research centers


Search results: Found 18

Listing 11 - 18 of 18 << page
of 2
>>
Sort by

Article
Phytoremediation of chromium contaminated soils by using Catharanthus roseus

Authors: Riyad Al-Anbari --- Abdul Hameed M.J. Al Obaidy --- Tiba J. Al-Amari
Journal: Mesopotamia Environmental Journal بيئة وادي الرافدين ISSN: 24102598 Year: 2016 Volume: 2 Issue: 4 Pages: 33-40
Publisher: Babylon University جامعة بابل

Loading...
Loading...
Abstract

Phytoremediation is a developing technique that used plant to remediate, degrade, remove or extract organic and inorganic pollutant from soil, water and air. In the present study Catharanthus roseus was used for chromium phytoremediation, this plant was seeded in polyethylene pots that contain 8kg of soil. The plant was irrigated with wastewater for four months (May, June, July and August) and the accumulation of heavy metal were analyzed after every month for leaf, stem and root by using Atomic Absorption Spectrophotometer (AAS). The result of translocation factor showed that the accumulation of chromium was high in root than stem. This plant had been Hyperaccumulation depending on the result of Bioconcentration factor (11.45) for August months. The result express that the order of chromium removal was August (93%), July (33%), June (12%) and May (7%). This plant has been effective for removing this metal from soil irrigated by wastewater.


Article
Spatial Distribution and Partition Coefficient of Nutrient in Water and Sediment of Shatt Canal, Iraq

Authors: Mukdad Al-Khateeb --- Eman Shakir --- Luay M. Abdul Kareem --- Abdul Hameed M.J. Al-Obaidy
Journal: Mesopotamia Environmental Journal بيئة وادي الرافدين ISSN: 24102598 Year: 2016 Volume: 3 Issue: 1 Pages: 25-36
Publisher: Babylon University جامعة بابل

Loading...
Loading...
Abstract

The proposed water and sediment quality of Shatt Al-Basrah was assessed by (1) using Geographic Information Systems (GIS) using Inverse Distance Weighting (IDW) method for calculating nutrient concentrations of water and sediment samples, (2) evaluating Partition Coefficient (Kd) and cluster analysis for water and sediment samples. The GIS facilitates the explanations of the spatial relationships among key environmental processes. It employs spatial distribution modeling to analyze the nutrient concentrations of Nitrite as N (NO2-N), Nitrate as N (NO3-N), Ammonia as N (NH3-N), Ammonium (NH4), and Sulfate (SO4) in the water and sediment. This paper shows that the results of Partition Coefficient (Kd) is always less than 3 for all sites illustrating that the pollutants are present in liquid phase preferentially which have high solubility and are less sediment-associated.


Article
Air Quality Assessment of Some Selected Hospitals within Baghdad City

Authors: Azhar M. Haleem --- Abdul Hameed M.J. Al-Obaidy --- Salah M. Haleem
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2019 Volume: 37 Issue: 1 Part (c) special Pages: 59-63
Publisher: University of Technology الجامعة التكنولوجية

Loading...
Loading...
Abstract

Abstract- Hospitals are institutions designed to provide medical assistance tosick people have harm to their bodies, making them more likely to die thanothers, so indoor air quality (IAQ) of the various facilities of the hospital mustbe taken into account by providing an efficient Heating, ventilating and airconditioning (HVAC) systems with periodic maintenance and renewal fornonworking parts, and should appropriate with the health status of admissions,workers and visitors, the present study has been carried out to evaluate indoorair quality (IAQ) for three selected hospitals within Baghdad city. The studyperiod included the summer and winter of (2017) and the pollutants consideredare Ozone (O3), Nitrogen dioxide (NO2), Fine particles (PM10), Carbonmonoxide (CO), Sulfur dioxide (SO2) and Total volatile organic compounds(TVOCs). In addition to examining the airborne microorganisms bydetermination, both total count and diversity. The main objective of this paperis to assess the (IAQ) inside the hospital environment.


