المعهد العالى للهندسة والتكنولوجيا بالمنوفية

Assessment of self doped poly (5 nitro 2 orthanilic acid) as a scaling inhibitor to control the precipitation of ¬CaCO3 and ¬CaSO4 in solution Self-doped- and nitro-polyanilines have become a widely used strategy to optimize the electronic and vibratory spectra of polymeric building blocks in various applications. We report the synthesis of poly (5-nitro-2-orthanilic acid) by an aniline-initiated oxidative polymerization reaction. The polymer is characterized by spectroscopic techniques, elemental shapes, cyclic voltammetry, electrical conductivity, and microscopic and thermal measurements. The hydrophilic and hydrophobic nature of the supports provided the formation of amphiphilicity as judged by SEM. Thermogravimetric measurements reveal thermal stability up to 500 °C and glass temperature (Tg) observed at 240 °C. Electrical conductivity decreases as the temperature rises at the different frequencies used, reflecting the semiconducting nature in the extrinsic range, which is characterized by high carriers and low mobility. The presence of these electron residues causes a decrease in efficiency and increases the thermal conductivity. Dielectric measurements have shown that permittivity decreases gradually at lower levels, mainly due to the transport of charging carriers, resulting in higher performance. The testing of the copolymer as a new scale blocker has resulted in moderate to fairly high performance. This effect is attributed to the change in polymer geometry using intramolecular H-bonding group -SO3H and a chain polymer in an aqueous medium.

Poly Cyclic Aromatic Hydrocarbon Plucking out from Industrial wastewater using nano composite polymer;(kinetics and isotherm mediation studies), To restrict contamination to the environment, basic wastewater treatment plants eliminate organic and suspended solids. The evolution of treatment techniques to remove dissolved materials and harmful compounds has been forced by advances in needs and technology. Currently, advances in scientific understanding and moral awareness have resulted in a decrease in discharges through pollution control and recycling, with the lofty goal of zero pollution discharge. The major purpose of this research was to see how well Polyaniline adsorbents that have been functionalized with Bentonite performed. To synthesize polyaniline/bentonite nano composite (PAN/B), the process relies on induced bentonite during aniline polymerization. SEM, BET, FTIR, and EDAX investigations were employed to recognize the adsorbent, which was then exploited as a possible naphthalene adsorbent for effluent treatment. pH, adsorbent dose, contact time, and starting pollutant concentration were investigated as experimental factors impacting naphthalene sorption onto the PAN/B nanocomposite. The pseudo-second-order model best expressed the naphthalene adsorption when the kinetic data were assessed. The equilibrium data was fit to isotherm models, with the Langmuir model delivering the greatest fit to the naphthalene removal experimental data.

Effect of aramid and carbon fibers with nano carbon particles on the mechanical properties of EPDM rubber thermal insulators for solid rocket motors application The effect of varying compositions (5, 10, 15, 30 Phr) of aramid fiber in the pulp form Kevlar (KP), carbon mono fiber (CMF), and nano-carbon black (NCB) as filler for Trilene liquid polymers - Ethylene propylene diene monomer (EPDM) on mechanical properties were examined. All formulations contained 100 Phr EPDM, 60 Phr Ammonium polyphosphate (AP), and 5Phr Peroxide Crosslinking Agent (PCA). To improve the mechanical properties such as tensile strength, elongation, and hardness of EPDM Rubber thermal insulation used in the solid rocket motors, Twenty -Four samples with different formulations were tested at a tensile rate 50 mm/min and temperature 25 °C. The results indicated that composition containing KP has high storage modulus and tensile strength. EPDM rubber composite containing a ratio of 10 Ph kP+ 5 Phr CMF+ 5 Phr NCB showed better mechanical properties comparable with those of the KP/CMF, KP/NCB, or CMF/NCB filled EPDM. The tensile strength, hardness, and elongation have been slightly improved, fulfilling the thermal insulation requirement for solid rocket motors and the requirement of aging of thermal insulation for good pot life.

,Drag reducing polymer and impeller geometry effect on the rate of mass and heat transfer at the wall of a cylindrical stirred tank reactor, The effect of impeller geometry on the rate of liquid-solid mass transfer at the wall of the stirred tank reactor was studied by measuring the rate of the diffusion-controlled disintegration of copper in acidified dichromate. Factors examined were rotation speed of impeller and its geometry, drag reducing polymer concentration, solution physical properties and baffles effect. The mass transfer data in the blank solution were correlated by dimensionless correlations. Radial flow impellers produced higher rates of mass transfer than axial flow impellers under the same conditions. For a given set of conditions the presence of baffles was found to increase the rate of mass transfer more than unbaffled reactors. Drag reducing polymer was found to decrease the mass transfer rate by an amount ranging from 3.5 to 38.5% depending on rotation speed of impeller, polymer concentration and impeller geometry. Implication of the present results for stirred tank biochemical reactors which use drag reducing polymer to control solution viscosity and decrease the shear stress between the moving solution and the vessel wall as to protect immobilized enzyme or cells fixed to the wall against mechanical damage were discussed. The present results would help in evaluating the financial possibility of utilizing drag reducing polymers in working biochemical stirred tank reactors

