Mohamed Samer

Mohamed Samer
Cairo University | CU · Department of Agricultural Engineering

Professor
http://scholar.cu.edu.eg/samer/biocv

About

149
Publications
370,025
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
3,011
Citations
Introduction
Full Professor (tenured) & Department Head. Recipient of The Privilege Medal of First Class (2017), issued by the President of Egypt. Laureate of the State Encouragement Award (2016), conferred by the Egyptian Government. Laureate of the Cairo University Excellence Award (2019). PhD from University of Hohenheim, Germany. Led 19 research projects (PI). Has an h-index of 24 in Scopus & h-index 29 in Google Scholar. Reviewed 132 articles for 25 journals. Reviewed 35 projects for 7 funding agencies.
Skills and Expertise
Additional affiliations
May 2019 - present
Cairo University
Position
  • Professor (Full)
April 2014 - May 2019
Cairo University
Position
  • Professor (Associate)
December 2011 - March 2014
Cairo University
Position
  • Professor (Assistant)
Education
February 2006 - November 2008
University of Hohenheim
Field of study
  • Institute of Agricultural Engineering
October 2002 - November 2004
Cairo University
Field of study
  • Department of Agricultural Engineering
October 1997 - June 2001
Cairo University
Field of study
  • Department of Agricultural Engineering

Publications

Publications (149)
Article
Full-text available
An emission inventory is a database on the amount of pollutants released into the atmosphere. The anthropogenic emissions of air pollutants and greenhouse gases are detrimental to the environment and the ecosystems. Therefore, reducing emissions is crucial. One key issue is to inventory these emissions, and consequently databases on anthropogenic e...
Article
Experiments were performed to study air exchange rates (AER) occurring in naturally ventilated dairy buildings during summer seasons 2006 to 2010. A tracer gas technique (TG) for AER measurements was developed. The AERs were determined by decay of radioactive tracer Krypton-85, and CO2-balance used as the reference method (RM). During each experime...
Article
Experiments were performed to study the ventilation rates in a naturally ventilated animal building through four summer seasons and three winter seasons. The ventilation rates were determined using moisture (H2O) balance, tracer gas technique (TGT) and CO2-balance. The statistical analyses were correlation analysis, regression model and t-test. Con...
Article
Full-text available
Anaerobic digestion constitutes a sustainable method for waste management and renewable energy generation, addressing significant environmental and societal challenges. The growing global waste crisis and the increasing momentum toward sustainable energy solutions emphasize the critical need to enhance anaerobic digestion technology for improved ef...
Article
Full-text available
Investigating the potential of magnesium oxide (MgO), graphitic carbon nitride (g‐C3N4), and their composite nanoparticles as nutrient sources for enhanced microalgae biodiesel production formed the core of this study. Supplementing the growth medium with g‐C3N4 and MgO/g‐C3N4 nanoparticles significantly increased microalgae (Chlorella sorokiniana)...
Chapter
Currently, fossil fuels dominate the global energy mix, causing greenhouse gas (GHG) emissions and climate change. In this context, the conversion of bioenergy materials to secondary biofuels can be profitable to substitute fossil fuels. This chapter discusses the most common biofuel production technologies and recent advances, highlighting the rol...
Article
Full-text available
BACKGROUND Microbial fuel cells (MFCs) offer a promising approach for treating wastewater and generating electrical energy simultaneously. However, their implementation in wastewater treatment plants is hindered by the limited electricity generation, often attributed to the electrolyte's high resistance. This study aimed to improve bioelectricity g...
Article
Full-text available
Microalgae have the potential to become the primary source of biodiesel, catering to a wide range of essential applications such as transportation. This would allow for a significant reduction in dependence on conventional petroleum diesel. This study investigates the effect of biostimulation techniques utilizing nanoparticles of Magnesium oxide Mg...
Article
Full-text available
Biohydrogen has significant feasibility since biological processes are much less energy intensive compared with electrolysis and thermo-chemical processes. Biological processes and bacterial fermentation are considered as the most environmentally friendly alternatives for satisfying future hydrogen demand. Biohydrogen production from biomass is con...
Article
Full-text available
Environmental issues are brought up concerning the production of Portland cement. As a result, biocement serves as a reliable substitute for Portland cement in green construction projects. This study created a brand-new technique to create high-quality biocement from agricultural wastes. The technique is based on nanomaterials that improve and acce...