Article
Air Pollution Effects in Some Plant Leaves Morphological and Anatomical Characteristics within Baghdad City. Iraq

Authors: Abdul-Hameed M.J. Al-Obaidy --- Israa M. Jasim --- Abdul-Rahman A. AlKubaisi
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2019 Volume: 37 Issue: 1 Part (c) special Pages: 84-89
Publisher: University of Technology الجامعة التكنولوجية

Loading...
Loading...
Abstract

Abstract- The present study examined the air pollutants effects in seven plantspecies leaves, Olea europea L., Zizphus spina-christi L. Desf., Conocarpuslancifolius Engl., Albizia lebbeck L. Benth., Eucalyptus camaldulensis Dehnh.,Clerodendron inermis L. Graeth and Dodonaea viscasa Jacq., distribute withinBaghdad city. The leaves sample were collected from May (2016) to April (2017)in five regions within Baghdad city, which are Karrada, Sadr City, Shoula andMansur, as well as Baghdad tourist island as a control region. The Sulfurdioxide (SO2), Nitrogen dioxide (NO2), Carbone monoxide (CO), Volatileorganic compounds (VOCs) and Suspended particulate matter (PM) weremeasured in all study regions. The present study results showed an increase inconcentration of all air pollutants in the four study regions compared toBaghdad tourist island, (SO2) average was (0.56) ppm, while (NO2) averagewas (0.80) ppm, (CO) average was (27.69) ppm, (VOCs) average was (5.99)ppm, while (PM) average was (480.80) μg /m3. The morphological andanatomical characteristics include length, width, area, number of stomata; thenumber of epidermis cells, and stomatal index were measured in plant leaves. E.camaldulensis leaves were recorded highest length rate (11.03) cm, whilehighest width rate (5.51) cm and leaf area rate (49.63) cm2 were recorded in A.lebbeck leaves. The highest number of stomata and epidermal cells were alsorecorded in A. lebbeck leaves (101.25 and 738.85) in respectively. But higheststomatal index value was recorded in D. viscasa leaves (14.21).


Article
Study the Pollutants Chlorophenols: Electronic and Physical Properties Relationship
دراسة الملوثات الكلوروفينولية: علاقة الخواص الالكترونية والفيزيائية

Authors: Abdul Hameed M.J. Al Obaidy --- Ahmed A. Al-Amiery --- Rana R. Al-Ani --- Yasameen K. Al-Majedy --- et al.
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2016 Volume: 34 Issue: 3 Part (B) Scientific Pages: 349-357
Publisher: University of Technology الجامعة التكنولوجية

Loading...
Loading...
Abstract

Geometrical optimization and electronic structure of chlorophenols were researched by DFT (B3LYP) utilizing a 3-21G basis set. We have likewise researched the aggregate electronic properties, Highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO) and energy gap. The calculated HOMO and LUMO energies demonstrate that charge transfer occurs within the molecule.

تم بحث ودراسة الشكل الهندسي الامثل، والتركيب الإلكتروني للمركبات الكلوروفينولية بوساطة نظرية دالة الكثافة DFT (B3LYP) باستخدام 3-21G كمجموعة الأساس. لقد بحثت كذلك الخصائص الكلية الإلكترونية والاوربتال الجزيئ المشغول الأعلى HOMO والاوربتال الجزيئ الفارغ الأدنىLUMO وفجوة الطاقة.


Article
Efficiency of E. microtheica and E. camaldulensis Tree to Remove Lead Element (Pb) from the Province of Baghdad Environment
كفاءة اشجار اليوكالبتوس (E. microtheica and E. camaldulensis) في اِزالة عنصر الرصاص (Pb) من بيئة محافظة بغداد

Authors: Abdul Hameed M.J. Al-Obaidy عبد الحمید محمد جواد العبیدي --- Maha A. Mahmod مھا علي محمود --- Athmar A.M. Al-Mashhady أثمار عبد المجید محمد
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2016 Volume: 34 Issue: 3 Part (B) Scientific Pages: 35-40
Publisher: University of Technology الجامعة التكنولوجية