Polymeric materials as pour point depressant for Egyptian waxy crude oil The relation between the temperature of waxy crude oils pipelining and pour point is a well-established phenomenon. Different techniques have been applied to reduce the problems due to crystallization of saturated hydrocarbons during production and transportation of waxy crude oils. Use of pour point depressant (PPD) is preferred economically and effect cost saving. In this work, Poly-methyl acrylic acid hydrazide, modified N-Salicylidene polymer and tin chloride complex was synthesis and characterized by SEM, FTIR, BET and TGA. PPD was evaluated as flow improver in different types of Egyptian waxy crude oils, Alamin (light crude oil) and Qarun (heavy crude oil).The results showed good performance in improving the pour point temperature depending on the composition and the location of waxy crude oil. The optimum amount of PPD for three types of depressants is 500 ppm for both types of Egyptian waxy crude oils.

Removal of Heavy Metal by Nickel Oxide Nano Powder In this study metal oxide nano powder namely NiO nanopowder was prepared .The produced metal oxide was characterized and used as potential adsorbent for the removal of Pb and Zn from aqueous solution. The rate of uptake of the Pb and Zn are rapid in the beginning and the time required for equilibrium adsorption is 120 min .The time of equilibrium as well as time required to achieve a definite fraction of equilibrium adsorption is independent of initial concentration. The results showed that the removal of Pb increased significantly as the pH increased from 2.0 to 6.0 and approach a plateau at pH range of 6.0–9.0., while the removal of Zn increased significantly as the pH increased from 2.0 to 9.0. The adsorption of pb onto NiO follows the Langmiur isotherm, while the adsorption of Zn onto NiO follows the Freundlish isotherm . The pseudo second order kinetic model provided good correlation for the adsorption of Pb onto NiO nanopowder while the pseudo first order kinetic model provided good correlation for the adsorption of Zn onto NiO nanopowder

Kinetic modeling and isotherm study for naphthalene adsorption on boehmite nanopowder Boehmite was synthesized and characterized in order to study the adsorption behavior and possibility to remove naphthalene as one of the polycyclic aromatic hydrocarbons (PAHs) from industrial waste water. The removal of naphthalene was investigated in terms of various parameters namely: pH, operating time, initial concentration of naphthalene and weight of adsorbent using batch technique. The data showed that the adsorption of naphthalene onto boehmite is not affected by changes in the pH. Adsorption data of naphthalene on the boehmite nanopowder were analyzed according to Freundlich, Langmuir adsorption and Redlich–Peterson models. The data were found to be best described by the Freundlich model. The kinetics of the adsorption was found to be fitted with a pseudo second order model. The negative values for free energy indicated that the spontaneous nature of the adsorption with a high performance of naphthalene for boehmite and also negative values of the enthalpies indicated that the process is exothermic. The study presented revealed that boehmite can be a promising adsorbent for the removal of PAHs such as naphthalene.

Fe(III) removal by activated carbon produced from Egyptian rice straw by chemical activation The present work explored the use of Egyptian rice straw, an agricultural waste that leads to global warming problem through brown cloud, as a potential feedstock for the preparation of activated carbon. Chemical activation of this precursor using two different methods was adopted. The produced activated carbon was fully characterized considering its adsorption properties, as well as its chemical structure and morphology. Application of using the produced activated carbon and raw rice straw for removal of the Fe(III) was evaluated in a batch operation system. The results indicated that the rate of uptake of the Fe(III) is rapid in the beginning and 80% adsorption is completed within 50 min, and the time required for equilibrium adsorption is 60 min. The removal efficiency of Fe(III) depends on the pH of the solution. The optimal Fe(III) removal efficiency occurs at pH 5. The adsorption isotherm analysis showed that the Freundlish isotherm provides a good model for the sorption system. The 1/n is lower than 1.0, indicating that Fe(III) is favorably adsorbed by activated carbon

المعهد العالى للهندسة والتكنولوجيا بالمنوفية

أ.م.د/ مروة عبدالفتاح عبدالرحمن عبدالهادى

البيانات الشخصية

دكتوراه فى الهندسة الكميائية بجامعة الاسكندرية

ماجستير فى الهندسة الكميائية بجامعة الاسكندرية

أستاذ مساعد فى الهندسة الكميائية بجامعه فاروس

استاذ مساعد بقسم هندسة البتروكيماويات كلية الهندسة , جامعة فاروس

استشارى إعداد دراسات تقييم الاثر البيئى جهاز شؤون البيئة , وزارة البيئة

معيد بقسم هندسة البتروكيماويات كلية الهندسة , جامعة فاروس

مدرس مساعد بقسم هندسة البتروكيماويات كلية الهندسة , جامعة فاروس

مدرس بقسم هندسة البتروكيماويات كلية الهندسة , جامعة فاروس

استاذ مساعد بقسم الهندسة الكميائية - رئيس القسم المعهد العالى للهندسة و التكنولوجيا -المنوفية , المعهد العالى للهندسة و التكنولوجيا -المنوفية

استشارى بنقابة المهندسين شعبة الهندسة الكيميائية , نقابة المهندسين