Article
In order to conduct the kinetic modeling and compute the biohydrogen yield and production rate, numerous measures should be applied; this necessitates wide timespan and several attempts, with the likelihood of errors. This objective of this research is to develop a software to support users, engineers, and specialists in conducting these computatio...
Article
Direct application of anaerobic digestate to agricultural soil has major environmental threats. Therefore, this study evaluates and compares four scenarios of digestate utilization as the first life cycle assessment (LCA) study conducted on these four scenarios. The four scenarios included (i) biofertilizer pellets (BFPs), (ii) biocompost (BC), (ii...
Article
Unlike renewable energy sources, burning fossil fuels has severe environmental impacts, such as greenhouse gas (GHG) emissions and climate change. Therefore, this study aims to assess and compare the environmental impacts of three biogas utilization scenarios for energy production. The life cycle assessment (LCA) method was used to compare (i) biog...
Article
Bioethanol is a promising biofuel produced from agricultural wastes. The problem is that the bioconversion of cellulose to bioethanol takes a long time for excellent results. Predominantly, efficient enzymes and active microorganisms (yeast) can enhance the enzymatic saccharification and fermentation bioprocesses, respectively. The addition of nutr...
Article
Full-text available
The dry anaerobic co-digestion is progressively implemented for treating manure with different agricultural wastes. Nanoparticles (NPs) were hypothesized to accelerate the dry anaerobic co-digestion process, which increases the biogas and methane production. The objective of this study is to produce biogas using dry anaerobic co-digestion of manure...
Article
Bioenergy is a promising solution for greenhouse gas (GHG) emissions mitigation. However, the emissions resulting from the different production stages must be quantified and evaluated. The life cycle assessment (LCA) method was used to compare and quantify the environmental burdens of three rice straw (RS) utilization scenarios for producing biogas...
Article
Full-text available
Agricultural and agro-industrial wastes (e.g., potato peel waste) are causing severe environmental problems. The processes of pretreatment, saccharification, and fermentation are the major obstacles in bioethanol production from wastes and must be overcome by efficient novel techniques. The effect of exposing the fungi (yeast) Saccharomyces cerevis...
Article
Full-text available
Bioplastics are alternatives of conventional petroleum-based plastics. Bioplastics are polymers processed from renewable sources and are biodegradable. This study aims at conducting an environmental impact assessment of the bioprocessing of agricultural wastes into bioplastics compared to petro-plastics using an LCA approach. Bioplastics were produ...
Article
The biogas unit under investigation is a specially designed portable assembly biogas unit and is sought to be widespread and commonly used in Egypt by the Egyptian Environmental Affairs Agency (EEAA). This unit is able to anaerobically treat different types of organic wastes, which are: food waste, kitchen waste, and waste from landscape. The main...
Article
Full-text available
Microbial fuel cells (MFCs) are devices where bacteria generate electrical energy by oxidizing organic matter in wastewater. The implementation of MFCs on a commercial scale is limited due to electrode resistances, which are one of the key factors limiting electricity generation. This study presents a method to maximize the electrical power product...
Article
Full-text available
Microalga would be the paramount resource of biodiesel able of satisfying the world requirements for transportation fuels, which could fully replace the petrodiesel. Therefore, the research studies focus on developing novel biodiesel production methods. The present study investigates the effect of monochromatic light such as red light-emitting diod...
Article
Full-text available
Microalga would be the paramount resource of biodiesel able of satisfying the world requirements for transportation fuels, which could fully replace the petrodiesel. Therefore, the research studies focus on developing novel biodiesel production methods. The present study investigates the effect of monochromatic light such as red light-emitting diod...
Chapter
Full-text available
The existing agricultural and agro-industrial systems are not economically, environmentally, and socially sustainable as they implement the linear mode of production, which should be amended to the cyclic mode of production to promote sustainability. Therefore, this study aims at providing an approach to transform the present agricultural systems (...
Article
Full-text available
Light saturation of photo-fermentation is an important parameter that impacts fermentation efficiency, especially in mass culture. In other words, unsteady light irradiation negatively affects biohydrogen production. In this study, it is hypothesized that hydrogen-producing bacteria exposure to laser irradiation will improve the survival competence...
Article
Full-text available
Recently, laser radiation and nanomaterials have been utilized to improve biogas yield via anaerobic digestion of herd’s manure through biostimulating methanogenic bacteria. Yet, laser irradiation and nanomaterials as anaerobic bacteria stimulant could have environmental impacts that have not been assessed or known. The aim of the current research...
