engleski

APPLICATION OF ELECTROCOAGULATION FOR WATER CONDITIONING

Access to clean drinking water is basic human right. According to the Council Directive 98/83/EC on the quality of water intended for human consumption, drinking water shall be wholesome and clean if it is free from any micro-organisms, parasites and substances which in numbers or concentrations constitute a potential danger to human health, whereby must meet minimum requirements regarding microbiological and chemical properties, radioactivity and physical properties. 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 process. The examples of previous studies of the EC process application is presented in this paper. The focus of the paper is 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. Also, an economic analysis is made, which, from an economic point of view, shows when it is justified to use the EC in the conditioning process.

electrocoagulation, water conditioning, operative parameters

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