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دراسة بيئية لنوعين من القواقع النواعم MelauoidesTubercaloiaMelauoidespraemorsa

Author name: امل عمران شكر
General topic: Biology
Specific topic: Aquatic Environment
Degree: Master
University: Tikrit University - College Of Education For Pure Sciences - Department Of Biology
University location: Salahaddin

دراسة بيئية على النباتية على بعض مناطق الاهوار في جنوب العراق

Author name: عباس عبد الزهرة
General topic: Biology
Specific topic: Aquatic Environment
Degree: Master
University: Tikrit University - College Of Education For Pure Sciences - Department Of Biology
University location: Salahaddin

دراسة بيئة الطحالب القاعية لبعض مناطق الاهوار في جنوب العراق

Author name: ثائر ابراهيم
General topic: Biology
Specific topic: Aquatic Environment
Degree: Master
University: Tikrit University - College Of Education For Pure Sciences - Department Of Biology
University location: Salahaddin

تاثير بعض العوامل البيئية والمايكروبايولوجية في تنقية مياه الشرب لمحطة المجمع السكني في قضاء الدور - محافظة صلاح الدين == Effect of Some Ecological And Microbiological Factors On Drinking Water Purification Plants In Al - Mugama Al - Sakany In Al - Dour City - Salahaldin

Author name: فخر الدين نور الدين رشيد الخفاف
Supervisor name: حميد سلمان خميس المهداوي
General topic: Biology
Specific topic: Aquatic Environment
Degree: Master
University: Tikrit University - College Of Education For Girls - Department Of Biology
Language: Arabic
University location: Salahaddin
First pages:
Abstract: تضمنت الدراسة جمع عينات شهرية من مياه نهر دجلة ومحطة مياه الشرب العائدة للمجمع السكني في الدور اخذت العينات من خمس محطات مختارة ابتداء من شهر تشرين الثاني 2007 ولغاية شهر تشرين الاول 2008 لغرض دراسة بعض العوامل الكيمياوية والفيزياوية والبايولوجية السائدة | This study was included collecting of monthly water samples from Tigris river and water purification plant in AL - Mugama AL - Sakany in AL - Dour, These samples were collected from five chosen locations, started from November 2007 until October 2008, To Study The dominance of some chemical, physical and Biological factors Through the year its effects on water purification plants in AL - Mugama AL - Sakany in AL - Dour. These factors included air and water temperature, Turbidity, Electrical conductivity, pH, dissolved Oxygen, BOD, Total alkalinity, Total hardness, Calcium and Magnesium hardness , Chloride reactive nitrite, nitrate phosphate and salinity as well as some Biological factors such as Total number of bacteria and diatoms during the study period. The results of this study shown that there was a seasonal variation in some chemical and physical factors. where the value of air temperature ranged between (3.5 - 40) C and water temperature ranged between (3.4 - 32.5) C.Turbidity value ranged from (2.2 - 22.94) NTU while electrical conductivity ranged between (320 - 590) µs / cm. The results also showed that the water in Tigris river was alkaline, where the pH value ranged between (7.08 - 7.98). and aeration. The avarices value of dissolved oxygen ranged between (3.5 - 10.2) mg/L and The BOD value never increase to critical value, its ranged between (1.58 - 2.37) mg /L salinity ranged between (0.110 - 0.305) mg/L while chloride concentration ranged between (21.78 - 23.82) mg / L. It has been found that total hardness ranged between (170 - 370) mg/L while total alkalinity for the five station ranged between (124.1 - 137.8) mg No2/ L while Micronutrients ranged from (0.388 - 0.449) mg / L and the value of nitrate ranged between (ND - 0. 598) mg No2/ L and (0. 65 - 122) mg Po4 / L. In General where we compare the monthly average for physical and chemical variation for Tigris water with standard world limits applied for grouping of surface water, we can consider the quality of Tigris water is good and suitable for uses as a source for drinking water by using traditional purification of water.While the results of study of Biological factors showed that the total number of bacteria for Tigris water was modularity clear and unsafe for drinking with out treatment include sterilization. High number of bacteria was found in station (1) during February 2008 when it reached (284) cell / ml and the lowest average recorded in station (5) at December 2007 when its reached (50) cell/ml. This study also shown that high number of diatoms were recorded in station (1) when its reached (46860) cell/L at December 2007 and the lowest number recorded in station (5) when it reached (236) cell / L at November 2007. It has been identifies (11) genus and sp. of diatom in this stations and there were :