Article
Full-text available
At present, the major body of research is focused on weaning the world from fossil fuels. The problem is that the world is running out of fossil fuel. Therefore, an alternative source must be identified. The biofuels are promising alternatives. In the case of petrodiesel, a promising alternative is biodiesel production from algae. The ability of mi...
Technical Report
Full-text available
In rural areas of Egypt, communities face multiple challenges such as insufficient infrastructures for waste treatment, limited access to cheap energy, poor fertility soils and water retention capacity. A decentralized, low-tech biogas technology for combined waste treatment and energy production, anaerobic digestion can resolve many issues faced b...
Article
Full-text available
Recently, dry anaerobic co-digestion is one of the mechanisms which have been increasingly used to improve the reactor's performance for treating livestock manure with agricultural crop residues. Due to carbohydrate, protein and lipid existing in agricultural wastes, biogas yield decreased with higher reactor volume when using wet anaerobic digesti...
Article
At present, the major body of research is focused on weaning the world from fossil fuels. The problem is that the world is running out of fossil fuel. Therefore, an alternative source must be identified. The biofuels are promising alternatives. In the case of petrodiesel, a promising alternative is biodiesel production from algae. The ability of mi...
Article
Full-text available
Biogas production from animal manure can address many negative impacts of traditional energy generation and also improve living conditions in rural communities in Egypt, the case study herein, and further afield. Even though techno-economical aspects of the household biogas digester technology have been thoroughly studied, its environmental sustain...
Article
The objective of this study is to increase biohydrogen production from biomass using laser photoactivated nanomaterials. Light saturation of photo-fermentation is a vital factor that influences fermentation effectiveness and hydrogen yield. In this study, it is hypothesized that the bio-stimulation of hydrogen-producing purple non-sulfur (PNS) bact...
Article
Biogas generation from the latent energy in biomass is one of the most attractive renewable energy sources. This can be attributed to the environmental friendly nature of the process and its less energy requirements. This article reviews the anaerobic digestion of biomass (livestock manure and crop residues) for biogas and methane production as a s...
Article
In rural Egypt, communities face multiple challenges such as insufficient infrastructures for waste treatment, limited access to cheap energy and poor soils fertility. A decentralized, low-tech biogas technology for combined waste treatment and energy production, anaerobic digestion can achieve many sustainable development goals and resolve many is...
Patent
Full-text available
The present invention is a method to maximize biogas and methane production from the anaerobic digestion of livestock manure by using nanoparticles and laser radiation. The method is based on the use of nanoparticles and exposure to light by a laser source of 532 nm which enhances and accelerates the process of anaerobic digestion of organic matter...
Article
Recently, the use of nanomaterials as biostimulators for the methanogenic bacteria has been commonly deployed. This is to maximize the biogas production from livestock manure through the anaerobic digestion processes. Yet, the environmental impact of the nanomaterials as manure additives has not been evaluated. In this respect, different nanopartic...
Article
The use of trace metals as additives to the biogas production process to increase the biogas yield has been identified as a very common approach. Such additives can biostimulate the methanogenic bacteria to increase the biogas and methane production from the anaerobic digestion (AD) of livestock manure. The environmental impact of using the trace e...
Article
Full-text available
This study investigated the simultaneous effects of nanoparticles (NPs) addition to rumen fluid (archaea source) and laser irradiation of the mixture on biogas production from anaerobic digestion of dairy manure. Where, the previous study reported that the addition of 2 mg L⁻¹ nickel nanoparticles (Ni NPs) significantly (p < 0.05) increased the bio...
Article
Bio-based plastics have a huge market and a wide range of applications and then have become increased in economy and research. Due to the environmental hazard on all organisms and the pollution that happens in all natural resources such as air, water, plants and soil pollution and the limitation of quantity of fossil resources on our planet, the fu...
Article
Full-text available
Biomass energy, especially biogas production, is a renewable and sustainable form of energy. Biogas is becoming more important due to its environmentally-sound and energy-saving production technologies. The state-of-the-art focuses on the biostimulation of methanogens using nanomaterials which is a hot topic. Therefore, the objectives of this liter...
Article
To conduct calculations on biogas, methane and electrical energy production from different agricultural wastes, several calculations should be carried out; this requires time and effort, with the possibility of making mistakes. The objective of this study was to develop a tool to assist farmers and specialists in conducting these computations by pr...