Loading...
Loading...
Abstract

The lead concentration in soil and of plant (Eucalyptus) samples from different areas in Baghdad city (Zafarana, Sheikh Omar Street and Al Zawara Park). The results shows that the concentration of lead element is higher than the world average of uncontaminated soils. Depending on the results of the Geoaccumulation index it can be seen that the soil samples collected from Al Zawara Park were moderately polluted while the soil samples collected from the Zafarana district were moderate to severely contaminated and the soil samples collected from the Sheikh Omar street were heavily contaminated with lead element and this is clearly evident as a result of the impact of industrial activity in the region. Furthermore, the highest values of BCF were observed in Al Zawara Park and this evidence may be related to the plant age in this area.

تم تقدير تركيز الرصاص في عينات من التربة السطحية وعينات من القلف وأوراق أشجار اليوكالبتوس المزروعة في مناطق مختلفة في مدينة بغداد (الزعفرانية وشارع الشيخ عمر ومتنزه الزوراء). بينت النتائج ان معدل تركيز عنصر الرصاص في التربة اعلى من المعدل العالمي للترب غير الملوثة. وبالاعتماد على نتائج مؤشر التراكم الارضي يمكن ملاحظة ان عينات التربة لمنطقة الزوراء تعد معتدلة التلوث بعنصر الرصاص في حين ان عينات التربة لمنطقة الزعفرانية كانت معتدلة الى ملوثة بشدة. اما عينات التربة لمنطقة الشيخ عمر كانت ملوثة بشدة وهذا يتجلى بوضوح نتيجة تأثير النشاط الصناعي من منطقة الى اخرى. كما بينت النتائج ان اعلى معدل لمعامل التركيز الاحيائي قد سجل في متنزه الزوراء وهذا قد يعود الى عمر النباتات في هذه المنطقة.


Article
Detection of Nutrients and Major Ions at Al Muthanna Storage Site Soil
الكشف عن العناصر المغذيه والأيونات الرئيسية في موقع مخازن المثنى

Loading...
Loading...
Abstract

In the early 90s military operations and United Nations Special Commission “UNSCOM” teams have been destroyed the past Iraqi chemical program. Both operations led an extensive number of scattered remnants of contaminated areas. The quantities of hazardous materials, incomplete destructed materials, and toxic chemicals were sealed in two bunkers. Deficiency of appropriate destruction technology led to spreading the contamination around the storage site. This paper aims to introduce the environmental detection of the contamination in the storage site area using geospatial analysis technique. The environmental contamination level of nutrients and major ions such as sulphate (SO4), potassium (K), sodium (Na), magnesium (Mg), calcium (Ca), chlorine (Cl), phosphate (PO4) and nitrate (NO3) were detected and analyzed. The grid soil samples on the site and surrounding areas have been investigated, analyzed, and compared to the background points. The storage area grid was divided into 30 major sectors and all samples were evaluated from acquires 10 samples from each sector. The detection results have indicated that SO4 level was exceeded the permitted level by 25 times, K level also exceeded the permitted level but by 460, Na ions were 85 times greater the permitted level. Mg level was 180 times higher than that of permitted content. Activity level of Ca in the soil samples of the study area has also exhibited variability with nine times over the permitted level near the bunkers. However, very high contamination spot activity of Cl was found in destruction zone about which 44 times over the background level was found while PO4 level exceeded the permitted level by 35 times over the permitted level and there was no activity detected for the nitrate in the storage area site.

