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Bioremediation
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Recommended: Bioremediation
Bioremediation is the technique of using living organisms to clean up contamination in land and water is called bioremediation.
A subset of bioremediation is phytoremediation (technique of using plants as environmental clean-up remedies. petroleum industry employs bacteria to clean up after oil spills and leaks have occurred. oil-loving bacteria break down the chemicals into natural substances, including carbon dioxide gas, a type of alcohol, and water.
Bioremediation, while safe relies on natural processes of bacteria. Therefore it takes a long time to complete.
Scientists who know about bioremediation are needed to carry out the remediation. This means hiring people to do the work, which can get expensive.
Bioremediation uses bacteria and fungi to break down oil. Nitrates or fertilizers are added to the spill to provide nutrients to quicken the growth of the bacteria and fungi.
Advantages
-Bioremediation an ecologically safe and natural process
-Cost effective, 70% less than most other ways of solving contaminated water
-Can clean hard to reach areas
-Air quality and air pollution from chemicals evaporating are eliminated
-After bioremediation the environment is restored to a clean condition
-No health risk to biotic things
Disadvantages
-Not a good choice to clean up an abundance of spill
-Maintaining the nutrients levels needed could be a major challenge
-Labour intensive
-Takes a very long time to complete
Bio” is a prefix meaning life. “phyto” is a prefix for plant. The word “remediation” comes from the word “remedy” which means to correct.
What is it?
Bioremediation is the use of microbes to clean up contaminated soil and groundwater. Microbes are very small organisms, such as bacteria, that live naturall...
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...oremediation it can get costly. Prices for enhanced bioremediation can range from $30-$100 per cubic meter.
$16 to $35 per cubic meter is common for soil treatment.
Does the technology benefit the environment long term or short term?
Bioremediation benefits the environment long term, this process restores the environment back to almost an original state. Bioremediation has been successfully used to clean up gasoline , crude oil, pesticides, and sewage, on both land and water. Some contaminated sites are not easy to access with microbes. For example, when cleansing groundwater, holes in the ground and pumps to circulate microbes, nutrients and air are needed. Not all contaminants can be removed by the process of bioremediation, so it is often the second step in removing contaminates. This is to prevent the harmful chemicals from spreading further.
For example, when the labors take oil from the ocean or sea, the oil may leak from the pipes and it will mingle with water. That time the living things in the sea are destroyed by the polluted water. So many fishes and sea organism may
our pipelines and sewers where it goes to a treatment plant to be treated, but
After the oil/gas mixture is drawn from the ground, it is then stored into a storage tank and allowed to rest for a while. Then the gas is piped off to a set of distillation columns to clean up the ethane. In order to activate the chemical reaction necessary to separate the ethane, a thermal cracking unit (a sort of long heated tube) i.e. a plug flow reactor is used. After a series of distillations, ethylene exits the tube.
Species reintroduction has become a hotly debated topic, especially in the states experiencing actual reintroduction efforts. The reintroduction of the lynx into Colorado appeals to many who would like to return the area to it's pristine, pre-developed state. However, the actual costs, both financial and emotional, make this program impractical and illogical.
Discerning the spatial patterns of biodiversity and understanding their ultimate (why) and proximate (how) causes is very dear to biogeography and is one of the key concepts of Macro ecology. Some places on earth contain more species as compared to others. All species occurring at a given space and time either originated (speciated) there or dispersed and arrived from another place and settled there. Biogeographers try to understand the past and current distributions of species by incorporating historical, evolutionary and ecological factors. Earlier biogeographers or the ‘naturalists’ in their sacred quest to serve ‘the creator’, travelled to various parts of the world and imparted valuable knowledge about the diverse patterns and processes of nature. Linnaeus (1743), on the one hand, hypothesized that early Earth was filled with water except for it’s highest mountain top i.e., Mount Ararat which was known to be the site of paradise and as the sea level dropped the exposed land was colonized by plants and animals that migrated down from high elevational zones of Mount Ararat whereas Willdenow (1805) hypothesized that within each geographical region of the earth, plants and animals were first placed and later survived the great flood on many mountain ranges (Lomolino,2001). Von Humboldt and Darwin in the South American Andes and Wallace Southeast Asian islands noticed the decreasing trend in elevational species richness patterns (McCain and Grytnes, 2010). Later work done by Grinnell (1917), Whittaker (1952), Terborgh (1977, 1985) on elevational species richness became accepted and set a established pattern for all species for more than two decades (McCain and Grytnes, 2010). However current researches on elevational gradients are...
Like oil, natural is a product of decomposed organic matter, usually from ancient marine microorganisms left on the bottom of bodies of waters mixed with mud, silt, and sand on the sea floor, gradually becoming buried over time. Since it is sealed off in an oxygen-free environment and exposed to increasing amounts of heat and pressure, the organic matters undergo a thermal breakdown process that converts it into hydrocarbons. The lightest of these hydrocarbons exit in the gaseous state under normal conditions and are known collectively as natural gas.
There are several types of treatment methods present but biological treatment methods have gained much traction in the recent years due to their low operation costs, comparatively benign effects on the environment and their ease of handling and maintenance. Biological wastewater treatment methods can be subcategorized into dispersed growth systems and attached growth systems. Biofilms fall under the latter category (Sehar & Naz, 2016)
contaminate the groundwater when fertilizers, pesticides, and septic tanks leak. If they are not installed properly and leak, the bacteria and the human waste goes into the groundwater and contaminates it.
Microbial decomposition releases nutrients into the environment that are needed by other organisms. Microbes are also involved in the cycling of many other important compounds in — and between — ecosystems, including oxygen, carbon and nitrogen. Many microbes use the energy of sunlight to convert carbon dioxide to oxygen, which we need to breathe. As they do this, they create new organic material — themselves — which are then eaten by other organisms. In this way, the cycling of nutrients and energy
... (The Issues: Factory Farming, n.d.). Nutrients and bacteria from that waste can also contaminate waterways, disturbing the aquatic ecosystems.
The process of disposing waste, producing food, and purifying bodies of water is useful today. For example, communities that live in the desert, like in the southwestern United States and in the Middle East, can use this process to farm and survive. They can use the newly purified water for their crops or for their own consumption. In addition, when algae purifies water, it releases oxygen.
Environmental application such as detection in pesticides and river water contaminants such as heavy metal ion. detecting level of toxic level before and after bioremediation.
Microorganisms are beneficial to our environment. They produce the oxygen that humans breathe. That amounts to around 50% of all oxygen in the Earth’s atmosphere. Microorganisms are also responsible for breaking down dead organisms, animals, waste, and plant litter. The Earth would be filled with corpses without them (Properties of Microbes).
The oil refinery converts crude oil into valuable products and supplies. These products are made and sent to many countries abroad, in which are transported on land or along rivers and canals. Crude oil is then arranged and categorized into segments by fractional distillation. Raw crude oil, or unprocessed crude oil, is not normally beneficial in most industrial applications. Low sulfur crude oil has been valuable as a burner fuel to construct steam for the force of seagoing vessels. The lighter elements have the ability to construct explosive and dangerous vapors in the gas tanks. There are extremely hazardous, and are often used in war ships. The remaining hydrocarbon molecules are filtered from crude oil and used towards lubricants, feedstock, plastics, and fuels.
...e microorganisms to treat and clean contaminated water and soil as well as use it to remove contaminants naturally. I am so ready and eager to researching in environmental engineering because it will give me the opportunity to access another area in my field. One of my future goals is to teach an environmental engineering course at a university part time. This of course requires a graduate degree.