Maisa el gamal

Maisa el gamal
Zayed University · Life and Environmental Sciences

PhD
College of Natural and Health Sciences (CNHS)

About

67
Publications
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Publications

Publications (67)
Book
Full-text available
Bio-polymerized Sulfur for Sustainable Practice in Applied Sciences and Engineering examines new opportunities in Sustainable Chemistry by using renewable resources and sulfur as a building block for manufacturing sustainable functional materials that can be used in applied sciences and engineering practice. It also discusses bio-polymeric material...
Article
Full-text available
Hydrogen is increasingly recognized as a viable solution to meet the growing global energy demand, making large-scale hydrogen storage essential for successfully realizing a full-scale hydrogen economy. Geological formations, such as depleted oil and gas reservoirs, salt caverns, and aquifers, have been identified as potential storage options. Addi...
Chapter
The development of sustainable construction materials is crucial for addressing environmental concerns and advancing eco-conscious building practices. In this study, we investigate the potential of sulfur-containing concrete formulations, aiming to enhance durability, reduce environmental impact, and meet the growing demand for eco-friendly buildin...
Chapter
The pressing environmental challenge of carbon dioxide (CO2) emissions necessitates efficient CO2 sequestration methods, while managing concentrated brine from desalination plants remains critical. This study investigates the efficacy of modified Solvay processes for brine desalination management and CO2 capture, beginning with ammonia and subseque...
Article
Full-text available
Plastics are an essential commodity due to their superior engineering properties, durability and low cost for utilization in various commercial products. However, the degradation of plastics due to several environmental stresses has led to the formation of microplastics (MPs). MPs have risen to the top of environmental concerns due to their affinit...
Article
Full-text available
BOOKS REVIEW: Sustainable utilization of carbon dioxide in waste management. Detritus / Volume 26 - 2024 / pages I-IV by Marco Schiavon - Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Italy
Chapter
Being an educator means upgrading the teaching styles to accommodate vast changing environments of teaching. This study reflects on the implementation of innovative pedagogical approaches, namely, context-based learning and incidental learning. The research was conducted on 125 higher education students who were undergoing a science course. Two maj...
Chapter
One of the main requirements that buildings must comply with is the stipulation of a safe and comfortable indoor environment. The study presented in this chapter focuses on the assessment of two important and substantial axes defining comfort: thermal and visual comfort. The bioclimatic design method for buildings mandates that designers use the su...
Chapter
This study addresses the effect of storing carbon dioxide conditions using industrial hydrated lime on the produced calcium carbonate morphology and particle size. The investigated carbonation conditions were carbonation reaction temperature and initial pH. The structural and chemical characteristics of the produced calcium carbonate sample were in...
Article
The transition to a clean-energy economy in an effort to mitigate climate change has brought a need for intense mining exploration of a critical class of minerals, previously mined and used at a fraction of what is required today and for the upcoming decades. For some common metals, such as copper, major deficits are forecasted for 2030, and for so...
Article
Full-text available
This study examines whether consumers’ behavior affects e-waste recycling in the UAE. This paper provides a theoretical model of e-waste recycling behavior based on the theory of planned behavior (TPB), and it goes on to analyze the impact of environmental consciousness, infrastructural support, and costs in e-waste recycling. To assess this study’...
Book
Full-text available
Description Sustainable Utilization of Carbon Dioxide in Waste Management addresses all aspects of sustainable use of carbon dioxide in waste management processes and provides best practices and process improvements for carbon sequestration in the management of a variety of waste types, including carbide lime waste, construction waste, and reject b...
Article
Climate change, global warming, and rise in water levels are environmental problems caused by the high emissions of greenhouse gases, and the most harmed one is carbon dioxide. Biochar is a material produced by thermochemical conversions with oxygen-depleted conditions of organic materials, and this process calls pyrolysis. Recently, it has been ev...
Article
Full-text available
This paper explores carbon capture and storage (CCS) through carbide lime waste (CLW), a by-product of acetylene production, under different conditions. This process is specifically designed to provide an onsite waste management solution for several industries that can easily be integrated into existing systems. In addition, the effect of the carbo...
Article
Full-text available