في أوائل التسعينيات من القرن الماضي، دمرت العمليات العسكرية وفرق لجنة الأمم المتحدة الخاصة "UNSCOM" البرنامج الكيميائي العراقي السابق. وادت كلتا العمليتين إلى اعداد كبيره من المخلفات المتناثرة في المناطق الملوثة. تم تجميع المواد الخطرة والمواد غير المكتملة التدميرية والمواد الكيميائية السامة في مخبأين. بسبب عدم وجود تكنولوجيا خاصه للتدمير مما ادى الى انتشار التلوث حول موقع المخازن. يهدف هذا البحث لكشف التلوث في الموقع باستخدام تقنية التحليل الجيومكاني. تم تقييم وتحليل الملوثات البيئية لمستوى تلوث المغذيات والأيونات الرئيسية (كبريتات SO4، البوتاسيوم K ، الصوديوم Na ، المغنيسيوم Mg ، الكالسيوم Ca ، الكلور Cl ، الفوسفات PO4 والنترات NO3)، مأخوذة من عينات التربة في الموقع، والتحقق من المناطق المحيطة وتحليلها مقارنة بنقاط مرجعيه. تنقسم عينات منطقة التخزين إلى 30 قطاعًا رئيسيًا، حيث يتم تقييم جميع العينات من 10 عينات من كل قطاع. تشير نتائج الكشف إلى أن مستوى SO4 يتجاوز المستوى المسموح به بمقدار (25) ضعفا ، مستوى K يتعدى المستوى المسموح به بمقدار (460) ضعف، أما Na فتتجاوز (85) مرة فوق المستوى المسموح به لمستوى Mg يزيد عن المسموح به (180) ضعف، ومستوى النشاط Ca في عينات التربة من منطقة الدراسة (9) مرات أكثر من المستوى المسموح به بالقرب من المخازن، تم العثور على بقعة ذات مستوى تلوث عالية جدا من Cl في منطقة التدمير حوالي (44) مرة مقارنه بالنقاط المرجعيه، مستوى PO4 يتجاوز بمقدار (35) مرة فوق المستوى المسموح به، ولم يتم اكتشاف اثر للنترات في موقع منطقة المخازن.


Article
Assessment of Oil Wastes Residual in Water, Sediment of Tigris River within Baghdad City
تقدير تراكيز المخلفات النفطية المتبقية في المياه والرواسب في نهر دجلة في مدينة بغداد

Loading...
Loading...
Abstract

This study conducted during 2013-2014 to investigated the effects of Oil Wastes and nutrients on the water /sediment quality of Tigris River in south of Baghdad, especially, the effluent that discharged from the Al-Doura oil refiner and the oil spills. Three station on the River were selected to be assessment point for the pollutions, the first one located at Al-Jaderria before Al-Doura oil refiner which represented the control area, the second station near Al-Doura oil refiner, while the third station located after Al-Doura oil refiner at Al-Zafrania , the result exhibit a series contamination of water/sediment samples by oil & grease and Total petroleum hydrocarbon, especially in station 2 where have the highest annual concentration levels of O/G and TPH, because its directly affected by the effluent discharge from the refiners. Moreover, the level of nutrient in sediment observed to be higher than that found in water sample.

اجريت الدراسة الحالية خلال 2013-2014 وتهدف الى الكشف عن تأثير المخلفات النفطية والمغذيات في نوعية المياه والرواسب لنهر دجلة جنوب مدينة بغداد, وبالتحديد المخلفات المطروحة من مصفى الدورة والبقع النفطية. تم اختيار ثلاث محطات على نهر دجلة لتكون محطات مراقبة، تقع المحطة الاولى في منطقة الجادرية وتمثل هذه المحطة منطقة السيطرة، والثانية بالقرب من مصفى الدروة، بينما تقع المحطة الثالثة بعد مصفى الدورة في منطقة الزعفرانية. وقد كشفت نتائج الدراسة الى وجود تلوث بالنفط والشحوم والهايدروكاربونات البترولية الكلية في كل من العينات المائية والرواسب وبالأخص في المحطة الثانية حيث سجلت اعلى تركيز سنوي، وتعود هذ الزيادة في تراكيز هذ الملوثات الى تأثر هذه المحطة بشكل مباشر بالمخلفات المطروحة من المصفى، بالاضافة الى ذلك فلقد وجد ان تراكيز المغذيات تكون اعلى في الرواسب منها في المياه.

Listing 11 - 18 of 18 << page
of 2
>>
Sort by
Narrow your search

Resource type

article (18)


Language

English (16)

Arabic (2)


Year
From To Submit

2019 (3)

2018 (1)

2016 (9)

2015 (2)

2014 (3)