master's thesis
Removing arsenic from water with activated carbon saturated with trivalent iron

Božena Marcikić (2016)
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Applied Chemistry and Ecology
Sub-department of Chemistry and Ecology
Metadata
TitleUklanjanje arsena iz vode aktivnim ugljenom zasićenim trovalentnim željezom
AuthorBožena Marcikić
Mentor(s)Mirna Habuda-Stanić (thesis advisor)
Abstract
Toksičnost arsena poznata je već desetljećima, a u novije vrijeme dokazana je i njegova kancerogenost. Proveden je velik broj istraživanja koja povezuju povišene koncentracije arsena u vodi za piće i pojave karcinoma kože, pluća i ostalih oblika karcinoma. Stoga se pojavljuje sve veći interes za istraživanjem metoda uklanjanja, odnosno smanjenja koncentracije arsena u vodi, što rezultira poboljšanjem postojećih i uvođenjem novih tehnologija u preradi vode za piće. Cilj ovog diplomskog rada bio je ispitati mogućnost adsorpcije arsena na aktivni ugljen koji je proizveden karbonizacijom ljuske lješnjaka te modificiran zasićenjem s željezovim(III) kloridom. Učinkovitost uklanjanja arsena iz vode promatrana je u ovisnosti o početnoj koncentraciji arsena, vremenu adsorpcije, pH i mase adsorbensa. Ovisnost navedenih parametara praćena je u korelaciji s promjenom temperature te su eksperimenti provedeni u termostatiranoj tresilici. Rezultati istraživanja pokazali su da je postotak uklonjenog arsena proporcionalan s početnim koncentracijama arsena te masom adsorbensa, a temperatura u tom slučaju nije utjecala na rezultate. Dulje vrijeme adsorpcije nije utjecalo na količinu uklonjenog arsena, dok su niže pH-vrijednosti pogodovale adsorpciji istoga.
Keywordsarsenic activated carbon adsorption trivalent iron water
Parallel title (English)Removing arsenic from water with activated carbon saturated with trivalent iron
Committee MembersDajana Gašo-Sokač
Mirna Habuda-Stanić
Lidija Jakobek
Maja Molnar
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Lower level organizational unitsDepartment of Applied Chemistry and Ecology
Sub-department of Chemistry and Ecology
PlaceOsijek
StateCroatia
Scientific field, discipline, subdisciplineBIOTECHNICAL SCIENCES
Food Technology
Engineering
Study programme typeuniversity
Study levelgraduate
Study programmeProcess Engineering
Academic title abbreviationmag. ing. proc.
Genremaster's thesis
Language Croatian
Defense date2016-01-20
Parallel abstract (English)
The toxicity of arsenic has been known for decades, and recently its carcinogenicity has also been proven. A large number of researches have been carried out linking increased concentrations of arsenic in drinking water with skin cancer, lung cancer and other types of cancer. Thus there is a growing interest in exploring methods of removing or reducing the concentration of arsenic in water, which is resulting in the improvement of existing and introduction of new technologies in water treatment. The aim of this master thesis was to examine the adsorption of arsenic on activated carbon which is produced by carbonization of hazelnuts shells and modified by saturation with iron(III) chloride. The efficiency of arsenic removal from water was monitored in relation to the initial arsenic concentration, adsorption time, pH and mass of the adsorbent. The dependence of mentioned parameters was monitored in correlation with temperature, so the experiments were performed in a thermostatted shaker. Research results showed that the percentage of the removed arsenic is proportional to the initial arsenic concentrations and the mass of adsorbent, but in this case temperature did not affect the results. Extended period of adorbtion also did not affect the amount of removed arsenic, while lower pH favored the arsenic adsorption.
Parallel keywords (Croatian)arsen aktivni ugljen adsorpcija trovalentno željezo voda
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:109:353634
CommitterIvana Šuvak