research centers


Search results: Found 14

Listing 1 - 10 of 14 << page
of 2
>>
Sort by

Article
Isolation, Purification and Identification of Seven species of Algae in three drinking water plants supply springs in Sulaimani province and growth control of isolated algae by using some plant extracts
عزل وتنقية وتشخيص سبعة انواع من الطحالب في ثلاث مشاريع لمياه الشرب ينبوعية المصدر في محافظة السليمانية والسيطرة على نمو الطحالب المعزولة منها باستخدام بعض المستخلصات النباتية

Loading...
Loading...
Abstract

In this study, three drinking water treatment plant supply springs were selected within different sites in Sulaimani province - Kurdistan region of Iraq. Samples were collected over period of eight months from May to the end of December 2015.Five stations were selected, Stations 1, 2 and 3 were located at Bestan Sowr drinking water project in Sharazur district, station 4 was located at Saray Subhan Agha drinking water project in Said sadiq district and station 5 was located at Khurmal drinking water project in Khurmal district within Halabja district. The study involved an Isolation, purification and identification seven species of algae by using Chu-10 media and Bold Basal Medium (BBM), and evaluation of the effectiveness of plant extracts (as antialgal) on the growth of isolated algae by Agar-Well Diffusion Method.Seven strains of algae from studying stations were isolated, purified and identified after collection which were: Ulothrix zonata, Desmodesmus lunatus, Desmodesmus itascaensis, Chlorella vulgaris, Calothrix fusca, Chroococcus turgidus and Navicula riediana. These isolated algae included 2 species of blue-green algae, 4 species of green algae, and 1 species of diatoms.In this study, the suggested plants extracts for use as inhibitors belong to different families of plant (5 plants) which were Hordeum vulgare (Barley straw), Peganum harmala, Artemisia annua, Thymus vulgaris and Nasturtium officinale (Watercress).On the assessment of the effectiveness of crude plant extracts (as antialgal) on the growth of selected algae by Agar-Well Diffusion Method, the results showed that the greater inhibition zone diameter was obtained 62 mm against Calothrix fusca by using crude extracted from Peganum harmala in concentration 80 mg/ml, and less inhibition zone diameter was 7 mm against Ulothrix zonata by using crud extracted from Artemisia annua in concentration 30 mg/ml. Nasturtium officinale (Watercress) did not show any effective against any type of isolated algae in all concentrations. Generally inhibition zones diameters differed according to the algal types and types and concentration of plant’s extracts.

في هذه الدراسة تم اختيار ثلاث مشاريع لمياه الشرب ينبوعية المصدر ضمن مواقع مختلفة من محافظة السليمانية - اقليم كردستان العراق. جمعت العينات لمدة ثمانية اشهر اعتبارا من شهر ايار 2015 وحتى نهاية شهر كانون الاول 2015.اختيرت خمس محطات للدراسة، المحطات الثلاثة الاولى تقع في مشروع بيستان سور لمياه الشرب في قضاء شارزور، وتقع المحطة الرابعة في مشروع سراي سبحان اغا لمياه الشرب في قضاء سيد صادق، وتقع المحطة الخامسة في مشروع خورمال لمياه الشرب في ناحية خورمال ضمن قضاء حلبجة.شملت الدراسة عزل وتنقية وتشخيص سبعة انواع من الطحالب باستخدام الوسطين Chu-10 وBBM، وكذلك تقييم كفاءة المستخلصات النباتية لتعمل كمثبطات طحلبية تم تجربتها في المختبر على سبعة انواع من من الطحالب المعزولة عن طريق استخدام Agar-Well Diffusion Method.تم عزل وتنقية وتشخيص سبعة انواع من الطحالب وهي:Ulothrix zonata, Desmodesmus lunatus, Desmodesmus itascaensis, Chlorella vulgaris, Calothrix fusca, Chroococcus turgidus and Navicula riediana.هذه الانواع السبعة المعزولة تضمنت نوعان من الطحالب الخضراء المزرقة واربعة انواع من الطحالب الخضراء و نوع واحد من الديتومات تم اقتراح 5 انواع من المستخلصات النباتية لاستخدامها كمثبطات نمو للطحالب وهذه النباتات تنتمي لعوائل نباتية مختلفة وهي نبات الشعير (Barley straw) H. vulgare (تبن الشعير)، وبذور نبات الحرمل Peganum harmala، ونبات الشيح (Artemisia annua)، ونبات الزعتر (Thymus vulgaris)، ونبات كرفس الماء Nasturtium officinale Watercress)). اما فيما يتعلق بتقييم فعالية المستخلصات النباتية الخام (كمثبطات) لنمو الطحالب تم استخدام طريقة Agar-Well Diffusion، اظهرت النتائج ان اكبر قطر للتثبيط حصل ضد النوع الطحلبي Calothrix fusca بطول قطر 62 ملم عند استخدام مستخلص نبات الحرمل عند التركيز 80 ملغم/ مل، واقل قطر تثبيط 7 ملم فقد سجل ضد النوع الطحلبي Ulothrix zonata عند استخدام مستخلص نبات الشيح عند التركيز 30 ملغم/ مل، اما نبات كرفس الماء فلم يظهر اي فعالية ضد اي نوع من الطحالب المعزولة وفي جميع التراكيز المستخدمة. بشكل عام قطر التثبيط يختلف تبعا للنوع الطحلبي ونوع وتركيز المستخلص المستخدم.


