A Study of the Reaction of Ferrate with Pentachlorophenol - Kinetics And Degradation Products

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F17%3A00000898" target="_blank" >RIV/46747885:24220/17:00000898 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24620/17:00000898

Výsledek na webu

<a href="http://wst.iwaponline.com/content/early/2016/10/26/wst.2016.496" target="_blank" >http://wst.iwaponline.com/content/early/2016/10/26/wst.2016.496</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2166/wst.2016.496" target="_blank" >10.2166/wst.2016.496</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Study of the Reaction of Ferrate with Pentachlorophenol - Kinetics And Degradation Products

Popis výsledku v původním jazyce

Pentachlorophenol (PCP) is a persistent pollutant which has been widely used as a pesticide and a wood preservative. As PCP is toxic and is present in significant quantities in the environment there is considerable interest in elimination of PCP from waters. One of the promising methods is the application of ferrate.Ferrate is an oxidant and coagulant. It can be applied as a multi-purpose chemical for water and wastewater treatment as it degrades a wide range of environmental pollutants. Moreover, ferrate is considered a green oxidant and disinfectant.This study focuses on the kinetics of PCP degradation by ferrate under different pH conditions. The formation of degradation products is also considered.The second-order rate constants of the PCP reaction with ferrate increased from 23M-1s-1 to 4948 M-1s-1 with a decrease in pH from 9 to 6. At neutral pH the degradation was fast indicating that ferrate could be used for rapid removal of PCP.The total degradation of PCP was confirmed by comparing the initial PCP molarity with the molarity of chloride ions released. We conclude no harmful products are formed during ferrate treatment as all PCP chlorine was released as chloride. Specifically, no polychlorinated dibenzo-p-dioxins and dibenzofurans were detected.

Název v anglickém jazyce

A Study of the Reaction of Ferrate with Pentachlorophenol - Kinetics And Degradation Products

Popis výsledku anglicky

Pentachlorophenol (PCP) is a persistent pollutant which has been widely used as a pesticide and a wood preservative. As PCP is toxic and is present in significant quantities in the environment there is considerable interest in elimination of PCP from waters. One of the promising methods is the application of ferrate.Ferrate is an oxidant and coagulant. It can be applied as a multi-purpose chemical for water and wastewater treatment as it degrades a wide range of environmental pollutants. Moreover, ferrate is considered a green oxidant and disinfectant.This study focuses on the kinetics of PCP degradation by ferrate under different pH conditions. The formation of degradation products is also considered.The second-order rate constants of the PCP reaction with ferrate increased from 23M-1s-1 to 4948 M-1s-1 with a decrease in pH from 9 to 6. At neutral pH the degradation was fast indicating that ferrate could be used for rapid removal of PCP.The total degradation of PCP was confirmed by comparing the initial PCP molarity with the molarity of chloride ions released. We conclude no harmful products are formed during ferrate treatment as all PCP chlorine was released as chloride. Specifically, no polychlorinated dibenzo-p-dioxins and dibenzofurans were detected.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10401 - Organic chemistry

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

2017

Kód důvěrnosti údajů

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

Název periodika

Water Science and Technology

ISSN

0273-1223

e-ISSN

—

Svazek periodika

75

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

189-195

Kód UT WoS článku

000392391100020

EID výsledku v databázi Scopus

2-s2.0-85017468736