The earth is our home, and this home is being surrounded by garbage. As the masters of the 21st century, we can't just worry and complain, but we have to act and act green. Garbage is not useless, and waste products are not useless. Garbage resources and recycling is not technically difficult, the difficulty lies in the waste casually discarded, mixed and piled up to become garbage; therefore, as educated civilized people of the new century, we should participate in the "hand up" garbage source classification activities, in order to purify our living space to do a little dedication, dedication and a piece of love.
Living garbage is a by-product of human life. With the rapid development of social economy and the high concentration of urban population, the production of living garbage is gradually increasing. General household garbage can be divided into five categories such as waste paper, plastic, glass, metal and biological waste. The main hazards of garbage to human life and environment are:
First, occupying too much land. Piles of garbage in the outskirts of the city, encroaching on a large amount of farmland. Now the average annual production of garbage per person in Beijing is 440 kilograms, the city's annual production of about 4 million tons, equivalent to two and a half Jingshan. There are already more than 4,500 garbage dumping sites in Beijing, covering more than 10,000 mu of land. Garbage also stays in nature for a long time: cigarette butts and wool fabrics for 1-5 years; orange peels for 2 years; painted wooden boards for 13 years; nylon fabrics for 30-40 years; leather for 50 years; cans for 80-100 years; plastics for 100-200 years; Glass 1000 years. For this reason, we should not only create less garbage, but also pay attention to the classification of garbage, recycling and turning waste into treasure. Less disposable chopsticks, cups, lunch boxes and other products, more reusable products, reduce the consumption of valuable forest resources; less plastic bags, shopping bags, reduce the harm of urban "white pollution"; buy non-fluorine refrigerators, air conditioners and other environmentally friendly appliances, to protect the ozone layer of the atmosphere; less use of high-concentration detergents, the use of non-phosphorus laundry detergent, to reduce water pollution. The first is to reduce water pollution.
Secondly, it pollutes the air. Garbage is a complex mixture of ingredients. In the transportation and open storage process, the decomposition of organic matter to produce a bad smell, and to the atmosphere to release a large number of ammonia, sulfide and other pollutants, which contains organic volatile gases up to more than 100 kinds of these releases contain many carcinogenic, teratogenic substances. Plastic film, paper and dust are flying with the wind to form "white pollution".
Third, pollution of water bodies. Harmful ingredients in the garbage are easily washed into the ground water bodies by rain, in the garbage dumping or pit filling process will produce a large number of acidic and alkaline organic pollutants, while the heavy metals in the garbage will be dissolved out. The exudate generated by the garbage pollution source will enter the underground water body through soil infiltration; the garbage is directly discarded into rivers, lakes or oceans, which will cause more serious pollution. You see: Summer Palace, Beihai floating on the water surface of the plastic bottles and lunch boxes, Fragrant Hills, Badaqi forested mountain paths scattered and tree branches hanging on the plastic bags, bread paper, etc., some tourists only want their own convenience, resulting in tourism environmental pollution. If the animals accidentally eat the white trash will not only hurt their health, and even lead to death.
Fourth, soil slagging. Garbage directly applied to agricultural land, or only after simple treatment for agricultural land will destroy the soil's granular structure, physical and chemical properties and water retention, fertilizer capacity. In particular, plastic bags, plastic sheeting, if buried in the farmland, the roots of crops can not grow, the farmland will be reduced, the food available for people to eat will be reduced.
Fifth, fire hazards. Garbage contains a large number of combustible materials, in the natural stacking process will produce methane and other combustible gases, in the case of open flame or spontaneous combustion easy to cause fire. With the increase in the organic content of municipal waste and scattered from the open piles into centralized storage, and in the long-term storage of only a simple cover resulting in garbage methane gas hazards are becoming increasingly prominent, garbage explosions continue to occur, resulting in significant losses.
Sixth, the nest of harmful organisms. Garbage not only contains pathogenic microorganisms, but also for rats, birds and mosquitoes and flies to provide food, habitat and breeding places, but also the root cause of infectious diseases.
In summary, the seriousness and urgency of the problem of urban garbage is obvious. To make these garbage into treasure, we need to do a good job of recycling and utilization of garbage. Do you know? Recycling 1 ton of waste paper can produce 800 kilograms of good paper, you can cut 17 trees, can save more than half of the paper energy, reduce water pollution by 35%; 1 ton of waste plastic can be at least 600 kilograms of gasoline and diesel back to the refining; with the waste glass to reclaim glass, not only can save quartz sand, soda ash and other raw materials, but also electricity; smelting metal with waste metal can save a lot of energy consumption, but also to reduce air pollution; and Some of the peel, eggshells, leaves, leftovers and other kitchen waste, can be processed by composting and fermentation methods, into green fertilizer and so on.
Therefore, we need to vigorously publicize and educate the collection of garbage source classification through various mass media such as TV, radio, newspaper and information network; to formulate the laws and regulations on garbage collection and treatment of garbage classification suitable for the national conditions and strictly enforce them; to consider carrying out the pilot work of garbage collection of garbage source classification in some units in depth and in detail; and to discuss with all of you to further improve the management methods, so that the collection of garbage source classification can be carried out universally as soon as possible. source-segregated garbage collection as soon as possible to be carried out universally. Let's work together to promote the separation of garbage and recycling, remove garbage pollution, turn garbage into treasure, and conserve resources by raising our hands. So that Beijing can take a new look to win the 2008 Olympic Games hosting rights, but also to provide ourselves with a beautiful and healthy living space.
Plastic products as a lightweight, waterproof, corrosion-resistant new materials, in the world is widely used.
Plastic was first used in agricultural mulch, which brought great development to agricultural production, allowing crops to grow in any season and promoting market consumption. According to market statistics, since 1990 to 1995, the production of plastic to 8.9% annual growth rate, has swept the entire planet. It can be called the "white revolution". But it provides convenience for people at the same time, also brought a "white disaster".
To date, "white pollution" has become a well-known new term. It mainly refers to a variety of styrofoam bags, agricultural film, etc. to the environment caused by pollution, and get the general attention of the community.
Taiwan Province of China enacted a ban on "white products" in 1994, which was canceled a year later.
Hangzhou City issued a circular banning the local use of disposable styrofoam tableware as early as 1995.
Guangzhou City issued a government decree in June 1997 banning the production, sale and use of disposable non-biodegradable plastic lunch boxes in the city from September 1 of that year.
Based on this, in January 1999, the State Economic and Trade Commission issued Decree No. 6 of 1999, making it clear that disposable styrofoam tableware, as an outdated product, should be completely phased out by the end of 2000, and that from 2001 onwards, the production, sale and use of such products should be completely banned.
From the above material can be seen, today from the deadline has been more than a year past, but disposable foamed tableware is still everywhere, and the government also from the time of the mandatory "ban on white", the attitude of "ambiguous" up, often perfunctory, "ban on white". The "ban on white" has become a piece of paper.
In view of the above, we have conducted a multi-faceted research, access to a variety of information, and so far the country has developed and put on the market a variety of new substitutes for all aspects of the situation, and to analyze and summarize.
The difficult course