Article
Isolation and Identification of pathogenic bacteria from drinking water from different regions in Nasseriya city from October 2014 to September 2015

Author: Qasim Hassan Wida’a
Journal: JOURNAL OF THI-QAR SCIENCE مجلة علوم ذي قار ISSN: 19918690 Year: 2018 Volume: 6 Issue: 4 Pages: 71-76
Publisher: Thi-Qar University جامعة ذي قار

Loading...
Loading...
Abstract

In this study isolate 134 organism from tap water at the time reaserach through the seasens winter and Sumer , to determinate pathogenic bacteria of drinking water from different regions in Nasseriya city from October 2014 to September 2015 , many people do not have access to clean and safe drinking water and many die of waterborne bacterial infections, Salmonella typhi ,Salmonella typhimurium Streptococcus faecalis ,Esherichia coli ,Aeromonas hydrophilli , Campylobacter jejuni ,Enterococcus faecalis ,Staphylococcus aureus ,Citrobacter freundii,Citrobacter diversus , Vibrio cholerae Pseudomonas aeruginosa , Helicobacter pylori , Mycobacterium avium complex, (MAC is presented, focusing on the biology and ecology of the causal agents and on the diseases‘ characteristics and their life cycles in the environment, the different city ,that contain many microbial pathogenic in tap water,the main bacteria present in human feces for example Enterobacter cloacae ,Pseudomonas aerogenosa , important sources of bacterial fecal pollution of waters are also briefly indicatedin pollution and break point in pipe line ,the aim of this study was to isolate and identify bacteria from drinking water distributions system in Nasseriya city.


Article
Environmental assessment of heavy metals in surface and groundwater at Samarra City, Central Iraq

Authors: Mahmood Fadhil Abed --- Balsam Salim Al-Tawash --- Shatha Amer Ibrahim
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2018 Volume: 59 Issue: 3A Pages: 1277-1484
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

Urban Samarra City is characterized by high population density and wide variation in land use, has led to many environmental problems, for this purpose the environmental assessment became an urgent need for surface and ground water at study area. Three water samples from Tigris River and six groundwater samples were collected and analyzed for heavy metals as Fe, Mn, Zn, Cd, Cu, Co ,Pb, Ni, Cr, As, Mo, Hg, Al, Li, Be, Se, V, U, Sr. Most heavy metal concentrations have shown higher level than standards, such as Fe, Mn, Cd, Pb, Ni, Cr, As, Mo, Hg, Al ,Li ,Be, Se, V, that might be due to anthropogenic activities such as agricultural and the heavy use of fertilizers, besides other activities among them industrial . All water samples have higher concentration level of Uranium except (SW1, SW2, SW3, GW1) might be due to military activity. On the other hand all samples were polluted in Co except SW2, GW4, high value of Co may be caused by industrial processes and oil product spills. Physical and chemical properties values which have obtained in this study are pH, EC, TDS, TSS, DO, BOD,COD and turbidity. Water analyses reveal unacceptable values for physical and chemical parameters according to WHO standard and IQS2009 limits for drinking water, BOD, EC have shown high values in all surface and groundwater samples. Whereas, high values of TDS, COD and turbidity only in ground water samples. The water is not drinkable according to Water Quality Index (WQI) all values are above 100 and, in the sequence (GW1>GW5>GW4>GW3>GW6>GW2), the water quality index of surface water (SW3>SW2>SW1). Mixing of the shallow groundwater and Tigris River water show various patterns affected by other factors such as the aquifer recharge and evaporation, especially at the shallowest parts.


