There have been many oil spill accidents in history, including 19 10 oil spill in kern county, USA in March, with an oil spill volume of 378 million gallons. Bay of campeche oil spill in June 1979, oil spill volume1400,000 gallons; More recently, on April 20th, 20 10, the Deepwater Horizon drilling platform in the Gulf of Mexico exploded, with an oil spill of about 200 million gallons. This is not the first oil spill in Russia, but this time it is slightly different. It's not unprocessed crude oil, it's processed diesel oil. Diesel oil can only be produced by petroleum distillation, catalytic cracking, thermal cracking, hydrocracking, petroleum coking and other processes, which is far more harmful to the environment than unprocessed petroleum.
Most common oil spills occur at sea. Everyone should have seen such a picture. Oil will stick to the wings of birds and affect their flight ability.
Diesel oil leakage occurs on the ground, and its impact on people and animals undoubtedly exceeds the oil spill in the ocean. As far as the species and quantity of affected creatures are concerned, it is unbearable pain. Due to the flow direction of the river, the leaked oil gradually flows with the river to the Arctic Ocean.
After reaching the Arctic Ocean, the oil film on the sea surface will reduce the oxygen exchange speed between the atmosphere and seawater, and the marine ecological environment may be unbalanced, so its productivity will be greatly reduced. When oil stays in water for a long time, aromatic compounds will gradually accumulate in the experience of marine life. If people eat these marine life, these chemicals will enter the human body. The oil that sinks to the bottom of the sea will also have a negative impact on the normal production of benthic organisms. Some of the oil that sank to the bottom of the sea was decomposed by microorganisms, the density became smaller, and it floated to the surface of the sea. This happened again.
You can also see rivers dyed red by diesel oil from satellite pictures. At present, the polluted area has reached 654.38 million square meters.
Pollution is easy, but recovery is difficult! It requires a combination of physical and chemical methods. Simply put, there are at least the following steps:
1. Cut off pollution sources and prevent oil leakage. If we don't solve the problem of pollution source leakage first, everything behind will be useless. To use idioms, it is to cut the bucket to the end.
2. Use some physical methods to remove the oil stain on the surface, such as using an oil absorber to absorb oil, and using a water grid and a skimmer to scrape oil. Only by removing the surface pollution can we continue to solve the deeper pollution problem.
3. Spray chemical dispersant. After the second step, we only remove the oil visible to the naked eye, but the small molecules of oil are still in the sea. At this time, some chemicals are needed to decompose these invisible things. However, the use of chemicals may lead to secondary pollution, and only a small amount can be used!
This diesel oil leakage may have some impact on the world economy, but its biggest impact must be ecology! Although we don't have effective control measures at present, I believe this problem will be solved with the development of science and technology! Do you have any good ideas on how to deal with the oil spill? Welcome to discuss in the comments section!
References:
Wikipedia (a multilingual encyclopedia collaboration project based on wiki technology is also an online encyclopedia written in different languages, whose goal and purpose are to provide freedom for all mankind) is an open encyclopedia.
Study on the harm of oil spill and its preventive measures.