The hottest plastic particles reappear, and water

2022-09-21
  • Detail

Plastic particles reappear and water source recycling treatment is imminent

plastic particles have been found in Boden lake, the third largest freshwater lake in Europe, after the Great Lakes and Garda Lake in Italy. ISF (International Maritime Union), a lake research institution, has listed the search for plastic particles as one of the routine work. They use advanced technology to map the structure of the lake bottom, but it is difficult to find the existence of plastic particles only by this point, because the lake area is huge, the depth is different, and the liquidity is strong. A series of objective conditions have caused many difficulties in searching for plastic particles

Bodensee Lake (German: Bodensee) is also known as kons. If only the increase of vanadium pentoxide by 100000 yuan/ton in July is calculated, Lake Constance (English: Lake Constance), located at the junction of Switzerland, Austria and Germany, is jointly managed by the three countries. The lake area has beautiful scenery and charming scenery. Boden Lake consists of three parts: Obersee, Untersee and seerhein. Boden lake covers an area of 536 square kilometers, and its deepest point is 254 meters

there is plastic particle pollution in Boden Lake

coupled with the usual accurate protection of the experimental machine, ISF believed in October 2013 that the new company would still stand at the high point of the material industry in the future and send scientific research ships to search the lake area to see if they could find some substances they wanted in the water. Gerhard Schroeder, director of ISF, said that the previous search was not specifically aimed at plastic particles. Florian FIO, a researcher at the Environmental Laboratory of the Federal Institute of technology in Lausanne, is responsible for transporting surface water and sediment samples to land

according to the experience of water quality investigation in other regions, fior judged that plastic particles did exist in Boden lake. He added: "in 2012, after the researchers analyzed the water samples and the shore, the content of plastic particles shocked everyone."

in Boden lake, in addition to expanded polystyrene particles, scientists have also found hard plastic parts, plastic films and even fishing lines left by anglers, as well as plastic beads commonly used in daily necessities and beauty products. These values are at the same level as those in the Mediterranean, and the Federal Institute of technology has also found micro plastic particles in fish

through the occurrence of various signs, people began to worry about the spread of large-size and micro plastic particles from inland freshwater rivers and lakes to the world's oceans. Lake Garda in Italy is another affected area

Luis, FIO's colleague, said, "we are studying the hydrophobic pollutants on the plastic surface, which may be eaten and absorbed by birds and fish"

although the East Bank of Boden Lake in Austria is small, it is still not immune to lake water pollution. In November 2013, Austrian politicians declared in the European Commission of the house of lords that "40% of the bottom of Boden lake has been covered by plastic waste"

lubw announced on August 8 that samples would be taken in the Rhine River, the Kaka River and lake Boden in order to further explore the existence of micro plastic particles. The test results will be officially released in the autumn of 2015

minister untersteller said: "Plastic has played a transformative role in many areas of our lives. It is precisely because plastic can do anything that leads to its ubiquity, and more and more problems are exposed to us. The decomposition cycle of plastic is as long as a hundred years. Now, plastic has been left in nature. We do not consider the life span of future generations for our own convenience. Although the development of the plastic industry is considerable, it is difficult for us to predict the risks."

in August 2014, lubw announced that the study showed that there were plastic deposits in Lake Garda, Italy, and called on "European countries should take responsibility for this and not allow plastic pollution to continue to spread in lakes and oceans"

untersteller said, "we attach great importance to this matter. Politically, we have entrusted lubw to investigate the existence of plastic beads in the waters of Baden Wuerttemberg. When the facts are proved, we can take the next step targeted, whether in the domestic or international field."

according to laforsch, the plastic particles in Garda lake mainly come from the packaging of consumer goods, or directly arrive in the lake through the wrong treatment, and are corroded to form micro plastic particles

samples taken from sediments in the waters of Baden Wuerttemberg will first be separated by the Munich MPSS separator according to density. Later, in recent years, researchers at Roy University will use the "identification and quantification of micro plastic performance spectrum method" to extract micron sized plastic particles

note: the reprinted content is indicated with the source. The reprint is for the purpose of transmitting more information, and does not mean to agree with its views or confirm the authenticity of its content

Copyright © 2011 JIN SHI