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Coagulation - Flotation Process for Removing Oil from wastewater using Sawdust+ Bentonite
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In many industries especially oil companies in Iraq consumed large quantities of water which will produce oil-contaminated water which can cause major pollution in agricultural lands and rivers. The aim of the present work is to enhance the efficiency of dispersed air flotation technique by using highly effective and cost-efficient coagulant to treating gas oil emulsion. The experimental work was carried out using bubble column made of Perspex glass (5cm I.D, 120cm height). A liquid was at depth of 60cm. Different dosage of sawdust +bentonite at ratio 2:1 (0.5+ 0.25; 1+ 0.5 and 2+1) gm and alum at concentration (10,20and30mg/l) at different pH ( 4 and 7) were used to determine optimum dosages of coagulant. Jar test experiment has showed that optimum dosage of (sawdust +bentonite) was (1+0.5gm) and alum concentration was 30 mg/l at pH=4.  

  The present study was conducted to evaluate the effect of various parameters pH (3, 4,7and 9); air flow rate (300, 500, 1000, and 1500 cc/min); initial oil concentration (300 up to 1000 ppm); concentration of Sodium dodecylsulphat surfactants ,SDS (25, 75and 150mg/l); and the effect of the addition coagulant (sawdust + bentonite at ratio 2:1) and alum (30mg/l) in the removal efficiency of oil from wastewater by coagulation –flotation process.

   The study has showed that the removal efficiency of COD, oil content and turbidity were related to the initial oil concentration; additive concentration of SDS and dosage of coagulants. It was found that the flotation rate increases when using coagulants, the fastest removal rate was obtained when pH 4 and also the higher removal efficiency achieved was for flotation (87%) and (95.7%) sawdust +bentonite; (97%) for alum in coagulation – flotation process.

 

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Publication Date
Wed Mar 10 2021
Journal Name
Baghdad Science Journal
sybthesis and characterization of oxazepine and oxazepane from reaction
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Schiff bases were prepared prepared Baaan NMR to some elements of which have contributed to the results of different methods in diagnosis prove structural formulas of compounds prepared

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Publication Date
Sun May 02 2021
Journal Name
Knowledge-based Engineering And Sciences
Lead sorption from aqueous solutions by kaolinite: laboratory experiments
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The lead has adverse effects in contamination the aquatic environment, for this reason, a laboratory simulation was conducted using kaolinite collected from the Ga’ara Formation at western Iraq to be considered as a natural sorbent material that can be addressed Pb2+ from the aqueous environments. The Energy-Dispersive X-ray Spectroscopy and atomic absorption spectroscopy clarifying very fine grains and pure phase with a very little quantity of quartz and has a number of active sites for adsorption. The sorption of kaolinite for the Pb2+ has been carefully tested by several designed laboratory experiments. Five lead solutions of different concentrations (25, 50, 75, 100 and 125 ppm) were tested under different values of pH (1.3-9)

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Publication Date
Mon Mar 08 2021
Journal Name
Baghdad Science Journal
Evaluation of Laser Doping of Si from MCLT Measurement
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The measurement of minority carrier lifetime (MCLT) ofp-n Si fabricated with aid of laser doping technique was reported. The measurement is achieved by using open circuit voltage decay (OCVD) technique. The experiment data confirms that the value of MCLT and proftle of Voc decay were very sensitive to the doping laser energy.

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Publication Date
Sat Mar 31 2018
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Synthesis of Nano Crystalline Gamma Alumina from Waste Cans
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In the present study waste aluminium cans were recycled and converted to produce alumina catalyst. These cans contain more than 98% aluminum oxide in their structure and were successfully synthesized to produce nano sized gamma alumina under mild conditions. A comprehensive study was carried out in order to examine the effect of several important parameters on maximum yield of alumina that can be produced. These parameters were reactants mole ratios (1.5, 1.5, 2, 3, 4 and 5), sodium hydroxide concentrations (10, 20, 30, 40, 50 and 55%) and weights of aluminum cans (2, 4, 6, 8 and 10 g). The compositions of alumina solution were determined by Atomic absorption spectroscopy (AAS); and maximum yield of alumina solution was 96.3% obtain

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Publication Date
Mon Jul 01 2019
Journal Name
Journal Of Physics: Conference Series
Production and antibacterial activity of biosurfactant from Saccharomyces cerevisiae
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Abstract<p>A total of four types of instant dry yeast <italic>Saccharomyces cerevisiae</italic> which are Gloripan, Swan, Super Man (China) and Saf (Turkey), were obtained from the local market in Baghdad, Iraq. All the types were identified according to their morphological characteristics and screened for their ability to produce biosurfactant by oil spread method. Biosurfactant was extracted and partially purified by precipitation with ammonium sulfate at saturation ratio75%. Antibacterial activity of crude and partially purified biosurfactant was tested against twenty isolates of <italic>Pseudomonas aeruginosa</italic> and the results showed that crude biosurfactant has no</p> ... Show More
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Publication Date
Sun Jan 01 2023
Journal Name
Journal Of Ecological Engineering
Cadmium Removal from Contaminated Soil by Electro-Kinetic Method
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Publication Date
Wed Mar 09 2022
Journal Name
International Journal Of Research In Social Sciences And Humanities
Escape From Reality in Tennessee Williams' The Glass Menagerie
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Tennessee Williams' The Glass Menagerie is peopled with powerless and defenseless characters. These characters are hypersensitive and in a constant search for protection. They are highly pressurized by life and its bitter reality. Adding to that they are haunted by their fear from the future. They are escapist who try their best to hide behind a protective shield. Their tireless search for security is never smothering. Their only possible defensive mechanism is to flee from their immediate hostile and aggressive surrounding. To achieve this aim, each character has improvised a method that suits him / her best. For example, one of the characters (Tom) sought refuge in alcohol and late night shows. While the other (Amanda) chose to re-live th

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Publication Date
Wed Apr 01 2020
Journal Name
Iraqi Geological Journal
LATE CAMPANIAN-MAASTRICHIAN GASTROPODA FROM BEKHME FORMATION, NORTHERN IRAQ
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Publication Date
Mon Feb 14 2022
Journal Name
Journal Of Educational And Psychological Researches
Methods of Achieving Mental Health from an Islamic Perspective
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The aim of the research is to identify the methods of achieving mental health from an Islamic perspective by using an analytical approach. The methods that were explained: strengthen the spiritual side to control the motives and emotion s overcome the whims of the soul, fear of God and treat mental illness from an Islamic point of view by recognizing self, assurance, foresight, learning and acquiring new trends. Conclusion: we can achieve mental health by optimism, not despair, the compatibility of the Muslim with himself and with others, Consistency, emotional balance, and patience in difficult situations. Islam has attributes that make an individual feels    psychological security. Thus, all these elements achiev

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Publication Date
Mon Feb 04 2019
Journal Name
Iraqi Journal Of Physics
Elastic electron scattering from 17Ne and 27P exotic nuclei
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The ground state proton, neutron and matter densities andcorresponding root mean square radii of unstable proton-rich 17Neand 27P exotic nuclei are studied via the framework of the twofrequencyshell model. The single particle harmonic oscillator wavefunctions are used in this model with two different oscillator sizeparameters core b and halo , b the former for the core (inner) orbitswhereas the latter for the halo (outer) orbits. Shell model calculationsfor core nucleons and for outer (halo) nucleons in exotic nuclei areperformed individually via the computer code OXBASH. Halostructure of 17Ne and 27P nuclei is confirmed. It is found that thestructure of 17Ne and 27P nuclei have 25 / 2 (1d ) and 1/ 2 2s -dominantconfigurations, resp

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