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Removal of toxic elements from aqueous environments using nano zero-valent iron-and iron oxide-modified biochar:a review

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Biochar 2022年第1期4卷 779-799页

作者： Sabry M.Shaheen ahmed mosa Natasha Hamada Abdelrahman Nabeel Khan Niazi Vasileios Antoniadis Muhammad Shahid Hocheol Song Eilhann E.Kwon Jörg Rinklebe Laboratory of Soil-and Groundwater-Management Institute of Foundation EngineeringWater-and Waste-ManagementSchool of Architecture and Civil EngineeringUniversity of WuppertalPauluskirchstraße 742285 WuppertalGermany Department of Arid Land Agriculture Faculty of MeteorologyEnvironmentand Arid Land AgricultureKing Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Soil and Water Sciences Faculty of AgricultureUniversity of KafrelsheikhKafr El-Sheikh 33516Egypt Soils Department Faculty of AgricultureMansoura UniversityMansoura 35516Egypt Department of Environmental Sciences COMSATS University IslamabadVehari CampusVehari 61100Pakistan Soil Science Dept. Faculty of AgricultureCairo UniversityGiza 12613Egypt Institute of Soil and Environmental Sciences University of Agriculture FaisalabadFaisalabad 38040Pakistan Department of Agriculture Crop Production and Rural Environment University of ThessalyFytokou Street38446VolosGreece Department of Environment Energy and GeoinformaticsUniversity of SejongGuangjin-GuSeoul 05006Republic of Korea Department of Earth Resources and Environmental Engineering Hanyang UniversitySeoul 04763Republic of Korea

Biochar(BC)has gained attention for removal of toxic elements(TEs)from aqueous media;however,pristine biochar often exhibits low adsorption ***,various modification strategies in BC have been developed to improve its removal capability against *** zero-valent iron(nZVI)and iron oxides(FeOx)have been used as sorbents for TE ***,these materials are prone to agglomeration and also expensive,which make their usage limited for large-scale *** nZVI technical demerits could be resolved by the development of BC-based composite sorbents through the loading of nZVI or FeOx onto BC *** zero-valent iron modified BC(nZVIBC),FeOx-modified BC(FeOxBC)have attracted attention for their capability in removing pollutants from the aqueous ***,a potential use of nZVIBC and FeOxBC for TE removal from aqueous environments has not been well-realized or *** such,this article reviews:(i)the preparation and characterization of nZVIBC and FeOxBC;(ii)the capacity of nZVIBC and FeOxBC for TE retention in line with their physicochemical properties,and(iii)TE removal mechanisms by nZVIBC and *** nZVI and FeOx in BC increases its sporptive capability of TEs due to surface modifications in morphology,functional groups,and elemental *** combined effects of BC and nZVI,FeOx or Fe salts on the sorption of TEs are complex because they are very specific to *** review identified significant opportunities for research and technol-ogy advancement of nZVIBC and FeOxBC as novel and effective sorbents for the remediation of TEs contaminated water.

关键词： Feedstock Engineered biochar Toxic metal(loid)s Biosorption Wastewater remediation

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Dynamics of Plate Equations with Memory Driven by Multiplicative Noise on Bounded Domains

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Journal of Applied Mathematics and Physics 2024年第4期12卷 1492-1521页

作者： Mohamed Y. A. Bakhet Abdelmajid Ali Dafallah Jing Wang Qiaozhen Ma Fadlallah Mustafa mosa ahmed Eshag Mohamed Paride O. Lolika Makur Mukuac Chinor School of Mathematics University of Juba Juba South Sudan Department of Mathematics Faculty of Petroleum and Hydrology Engineering Alsalam University Almugled Sudan College of Mathematics and Statistics Northwest Normal University Lanzhou China Department of Mathematics and Physics Faculty of Education University of Kassala Kassala Sudan Department of Mathematics School of Education University of Juba Juba South Sudan

This article examines the dynamics for stochastic plate equations with linear memory in the case of bounded domain. We investigate the existence of solutions and bounded absorbing set by using the uniform pullback attractors on the tails estimates, and the asymptotic compactness of the random dynamical system is proved by decomposition method, and then we obtain the existence of a random attractor.

关键词： Plate Equations Random Attractors Memory Term Dynamical Systems

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Existence and Upper Semi-Continuity of Random Attractors for Nonclassical Diffusion Equation with Multiplicative Noise on Rⁿ

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Journal of Applied Mathematics and Physics 2022年第12期10卷 3898-3919页

作者： Fadlallah Mustafa mosa Abdelmajid Ali Dafallah Qiaozhen Ma Eshag Mohamed ahmed Mohamed Y. A. Bakhet Department of Mathematics and Physics Faculty of Education University of Kassala Kassala Sudan Department of Mathematics Faculty of Petroleum and Hydrology Engineering Alsalam University Al-Fulah Sudan College of Mathematics and Statistics Northwest Normal University Lanzhou China Faculty of Pure and Applied Sciences International University of Africa Khartoum Sudan School of Mathematics University of Juba Juba South Sudan

This paper is concerned with the existence and upper semi-continuity of random attractors for the nonclassical diffusion equation with arbitrary polynomial growth nonlinearity and multiplicative noise in H1(Rn). First, we study the existence and uniqueness of solutions by a noise arising in a continuous random dynamical system and the asymptotic compactness is established by using uniform tail estimate technique, and then the existence of random attractors for the nonclassical diffusion equation with arbitrary polynomial growth nonlinearity. As a motivation of our results, we prove an existence and upper semi-continuity of random attractors with respect to the nonlinearity that enters the system together with the noise.

