Kerbala University has discussed an M.SC. dissertation entitled ” Investigation of the bacterial content and some chemical and physical properties of reverse osmosis water (R.O) in the Holy Kerbala.” from the Biology department.

The faculty of the Science/ University of Kerbala has discussed the M.SC. dissertation entitled ” Investigation of the bacterial content and some chemical and physical properties of reverse osmosis water (R.O) in the Holy Kerbala.” by Saba Salah Abid Al-Hassan Ali Which took place in the Great Hall of the College of Science on Wednesday 20/10/2021AD.
The results have shown that the current study has recorded the results of physical and chemical tests, which included temperature, pH, electrical conductivity, dissolved solid salts, total hardness, calcium, magnesium, chlorides, sulfates, sodium, potassium and nitrates. The permissible limits, except for the pH, recorded low results throughout the study period. Regarding results of bacterial tests, they recorded the presence of high bacterial contamination for a number of liquefaction sources. The presence of Escherichia coli and an aeruginosa were recorded for a number of bottled water samples. It was found that the bacterial numbers have increased during growth periods and decreased in other periods during the storage process. The storage process also affected all the physical and chemical properties of the bottled water containers that were stored and then tested. The results showed significant differences between the studied laboratories. As well as between the months at the level of significance ≤ 0.05. They also showed that there are differences between the bacterial and physiochemical results after storage operations for duration 30, 60 and 90 days.