The COVID-19 pandemic affected the lives of people living across the world and the development of vaccines against SARS-CoV-2 is considered to be one of the most promising solutions to contain the COVID-19 pandemic. In several countries, we are witnessing hesitancy toward COVID-19 vaccines, which is a complex phenomenon influenced by a variety of f...
Article
Full-text available
The revitalisation of the global economy after the Covid-19 era presents environmental geotechnics with the opportunity to reinforce the need for a change in paradigm towards a green, circular economy and to promote aggressively the use and development of sustainable technologies and management practices. This paper aims to assist in this effort by...
Article
Full-text available
The United Arab Emirates (UAE) is one of the high-income countries in the Middle Eastern region and is vying for sustainable development in every sector. One of the UAE sustainable development goals is to ensure sustainable consumption and production patterns; hence, the emphasis is on circular economy. UAE is one of largest consumers of e-devices,...
Conference Paper
Full-text available
Concrete is the most widely used building and construction material. However, it is harmful to the environment due to the reliance on traditional cement as its main component. Many countries and research tend to rely on environmentally friendly components in the manufacturing of concrete instead of cement, or at least reduce the percentage of tradi...
Article
In this work, carbon dioxide uptake value by acetylene by-products was evaluated through two types of carbonation reactions. In the first reaction, solid acetylene by-products were reacted with a simulated effluent CO2 gas (10% CO2 and 90% air) and the maximum uptake value of carbon dioxide per unit mass of reacted solids was calculated. In the sec...
Article
Full-text available
This paper evaluates the potential use of date palm leaf biochar as a climate change solution through CO 2 capture and sequestration. The pyrolysis of date palm leaf was performed at different temperatures 300 • , 400 • , 500 • , and 600 • C. The physicochemical characteristics of the synthesized biochar were examined using Scanning Electron Micros...
Article
Full-text available
Mitigation of CO 2 is a very popular research currently, it is ultimately beneficial to find new ways that are sustainable, low cost and gas emission friendly. Therefore, with biochar's characteristics and properties it has great potential to be used as a CO 2 capture and storage media. The objectives of reducing palm waste by using the low-cost, s...
Article
Full-text available
The production of sulfur concrete (SC) from its ingredient materials requires controlled heating and mixing conditions at a temperature level of 130°-150 °C. Although this process considered to be common and applicable at the industrial level, it is difficult at the laboratory/research level. This paper presents the design and manufacturing details...
Article
Full-text available
A simple and direct method has been developed to grow zinc oxide (ZnO) nanorods (NRs) on a fluorine-doped tin oxide-coated glass (FTO) substrate. Firstly, spray pyrolysis deposition method is applied followed by dipping the substrate in a solution of ZnO growth reagents. The morphology, structure, and optical properties of the obtained thin film ar...
Chapter
Industrial pollution is the major source of global warming through emissions of greenhouse gases (GHG’s) like CO2, CH4, and NO2, causing noticeable increasing in the world’s temperature. Mineral carbonation is a method of carbon capture and storage (CCS) through which CO2 is sequestered with advantage of permanent sequestration and no need for post...
Article
The use of microorganisms to regenerate activated carbon (AC), bio-generation, can avert costly and logistically challenging ex-situ steam regeneration of carbon normally required to recover its adsorptive capacity. Bio-regeneration employs microbial metabolism in which the microbes use the available organic substrates (contaminants) to generate en...
Article
This study evaluates the physical and chemical effects of the sewerage environment on the corrosion of Portland cement concrete (PCC), sulfur-resistance cement concrete (SRC) and modified Sulfur concrete (MSC), through the carbonation depth measurements and the corrosion of reinforcing steel. The in-situ study showed high resistivity of MSC to the...
Conference Paper
The Arabian Gulf environment has an adverse impact on concrete structures because of the high ambient temperature, humidity, salt contaminated dust, sea water and underground salts. As an innovative solution, reinforced modified sulfur concrete (MSC) pipes are recognized as a durable and economical solution for deterioration of pipelines. This work...
Chapter
Chlorophenols (CPs) are hazardous pollutant that are commonly encountered as major constituents of several types of wastewater such as industrial, refinery and pharmaceutical wastewater. They are also exposed to the environment in the form of chloro-based pesticides. CPs are considered harmful to human health due to their potential carcinogenic and...
Article
Full-text available
The Arabian Gulf environment has an adverse impact on concrete structures because of the high ambient temperature, humidity, salt contaminated dust, sea water and underground salts. As an innovative solution, reinforced modified sulfur concrete (MSC) pipes are recognized as a durable and economical solution for deterioration of pipelines. This work...
