Organovermiculite as regenerable adsorbent for treatment of heavily polluted waste water from coke industry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F19%3A10236605" target="_blank" >RIV/61989100:27230/19:10236605 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/19:10236605 RIV/61989100:27730/19:10236605 RIV/61989100:27740/19:10236605

Výsledek na webu

<a href="https://www.ingentaconnect.com/content/asp/jnn/2019/00000019/00000005/art00015;jsessionid=1fn4moui442d8.x-ic-live-02" target="_blank" >https://www.ingentaconnect.com/content/asp/jnn/2019/00000019/00000005/art00015;jsessionid=1fn4moui442d8.x-ic-live-02</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1166/jnn.2019.15861" target="_blank" >10.1166/jnn.2019.15861</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Organovermiculite as regenerable adsorbent for treatment of heavily polluted waste water from coke industry

Popis výsledku v původním jazyce

Organically modified vermiculites can be used as nanostructured adsorbents of organic compounds from waters or gaseous phases similarly as organically modified smectites or bentonites. There is a large amount of research data focused on adsorption properties of organoclays, however only a little information is about their post-sorption treatment. This work is focused on study of two possible ways of subsequent processing of organovermiculite after its use as sorbent for heavily polluted waste water. At first, the vermiculite modified with hexadecylpyridinium ions was used in batch static sorption against phenol ammonium water from the coke industry to get highly contaminated sorption material, especially containing organic hydrocarbons and their derivatives. The sorbent is known to have excellent sorption properties; however ecotoxicological characteristics of original material showed that sorbent had hazardous properties even before its utilization. For that reason, it was necessary to design a post-sorption treatment. Two possible methods of treatment were investigated, specifically solvent treatment (with dichloromethane) and thermal treatment (thermodesorption) at temperatures of 300 and 1100 oC, respectively. The treated materials were studied using infrared spectroscopy, X-ray diffraction and carbon phase analyses. The solvent treatment confirmed that it is possible to reuse modified vermiculite as adsorbent several times, although adsorption capacity after each extraction decreases. The thermal treatment at 300oC was not sufficient to remove all organic compounds from the vermiculite structure; however at 1100oC the only presence of magnesium silicate, magnesium aluminate and ferric oxide confirmed the formation of an inert material convenient for an environmentally harmless disposal of used adsorbent.

Název v anglickém jazyce

Organovermiculite as regenerable adsorbent for treatment of heavily polluted waste water from coke industry

Popis výsledku anglicky

Organically modified vermiculites can be used as nanostructured adsorbents of organic compounds from waters or gaseous phases similarly as organically modified smectites or bentonites. There is a large amount of research data focused on adsorption properties of organoclays, however only a little information is about their post-sorption treatment. This work is focused on study of two possible ways of subsequent processing of organovermiculite after its use as sorbent for heavily polluted waste water. At first, the vermiculite modified with hexadecylpyridinium ions was used in batch static sorption against phenol ammonium water from the coke industry to get highly contaminated sorption material, especially containing organic hydrocarbons and their derivatives. The sorbent is known to have excellent sorption properties; however ecotoxicological characteristics of original material showed that sorbent had hazardous properties even before its utilization. For that reason, it was necessary to design a post-sorption treatment. Two possible methods of treatment were investigated, specifically solvent treatment (with dichloromethane) and thermal treatment (thermodesorption) at temperatures of 300 and 1100 oC, respectively. The treated materials were studied using infrared spectroscopy, X-ray diffraction and carbon phase analyses. The solvent treatment confirmed that it is possible to reuse modified vermiculite as adsorbent several times, although adsorption capacity after each extraction decreases. The thermal treatment at 300oC was not sufficient to remove all organic compounds from the vermiculite structure; however at 1100oC the only presence of magnesium silicate, magnesium aluminate and ferric oxide confirmed the formation of an inert material convenient for an environmentally harmless disposal of used adsorbent.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21000 - Nano-technology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Journal of nanoscience and nanotechnology

ISSN

1533-4880

e-ISSN

—

Svazek periodika

19

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

2567-2574

Kód UT WoS článku

000458402700015

EID výsledku v databázi Scopus

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