«Плассмастың жаңа өмірі» сынып оқушысы Ғылыми жетекшісі: 2021-2021 оқу жылы
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пластмасса
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Any economic activity of human beings pollutes the biosphere with different wastes which threatens the health and lives of the population, the reduction of species of flora and fauna and the balance in the environment. Cannabis, industrial waste, rubbish, urban grass can not be considered as pollutants that are environmentally-friendly sources of raw materials. Recycling of household waste does not reduce the actual volume of their collection. They are always among us and endanger the health and lives of the people. Lack of testing ground for domestic wastes in rural areas or their discrepancy to ecological, sanitary and epidemiological requirements leads to the occurrence of random dumps. It is important to turn them into useful articles according to the requirements of time. Especially after using plastic containers, we have the opportunity to spend on our needs before we throw away the trash. The relevance of the research: There is a very fine nature in nature. It can itself clean up the waste that it emits, without our help. And human nature has no value in spontaneous cleansing of toxic, harmful waste of the national economy, which has come to life thanks to man-made manure. Every day, plastic bottles for dust-removing are lying on the ground for up to 100 years, and ordinary polyethylene packages are lying for over 200 years. Canned troughs and glass breaks up to 1,000 liters of ground, and consumes soil fertilizer. Apply toxic substances to the air when you remove the leaves. (anhydride, benzopyrene, hydrogen sulfide and dioxin). Its smoke rises to just 1 m, which often negatively affects the respiratory ways and mental functions of young children. At present, millions of plastic bottles are produced and dumped; In small towns, about 20 tons of plastic bottles per month will be thrown away; At present Kazakhstan is 100 mln. tons of household appliances and 25 billion tons of industrial wastes. In the world, household wastes are significantly higher than that of other wastes. This is a new direction for Kazakhstan, but the desire to obtain the cheapest raw materials, which is the secondary polymer, is quite accessible, so equipment and technology and experience can be of great benefit for secondary processing. жүктеу/скачать 0,98 Mb. Достарыңызбен бөлісу:
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