Article
Evaluation of Microbial Quality of The Drinking Water of Al-Bashaar Water Treatment Plant in Wasit Province Southern of Iraq

Authors: Wisam B. Al-Tmemy --- Ahmed J. Al-Azawi
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2018 Volume: 36 Issue: 2 Part (C) Pages: 128-136
Publisher: University of Technology الجامعة التكنولوجية

Loading...
Loading...
Abstract

The microbial quality of drinking water which distributed form Al-Bashaarwater treatment plant and number of residential areas fed by these water treatmentplant was studied each month over six months during a period extended from theOctober 2013 to April 2014, through the purification stages up to residential sites atdifferent areas situated with various distances from the supplying source, two sampleswere taken monthly. This station derived their water from AL-Gharraf River in thesoutheastern part of Iraq, where the feed areas of the city with drinking water. Thisstudy included detection of bacteria, evidence of contamination of water and somephysical and chemical variables. Results of Bacteriological tests showed increasing inTPC, TC, FC, E.coli and FS bacteria in December and January in all study locations ascompared to those of the other months for water plant raw and drinking water and theFS values was less than other bacterial types for water plant .Physiochemical testsshowed that air temperature at sampling time was varied between17 and 34°C andbetween11.5 and 29°C, for water temperature at sampling time also. The results of pHmeans were within the allowable limit. The highest mean value of turbidity recorded forraw water was in December and the lowest value was in April, while the highest meanvalue recorded for drinking water was again in December and the lowest value was inApril. The highest mean value of residual chlorine was recorded in March; the lowestvalue was 0 mg/L in some of the farthest points of the plant. From this study, it can beconcluded that the drinking water produced by Al-Bashaar plant is mostly undesirablefor drinking according to the Iraqi and WHO standards for the drinking water.


Article
Assessment of Drinking Water Quality in Mosul University by Using WQI Model
تقييم نوعية مياه الشرب في جامعة الموصل باستخدام دليل نوعية المياهWQI

Loading...
Loading...
Abstract

Physical, chemical and bacteriological properties of drinking water and its quality index in Mosul University were determined. WQI was calculated through twelve parameters of tested results, this index usage in representation of the overall quality of water WQI for any intended use, drinking water samples were collected from eighteen sites in Mosul University, and analyzed to determined water quality parameters during summer 2008.The study results indicated that al properties in safe international permissible limits for drinking water, except TPC which reached 800 cell/ml, the overall average of WQI reached 249; this high value belongs to high bacterial count which classified as very poor water.

تم دراسة الخصائص الفيزيائية والكيميائية والبكتريولوجية لمياه الشرب في جامعة الموصل، مع تقييم المياه باستخدام دليل نوعية المياه WQI باعتباره عشرة كأداة فعالة لتحديد نوعيته والذي يتم حسابه من عدة معايير؛ إذ اعتمد في دراستنا الحالية على اثنا عشر معيار، وقد تم جمع العينات المائية من ثمانية عشر موقعا من جامعة الموصل مع تقدير الخصائص النوعية لها خلال صيف عام 2008. أشارت نتائج الدراسة الى أن جميع الخصائص المدروسة كانت ضمن المواصفات القياسية العالمية المسموح بها للشرب عدا العدد الكلي للبكتريا التي بلغت 800 خلية/مل، اما المعدل الكلي لدليل النوعية بلغ 249 وهذه القيمة العالية كانت بسبب ارتفاع العدد الكلي للبكتريا وبذلك فان نوعية مياه الشرب المدروسة تقع ضمن صنف المياه الفقيرة جدا.


Article
REMOVAL OF FLUORIDE FROM SHATT AL-ARAB DRINKING WATER USING A NOVEL LOW COST MATERIAL

Author: Rusul N. Mohammed
Journal: KUFA JOURNAL OF ENGINEERING مجلة الكوفة الهندسية ISSN: 25230018 Year: 2018 Volume: 9 Issue: 3 Pages: 1-16
Publisher: University of Kufa جامعة الكوفة

Loading...
Loading...
Abstract

Drinking water contamination by fluoride component (F-) is considered as a main public problem in Basra city. The current study highlights on the removal of (F-) from drinking water using effective and low cost materials namely, banana shell and new technical that prepared from orange shell loaded with Zirconyl chloride solutions (Z-r4 (O-H)8 (H2-O)16] Cl8 (H2- O)12) to develop active adsorption sites for fluoride . High removal efficiency of 94.4 was achieved using fixed bed column loaded (Zc-dejr) under optimum operating conditions, 15.1 ppm of feed concentration, 4.5 pH of feed solution and 4 cm of bed depth. Result of breakthrough profile showed that Thomas was coincided well with the experimental data. Two model, Pseude first order and Pseudo second order where used for finding the mechanism of adsorption kinetics for fluoride (F-) removal by two-bio adsorbents. The result showed that the external adsorption besides to the intra-particle diffusion contributes to the rate influential step. Lagmaier model gives the better result model for the two adsorbents then Temkin isotherm model (TIM). The final concentration of fluoride in treated water with the banana shell adsorbent was 1 mg/l, and with the new solution (Z-r4 (O-H)8(H2-O)16] Cl8 (H2-O)12 ) was 0.5 mg /l which is acceptable with the standard World Health Organization (WHO).


