U ovom je radu istraživan utjecaj količine letećeg pepela kao adsorbensa na ravnotežnu adsorpciju bakrovih iona iz vodene otopine bakrova(II) sulfata pentahidrata. Istraživan je utjecaj adsorpcije pri stalnoj početnoj koncentraciji otopine bakrovih iona (10,214 mmol dm^-3) u šaržnom reaktoru, pri stalnoj temperaturi od 300 K, veličini čestica letećeg pepela manjoj od 90 µm te uz stalno miješanje pri brzini od 200 okr min^-1. Uočava se porast učinkovitosti adsorpcije bakrovih iona na letećem pepelu s povećanjem dodane količine letećeg pepela kao adsorbensa što je posljedica većih interakcija između adsorbensa i otopine teškog metala uslijed povećanja količine dodanog adsorbensa. Isto tako, vodena otopina bakrova(II) sulfata pentahidrata pogoduje znatno boljoj adsorpciji bakrovih iona na površinu letećeg pepela od vodene otopine bakrova(II) nitrata trihidrata.

In this bachelor thesis, the influence of the amount of fly ash as an adsorbent in the equilibrium adsorption of copper ions from an aqueous solution of copper(II) sulfate pentahydrate was investigated. The effect of adsorption at constant initial concentration of the copper ions solution (10.214 mmol dm^-3) in a batch reactor, at a constant temperature of 300 K, with the size of fly ash particles less than 90 microns, and continuous stirring at a speed of 200 rpm was investigated. There is an increase in the efficiency of copper ions adsorption on the fly ash with an increase in the added amount of fly ash as an adsorbent as a result of greater interaction between the adsorbent and the solution of heavy metals due to the increase in the amount of added adsorbent. An aqueous solution of copper(II) sulfate pentahydrate exhibits a much better adsorption of copper ions to the surface of fly ash than an aqueous solution of copper(II) nitrate trihydrate.