Retention of phosphates from aqueous solutions with in sol–gel–derived amorphous CaO–MgO–Al2O3–SiO2 system as a model of blast furnace slag.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F18%3A10237985" target="_blank" >RIV/61989100:27360/18:10237985 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11696-017-0289-2" target="_blank" >http://dx.doi.org/10.1007/s11696-017-0289-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11696-017-0289-2" target="_blank" >10.1007/s11696-017-0289-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Retention of phosphates from aqueous solutions with in sol–gel–derived amorphous CaO–MgO–Al2O3–SiO2 system as a model of blast furnace slag.

Popis výsledku v původním jazyce

The article proposes new possibilities for the estimation of the maximum phosphate retention capacities (PRC) in blast furnace slags using their modeling. The amorphous blast furnace slag model (BFS–SG) and slag samples along the joining of the CaO:SiO2 = 1 and (CaO ? MgO):SiO2 = 1 of the CaO–MgO–Al2O3–SiO2 phase diagram were prepared by the sol–gel method. The surface analysis of BFS–SG was performed and the results were compared with real BFS. Batch adsorption experiments were performed to evaluate the phosphate removal of slags. SEM analysis and Raman spectroscopy were used to identify phosphate adsorbed forms. Phosphate retention is realized by the surface reactions of hydration products resulting in a nanostructured Ca-hydroxyapatite. The acid– base properties of the model samples in the selected crosssections were characterized by the values of the optical basicity. An excellent linear relation between the phosphorus retention capacity (PRC) and the optical basicity of the model samples was found, which allows an estimation of slag retention capacities and the forms of adsorbed phosphorus.

Název v anglickém jazyce

Retention of phosphates from aqueous solutions with in sol–gel–derived amorphous CaO–MgO–Al2O3–SiO2 system as a model of blast furnace slag.

Popis výsledku anglicky

The article proposes new possibilities for the estimation of the maximum phosphate retention capacities (PRC) in blast furnace slags using their modeling. The amorphous blast furnace slag model (BFS–SG) and slag samples along the joining of the CaO:SiO2 = 1 and (CaO ? MgO):SiO2 = 1 of the CaO–MgO–Al2O3–SiO2 phase diagram were prepared by the sol–gel method. The surface analysis of BFS–SG was performed and the results were compared with real BFS. Batch adsorption experiments were performed to evaluate the phosphate removal of slags. SEM analysis and Raman spectroscopy were used to identify phosphate adsorbed forms. Phosphate retention is realized by the surface reactions of hydration products resulting in a nanostructured Ca-hydroxyapatite. The acid– base properties of the model samples in the selected crosssections were characterized by the values of the optical basicity. An excellent linear relation between the phosphorus retention capacity (PRC) and the optical basicity of the model samples was found, which allows an estimation of slag retention capacities and the forms of adsorbed phosphorus.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemical Papers

ISSN

0366-6352

e-ISSN

—

Svazek periodika

72

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

401-408

Kód UT WoS článku

000423584300013

EID výsledku v databázi Scopus

2-s2.0-85041362596