Application of macroporous resin and cellulose based materials modified with iron oxides for arsenic removal
Primena makroporoznih smola i materijala na bazi celuloze modifikovanih oksidima gvožđa za uklanjanje arsena.
Докторанд
Taleb, KhaledМентор
Marinković, AleksandarЧланови комисије
Ristić, MirjanaPerić-Grujić, Aleksandra
Pavlović, Vladimir
Метаподаци
Приказ свих података о дисертацијиСажетак
Arsen spada u kategoriju karcinogena klase A, toksičan je i mutagen i prevencija
kontaminacije vode za piće izazvana arsenom je izazov koji je globalnog značaj. U cilju
smanjenja izloženosti arsenu, Svetska zdravstvena organizacija definisala je standard za vodu
kojim se smanjuje maksimalni nivo (MCL) arsena na 10 μg L-1. Usled strogih propisa sprovode
se obimna istraživanja na razvoju novih tehnologija primenjivih za efikasno uklanjanje arsena.
Među mogućim primenjivim tehnikama za uklanjanje arsena, adsorpcija je jednostavna, efikasna
i ekonomična tehnika koja nudi fleksibilnost pri dizajnu, a daje visok kvalitet tretirane vode. U
skladu sa navedenim istraživanja u okviru ove doktorske disertacije izvršene su sinteze novih
adsorbenata koji imaju optimalna adsorpciona svojstva za efikasno uklanjanje arsena iz vode...
Arsenic is classified as a Class A human carcinogen, toxic and mutagen and
prevention of drinking water contamination has been a challenge of global magnitude. To limit
the exposure to arsenic, the World Health Organization defined new water standards and
decreased the maximum contaminant level (MCL) of arsenic to10 μg L-1. Due to this strict
regulation extensive development of technologies applicable for effective arsenic removal was
necessary to be developed. Among the possible arsenic removal techniques, adsorption is
considered as simple, efficient and economic method which offers flexibility in design and
generating high-quality treated effluent. In that sense the research topic of the doctoral thesis was
focused on synthesis of new high performance adsorbents applicable for effective arsenic removal.
First part of the work was related to preparation of porous materials, i.e. amino modified
macroporous resin obtained in first step was followed by precipitation of iron(III)-oxyhydr...oxide
in goethite form, and by application of freeze/drying technique high performance ER/DETA/FO
adsorbent was obtained. Synthesis performed within second part was related to nanocellulose
isolation (NC) followed by modification with PEG-6-arm amino polyethylene glycol (PEG-NH2)
via maleic anhydride (MA) linker producing NC-PEG intermediary material...