Article
Elemental Analysis of River, Marshes and Ground Water in Thi-Qar Region in IRAQ

Author: Muhanad H. H. Alrakabi
Journal: Al-Mustansiriyah Journal of Science مجلة علوم المستنصرية ISSN: 1814635X Year: 2018 Volume: 29 Issue: 2 Pages: 182-187
Publisher: Al-Mustansyriah University الجامعة المستنصرية

Loading...
Loading...
Abstract

The elemental analysis of the samples collected from marshes water and river water in Thi-Qar region of Iraq are done using the X-ray fluorescence technique (XRF). The water samples are collected from Euphrates River, Al-Hammar marshes, ground water and drinking water. The elements observed in various samples are 20Ca, 26Fe, 29Cu, 30Zn, 33As, 35Br and 38Sr. The 20Ca concentration in Euphrates river water constitutes ͂ 2.3% of the left over residue, a value similar to that observed in water from the marshes. The 38Sr concentrations in the Euphrates river water is in the range 2519-5691μg/L. The 38Sr concentrations in Euphrates River are similar to that observed in the marshes water. In Al-Hammar marshes, the concentration of 34As is estimated to be in general below 5μg/L. The 35Br concentration in various samples collected from Al-Hammar marshes are in the average value equals to 1108μg/L. The 35Br concentration in various samples collected from Euphrates river are in the average value equals to 676μg/L. The water from Euphrates river is not safe for use for drinking water supply due to high bromine content and the water from the drinking water schemes from the river needs to be monitored for the presence of bromate ions.

تم اجراء تحليل لعناصر العينات التي تم جمعها من مياه الانهار والاهوار والمياه الجوفية في محافظة ذي قار في العراق باستخدام تقنية الأشعة السينية المتفلورة (XRF). حيث جمعت تلك العينات من نهر الفرات وهور الحمار والمياه الجوفية ومياه الشرب. العناصر التي تم ملاحظتها في العينات المختلفة هي الكالسيوم Ca))، الحديدFe) )، النحاسCu) )، الزنك Zn) ) ، الزرنيخ As) )، البروم (Br) و السترونشيوم ( (Sr. حيث وجد بان تركيز عنصر الكالسيوم في مياه نهر الفرات يشكل حوالي ( ٪~ 2.3 ) من كمية الرواسب وهذه النسبة مقاربة جدا لنسبة تواجده في مياه الأهوار. اما تركيز عنصر السترونشيوم في مياه نهر الفرات فقد تراوح بين 2519-5691)) مايكرو غرام/ لتر, وهذه التراكيز مماثلة لتلك التي لوحظت في مياه الاهوار.اما في هور الحمار، فان تركيز عنصر الزرنيخ كان بشكل عام أقل من 5 ميكروغرام / لتر . واوضحت الدراسة ايضا ان متوسط تركيز البروم في العينات المختلفة من هور الحمار كان مساويا الى الى 1108 ميكروغرام / لتر .اما متوسط تركيز هذا العنصر في العينات التي تم جمعها من نهر الفرات فقد كان مساويا الى 676 ميكروغرام / لتر. ووفقا لتلك النتائج، فان المياه من نهر الفرات غير امنة في استخدامها كمصدر لمياه الشرب بسبب التركيز العالي للبرومين , وعليه فان المياه الماخوذه من محطات مياه الشرب والمعتمدة على مياه النهر يتوجب مراقبتها لاحتوائهاعلى أيونات البرومات.


