this is the discussion board homework : Find a topic on water remediation, water
ID: 111371 • Letter: T
Question
this is the discussion board homework : Find a topic on water remediation, water pollution, water shortages, or advances in water technology (to list some suggestions) outside of the United States. Every person should have a different topic! Post your topic in the "Topic Selection" Thread. If you don't see a "topic selection" thread, start one! Try to focus on one aspect of a topic (for example - a particular city or region versus an entire country). Briefly summarize the topic and cite your sources. Do not just give us links to the topic; it should be presented in such a way that the reader does not need to do research. Depth is better than breadth. Your mini-essay should also contain a paragraph relating your topic to the chemistry concepts we've learned in lecture material, for example - discuss a balanced reaction, the chemical structure of the materials involved in the type of water remediation, acid-base chemistry, etc. In your 2nd to last paragraph (before your conclusion), write how the topic impacts either your daily life or your perception of the world.
I need help with replying to this two posts " please give me a positive response to this post: Response rubric :Quality and content of response posts (5 points) Posts provide specific, constructive, and supportive feedback to extend the thinking of colleagues. Posts encourage continued and deeper discussion. "
Thank you
Post 1:
The number of oil spills occurring in the Niger River Delta is disturbing. It is evidence of the harm water pollution has on the environment and people’s health. The Niger River Delta is located on the Gulf of Guinea on the Atlantic Ocean in Nigeria. It is considered the third largest river in Africa, and an estimated 110 million people live on its banks. It has been the site of major petroleum operations since the 1950’s and is heavily polluted by oil and hydrocarbons. According to a news article by DW, “There has been more than 500 oil spills in Niger river delta in 2014, and the area has been mismanaged for decades.”
The impacts of the oil spills are devastating. According to the article by DW, “Mangrove forests are being obliterated, fish and shellfish are dying off, and whole ecosystems are collapsing.” The spills contaminate the water, air and land with harmful carcinogens leading to many health concerns among the 110 million people living on its banks and the ecosystems surrounding. According to an article by Time, “Widespread pollution from the spills could have an impact on crops and lead to a 24% increase in childhood malnutrition. Crude oil contamination can also cause infertility and cancer.” According to another article by IRIN News, “Chlorea outbreaks are common. Every year hundreds of people die from this severe diarrheal disease which is spread through the contaminated water.”
It seems such spills are caused by accidents and or poor maintenance. Weak governance is translated into little government oversight or regulation of the spills. Environmental groups are calling for the oil companies to properly clean up these spills when they occur, but activists are saying this isn’t happening time and time again. According to a news article by The Guardian, “The devastating oil spills in the Niger Delta over the past five decades will cost one billion to rectify and will take up to thirty years of cleanup.” Since the cleanup will take so many years, activists have come up with other solutions that can help the people of Niger in the meantime. According to the IRIN news article, “In Niger, many riverbank communities drink water directly from the river. The government has set up a program to train and educate villages in water use and management.”
In chapter five of our textbook it describes a water solution device I feel would save many lives of the people of Niger. It’s called a Point-of-Use Lifestraw. Since many people living in riverbank communities throughout Niger drink the river water directly, this LifeStraw would help make the water safe to drink. The Lifestraw was invented by a European company named Vestergaard Frandsen, and is a pipe filter that removes virtually all bacteria, viruses, and parasites from water. You can use this device to directly suck up water from a river, lake or stream making it a very good option for the people of Niger to use.
After researching this topic, it has impacted my life because I don’t want to take the clean water I drink for granted anymore. According to The Guardian, “Since life expectancy in Nigeria is less than 50 years, it is a fair assumption most people in Niger have lived with chronic oil pollution throughout their lives.” I drink water from the tap, and I don’t have to worry about getting sick like the many people of Nigeria and other places around the world so it makes me grateful for what I have. It also inspires me to make a more conscious effort to pay attention to what’s happening in the world when it comes to water pollution.
In conclusion, water pollution affects the quality of life for people and living things around the world and is detrimental to the environment. We humans are dirtying our water faster than nature can regenerate clean water. The Niger River Delta is evidence of this problem, and hopefully government within Nigeria implements their plan to start cleaning the river soo
Post 2:
Japan has been a scene to have many of issues with pollution. Wheather it is from the sky or the water it has ranged all over this eastern island throughout the years. The notable one in the modern-day is the Tohoku earthquake and tsunami in 2011.
"Earthquake was followed by the Tsunami that causes waves of height up to 40 meters. According to Japan’s National Police Agency, 15,889 deaths were confirmed. Nearly 6,152 people were injured, and more than 2,600 were missing. Millions of buildings were completely collapsed."
The most notable part of this event is the two power plants in Fukushima. Due to this event, many families were evacuated from where the plant was to try and stop anybody from getting radioactive poison.
To first understand how the reactors became A high stake problem in Japan. we first need to understand that the power reactors had two different types of fail-safes for this event to happen. What happens within the uranium which is capsule inside a fuel rod which creates nuclear fission. The rods are then submerged in the water keeping them cool. If there is not enough water inside the capsule, then the fuel rods will melt. The first failsafe was during the earthquake to where water would be cycling in and out of the area, but they stopped for mysterious reasons. The second fail safe began with diesel powered water hitting the fuel rods which also stopped due to the tsunami that followed up after the earthquake.
