Using of rehydrated kaolinites for decontamination of areas polluted by arsenic, antimony and selenium

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F14%3A43897481" target="_blank" >RIV/60461373:22310/14:43897481 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22810/14:43897481

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Using of rehydrated kaolinites for decontamination of areas polluted by arsenic, antimony and selenium

Popis výsledku v původním jazyce

Anionactive sorbents were prepared from rehydrated kaolinite using the modification of raw clay with 0.6 M FeCl2. New sorbents were used for the removal of arsenic, selenium and antimony, which are human carcinogens that, in small amounts, are widely distributed in water. The natural kaolinite was calcined to metakaolinite (dehydroxylation) at 650 °C and then rehydrated at different temperature. To improve sorption properties to anionic particles, prepared metakaolinite was treated by rehydration in autoclave with Fe2+ ions. The best adsorption properties were found at the kaolinite rehydrated for 7 days. Adsorption parameters for As/Se/Sb oxyanions were calculated according to the Langmuir model. The adsorption affinity of toxic oxyanions decreased inthe order of Sb(V) } As(V) }Se(IV) } As(III), at the theoretical adsorption capacities range of 0.08 - 0.16.

Název v anglickém jazyce

Using of rehydrated kaolinites for decontamination of areas polluted by arsenic, antimony and selenium

Popis výsledku anglicky

Anionactive sorbents were prepared from rehydrated kaolinite using the modification of raw clay with 0.6 M FeCl2. New sorbents were used for the removal of arsenic, selenium and antimony, which are human carcinogens that, in small amounts, are widely distributed in water. The natural kaolinite was calcined to metakaolinite (dehydroxylation) at 650 °C and then rehydrated at different temperature. To improve sorption properties to anionic particles, prepared metakaolinite was treated by rehydration in autoclave with Fe2+ ions. The best adsorption properties were found at the kaolinite rehydrated for 7 days. Adsorption parameters for As/Se/Sb oxyanions were calculated according to the Langmuir model. The adsorption affinity of toxic oxyanions decreased inthe order of Sb(V) } As(V) }Se(IV) } As(III), at the theoretical adsorption capacities range of 0.08 - 0.16.

Druh

C - Kapitola v odborné knize

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP210%2F10%2F0938" target="_blank" >GAP210/10/0938: Vliv zavlažování a srážek na mobilitu arsenu v půdním profilu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

One Century of the Discovery of Arsenicosis in Latin America

ISBN

978-1-138-00141-1

Počet stran výsledku

3

Strana od-do

687-689

Počet stran knihy

921

Název nakladatele

CRC Press/Balkema

Místo vydání

Leiden

Kód UT WoS kapitoly

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