Comparative life-cycle assessment of pyrolysis processes for producing bio-oil, biochar, and activated carbon from sewage sludge

Resources Conservation and Recycling, Год журнала: 2022, Номер 181, С. 106273 - 106273

Опубликована: Март 8, 2022

Язык: Английский

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A review on magnetic biochar for the removal of heavy metals from contaminated soils: Preparation, application, and microbial response

Journal of Hazardous Materials Advances, Год журнала: 2023, Номер 10, С. 100254 - 100254

Опубликована: Фев. 11, 2023

Magnetic biochar has recently received much attention due to its magnetic separation capabilities. Additionally, makes an excellent soil amendment, making it increasingly appealing choice for the remediation of heavy metals in contaminated soils. However, explanation raw ingredients and procedures synthesizing lacks a complete analysis review biochar's influence factors, mechanism, microbial response remove from soil. Here, we provide detailed summary processing techniques needed make biochar. Generally, can be made same materials as with precursors. biochars produced several techniques, including ball milling, co-precipitation, hydrothermal carbonization, microwave pyrolysis, impregnation-pyrolysis. Then, factors influencing removal metal contamination by adsorption mechanism are described. The intrinsic properties metals, properties, feedstock, pyrolysis temperature, dosing amount significantly affected immobilization mechanisms include ion exchange, surface/co-precipitation, physical adsorption, complexation functional groups, π-π interactions, electrostatic attraction, oxidation-reduction. reaction physicochemical (pH, TOC/DOC/Biomass C, etc.) microorganisms addition were also highlighted. Finally, helpful recommendations future paths research offered, which had small positive impact on growth

Язык: Английский

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Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

Heliyon, Год журнала: 2022, Номер 8(8), С. e10114 - e10114

Опубликована: Авг. 1, 2022

Direct biomass usage as a renewable fuel source and substitute for fossil fuels is discouraging due to high moisture, low energy density bulk density. Herein, thermogravimetric analysis (TGA) was conducted at various heating rates determine peak decomposition temperatures the dried cassava peels (DCP). The influence of pyrolysis temperature (300, 400, 500 600 °C) (10, 20 30 °C/min) on nickel nanoparticles catalyzed DCP produce biochar, bio-oil biogas investigated characterized. results revealed higher biochar (CBC) yield 68.59 wt%, 62.55 wt% 56.92 lower 300 °C different 10, °C/min. carbon content 52.39, 53.30 55.44 obtained elevated °C/min, respectively. At optimum (24.35, 17.69 18.16 wt%) (31.35, 42.03 46.12 were attained. A value (HHV) 28.70 MJ/kg °C. Through TGA, FTIR HRSEM results, thermal stability, hydrophobicity structural changes CBC samples established. Similarly, stability increased with increasing temperature. Biochar properties produced highest (HHV). Improved kinematic viscosity (3.87 mm2/s) (0.850 g/cm3) reported rate while pH (4.96), HHV (42.68 MJ/kg) flash point (53.85 min) presented by Hence, value-added energy.

Язык: Английский

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Effects of the COVID-19 pandemic on the environment, waste management, and energy sectors: a deeper look into the long-term impacts

Environmental Science and Pollution Research, Год журнала: 2022, Номер 29(31), С. 46438 - 46457

Опубликована: Май 2, 2022

Язык: Английский

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Phenolic-rich bio-oil production by microwave catalytic pyrolysis of switchgrass: Experimental study, life cycle assessment, and economic analysis

Journal of Cleaner Production, Год журнала: 2022, Номер 366, С. 132668 - 132668

Опубликована: Июнь 17, 2022

Язык: Английский

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Co-pyrolysis of sewage sludge and biomass for stabilizing heavy metals and reducing biochar toxicity: A review

Environmental Chemistry Letters, Год журнала: 2022, Номер 21(2), С. 1231 - 1250

Опубликована: Дек. 19, 2022

Abstract The huge amounts of sewage sludge produced by municipal wastewater treatment plants induce major environmental and economical issues, calling for advanced disposal methods. Traditional methods increase greenhouse gas emissions pollution. Moreover, biochar created from often cannot be used directly in soil applications due to elevated levels heavy metals other toxic compounds, which alter biota earthworms. This has limited the application sludge-derived as a fertilizer. Here, we review biomass co-pyrolysis with focus on stabilization toxicity reduction biochar. We observed that co-pyrolyzing materials reduced metal concentrations decreased risk up 93%. Biochar could enhance reproduction stimulation 20‒98%. Heavy immobilization transformation are controlled co-feed material mixing ratio, pyrolysis temperature, atmosphere.

Язык: Английский

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Multifunctional carboxymethyl cellulose sodium encapsulated phosphorus-enriched biochar composites: Multistage adsorption of heavy metals and controllable release of soil fertilization

Chemical Engineering Journal, Год журнала: 2022, Номер 453, С. 139809 - 139809

Опубликована: Окт. 17, 2022

Язык: Английский

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Sludge-based activated carbon and its application in the removal of perfluoroalkyl substances: A feasible approach towards a circular economy

Chemosphere, Год журнала: 2022, Номер 294, С. 133707 - 133707

Опубликована: Янв. 20, 2022

Язык: Английский

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Biofuel production by co-pyrolysis of sewage sludge and other materials: a review

Environmental Chemistry Letters, Год журнала: 2022, Номер 21(1), С. 153 - 182

Опубликована: Сен. 5, 2022

Язык: Английский

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Microplastic removal from urban stormwater: Current treatments and research gaps

Journal of Environmental Management, Год журнала: 2022, Номер 317, С. 115510 - 115510

Опубликована: Июнь 14, 2022

Язык: Английский

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