Mohamed AlwaeliSilesian University of Technology · Department of Technologies and Installations for Waste Management
Mohamed Alwaeli
Assoc. Prof. Mohamed Alwaeli, Ph.D, D.Sc. Eng.,
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35
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Citations since 2017
Introduction
Mohamed Alwaeli currently works at the Department of Technologies and Installations for Waste Management, Silesian University of Technology. Mohamed does research in Waste Recycling, Circular Economy and Waste Management.
Mohamed Alwaeli have been ranked among the most influential 2% of scientists in the world. https://elsevier.digitalcommonsdata.com/datasets/btchxktzyw/3
or:
https://www.polsl.pl/en/ps_aktualnosci/researchers-from-the-sut-again-among-the-2-most-influential-scientists/
Publications
Publications (35)
Dear Professors, we are the topic editors of the recently launched research topic: LIFE CYCLE ASSESSMENT AND WASTE MANAGEMENT. We want this to be the most up-to-date and impactful collection of research on this topic. The deadline for submission is 8th September 2023, but Frontiers’ fast-track review process, led by my editorial team, means each ar...
Regions with warm climate are poor in organic matter or have a deficit of soil. The purpose of the
work was to select the optimal mix from biodegradable wastes such as cardboard (Cb), natural textiles (Tx)
newspaper (Np), colored newspaper (Cp), and office paper (Op) for creating artificial soil by combining these
materials with compost and sand...
Nuclear power can replace fossil fuels and will have a decisive impact on the change in the approach to conventional energy. However, nuclear (or radioactive) wastes are produced by the operation of the nuclear reactors should be safely and properly disposed of. This paper assesses the uranium resources and the global state of nuclear power plants...
The increasing energy and water demands by the Arab Gulf states highlight the importance of sustainable use of energy resources. Wastewater sludge management for energy recovery creates an opportunity for sector integration for both wastewater treatment plants and renewable energy production. The objective of this study was to theoretically estimat...
The utilization of metallurgical sludge waste as a 10-30% replacement of natural sand has been investigated in this paper for its effect on the initial setting time and hydration heat evolution of cement and the mechanical properties of mortars. The results revealed that the addition of metallurgical sludge waste increased the water demand by up to...
![Chemical composition of metallurgical sludge waste [%].](publication/340098881/figure/tbl1/AS:872238899286016@1584969367120/Chemical-composition-of-metallurgical-sludge-waste_Q320.jpg)
Sand has been considered to be something of an immeasurable quantity. There are many indications that this view is no longer valid and that the limiting of natural aggregates usage is doubly justified. Firstly, the extraction of natural aggregates is expensive and has a huge impact on the environment. The main issues in sand and gravel mining are t...
![Composition of concrete mixes [kg/m 3 ].](profile/Mohamed-Alwaeli/publication/335892166/figure/tbl2/AS:836808816488450@1576522177122/Composition-of-concrete-mixes-kg-m-3_Q320.jpg)
Wastes are indispensable part of human existence. In 2017 in Poland, as much as 90.5% (113.8 million Mg) of all wastes were those related to economic activity. Already for years, the largest group of industrial waste are those from the mining, energy and metallurgical industries. Numerous scientific studies have shown possibilities of using metallu...
This paper summarizes the results of investigations of hybrid concrete containing scale and granulated lead–zinc slag wastes as substitutes for sand. Specifically, scale and granulated lead–zinc slag wastes are completely substituted for natural sand in concrete. The aim of this study was to investigate the effects of these waste materials on gamma...
This research study was motivated by the ecological concerns over the disposal of scale and steel chips waste and scarcity of natural sources of raw sand in many countries. This paper reports the findings of an investigation undertaken on concretes made using scale and steel chips waste from the iron and steel industries as a substitute for sand. T...
In an attempt to reduce waste originating from end-of-life vehicles (ELVs) which is becoming a serious environmental problem, the European Union enforced in 2000 the End-of-Life Vehicles Directive 2000/53/EC. Each European member state has to comply with the achievement of the following recycling and recovery targets: 80% and 85% by 2006 and increa...
Flotation process is used in coking coal in order to enrich the tiniest fraction of coal. As a result of this operation, a significant amount of wastes is produced. If we change the word “waste” to ”secondary resource” in terms of flotation waste, we obtain a material which has a potential application in many fields. A special feature of this type...
Trends in waste generation show an increase in the volumes of waste produced in most countries and it is clear that the trend will continue. It is a challenge to reduce the increasing flow of waste due to limited resources, ever increasing population, and rapid urbanisation and industrialisation worldwide. Rational waste management is one of the mo...
Research has been conducted on composting of diatomaceous earth after beer filtration and selectively collected organic waste. The content of post-filtered diatomaceous earth (PFDE) in experimental composts was 10, 30 and 50 wt. %. During composting, the temperature of the compost heaps was measured as a parameter characterizing the intensity of bi...
An overview of municipal solid waste management (MSWM) in Poland has been presented. The processes of waste generation and composition have been described and a comprehensive review of MSWM in Poland has been provided, covering some of the important aspects of waste management, such as the current status of waste collection, transport and disposal...
