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Biofuel advantages and disadvantages summary
Biofuel advantages and disadvantages summary
Biofuel advantages and disadvantages summary
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Introduction:
Bioprocess engineering science is a big field of science, where four of different major subjects such as chemical engineering, Molecular Biology and Biotechnology, Biomedical Science, and Engineering Material; work together in harmony to solve many difficult problems which is possible to face the scientist in Biomedical Science, energy product, nutrition and designing devices such as bioreactors [1], With modified and added.
Bioreactor is one of the most familiar words in bioprocessing engineering's books. Which mean a place which is designed to be suitable for the growth of specific types of bacteria, fungi or other microorganisms by provision of the necessary conditions for its growth [2]. These microorganisms are doing biochemical processes that produce useful materials for humanity, Such as some kinds of medicines, enzymes and fuel. In this case the fuel which made by microorganisms is called bio fuel [3]. Bio fuel often is environmentally friendly, and has many advantages such as it is cheap, it is a renewable power resource and it is product able easily. On the other side it has some negative point such as it need a lot of time to make few litter of bio fuel when we use the normal method to produce it. In this project some points of designing devices, methods and technology of bioreactors and using it to producing bio fuel will be discussed.
Uses of Bioprocess Engineering:
1-Some important points before starting bioreactor project:
First of all, and before starting design or work on any bioreactor, some points that relate with the future of the bioreactor project should be cleared. One of these point is that what is the output that we want to reach, which is must be a very useful things and...
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...s a whey. The weakness in this method is the decreased in the efficiency of optical switching.
The fourth production method is the dark fermentation system which uses the Fermentative bacteria which can produce hydrogen all the time without light or oxygen. The main drawback for this mode is that the output gas mixture contains carbon CO2 which has to be separated. Also there is a decrease in the H2 production.
Conclusion:
In conclusion, because of the limitation of fossil fuels and the damaging which caused by it, the world today is really need to clean renewable power resources, to save the planet and to have a save future . This clean resource can be found easily in biotechnology and bioprocess engineering studies which include a lot of different researches and innovative solutions for the most important condition of powering and developing.
The purpose of this experiment is to produce ethanol in an anaerobic-based environment through fermentation of yeast. After that, the solution made fro this will be further distilled to create a very high percentage solution of ethanol.
The rapid pace of vaccine development convinces people that they are safe from the infectious diseases. Unfortunately, the anthrax outbreak in 2001, having killed five people, reveals the vulnerability of the public health, suggesting that further research on contagious epidemics should be developed abruptly. In response to this issue, the National Institute of Allergy and Infectious Diseases (NIAID) granted Boston University a $128 million funding for the construction of a new leading facility known as the National Emerging Infectious Diseases Laboratory (NEIDL or BU Biolab), which would be sited on the Boston University Medical Campus, to battle against contagious ailments. Besides conducting research on infectious diseases, the BU Biolab will also perform research to prepare for bioterrorism (Le Duc). According to the Center for Disease Control, there are four levels of increasing of containment for research on infections ranging from Biosafety Levels 1 through 4 (BSL-1 to BSL-4). While much of the research on epidemics is done in laboratories with BSL-2 to BSL-3, the BU Biolab, with the highest level of precaution, BSL-4, will conduct research on rare contagious epidemics including anthrax, ebola, and plague, which are usually life threatening.
Biomedical engineering is a branch of science that connects engineering sciences with biological sciences that started around the 1940s (Citron & Nerem, 2004). Biomedical engineering is the discipline that promotes learning in engineering, biology, chemistry, and medicine. The objective for biomedical engineers is to enhance human health by incorporating engineering and biomedical sciences to solve problems. Some of the accomplishments made from biomedical engineering are prosthetics, robotic and laser surgery, implanted devices, imaging devices, nanotheranostics and artificial intelligence. As we head towards the future, biomedical engineering is anticipated to become an even greater part of the medical industry and bring about innovating
Kapley, A., Purohit, H. J., Chhatre, S., Shanker, R., Chakrabarti, T., Khanna, P. (1999). Osmotolerance and hydrocarbon degradation by a genetically engineered microbial consortium. Bioresource technology 67, 241-245.
Biomedical engineering is expanding very rapidly. The techniques and concepts of biomedicine date back to ancient Egypt with a wooden big toe (The Whitaker Foundation). The field of Biomedical engineering is needed for the aging population of the baby boomers. Recent advances made since 1990 vary cell-based skin substitutes to robotic surgeons. The advances made in recent years have undoubtedly expanded the overall life span of the human race; humans can now live a longer and more joyous life.
This lab has two sections. The first section deals with fermentation. The purpose of the fermentation lab is to alter 5 different independent variables (temperature, acid ph, alkali ph, enzyme concentration, and substrate concentration), to learn about their effects on the ongoing process of fermentation.