Patent
Full-text available
Use of a non-ionic surfactant in the preparation of modified sulfur and/or modified sulfur cement that may or may not be modified sulfur concrete.
Patent
This invention provides a method to form nano-sized dispersed structure consisting of aqueous sodium silicate and polyvinyl pyrrolidone (PVP) solutions, and a binder consisting of a nano-sized dispersed structure and calcium chloride dihydrate solution. The invention provides also a method to immobilize sand dunes and wind-blown dust by using the b...
Article
Full-text available
This study verifies and validates the superiority of sulfur concrete (SC) over the ordinary Portland cement concrete (PCC) and sulfate-resistant concrete (SRC) in sewer harsh environments. A field study was performed in an actual sewage environment, specifically at the sewer’s gas and sludge environments. Performance of the PCC, SRC and two types o...
Article
The strength and stability of collapsible soils can present problems during construction. To overcome these problems, sulfur cement as a treatment method was developed and evaluated in view of its microstructure, mineralogical composition, physical, thermal, mechanical, hydraulic, and chemical properties. The treated soil was prepared from modified...
Article
The present study aims to offer a new methodology for consuming two industrial wastes; sulfur, from petroleum and natural gas industries, and cement kiln dust (CKD), from Portland cement industries, in construction industry. Sulfur solidified cement kiln dust material (SSCKDM) was manufactured by mixing molten sulfur, treated sulfur, CKD and sand a...
Chapter
Full-text available
In this study solid waste materials were utilized to produce a sustainable sulfur cement product. The product employed two complementary stabilizers: (a) bitumen as the chemical stabilizer, i.e. sulfur modifying chemical reagent, and (b) fly ash, as the viscosity increasing surface active stabilizer, acts as thickening agents and generally improve...
Article
The strength and stability of desert sand dunes present challenging problems to geotechnical engineers. To overcome these problems, sulfur concrete as a new material was developed and evaluated in view of its microstructure, physical, thermal, mechanical, hydraulic and chemical properties. Sulfur is used as the main binding material in sulfur concr...
Article
This study has focused on evaluating the durability of the newly manufactured sulfur polymer concrete (SPC) from recycled waste materials such as sulfur (by-product from oil industry), fly ash (recovered from the gases of burning coal during the production of electricity) and desert sand from abundant sand dunes quarries. The first step in such man...
Article
Full-text available
Polymer–clay composites carrying atrazine and polymeric atrazine salts as new controlled release systems have been prepared. Polymeric atrazine was prepared by polycondensation of atrazine with diethyl 2,3-O-dichloroacetyl-tartrate and diethyl-tartrate. The intercalation of the atrazine and polymeric atrazine salts onto MMT was carried out through...
Article
Full-text available
Existing uses for sulfur are relatively advanced and offer limited opportunities to consume significant new supplies. Currently, sulfur is in net surplus on a global basis, and with environmental regulations, greater sulfur recovery from petroleum and gas processing is mandated. The outlook is clear: there will be substantial and growing surpluses...
Article
A new approach is described for utilizing the swelling characteristics of montmorillonite (MMT) to compensate for polymerization-induced shrinkage in unsaturated polyester. The naturally sorbed sodium cation, at the lamellar interface of the mineral, was exchanged with the onium salt of 12-aminolauric acid to produce organophilic MMT, which was com...
Article
The role of asphaltene, carbonate, and clay contents on the stability of water–oil emulsions and water cut determination was evaluated via both IR analysis and physicochemical properties of the tested mixtures. To study the effect of asphaltene addition, 10 emulsions were prepared. The first five emulsions contained different water cuts from 10 to...
Article
In this study, system stability and water cut were evaluated via IR analysis and physicochemical properties of the tested mixture. Samples were prepared with different water cuts at a specified salinity and tested by IR. Different cations were also used in the water portion of the mixture to evaluate its effect of interaction and stability. In addi...
Article
A new polymeric system has been applied for structural modification of (noncompactable) sandy soils. The system is based on a water-borne styrene acrylic polymeric formulation (emulsion) containing varying amounts of solid polymer. The present work deals with system optimization and measurements designed to examine the effects of polymer content on...
Article
Full-text available
A series of polymer–clay composites carrying metribuzin as herbicide moieties were prepared. Linear copolymers containing metribuzin via an imide linkage were prepared by the free-radical polymerization of metribuzin monomer (N,N-diacryloyl metribuzin) with different comonomers. The intercalation of the copolymers onto montmorillonite through a cat...

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