Mesoporous and adsorptive properties of palm date seed activated carbon prepared via sequential hydrothermal carbonization and sodium hydroxide activation

The addition of powdered activated carbon (PAC) to activated sludge treatment systems to enhance removal of specific toxic organic compounds from wastewater was evaluated. Nine organic compounds encompassing a range of solubility, volatility, biodegradability, and adsorptive properties were studied. Kate and equilibrium investigations were conducted to quantify the removal mechanisms of volatilization, biodegradation, biosorption, and carbon adsorption. Results from steady-state bioreactor studies showed that the addition of less than 100 mg/ℓ powdered activated carbon to the influent did not enhance the removal of the biodegradable target compounds investigated: benzene, toluene, ethylbenzene, o-xylene, chlorobenzene, and nitrobenzene. Significantly improved removals of the poorly degradable and non-biodegradable compounds 1,2-dichlorobenzene, 1,2,4-trichlorobenzene, and lindane occurred at influent powdered carbon concentrations in the 12.5 to 25 mg/ℓ range. Influent powdered carbon concentrations of 100 mg/ℓ effected overall removals of greater than 90%. The addition of powdered activated carbon not only reduced effluent concentrations but also reduced the amounts of the volatile compounds stripped to the atmosphere.

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Modification of activated carbon using sodium acetate and its regeneration using sodium hydroxide for the adsorption of copper from aqueous solution

Carbon ◽

10.1016/j.carbon.2006.12.009 ◽

2007 ◽

Vol 45 (5) ◽

pp. 1081-1084 ◽

Cited By ~ 31

Author(s):

Dan Mugisidi ◽

Aria Ranaldo ◽

Johny W. Soedarsono ◽

Muhammad Hikam

Keyword(s):

Aqueous Solution ◽

Activated Carbon ◽

Sodium Hydroxide ◽

Sodium Acetate

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Novel aluminium (hydr) oxide-functionalized activated carbon derived from Raffia palm (Raphia hookeri) shells: Augmentation of its adsorptive properties for efficient fluoride uptake in aqueous media

Environmental Chemistry and Ecotoxicology ◽

10.1016/j.enceco.2021.03.003 ◽

2021 ◽

Author(s):

Raphael T. Iwar ◽

Oliver T. Iorhemen ◽

Kola' Ogedengbe ◽

Kamil Kayode Katibi

Keyword(s):

Activated Carbon ◽

Aqueous Media ◽

Fluoride Uptake ◽

Raphia Hookeri ◽

Adsorptive Properties

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Temperature Dependent On Activated Carbon For Their Biological Activity And Photocatalytical Degradation of Methylene Blue: A Novel Approach To Green Synthesis

10.21203/rs.3.rs-792713/v1 ◽

2021 ◽

Author(s):

Amalanathan.M ◽

Aravind.M ◽

Sony Michael Mary.M ◽

Razan A. Alshgari ◽

Asma A. Alothman ◽

...

Keyword(s):

Methylene Blue ◽

Antibacterial Activity ◽

Activated Carbon ◽

Hydrothermal Carbonization ◽

Microbial Pathogens ◽

X Ray Diffraction ◽

E Coli ◽

Novel Approach ◽

Transmission Electron ◽

Ft Ir

Abstract In this work, jasmine flower derived activated carbon were successfully synthesized by hydrothermal carbonization process at the different annealing temperature. The Crystallinity, phase, structural, morphological and optical properties of activated carbon were investigated using X-ray diffraction (XRD), Fourier Transform Infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM), Transmission electron microscope (TEM), and UV-visible spectroscopy analysis. The graphitic phase of carbon was obtained from the XRD pattern. Surface morphology reveals irregular-shaped nanoparticles. The photodegradation of methylene blue (MB) was carried out under the visible light irradiation technique to study its photocatalytic activity. The activated carbon obtained at 400oC, 500oC and 600oC shows a photocatalytic degradation efficiency of 86%, 90%, and 94%, respectively. Antibacterial activity of activated carbon was examined against S. Aureus (MTCC-737) and E-Coli (MTCC- 443) microbial pathogens, and their potent antibacterial activity was examined from the zone of inhibition layer.

