Evaluation of environmental aspects of brew waste-based carbon production and its disposal scenario

Suganya, S.; Kumar, Pankaj

doi:10.1016/j.jclepro.2018.08.143

Cited by 23 publications

(12 citation statements)

References 23 publications

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“…The steps involving feedstock production, feedstock logistics, and AC logistics presented low environmental impacts (0-6.4%). In another study [49], the authors demonstrated that the production of AC from brewery waste, at laboratory scale, complies with the ISO 14040 standard on LCA.…”

Section: Introductionmentioning

confidence: 78%

“…Concerning the environmental impact on the preparation of AC, to our knowledge, there are no published studies examining the environmental impact of the preparation of AC from ground rubber feedstock from a Life Cycle Assessment (LCA) perspective. However, some studies [48,49] on the environmental impact of the preparation of AC, using other types of waste as feedstock, are available in the literature. In one study [48], the authors have found that the environmental impacts of the preparation of AC, at laboratory scale, are mainly dominated by the activation process, specifically the impregnation step, due to the use of a chemical activation agent.…”

Section: Introductionmentioning

confidence: 99%

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Potential Valorization of Waste Tires as Activated Carbon-Based Adsorbent for Organic Contaminants Removal

Frikha

Limousy

Claret³

et al. 2022

Materials

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The present study investigates the potential of waste tires to produce a valuable adsorbent material for application in wastewater treatment. In the first stage, the pyrolysis of ground rubber tire was explored using non-isothermal and isothermal thermogravimetric analysis experiments. The effect of operating parameters, such as heating rate and pyrolysis temperature, on the pyrolysis product yields was considered. The slow pyrolysis of ground rubber tire was taken up in a large-scale fixed-bed reactor for enhanced char recovery. Four pyrolysis temperatures were selected by thermogravimetric data. The product yields were strongly influenced by the pyrolysis temperature; at higher temperatures, the formation of more gases and liquid was favored, while at lower pyrolysis temperatures, more char (solid fraction) was formed. The produced chars were characterized in terms of mineral composition, textural properties, proximate analysis, and structural properties to identify the relationships between the pyrolysis temperature and the char properties. In a second step, a series of activated chars were prepared, starting from the pyrolytic chars via chemical and/or physical activation methods. Then, the activated chars were characterized and tested as adsorbents for atrazine and ibuprofen. Adsorption experiments in aqueous media were carried out in a small-scale batch reactor system. Chemical activation seems appropriate to significantly reduce the inorganic compounds initially present in ground rubber tire and contribute to an important increase in the surface area and porosity of the chars. Adsorption experiments indicated that chemically activated chars exhibit high aqueous adsorption capacity for atrazine.

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Section: Introductionmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Potential Valorization of Waste Tires as Activated Carbon-Based Adsorbent for Organic Contaminants Removal

Frikha

Limousy

Claret³

et al. 2022

Materials

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“…Techno‐economic analysis and LCA were performed on the activated carbon production and its utilization as an adsorbent material for toxic gases. There were several adsorption studies about TEA and LCA using bio‐waste activated carbon . The levelized cost considering the equipment operating cost and operation efficiency/performance was used to investigate the potential trade‐offs and overall AC production costs .…”

Section: Experimental Apparatus and Experimental Proceduresmentioning

confidence: 99%

Utilization of cocoa activated carbon for trimethylamine and hydrogen sulfide gas removals in a confined space and its techno‐economic analysis and life‐cycle analysis

Wang

Nam

2019

Env Prog and Sustain Energy

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In this study, a removal technique of porous activated carbon filter was developed using copper impregnated on commercially available cocoa activated carbon (Cu/AC) for the removal of toxic pollutant gases (trimethylamine [TMA] and hydrogen sulfide [H2S]). Cu/AC (filter) was characterized with Scanning electron microscope (SEM), Energy dispersive X‐ray spectroscopy (EDS), Thermogravimetric analysis (TGA)/Differential thermal analysis, proximate analysis, Carbon, hydrogen, nitrogen, sulfur (CHNS)/O, and Brunauer–Emmett–Teller, the results indicated the Cu/AC possesses good physical and chemical characteristics and is suitable for adsorption of air pollutants. The Cu/AC filter exhibited excellent adsorption capacity for the removal of TMA (qe = 654.8 mg/g) and H2S (qe = 220.37 mg/g). The isotherm and kinetic models were applied to analyze the adsorption properties and adsorption mechanism. Langmuir isotherm showed best fit for the adsorption of TMA and H2S, whereas the pseudo‐first‐ and second‐order kinetic models best fitted in describing the adsorption of H2S and TMA, respectively. Also, the adsorption process for the removal of TMA and H2S was controlled by the intraparticle diffusion model. The H2S‐adsorbed Cu/AC filter can be regenerated but not lasting too many cycles. Techno‐economic analysis and life‐cycle analysis (LCA) were performed at a plant scale. Production costs were ¢1.37 for cocoa AC filter and ¢10.13 for activated rice husk (ARH) filter. Also, the LCA result for during the filter production was estimated to be 2.52 kg CO2‐eq for cocoa AC filter and 4.47 kg CO2‐eq for ARH filter. This study proves the competitiveness compared to ARH filter of the previous study in the adsorption performance and the filter production cost.

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“…The life cycle studies help scrutinize each input and output parameter along with areas that could be improved during carbon manufacturing. Several studies have dealt with the activation of biomass 14‐19 . Physical activation has shown lesser environmental impacts compared to chemical activation.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have dealt with the activation of biomass. [14][15][16][17][18][19] Physical activation has shown lesser environmental impacts compared to chemical activation. Several LCA studies have reported AC production using H 3 PO 4 as dehydrating agent.…”

mentioning

confidence: 99%

Life cycle assessment as a comparison tool for activated carbon preparations and biomethane storage for vehicular applications

Adlak

Chandra

Kumar

et al. 2022

Intl J of Energy Research

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The term "future material" is referred for activated carbons (AC) due to their easy/scalable preparation, compatible property, and numerous applications. The applications of such materials for gas adsorption and storage play a vital role in the large-scale feasibility of adsorbed gas storage. This could provide a better alternative to compression-based storage for vehicular applications due to lower energy and materials input. Currently, compression-based storage has been thoroughly studied and widely used; however, there are limited reports on LCA. In this paper, a lifecycle-based approach has been deployed for chemically activated carbon (CAC) production using KOH and compared with inventory-based physically activated carbon (PAC). The PACs have a far lesser impact than the CACs mainly owing to the chemicals used. Potassium hydroxide and electricity account for nearly 70 to 90% of different ecotoxicity indicators. It has also been estimated that if by-products generated using chemicals are recovered, the mid-

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Evaluation of environmental aspects of brew waste-based carbon production and its disposal scenario

Cited by 23 publications

References 23 publications

Potential Valorization of Waste Tires as Activated Carbon-Based Adsorbent for Organic Contaminants Removal

Potential Valorization of Waste Tires as Activated Carbon-Based Adsorbent for Organic Contaminants Removal

Utilization of cocoa activated carbon for trimethylamine and hydrogen sulfide gas removals in a confined space and its techno‐economic analysis and life‐cycle analysis

Life cycle assessment as a comparison tool for activated carbon preparations and biomethane storage for vehicular applications

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