关键词： Random Attractors Nonclassical Diffusion Equations Asymptotic Compactness Upper Semi-Continuity

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Predictive Value of Neutrophil-to-Lymphocyte Ratio in Outcomes of Patients with Acute Coronary Syndrome

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World Journal of Cardiovascular Diseases 2018年第5期8卷 265-275页

作者： Wassam Eldin Hadad El Shafey ahmed Mohamed Emara Walaa Farid mosa Khaled Hussein El-Sharnouby Department of Cardiology Menoufia University Hospitals Menoufia Egypt Department of Cardiology Shibin El Kom Teaching Hospital Menoufia Egypt

Objectives: Previous studies have demonstrated the role of inflammation in acute coronary syndrome (ACS). The neutrophil-to-lymphocyte ratio (NLR) was found to be a useful inflammatory marker for predicting adverse outcomes. We hypothesized that an elevated neutrophil-to-lymphocyte ratio would be associated with increased mortality in patients with acute coronary syndrome. Methods: The study consisted of 40 patients with acute coronary syndrome who were admitted to Cardiology Department—Menoufia University Hospitals. The primary endpoint was all-cause in-hospital as well as 30-day mortality, and the patients were divided into three tertiles according to their admission NLR results. Results: All-cause 30-day mortality in the three groups based on NLR was 0.0%, 7.7% and 28.6%, in the low-, middle- and high-NLR groups, respectively (P χ2 test). In a logistic regression analysis, including baseline demographic, clinical, and biochemical covariates, the neutrophil-to-lymphocyte ratio was an independent predictor of mortality (OR = 2.44, 95% CI = 1.185 - 5.007, P Conclusion: An elevated neutrophil-to-lymphocyte ratio (NLR), a simple, relatively inexpensive and universally available inflammatory marker, seems to be a predictor of 30-day mortality in patients with acute coronary syndrome.

关键词： Acute Coronary Syndrome Inflammation Ischemia Neutrophil-to-Lymphocyte Ratio Mortality

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Postoperative Mechanical Axis Alignment and Components Position after Conventional and Patient-Specific Total Knee Arthroplasty

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Open Journal of Orthopedics 2016年第8期6卷 253-258页

作者： Mohamed mosa Mohamed Maher A. El Assal ahmed M. Abdel Aal Yaser E. Khalifa Mahmoud A. Hafez Orthopaedic Department Alazhar University (Assiut Branch) Assiut Egypt Orthopaedic Department Assiut University Assiut Egypt Orthopaedic Department October 6 University Cairo Egypt

Introduction: Accurate postoperative alignment and implant positioning are determinant factors for successful total knee arthroplasty (TKA). Patient-specific template (PST) is a technique that uses computer technology for the planning, deigning and production of cutting guides. This study aims to compare PST to conventional technique in terms of mechanical axis alignment and component positioning. Patients and method: 109 TKA were performed for 78 patients in 2 groups. Group A included 69 conventional TKA in 55 patients and Group B included 40 patient-specific TKA in 23 patient. Postoperative long-film X-rays were done for all patients to observe the mechanical axis, anatomical axis, lateral distal femoral mechanical angle and medial proximal tibial angle. Results: No statistically significant difference was found between the two groups regarding alignment or component positioning. Conclusion: Both techniques have shown similar results in restoring the mechanical axis and alignment after TKA. However, PST had the advantages of reduced blood loss and shorter operative time.

关键词： Total Knee Arthroplasty Patient-Specific Templates Conventional TKA Mechanical Axis Limb Alignment Component Position

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Soil Salinization in Some Irrigated Areas of the Kingdom of Bahrain

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Journal of Agricultural Science and Technology(A) 2014年第2期4卷 112-122页

作者： Asma Ali Abahussain Abdelhadi Abdelwahab Mohamed ahmed Ali Salih Ahmad Al Safe Nader Abdul Hamed mosa Yahya Othman Desert and Arid Zones Science Program College of Graduate Studies Arabian Gulf University P.O. Box 26671 ManamaKingdom of Bahrain Ministry of Municipalities Affairs and Urban Planning Agriculture Affairs P.O. Box 53 Manama Kingdom of Bahrain

Monitoring and assessment of agricultural land degradation is of vital importance for better land and water management planning and reclamation. It requires setting baseline information and basic analysis at specific time and space. About 33 geo-referenced soil sampling spots were selected in two agricultural production locations in the Kingdom of Bahrain to assess the status and preliminary causes of land degradation. Soil samples were taken from 13 sites in Diraz location while 19 samples were taken from Budayyi location. The samples were taken to 90 cm depth at 30 cm intervals. Standard procedures were followed to determine soil physiochemical properties. In addition, field observations on farm condition, distance from the sea, method of irrigation and irrigation water source were taken. Some of the soil samples were deliberately taken from outside the irrigated basins among trees compared with samples taken from inside the actively growing area for comparison. The results indicated that the salinity level was significantly （P 〈 0.001） higher at the 0-30 cm soil depth compared with 30-60 cm or 60-90 cm depths in both locations. The distance from the sea did not show clear correlation with surface soil salinity in Budayyi area compared with Diraz. Both locations showed significantly higher salinity levels on samples taken outside the actively growing areas compared with those taken from within. The effect is more prominent at the 0-30 cm depth. The observed variability on salinity levels may be attributed to farm management practices and deteriorating quality of ground water. Thus, agricultural land degradation in Bahrain cannot be attributed to ground water deterioration alone. The use of tertiary treated sewage water （TSE） may ease the pressure on ground water, but the pH of the TSE should be carefully monitored and managed with proper studies on leaching requirements to avoid further salinity complications.

关键词： Soil degradation salinization Kingdom of Bahrain geo-referenced soil samples

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