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An Environmentally Friendly Technology for Biomass Production Hydorchar from Renewable Resources

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.726-731.634 ◽

2013 ◽

Vol 726-731 ◽

pp. 634-637 ◽

Cited By ~ 2

Author(s):

Yan Qiu Lei ◽

Hai Quan Su

Keyword(s):

Activated Carbon ◽

Reaction Time ◽

Adsorption Capacity ◽

Functional Groups ◽

Biomass Production ◽

Renewable Resources ◽

Environmentally Friendly ◽

Hydrothermal Carbonization ◽

Removal Rates

A green and sustainable route for preparation of hydrochars from cornstalk by hydrothermal carbonization (200°C) was described. The morphology of the hydrochars changed with reaction time increased, the surface of the materials contained a large number of functional groups, showed higher adsorption capacity for Cr (VI) than activated carbon and the removal rates of Cr (VI) were 67% and 29% respectively (pH=1, 20°C).

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Activated Carbon from Winemaking Waste: Thermoeconomic Analysis for Large-Scale Production

Energies ◽

10.3390/en13236462 ◽

2020 ◽

Vol 13 (23) ◽

pp. 6462

Author(s):

Isaac Lorero ◽

Arturo J. Vizcaíno ◽

Francisco J. Alguacil ◽

Félix A. López

Keyword(s):

Activated Carbon ◽

Heat Exchangers ◽

Large Scale ◽

Activated Carbons ◽

Hydrothermal Carbonization ◽

Thermodynamic Efficiency ◽

Physical Activation ◽

Scale Production ◽

Production Scale ◽

Costs Analysis

An activated carbon manufacturing process from winemaking waste is analyzed. In that way, vine shoots conversion is studied as a basis for plant designing, and mass and energy balances of hydrothermal carbonization and physical activation are fulfilled. To develop an energy-integrated plant, a network of heat exchangers is allocated to recover heat waste, and a cogeneration cycle is designed to provide electricity and remaining heat process demands. Furthermore, thermoeconomic analysis is applied to determine the thermodynamic efficiency and the economic viability of the plant. Energy balance indicates that heat exchangers energy integration covers 48.9% of the overall demands by crossing hot and cold streams and recovering heat from residual flue gas. On the other hand, the exergy costs analysis identifies combustion of pruning wood as the main source of exergy destruction, confirming the suitability of the integration to improve the thermodynamic performance. Attending to economic costs analysis, production scale and vineyard pruning wood price are identified as a critical parameter on process profitability. With a scale of 2.5 ton/h of pruning wood carbonization, a break-event point to compete with activated carbons from biomass origin is reached. Nevertheless, cost of pruning wood is identified as another important economic parameter, pointing out the suitability of wet methods such as hydrothermal carbonization (HTC) to treat them as received form the harvest and to contribute to cutting down its prices.

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Catalytic activation and application of micro-spherical carbon derived from hydrothermal carbonization of lignocellulosic biomass: statistical analysis using Box–Behnken design

RSC Advances ◽

10.1039/c5ra26189a ◽

2016 ◽

Vol 6 (104) ◽

pp. 102680-102694 ◽

Cited By ~ 12

Author(s):

Z. Z. Chowdhury ◽

S. B. Abd Hamid ◽

Md. M. Rahman ◽

R. F. Rafique

Keyword(s):

Activated Carbon ◽

Statistical Analysis ◽

Potassium Hydroxide ◽

Chemical Activation ◽

Hydrothermal Carbonization ◽

Corchorus Olitorius ◽

Box Behnken Design ◽

Catalytic Activation ◽

Spherical Carbon ◽

Physico Chemical

Activated carbon was produced by physico-chemical activation of hydrothermally carbonized dried stem derived from Corchorus olitorius, commonly known as Jute (JS), using potassium hydroxide (KOH) as an activation agent.

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