Brewers draff as a new low-cost sorbent for chromium (VI): Comparison with other biosorbents

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F13%3A59836" target="_blank" >RIV/60460709:41210/13:59836 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41330/13:59836

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Brewers draff as a new low-cost sorbent for chromium (VI): Comparison with other biosorbents

Popis výsledku v původním jazyce

In this study, used brewers draff was investigated as a novel sorbent for Cr(VI) and compared with other biosorbents (grape waste, peat moss, sawdust). FTIR-ATR, BET analysis and pHPZC determination were used to characterize the sorbents. Kinetic and equilibrium experiments were performed and two empirical models, Langmuir and Freundlich, were used to describe Cr adsorption. Additionally, packed bed column experiments were also performed. In order to identify possible reduction processes, ion exchange separation on the AG1-X8 resin was used to separate the anionic Cr(VI) and the reduced cationic Cr(III) from the aqueous phase after biosorption. Cr(VI) removal was pH-dependent and fitted well both the Langmuir and Freundlich isotherm models. The ion exchange separation showed that Cr(VI) reduction had occurred in the solution during biosorption. The efficiency of draff as a biosorbent was comparable (or even higher) to highly organic materials (e.g., composted peat), showing its potenti

Název v anglickém jazyce

Brewers draff as a new low-cost sorbent for chromium (VI): Comparison with other biosorbents

Popis výsledku anglicky

In this study, used brewers draff was investigated as a novel sorbent for Cr(VI) and compared with other biosorbents (grape waste, peat moss, sawdust). FTIR-ATR, BET analysis and pHPZC determination were used to characterize the sorbents. Kinetic and equilibrium experiments were performed and two empirical models, Langmuir and Freundlich, were used to describe Cr adsorption. Additionally, packed bed column experiments were also performed. In order to identify possible reduction processes, ion exchange separation on the AG1-X8 resin was used to separate the anionic Cr(VI) and the reduced cationic Cr(III) from the aqueous phase after biosorption. Cr(VI) removal was pH-dependent and fitted well both the Langmuir and Freundlich isotherm models. The ion exchange separation showed that Cr(VI) reduction had occurred in the solution during biosorption. The efficiency of draff as a biosorbent was comparable (or even higher) to highly organic materials (e.g., composted peat), showing its potenti

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DJ - Znečištění a kontrola vody

OECD FORD obor

—

Projekt

<a href="/cs/project/TA01021055" target="_blank" >TA01021055: Izotopy chrómu jako indikátor samočištění kontaminovaných vod: Řešení technologie za užití hmotnostní spektrometrie</a><br>

Návaznosti

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

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF COLLOID AND INTERFACE SCIENCE

ISSN

0021-9797

e-ISSN

—

Svazek periodika

2013

Číslo periodika v rámci svazku

396

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

227-233

Kód UT WoS článku

000316372400031

EID výsledku v databázi Scopus

—