Removal of heavy metal ions from aqueous solutions using clinoptilolite

Golomeova, Mirjana and Zendelska, Afrodita and Krstev, Boris and Golomeov, Blagoj and Krstev, Aleksandar (2015) Removal of heavy metal ions from aqueous solutions using clinoptilolite. In: XVI Balkan Mineral Processing Congress, 17-19 June 2015, Belgrade, Serbia.

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Heavy metals are a common pollutant found in various industrial effluents. They are often
encountered in mining operations and acid mine drainage. The heavy metals are highly toxic and are
non-biodegradable, therefore they must be removed from the polluted streams in order to meet
increasingly stringent environmental quality standards.
Removal of heavy metals can be accomplished by a variety of techniques. Conventional methods
typically involve the use of processes such as coagulation, precipitation, ion-exchange,
electrochemical methods, membrane processes, extraction, biosorption, adsorption, etc. Among these
methods, adsorption is currently considered to be very suitable for removal of heavy metals because
of its simplicity and cost effectiveness. Some widely used adsorbents for adsorption of heavy metals
include activated carbon, clay minerals, biomaterials, industrial solid wastes and zeolites.
The removal of copper, zinc, manganese and lead ions from synthetic aqueous solutions was
performed using clinoptilolite. In order to determine the effectivity of clinoptilolite a series of
experiments were performed under batch conditions from single ion solutions. Experiments were
carried out at different initial ions concentration, different initial pH values and different adsorbent
The adsorption of copper, zinc, manganese and lead ions from single ion solution onto natural zeolite
occurs efficiently. It is the most effective at lower ions concentration, higher mass of zeolite and higher
pH value of the solution.

Item Type: Conference or Workshop Item (Paper)
Subjects: Engineering and Technology > Environmental engineering
Divisions: Faculty of Natural and Technical Sciences
Depositing User: Afrodita Zendelska
Date Deposited: 23 Jun 2015 08:37
Last Modified: 23 Jun 2015 08:37

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