Results 21 to 30 of about 388,983 (311)

Renewable activated carbon from wood-based gasification char: A comprehensive study on physical activation

Carbon Resources Conversion
Wood gasification produces gasification char (GC), a carbonaceous by-product with limited sustainable valorisation strategies. The physical activation of wood-based GC as a precursor has received insufficient attention, likely due to the inherent ...
David Gurtner, Jan O. Back, Dominik Bosch, Angela Hofmann, Christoph Pfeifer   +4 more
doaj   +1 more source

Methylene Blue Adsorption by Activated Carbon and Nano–Activated Carbon from Biomass Waste: A Review

Jurnal Presipitasi, 2022
Dyes are becoming increasingly prevalent in wastewater, and their presence caused serious threats to the environment. One of the most widely used dyes is methylene blue which has been used in the textile industry to dye cotton, wool, and silk.
Mindriany Syafila, Qomarudin Helmy, Akhmad Masykur Hadi Musthofa   +2 more
doaj   +1 more source

Degradation of paracetamol by catalytic wet air oxidation and sequential adsorption - Catalytic wet air oxidation on activated carbons [PDF]

, 2012
The concern about the fate of pharmaceutical products has raised owing to the increasing contamination of rivers, lakes and groundwater. The aim of this paper is to evaluate two different processes for paracetamol removal. The catalytic wet air oxidation
Quesada-Peñate, Isariebel, Wilhelm, Anne-Marie, Julcour-Lebigue, Carine, Jáuregui Haza, Ulises Javier, Delmas, Henri, Jauregui-Haza, Ulises J.   +5 more
core   +1 more source

Self-sustained physical activation at pilot-scale integrated in a commercial wood gasification plant: A path to renewable activated carbon, PAH removal and electrical efficiency improvement

Fuel Processing Technology
A pilot-scale reactor for self-sustained physical activation was integrated into an industrial wood gasification plant (300kWel) with the aim of upgrading its carbon-rich by-product, gasification char (GC).
D. Gurtner, M. Kresta, M. Maurer, J. Haselwanter, A. Hofmann, C. Pfeifer   +5 more
doaj   +1 more source

Preparation and characterization of activated carbon from agricultural wastes and their ability to remove chlorpyrifos from water

Toxicology Reports, 2023
Chlorpyrifos is an organophosphate insecticide linked to neurological dysfunctions, endocrine disturbance, cardiovascular illness, genotoxicity, histopathological abnormalities, immunotoxicity, and oxidative stress.
Omaima A. Hussain, Amal S. Hathout, Yasmin E. Abdel-Mobdy, M.M. Rashed, E.A. Abdel Rahim, A.S.M. Fouzy   +5 more
doaj   +1 more source

Gasification chars and activated carbon: Systematic physico-chemical characterization and effect on biogas production

Heliyon
Gasification residues/chars (GR) and activated carbon (AC) are added to wastewater treatment processes mainly as a fourth purification stage, e.g., to adsorb heavy metals or pharmaceutical residues. However, the effects of GR or AC, which are transferred
Christian Margreiter, Maraike Probst, Eva Maria Prem, Angela Hofmann, Andreas Otto Wagner   +4 more
doaj   +1 more source

Estimation of Activation Energy of Desorption of n-Hexanol from Activated Carbons by the TPD Technique

Adsorption Science & Technology, 2003
Activated carbon and five kinds of metal-ion-substituted activated carbons, viz. Ag + -activated carbon, Cu 2+ -activated carbon, Fe 3+ -activated carbon, Ba 2+ -activated carbon and Ca 2+ -activated carbon, were prepared.
Zhong Li, Hongjuan Wang, Hongxia Xi, Qibin Xia, Jinglei Han, Lingai Luo   +5 more
doaj   +1 more source

Potentials of algae-based activated carbon for the treatment of M.orange in wastewater

Case Studies in Chemical and Environmental Engineering, 2023
Activated carbon is a promising material with high efficiency in dye removal from polluted wastewater. However, commercial activated carbon is expensive and generates black color in the medium.
Sh Husien, Reem M. El-taweel, Nora Mohamed, A.B. Abdel-Aziz, KhloodA. Alrefaey, Salma Osama Elshabrawey, Nagwan G. Mostafa, Lobna A. Said, Irene Samy Fahim, Ahmed G. Radwan   +9 more
doaj   +1 more source

Integrated process for production of surfactin Part 1: Adsorption rate of pure surfactin onto activated carbon [PDF]

, 2007
The work reported in this paper is aimed at studying the adsorption of surfactin from aqueous solution onto activated carbon. Among the factors,agitation rate, activated carbon particle-size, pH, temperature, initial adsorbate concentration, adsorbent ...
Nikov, Iordan, Montastruc, Ludovic, Gancel, Frédérique, Zhao, Ling, Liu, Tao   +4 more
core   +1 more source

Experimental study and characterisation of a novel two stage bubbling fluidised bed gasification process utilising municipal waste wood

Fuel Processing Technology
Biomass gasification has increased due to its ability to provide high-temperature heat, making it promising for the decarbonisation of industrial processes.
M. Kresta, D. Gurtner, L. Nohel, A. Hofmann, C. Pfeifer   +4 more
doaj   +1 more source