It became very clear that the area must be evacuated for the least amount of the Japanese residence to get radiation exposure. Although the evacuation saved many, some were still exposed to it, and many of families lost their home due to the incident. What became more of the problem was that the radiation of the uranium was leaking into the Pacific Ocean. Due to this disaster, the government has made some fair changes for the future of Japan.
"The Japanese government has strongly backed the research, development, and adoption of clean technology. The adoption of clean technology was brought into focus after Japan began shutting down many of its nuclear reactors in the wake of the Fukushima disaster. "
While watching television about the event, I had no idea that there was such an impact on the nuclear reactors. I knew that the debre of the tsunami would carry over into the Pacific Ocean, but I had no idea that there would be an issue with uranium.
This event caused much attention in the western world with many of family and friends coming together to help out the citizens of Japan. The government is now becoming much more strict on their economic, technological growth and safety.
"The country major obstacles on its road to a clean technology future appear to be largely bureaucratic and political in nature. The country is also widely expected to continue evangelizing the values of clean technology on the international stage."
Explanation / Answer
ANSWER:
WATER POLLUTION:
When toxicant substance enter into the lakes, streams, rivers, oceans, and different water bodies, they get dissolved or lie suspended in water or get deposited on the bed. This ends up in the pollution of water whereby the standard of the water deteriorates, poignant aquatic ecosystems. Pollutants may also course down and have an effect on the groundwater deposits. pollution has several sources. the foremost polluting of them square measure town waste matter and industrial waste discharged into the rivers. The facilities to treat waste water don't seem to be adequate in any town in Republic of India. Presently, solely regarding 100% of the waste water generated is treated; the remainder is discharged because it is into our water bodies. owing to this, pollutants enter groundwater, rivers, and different water bodies. Such water, that ultimately lands up in our households, is commonly extremely contaminated and carries disease-causing microbes. Agricultural run-off, or the water from the fields that drains into rivers, is another major water waste because it contains fertilizers and pesticides.
Effects of pollution
The effects of pollution don't seem to be solely devastating to folks however conjointly to animals, fish, and birds. contaminated water is unsuitable for drinking, recreation, agriculture, and trade. It diminishes the aesthetic quality of lakes and rivers. a lot of seriously, contaminated water destroys aquatic life and reduces its procreative ability. Eventually, it's a hazard to human health. no one will escape the consequences of pollution. The individual and therefore the community will facilitate minimize pollution. By easy work and management practices the quantity of waste generated will be decreased .
1) BOD and COD
2) Eutrophication
Causes of water pollution:
Pesticides: Pesticides that get applied to farm fields and roadsides and homeowners' lawns break out into nativestreams and rivers or drain down into groundwater, contaminating the H2O that fish swim in and therefore the water we have a tendency to humans drink. It's tempting to assume this is often principally a farming drawback, however on a square-foot basis, householders apply even a lot of chemicals to their lawns than farmers do to their fields! Still, farming may be a huge contributor to the current drawback.
Fertilizers / Nutrient Pollution several causes of pollution, as well as waste matter, manure, and chemical fertilizers, contain "nutrients" like nitrates and phosphates. Deposition of atmospherical gas (from gas oxides) conjointly causes nutrient-type pollution. In excess levels, nutrients over-stimulate the expansion of aquatic plants and alga. Excessive growth of those sorts of organisms clogs our waterways and blocks light-weight to deeper waters whereas the organisms square measure alive; once the organisms die, they dissipate dissolved O as they decompose, inflictingoxygen-poor waters that support solely diminished amounts of marine life. Such square measureas are ordinarilyknown as dead zones. Nutrient pollution may be a explicit drawback in estuaries and deltas, wherever the runoff that was aggregate by watersheds is finally drop at the mouths of major rivers.
Chemical reactions of water pollution:
Many chemicals endure reactive decay or natural action, particularly over long periods of your time in groundwater reservoirs. an interesting category of such chemicals is that the chlorinated hydrocarbons like trichloroethane (used in industrial metal degreasing and physics manufacturing) and anthelminthic employed in the cleansing trade. eachof those chemicals, that square measure carcinogens themselves, endure partial decomposition reactions, resulting in new dangerous chemicals (including dichloroethylene and vinyl chloride).
Groundwater pollution is far harder to abate than surface pollution as a result of groundwater will move nice distances through unseen aquifers. Non-porous aquifers like clays partly purify water of microorganism by easy filtration (adsorption and absorption), dilution, and, in some cases, chemical reactions and biological activity; but, in some cases, the pollutants simply rework to soil contaminants. Groundwater that moves through open fractures and caverns isn'tfiltered and may be transported as simply as surface water. In fact, this could be aggravated by the human tendency to use natural sinkholes as dumps in areas of karst topography.
Conclusion:
If we simply use less chemicals, oil, and everything else, there will be less opportunities for irresponsible humans to further damage our precious water supply. It seems as if plenty of people can reuse and recycle, but we, especially we Americans, need to adopt the most important ideal in the phrase.
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