fossil fuel store and increasing environmental concerns over their use. The present work elucidates different physico-chemical properties of three biomasses, paddy straw (PS)- an agricultural residue, spent paddy straw obtained after mushroom cultivation (SS), and a noxious weed (Parthenium hysterophorus; PR) to understand their properties and to explore the feasibility of using them as feedstocks in different biomass to bioenergy conversion routes. In addition to physico-chemical analysis, biochemical analysis of these biomasses along with XRD, thermogravimetric analysis, FTIR and SEM analysis have been carried out. Present study suggests that PS is a better choice as feedstock compared to both PR and SS. The calorific value to ash content ratio is more in PS (1.13) as compared to PR (1.06) and SS (0.84). Thus, it may be inferred that the biomasses in question are at par with commonly used bio-energy feedstocks like sugarcane bagasse and corn cob. ©2019. CBIORE-IJRED. All rights reserved

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“…In order to follow the EU dictates, several studies in this topic are involved in the valorization of biowaste as starting materials for the production of new value-added products, such as fine chemicals [15][16][17], polymeric (mostly bioplastics) and composite materials [4,[18][19][20][21], carbonaceous materials and biochars [22][23][24][25], biofuels, and/or biogas [26][27][28][29][30]. In this context, composting consists of an (an)aerobic biological process for decomposing the organic fraction into a more stabilized material with different properties that depend on the initial composition [11] and composting methodologies.…”

Section: Introductionmentioning

confidence: 99%

Isolation, Characterization, and Environmental Application of Bio-Based Materials as Auxiliaries in Photocatalytic Processes

et al. 2018

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Sustainable alternative substrates for advanced applications represent an increasing field of research that attracts the attention of worldwide experts (in accordance with green chemistry principles). In this context, bio-based substances (BBS) isolated from urban composted biowaste were purified and characterized. Additionally, these materials were tested as auxiliaries in advanced oxidizing photocatalytic processes for the abatement of organic contaminants in aqueous medium. Results highlighted the capability of these substances to enhance efficiency in water remediation treatments under mild conditions, favoring the entire light-driven photocatalytic process.

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Fabrication of biochars obtained from valorization of biowaste and evaluation of its physicochemical properties

Cited by 69 publications

References 16 publications

Biochar produced from Amazonian agro-industrial wastes: properties and adsorbent potential of Cd2+ and Cu2+

Biochar produced from Amazonian agro-industrial wastes: properties and adsorbent potential of Cd2+ and Cu2+

Agro-residues and weed biomass as a source bioenergy: Implications for sustainable management and valorization of low-value biowastes

Isolation, Characterization, and Environmental Application of Bio-Based Materials as Auxiliaries in Photocatalytic Processes

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