Article
Assessment of Bottled Drinking Water Quality in Baghdad Local Market by Some Chemical and Biological Parameters

Authors: Sabah O. Hamad --- Noor Y. Salih --- Ahmed Kh. Kadhim
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2018 Volume: 00 Issue: 1 Pages: 72-77
Publisher: Al-Nahrain University جامعة النهرين

Loading...
Loading...
Abstract

The aim of this work is to study different parameters of bottled drinking water that affect the health of people of Baghdad city. To perform this target, seventeen bottled samples were collected from local markets which were different bottles size and trade markets. The samples were analyzed physical, chemical and biological factors that influence water quality of the bottled water. The physical and chemical tests of bottled water showed that the mean value of pH ranged from 6.96-8.5, Total Dissolved Solids (TDS) 8-166 ppm, Total Hardness (TH) 22-178 ppm, Calcium (Ca++) 0.0-35 ppm, Magnesium (Mg++) 0.0-30 ppm, Chloride (Cl) 0.0-27 ppm, sodium (Na+) 0.0-25 ppm, potassium (K+) 0.0-4.5 ppm, Electrical Conductivity (Ec) 16-332 µs/cm. All samples were within the permissible limits for Iraqi criteria and standards for bottled water. The biological parameters include: total plate count, total coliform, fecal coliform, E.coli and yeast& fungi. The failure percentages of samples were 23.5, 11.7, 11.7, 11.7 and 11.7% respectively.


Article
Risk assessment of heavy metals in tap drinking water in different age group; in Baghdad city, Iraq

Author: Alaa Hamed Emran Al-Husseini
Journal: Mesopotamia Environmental Journal بيئة وادي الرافدين ISSN: 24102598 Year: 2018 Volume: 4 Issue: 2 Pages: 89-102
Publisher: Babylon University جامعة بابل

Loading...
Loading...
Abstract

The heavy metals such as lead Pb, copper Cu and iron Fe that found in drinking water resources causes toxicity and biological effects which is hazardous to human health. Kidney damage, headache and brain are the chronic effects on human resulting from long term exposure. In this study, samples are taken from six stations distributed in three places in Baghdad city from tap drinking water for the months of March to December 2014. The first two stations located in Al-Kadmyai area, the 3rd and 4th located in Al- Doora while the last two stations located in Al-Amryai area. Carcinogenic and non- carcinogenic risk assessment of lead, copper, and iron are implemented in order to show the probable cancer risk for inhabitants in Baghdad city. The determinations consist of the chronic daily intake for each pollutant, hazard quotient and total risk for adults' men, women and children, using Environmental Protection Agency EPA equations, ingestion, and dermal are the exposure pathways. The averages non- carcinogenic chronic daily intake through ingestion of water CDIing and through dermal adsorption CDIderm are as the following order: Pb>Cu>Fe for adult men, adult women and children respectively. The CDIing and CDIderm order for the three age groups is: children>adult women>adult men for all stations. The hazard index HI for ingestion and dermal contact of drinking water in six stations is less than 1, this means that population in Baghdad city which consumed tap water are in a safe place. The carcinogenic risk order through ingestion for lead is adult women>adult men>children in all stations. For all stations the values of carcinogenic risk CRing are between 10-6 and 10-4, it can be said that all stations are with the agreeable limit for carcinogenic risk for lead, so the population in three areas in Baghdad city is also in a safe area.


Article
Measurement of Radioactive Radon Gas Concentrations of Water in the schools for Abu - Gharaq

Authors: Khalid Hussain Hatif --- Mohsin Kadhim Muttaleb --- Alyaa Hofdi Abass
Journal: Journal of University of Babylon مجلة جامعة بابل ISSN: 19920652 23128135 Year: 2018 Volume: 26 Issue: 1 Pages: 174-180
Publisher: Babylon University جامعة بابل

Loading...
Loading...
Abstract

This research measuring the radioactive gas radon in samples of drinking water in the schools of Abu- Gharaq in Babylon Governorate Was chosen as the water from 14 schools by using the electronic radon detector RADH2O, where the highest value (0.688) Bq.L-1 and the lowest value (0.072) Bq.L-1 and effective dose for, human exposure to radon rate from (0.31536) mSv.y-1 to (3.01344 (mSv.y-1.This subject Has been chosen for the importance of water in human life and the lack of previous studies in the study area.

في هذا البحث تم قياس غاز الرادون المشع في عينات من مياه الشرب في مدارس ناحية ابو غرق في محافظة بابل حيث تم اختيار العينات من 14 مدرسة في هذه الناحية باستخدام تقنية جهاز RADH2O حيث كانت اعلى قيمة (0.688) Bq.L-1 وادنى قيمة (0.072) Bq.L-1 وقيمة الجرعة الفعالة لتعرض الانسان تراوحت من (0.031536) mSv.y-1 الى mSv.y-1 (3.01344). وقد تم اختيار هذا الموضوع للدراسة لأهمية المياه في حياة الانسان والحياة , وعدم وجود دراسات سابقة في منطقة الدراسة .

Listing 1 - 10 of 14 << page
of 2
>>
Sort by
Narrow your search

Resource type

article (14)


Language

English (10)

Arabic (4)


Year
From To Submit

2018 (14)