Produção Nacional
Adsorption kinetics and diffusion of Saxitoxins on granular-activated carbon: influence of pore size distribution
2015; UWA Publishing; Volume: 64; Issue: 3 Linguagem: Inglês
10.2166/aqua.2015.140
ISSN1365-2087
AutoresNeuma Maria Silva Buarque, Hugo Leonardo de Brito Buarque, José Capelo Neto,
Tópico(s)Pharmaceutical and Antibiotic Environmental Impacts
ResumoResearch Article| January 31 2015 Adsorption kinetics and diffusion of Saxitoxins on granular-activated carbon: influence of pore size distribution Neuma Maria Silva Buarque; Neuma Maria Silva Buarque 1Water Company of Ceara (CAGECE) - Av. Dr. Lauro Vieira Chaves, 1030-Vila União, Fortaleza/CE, Brazil. CEP: 60.420–280 Search for other works by this author on: This Site PubMed Google Scholar Hugo Leonardo de Brito Buarque; Hugo Leonardo de Brito Buarque 2Federal Institute of Education, Science and Technology of Ceará – Av. Treze de Maio, 2081, Benfica – Fortaleza/CE, Brazil. CEP 60.040–531 Search for other works by this author on: This Site PubMed Google Scholar Jose Capelo-Neto Jose Capelo-Neto 3Federal University of Ceara/SA Water, 40 Cheltenham St., Highgate, Adelaide, SA 5063, Australia E-mail: zecapelo@hotmail.com; capelo@ufc.br Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2015) 64 (3): 344–353. https://doi.org/10.2166/aqua.2015.140 Article history Received: October 29 2014 Accepted: December 15 2014 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Neuma Maria Silva Buarque, Hugo Leonardo de Brito Buarque, Jose Capelo-Neto; Adsorption kinetics and diffusion of Saxitoxins on granular-activated carbon: influence of pore size distribution. Journal of Water Supply: Research and Technology-Aqua 1 May 2015; 64 (3): 344–353. doi: https://doi.org/10.2166/aqua.2015.140 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Saxitoxin (STX) is the most toxic non-protein substance known. STX-producing cyanobacteria have been identified in most continents and are being detected more widely because of global warming, threatening human drinking water supplies worldwide. Removal of these components can be accomplished by adsorption on granular-activated carbon (GAC) but little is yet known about the kinetics of the process. This research investigated adsorption kinetics and diffusion behaviour of a decarbomoyl saxitoxin (dc-STX) and a carbamate toxin (STX) on four coconut shell-based GAC samples with different pore size distribution. It was observed that equilibrium concentration was reached within 24 h and that a pseudo-second-order model best represented experimental data. Of the four GAC samples tested, the example with the largest volume of mesopores adsorbed more STX and with a faster upload rate, while dc-STX was adsorbed equally in all four GAC samples. adsorption kinetics and diffusion, granular-activated carbon, saxitoxins © IWA Publishing 2015 You do not currently have access to this content.
Referência(s)