Technical Report
Full-text available
Executive Summary: In rural areas of Egypt, communities face multiple challenges such as insufficient infrastructures for waste treatment, limited access to cheap energy, poor fertility soils and water retention capacity. A decentralized, low-tech biogas technology for combined waste treatment and energy production, anaerobic digestion can resolve...
Technical Report
Full-text available
Executive Summary: In rural areas of Egypt, communities face multiple challenges such as insufficient infrastructures for waste treatment, limited access to cheap energy, poor fertility soils and water retention capacity. A decentralized, low-tech biogas technology for combined waste treatment and energy production, anaerobic digestion can resolve...
Article
Recent advancement was the use of laser radiation to photobiostimulate the methanogenic bacteria in order to increase the biogas and methane production from the anaerobic digestion (AD) of livestock manure. However, the environmental impact of using the laser radiation as anaerobic bacteria stimulator still not evaluated. The objective of this pape...
Article
Full-text available
The irradiation of rumen fluid (RF) with laser source was hypothesized to enhance the anaerobic process and accelerate the manure digestion, which increases the biogas and methane production. The photobiostimulating effects of laser irradiation on biogas and methane production were investigated by irradiating the RF for 0.5, 1 and 2 h with 532 nm l...
Article
Livestock buildings are a main source of gaseous emissions, such as ammonia (NH3), methane (CH4), carbon dioxide (CO2), and nitrous oxide (N2O). Determination of spatial distribution of indoor gaseous concentrations is a particularly difficult task. Therefore, this study aims is investigation indoor concentrations of NH3, CH4, CO2, and N2O and anal...
Article
Full-text available
This work aims at developing a novel hyaluronic acid (HA) production method using magnetic nanoparticles (NPs). In a separate process, HA was produced with the addition of the amino acids (AA) as bio-additives. Regarding the NPs additives, the results showed that the highest dry weight of the produced HA was 0.264 g/l with the addition of 20 mg/l o...
Article
This literature review discusses several aspects of biodiesel production from microalgae. This paper elucidates the optimal bioenvironmental conditions for microalgae cultivation, process design of algal biodiesel production, physicochemical properties of lipids extracted from microalgae and the properties of the produced biodiesel fuel, and the tr...
Article
Full-text available
Several dairy farms still have old multi-span barns which are encountering several problems in summer and they are: low ventilation rates, non-uniformed air distribution, heat stress and high indoor concentrations of harmful gases. A solution has been suggested, in this study, which is refurbishing the roofs of old multi-span dairy barns by modifyi...
Book
Full-text available
This book provides useful information about pyrolysis, which includes the pyrolysis of biomass and pyrolysis of fossil fuels and petrochemicals. Additionally, this book elucidates and illustrates further innovative pyrolysis processes such as catalytic pyrolysis, spray pyrolysis, and microwave-assisted pyrolysis. This book discusses the production...
Book
Full-text available
Biosystems Engineering is a new scientific discipline that applies biological principles to develop new engineering solutions for agriculture, food, forestry, aquaculture, energy, environment, medicine, industry, and many other fields. This discipline integrates the life sciences with engineering and the physical sciences. Biosystems Engineering in...
Article
Nanoparticles (NPs) were hypothesized to enhance the anaerobic process and to accelerate the slurry digestion, which increases the biogas and methane production. The effects of NPs on biogas and methane production were investigated using a specially designed batch anaerobic system. For this purpose, a series of 2 L biodigesters were manufactured an...
Article
Clusters show intermediate properties between the isolated atoms and the bulk metals and represent the most elemental building blocks in nature (after atoms). They are characterized by their size, which establish a bridge between atomic and nanoparticle performances, with properties completely different from these two size regimes. If particle size...
Article
In this study, nanoparticles (NPs) were hypothesized to enhance the anaerobic process and to accelerate the slurry digestion, which increases the biogas and methane production. The effects of NPs on biogas and methane production were investigated using a specially designed batch anaerobic system. For this purpose, a series of 2 L biodigesters were...
Conference Paper
Full-text available
The aim of this research was to enhance the performance of the anaerobic digestion of livestock manure in plug-flow biogas digesters. Experiments were conducted to investigate the effects of passive solar collector and diurnal temperature variation on the performance parameters of a biogas digester. Two identical digesters were designed and manufac...
Book
Full-text available
This book provides useful information about Urban Agriculture, which includes the production of crops in small to large lots, vertical production on walls, windows (window farms), rooftops (green roofs), urban gardens, farmer's markets, economic models of urban gardening, peri-urban agricultural systems, and spatial planning and evolution of the la...
