Izvorni znanstveni članak
https://doi.org/10.37023/ee.6.2.3
Application of electrocoagulation for water conditioning
Hana Posavčić
orcid.org/0000-0001-6555-482X
; Faculty of Civil Engineering, University of Zagreb, Zagreb, Croatia
Ivan Halkijević
; Faculty of Civil Engineering, University of Zagreb, Zagreb, Croatia
Živko Vuković
; Faculty of Civil Engineering, University of Zagreb, Zagreb, Croatia
Sažetak
Water conditioning is a method of removing altering minerals, chemicals and contaminants from a water source and it is carried out on facilities equipped with the corresponding electro-mechanical equipment. Although efficient, conventional processes typically use several complex devices connected to a single functional unit, which are often expensive to maintain and occupy large areas. Therefore, the aim of this paper is to present the electrocoagulation (EC) method as an alternative to conventional water conditioning processes. The examples of previous studies of the EC process application is presented in this paper. The focus of the paper is to investigate the influence of the certain operational parameters such as pH, temperature, electrode material, etc., on the efficiency of pollutant removal such as Escherichia coli and elevated concentrations of iron, arsenic, manganese, ammonia and others. Further, an economic analysis is made, which, from an economic point of view, shows when it is feasible to use the EC in the conditioning process. Furthermore, a case study of electrocoagulation process for Total Nitrogen (TN) removal is presented. According to results, 69.7 % of TN was removed with aluminum electrodes after 240 minutes. For this case, total operating costs were 7.60 €/m3.
Ključne riječi
electrocoagulation; water conditioning; operative parameters; total nitrogen
Hrčak ID:
229233
URI
Datum izdavanja:
9.12.2019.
Posjeta: 1.884 *