Articolul precedent |
Articolul urmator |
![]() |
![]() ![]() |
Ultima descărcare din IBN: 2021-01-28 10:43 |
![]() NASTAS, Raisa, CEBAN (GÎNSARI), Irina, GOREACIOC (ARAPU), Tatiana, RUSU, Vasile, LUPASCU, Tudor. Nitrite ions adsorption kinetics on active carbons from local raw material. In: The Environment and the Industry: SIMI 2016 Book of abstracts, 13-14 octombrie 2016, București. București, România: National Research and Development Institute for Industrial Ecology ECOIND, 2016, Ediția a 19-a, Book of abstracts, p. 106. 10.21698/simi.2016 |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
The Environment and the Industry Ediția a 19-a, Book of abstracts, 2016 |
|
Conferința "The Environment and the Industry" București, Romania, 13-14 octombrie 2016 | |
|
|
Pag. 106-106 | |
![]() |
|
Rezumat | |
The purpose of this work was to evaluate the influence of mode of |
|
|
Dublin Core Export
<?xml version='1.0' encoding='utf-8'?> <oai_dc:dc xmlns:dc='http://purl.org/dc/elements/1.1/' xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'> <dc:creator>Nastas, R.I.</dc:creator> <dc:creator>Ceban (Gînsari), I.N.</dc:creator> <dc:creator>Goreacioc (Arapu), T.L.</dc:creator> <dc:creator>Rusu, V.I.</dc:creator> <dc:creator>Lupaşcu, T.G.</dc:creator> <dc:date>2016</dc:date> <dc:description xml:lang='en'><p>The purpose of this work was to evaluate the influence of mode of<br />activation (heat and acid) on the ability/capacity of active carbons to adsorb<br />nitrite ions from solutions. Two samples of active carbons obtained from nut<br />shells (i) by chemical activation with phosphoric acid (CAN-7) and by<br />physical-chemical activation with water vapours (CAN); and, by<br />comparison, commercial active carbon (AG-5) have been used for<br />adsorption of nitrite ions from water.<br />The influence of various experimental parameters (pH value, amount of<br />adsorbent, initial concentration, temperature, contacting time and effect of<br />electrolytes) was evaluated in batch experiments. Adsorption equilibrium<br />data were fitted to Langmuir and Freundlich isotherms and to different<br />kinetic models. Nitrite ions diffusivities were calculated from the slopes of<br />Fick’s unsteady state mass plots. The equilibrium data of series of the nut<br />shells-based activated carbons (CAN-7, CAN, CAN-Cl) were best<br />represented by the Langmuir isotherm, while of samples of commercial<br />active carbon (AG-5, AG-5ox)- by the Freundlich isotherm. Obtained results<br />reveal that adsorption capacity of activated carbons decreases in order:<br />CAN-7 ˃ CAN-Cl ˃ AG-5ox ˃ AG-5 ˃ CAN.</p></dc:description> <dc:identifier>10.21698/simi.2016</dc:identifier> <dc:source>The Environment and the Industry (Ediția a 19-a, Book of abstracts) 106-106</dc:source> <dc:title>Nitrite ions adsorption kinetics on active carbons from local raw material</dc:title> <dc:type>info:eu-repo/semantics/article</dc:type> </oai_dc:dc>