Today our society is using more energy than ever. With the increase in demand for energy, problems are presented that have to be addressed. One of the biggest and most prevalent problems is the need for clean, renewable, sustainable energy. On the forefront of these problems comes the following solutions: nuclear energy, hydro-electric energy, and photovoltaic energy. With the need of energy in today’s current world, exploring different ways of producing power are necessary. The differences and similarities of nuclear energy and alternative energy are important to look over and examine in depth, so that it is plain to see the positive and negative effects of energy production.
Microbial Fuel Cells use bacteria to convert waste into electrical energy. These bacteria break down almost any biodegradable organic waste including sewage and water waste and use it as fuel to generate power. Places like Penn State University and The Biodesign Institute in Arizona State University are already testing and improving this new alternative energy. According to Penn State University they have achieved in producing 1.5 watts per meter squared of amount of waste water taken in and believe that a large industrial plant will be able to produce near 0.8 watts per meter squared and will be able to support about 500 homes (9). This is a new technology that is being avidly researched, however it is not currently used in large industrial plants or treatment centers. However this new technology has already been funded by organizations like NASA, OpenCEL and NZ Legacy (7). Even a small prototype has been built by Australian Beer Company Fosters in May 2007; it has 12 modules and already produces carbon dioxide, electricity and clean water. (12). The usage of this energy is slowly increasing as more research has been invested into it and its advancements.
In attached growth systems, microbes get attached to a surface to form a biofilm. The formation of the biofilm depends on factors like the type of surface used, presence of polymeric molecules on the surface and cell-cell interactions. Wastewater is passed through the surfaces on which the biofilms are attached. The microorganisms in the biofilm utilize the organic matter present in the wastewater and subsequently, the biofilms grow. There are four predominant reactor types that utilize this technology. Trickling Filters (TFs), Rotating Biological Contactor (RBC) Systems, Constructed Wetlands and Membrane Bioreactors (MBRs) (Sehar & Naz, 2016). Trickling Filters and Membrane Bioreactors are focused on in this
We can achieve a successful oxidation by boiling gently under reflux with acidified sodium dichromate. The fourth practical is to distillate ethanoic acid solution; this is the continuation of the third practical and involves distilling the mixture to obtain a reasonably pure sample of ethanoic acid. The final practical is the filtration of ethanoic acid solution; this involves determining the actual % yield of ethanoic acid by titration against 0.05 M sodium hydroxide. Practical one Equation yeast will carry out anaerobic respiration, using the glucose to enable it to grow and multiply. The equation above shows what the yeast will accomplish inside the bioreactor.
Gasification products can be divided in fuel gases and non-fuel gases. The fuel gas (mixture of Carbon monoxide, Hydrogen and traces of Methane) is called producer gas. In particular, section 2.2 focuses on the non-fuel gases such as Carbon dioxide, Nitrogen, some hydrocarbons and water steam which cannot be utilized for combustion. Table 1 shows that according to the gasifier system and the gasifier agent, the biogas composition
Biotechnology is a group of technologies that work together with living cells and their molecules to prolong life (Keener and Hoban et al., 2014). Today biotechnology can be used in a variety of ways such as in an industrial setting where they use it to create enzymes to synthesize chemicals, in an environmental setting where they use it for waste and pollution prevention and lastly it can be used in medical applications such as in pharmaceuticals, genetic engineering, DNA fingerprinting and in lastly it can be used in stem cell therapy (Keener and Hoban et al., 2014). Everyone in today’s society depends and uses biotechnology in one form or another, biotechnology is essential for our health and wellbeing.
Biogenetic engineering is the ability to change or modify a genome of an organism through the use of biotechnology. We use this in order to add a new gene to an organism that it would originally would not contain. This creates a better suited organism to adapt to any form of change it may have to deal with. Biogenetic engineering works by physically entering the organism’s genome and removing it and inserting the genome into another organism this allows the organism that had received the new trait to express the new code. The steps for genetic engineering is by first finding an organism that contains a trait that is desired, then scientist will extract the DNA, then once the gene has been extracted it goes through gene cloning, this is the process in which the gene is located and copied from the different of genes that had been extracted, and sometimes the desired gene will be modified so that it will be able to perform desirelly within the organism, the transgene, which is the new gene, will be inserted into the organism, once inserted scientist will allow for breeding in order to perfect the desired gene. Biogenetic engineering allows for the manual transport of genes from one organism to the next. The genes that we use for bioengineering are beneficial since we are able to perfect this genes for an unlimited amount of usage. Bioengineering also allows a single or a few desirable genes to be inserted into an organism rather than breeding which has at times undesirable traits that might not be as beneficial to the organism as the gene that is being inserted manually in bioengineering.
The concept of this essay is to stress that biofuels are a viable and sustainable energy source than fossil fuels, showing its advantages but not ignoring its disadvantages which also enlightens us about the cleaner and renewable natural resources. Biofuels is an alternative source of energy which can end the global dependence on fossil fuels.
Harrison R. M. And Hester R. E., (2003), Issues in Rnvironment Science and Technology, No 19, Sustainability and Environment Impact of Renewable Energy Sources, (by) The Royal of Chemistry.