Preparation of water using Electrochemical Processes

The effect of electrolysis and electro dialysis processes on iron and calcium ion concentration and the development of microorganisms in water were studied in this work. Experiments were conducted under laboratory conditions using model solutions containing iron and calcium ions. Bacteria Pseudomonas fluoresces were used as model organism for disinfection experiments. It was found that the solution electrolysis with successive filtration through quartz sand reduces total iron ion concentration 40- 50 times. If the current intensity applied to the electro dialysis cell is increased, the total amount of iron ion concentration reduced in the solution and the specific work of the process increased also. The calcium and total iron ion concentration in FeSO4 and CaCO3 containing solution decreased during electro dialysis. Rapid concentration decrease was observed at the beginning of the process. Electrolysis (to remove iron) of water solution containing at least 1 mmol/L of chloride ions also significantly improved the microbiological situation. No bacteria Pseudomonas fluoresces colony forming unit development in electrolyzed water within five days was found. Using water electro dialysis it is possible to efficiently desalinate solution. The development intensity of bacteria Pseudomonas fluoresces colony forming units in desalinated water is significantly reduced (as far as 1500 times)