The last decades marked a period of growth and prosperity in
construction industry which involves the use of natural resources. This
growth is jeopardized by the lack of natural resources that are
available. On the other hand there has been rapid increase in the
industrial waste production. Most of the waste do not find any effective
use and cause...
Currently, the management of solid waste represents a major economic and environmental issue throughout the world. Trends in waste generation show an increase in the volumes of waste produced in most countries and it is clear that the trend will continue. The treatment and disposal of solid waste involves a range of processes including landfill, in...
Modification of concrete properties by the addition of appropriate materials is a popular field of concrete research. This study is focusing on the use of selected waste of iron and steel industry (steel chips and scale) as a partial replacement for sand in the production of concrete. In this research study, concretes were made with steel chips sca...
The costs connected with utilizing secondary materials (waste) as substitute of the raw materials depend on many factors. In this paper, the emphasis is put on the functioning of the plant depending on: capital costs, ecological unit cost of waste recycling [zł/Mg], unit costs of processing 1 Mg of waste into secondary materials, marketing costs of...
Much research has been done throughout the world to determine the economic and ecological profitability of waste utilization as a substitution for raw materials. Unfortunately, Poland has no sufficient solutions in this field. The deficiency of solutions impedes the work of groups of specialists in various fields involved with the rational planning...
Currently, the management of solid waste represents a major economic and environmental issue throughout the world. Trends in waste generation show an increase in the volumes of waste produced in most countries and it is clear that the trend will continue. It is a challenge to reduce the increasing flow of waste. Many management systems of solid was...
Along with technical and legal means, economic instruments are crucial components in the field of utilizing waste as substitutes of primary materials. Economic calculus of the effectiveness of replacing primary materials with secondary materials consists of determining the difference between the total costs of the production in which waste are used...
Currently the amount of produced packaging waste, especially that of paper, cardboard, glass and plastics, is increasing year by year. Increasing packaging quantity has forced countries of the European Union to face this problem. The issue is reflected in EU legislation. The European Parliament and Council Directive 94/62/WE of 20 December 1994 fur...
Waste generation in Poland is increasing, just as it is in many other European countries. Currently in developing and developed countries, the interest in municipal and industrial waste as an important source of energy and material has increased. According to the statistics focused upon the whole Poland, 1.74 billion tons of waste are landfilled an...
Każdy produkt staje się odpadem w momencie kiedy traci swoje wartości ekonomiczne. Akumulowane odpady z upływem czasu są rozkładane w ekosystemie albo mogą być używane jako surowce wtórne. Obliczenie rzeczywistego poziomu kosztów oraz efektywności recyklingu jest jednym z istotniejszych i zarazem trudniejszych zagadnień recyklingu odpadów komunalny...
Ze względu na różnice w czynnikach kosztów, koszty recyklingu są trudne do oszacowania i porównania. Przykładowo, niektóre koszty recyklingu nie są oddzielone od kosztów gospodarki odpadami. W niektórych przypadkach dochód ze sprzedaży recyklowanych materiałów oraz koszty zbiórki i regeneracji łączono ze sobą, a w niektórych nie. Za pomocą modelu m...
Projects
Projects (4)
The utilization of different wastes and secondary raw materials as replacements of cement has been investigated based on Life Cycle Assessment.
This special issue summarises recycling, thermic, and energetic treatment processes of wastes with a comparison between the waste disposal technologies, stressing factors affecting their applicability and suitability for the circular economy. However, even the most advanced technologies are not able to capture all the recyclable waste in its enormous amount and mixing. Effective pre-treatment and sorting of waste allow this valuable resource to be withdrawn from landfills and sent to further recycling and energy recovery operations in line with market demand. Today, a wide variety of technologies are used to pre-treat and sort waste, from manual demolition (disassembly) and waste selection to automated processes including crushing, screening, gravity separation using liquid or air, magnetic separation, and highly advanced spectrophotometric sorting technologies using electromagnetic radiation in ultraviolet, visible light, near infrared and laser. Therefore, we constantly need new technologies for improvement and testing new solutions. The subject of this Special Issue is to be a place for the exchange of novelties and advanced solutions in the field of recycling.
The main topics in waste recycling technologies presents:
• Mechanical and chemical recycling
• Energy recovering
• Advance recycling technologies
• Review of innovative technologies
• Innovations and novelty solutions in recycling
• Sustainability in the recycling process
• Bio-plastic recycling technologies
• Recycling in the mining and resources sector
• Recycling multi-material products
• Life Cycle Assessment of the recycling and products
• Circular economy in the recycling technologies
• Policy and regulations in the recycling
• Recycling in the waste management system
Yours Sincerely,
the topic editors:
Mohamed Alwaeli, Magdalena Bogacka and Viktoria Mannheim
Homepage:
https://www.frontiersin.org/research-topics/29218/novel-advances-in-waste-recycling-towards-circular-economy#overview
In this study, we present an overview of HLW and SNF management and decommissioning, as well as nuclear waste composition and characterization. This project examines the uranium resources and the global state of nuclear power plants and determines the energy mixes in different countries using the most nuclear energy. Furthermore, this project analyses the nuclear waste management and disposal and the depletion of abiotic resources, and the primary energy sources of a basic production process using electricity mix and nuclear electricity for a basic production process.
