مسار بولونيا

وسام باسم محمد جودي

السنة عنوان البحث نشر البحث
2014 Microbial quality and some physicochemical properties evaluating of drinking water in Al-Haay City south of Iraq Wasit Journal for Science & Medicine
Abstract The microbial quality of drinking water which distributed from AL-Haay water treatment plant and number of residential areas fed by water treatment plant was studied each month over sex month during period extended from the October 2013 to April 2014 and by two samples per month. These station derived their water from AL- Gharraf River in the southeastern part of Iraq, where the feed areas of the city with drinking water. This study included detection of bacteria, evidence of water contamination (coliform, fecal coliform, E.coli, fecal streptococcus bacteria and total bacterial count), also some physical and chemical variables ware like (temperature, turbidity, free residual chlorine and pH) . Results of bacteriological tests showed increasing in TPC, TC, FC, E.coli and FS bacteria in December and January in all study locations as compared to those of the other months for both water plants raw and drinking water and the FS values was less than other bacterial types for water plant. The TPC results of drinking water exceed 10 cell/ml, the allowable limit for drinking water, for all samples of water plant. On the other hand the TC, FC and E.coli exceeded zero cell/100ml, the allowable limit for drinking water, in many drinking water samples for both water plants with increasing of temperature in summer months. Physiochemical tests showed that air temperature at sampling time was varied between16 and 31°C and between11 and 29°C, for water temperature at sampling time also. The results of pH means were within the allowable limit, ranging from 7.1 in October to 8 in November .The highest mean value of turbidity recorded for raw water was in October with 62 NTU and the lowest value was in April with 7 NTU, while the highest mean value recorded for Drinking water was 15 NTU again in November and the lowest value was 1 NTU in April. The highest mean value of residual chlorine was recorded in March with 3.5 mg/L, the lowest value was ND mg/L in some of the farthest points of the plants. The results revealed that water parameters exceed the Iraqi standards, and WHO standards for the drinking water.