Chapter
Full-text available
This book provides useful information about Urban Agriculture, which includes the production of crops in small to large lots, vertical production on walls, windows (window farms), rooftops (green roofs), urban gardens, farmer's markets, economic models of urban gardening, peri-urban agricultural systems, and spatial planning and evolution of the la...
Book
The air pollutant emissions from agriculture have negative environmental impact and pertinent political importance (Kyoto Protocol and Gothenburg Protocol). Animal production is a major source of atmospheric pollutants, such as: methane (CH4), nitrogen oxides (NOx), carbon dioxide (CO2) and ammonia (NH3). Methane, nitrogen oxides and carbon dioxide...
Article
Nanoparticles (NPs) of trace metals such as Co, Ni, Fe and Fe3O4 were implemented in this study to compare their effects on biogas and methane production from anaerobic digestion of livestock manure. The most effective concentrations of NPs additives were determined based on our previous studies, and were 1 mg/L Co NPs, 2 mg/L Ni NPs, 20 mg/L Fe NP...
Chapter
This chapter provides perspectives on the environmental legislations, outline of emission abatement techniques, current problems, and required future research to solve these problems.
Chapter
This chapter discusses the emission abatement techniques of gases: manure management inside livestock buildings, additives, covering manure storages, aerobic and anaerobic treatment of manure, dietary manipulation. Additionally, the chapter illustrates the dust emission abatement techniques: spraying oil and water, oxidizing agents, ionization syst...
Chapter
This chapter draws conclusions on the discussed topic in this book and provides a summary.
Chapter
This chapter elucidates and illustrates the development, release, and spread of different pollutants such as gases, odor, and dust inside livestock, buildings. Furthermore, this chapter discusses the emission of pollutants from livestock, buildings, transmission, and emmission into the neighborhood.
Article
Full-text available
High levels of relative humidity negatively affect the efficiency of the evaporative cooling pads installed in livestock barns. Consequently, the productivity decreases causing economic losses. Therefore, this project aims at prototyping innovative dehumidifying/desiccant segments to be installed on the conventional cooling pads enabling them to pr...
Article
High levels of relative humidity negatively affect the efficiency of the evaporative cooling pads installed in livestock barns and greenhouses. Consequently, the productivity decreases causing economic losses. Therefore, this project aims at prototyping innovative dehumidifying/desiccant segments to be installed on the conventional cooling pads ena...
Book
Full-text available
This book provides useful information about bioremediation, phytoremediation, and mycoremediation of wastewater and some aspects of the chemical wastewater treatment processes, including ion exchange, neutralization, adsorption, and disinfection. Additionally, this book elucidates and illustrates the wastewater treatment plants in terms of plant si...
Chapter
Full-text available
This chapter elucidates the technologies of biological and chemical wastewater treatment processes. The presented biological wastewater treatment processes include: (1) bioremediation of wastewater that includes aerobic treatment (oxidation ponds, aeration lagoons, aerobic bioreactors, activated sludge, percolating or trickling filters, biological...
Article
Full-text available
Anaerobic digestion is a biological process used to convert organic wastes into biogas and a stable biofertilizer for agricultural applications as environmentally friendly products. The produced biogas is used as an alternative renewable energy source. The objective of this study was to investigate the effect of the additives CoCl2, NiCl2 and FeCl3...
Chapter
Full-text available
This study focuses on greenhouse gas (GHG) emission from livestock manure. In addition to the global warming potential of the GHGs (e.g., CH4, N2O, NO, CO2), ammonia (NH3) emissions contribute to global warming when NH3 is converted to nitrous oxide (N2O). Therefore, this chapter addresses in detail the GHG and NH3 emissions from livestock manure a...
Article
Full-text available
Anaerobic digestion is a biological process used to convert organic wastes into biogas and a stable bio-fertilizer for agricultural applications as environmentally friendly product. The produced biogas is used as an alternative renewable energy source. The aim of this study was to analyze the influence of paunch fluid (PF) content on biogas and met...
Article
Full-text available
Livestock manure is the main source of ammonia (NH3) emissions and an important source of greenhouse gases (GHG) especially methane (CH4) and nitrous oxide (N2O). Ammonia emissions contribute to eutrophication and acidification of water, soils and ecosystems. The greenhouse gases contribute to the global warming. These gaseous emissions can be redu...