Journal ArticleDOI
Regeneration of granular activated carbon saturated with acetone and isopropyl alcohol via a recirculation process under H2O2/UV oxidation.
Richard S. Horng,I.-Chin Tseng +1 more
TLDR
Both pH and solution COD were found to correlate with regeneration completion as measured by organic residue on GAC surfaces in four regeneration cycles with acetone, and both resulted in destruction efficiency of adsorbed acetone on the GAC surface was more than 99%.About:
This article is published in Journal of Hazardous Materials.The article was published on 2008-06-15. It has received 35 citations till now. The article focuses on the topics: Isopropyl alcohol & Acetone.read more
Citations
More filters
Journal ArticleDOI
Activated carbon catalyzed persulfate oxidation of Azo dye acid orange 7 at ambient temperature.
TL;DR: There existed a remarkable synergistic effect in the GAC/PS combined system and SO(4)(-•) or HO•, generated on or near the surface of GAC, played a major role in the AO7 degradation.
Journal ArticleDOI
Recent developments in the preparation and regeneration of activated carbons by microwaves.
Foo Keng Yuen,B.H. Hameed +1 more
TL;DR: Conclusively, microwave energy is predicted to be a potentially viable and powerful replacement for fuel technology in various areas, while its progress represents an expanding field in the area of adsorption science.
Journal ArticleDOI
Activated carbon/Fe3O4 nanoparticle composite: Fabrication, methyl orange removal and regeneration by hydrogen peroxide
Manh Huy Do,Ngoc Hoa Phan,Thi Dung Nguyen,Thi Thu Suong Pham,Van Nguyen,Thi Thuy Trang Vu,Thi Phuong Nguyen +6 more
TL;DR: The regeneration indicated that the presence of the Fe(3)O(4) nanoparticles is important for a achieving high regeneration efficiency by hydrogen peroxide.
Journal ArticleDOI
TiO2/AC Composites for Synergistic Adsorption-Photocatalysis Processes: Present Challenges and Further Developments for Water Treatment and Reclamation
TL;DR: In this article, the authors review the TiO2/AC synthesis techniques, characteristics, and performances in removing organic pollutants in water, and propose a membrane separation process to recover and regenerate TiO 2/AC in various continuous flow-through system configurations.
Journal ArticleDOI
Regeneration of carbonaceous adsorbents. Part II: Chemical, Microbiological and Vacuum Regeneration
Francisco Salvador,Nicolas Martin-Sanchez,Ruth Sánchez-Hernández,M. Jesus Sanchez-Montero,Carmen Izquierdo +4 more
TL;DR: In this article, a double-criterion is proposed to allow clear and rigorous classification of current and future regeneration methods, based on the traditional division which distinguishes among Thermal, Chemical and Microbiological Regeneration, and a fourth major group, Vacuum Regeneration is added.
References
More filters
Book
Standard methods for the examination of water and wastewater
TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
Journal ArticleDOI
Wet air oxidation
TL;DR: Wet air oxidation (WAO), involving oxidation at high temperature (125-320 C) and pressure (0.5-20 MPa) conditions, is useful for the treatment of hazardous, toxic, and nonbiodegradable waste streams as mentioned in this paper.
Journal ArticleDOI
Chemical Oxidation Technologies: Ultraviolet Light/Hydrogen Peroxide, Fenton's Reagent, and Titanium Dioxide-Assisted Photocatalysis
TL;DR: The application status and potential of three chemical oxidation treatment methods which generate powerful oxidants (hydroxyl radicals): ultraviolet light (UV)/hydrogen peroxide (H2O2) process, Fenton's reagent treatment, and titanium dioxide (TiO2)-assisted photocatalytic degradation, are described and discussed in this paper.
Journal ArticleDOI
Iron powder, graphite and activated carbon as catalysts for the oxidation of 4-chlorophenol with hydrogen peroxide in aqueous solution
TL;DR: In this paper, solid materials such as iron powder, graphite and activated carbon were tested for their catalytic properties for the oxidation of 4-chlorophenol in aqueous solution with hydrogen peroxide.
Journal ArticleDOI
Activated Carbon and Carbon Black Catalyzed Transformation of Aqueous Ozone into OH-Radicals
Urs Jans,Jürg Hoigné +1 more
TL;DR: In an ozone-containing water a suspension of a few milligrams per liter of activated carbon (AQ or carbon black) initiates a radical-type chain reaction that then proceeds in the aqueous phase and accelerates the transformation of O3 into secondary radicals, such as hydroxyl radicals (°OH) as mentioned in this paper.