Using Of Method Ozonetion for Mineral Water treatment
Subject Areas : Water and Environment
1 - Facultyof mahabad unit, Islamic azad university,applied chemistry group
Keywords: Ozonetion, filtertion, Disinfection, mineral water, agreeable wate r,
Abstract :
Mineral water and drinking water are one of thevital and immediate needs for human beings.Depending age and weather, everybody needsabout one to two liters. The origin of %80 ofhuman diseases are unavailability of healthywater.%75 percent of people in developingcountries are deprived of facilities for water.Actually , healthy water scarce and expensive.Pollutions descend quality of water by changingit physically, chemically and biologically.Someof the pollutions are decadence and can bedecreased easily, like human, animal andagricultural drainages.Some of the pollutionsare undecadence , like polop and Mercury, andplastices that we should reduce them in water.In this reseach two samples of mineral waterfound in northern Mahabad, west Azarbaigan,with hardness of 42 , 36 mg/l(CaCo3) areinvestigated. Then, different amount of Ozonegas is injection in to mineral water and biologicaland chemical changes probed.The used Ozonator can produce 25 mg Ozoneper hour.We used iodometry method in order todetermine amount of ozone gas . In injection of1.25 mg/l we have done complete removal ofdiatomaceae in sample (1) and up to 99 percentin sample (2). Both had complete removal ofchlorophyceae in 1.1 mg/l complete remove ofBOD5 sample 1 in 1.1 mg/l Ozone and sample 2in 1 mg / lit ozone are produced.We had 65 percent reduction of COD for injectionof 1.2 my Ozone for sample (1) and 68 percent forsample (2).Complete disinfection is done in both by 0.5 mgper liter.In this method agreeable water is achievedbecause no chemical is used and we don’t need toprovide chemical substance . So, we can introduceOzonetion the best method for water treatment .
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چاپ دوم، انتشارات