Composition topics related to turning waste into treasure

In this world, almost everyone hates garbage, and even the thought of garbage makes them sick. As soon as they see garbage, they will stay away from it ... It is true that garbage will pollute the environment if it is not handled properly, but as we all know, as long as we make rational use of garbage, it will not only produce pollution, but also be a renewable resource.

Nowadays, people advocate saving, and the slogan of saving water and oil can be seen everywhere, but do you know? No matter how much we save, those non-renewable resources will be exhausted one day. Therefore, if we want to have resources for our use forever, we can only replace them by developing another renewable resource. However, garbage is such a valuable renewable resource, but it has not attracted people's attention.

For example, Harbin produces 3000 tons of domestic garbage every day. How to use such rich resources? In the past, domestic municipal solid waste was usually burned or buried centrally. The more garbage is burned, the more toxic gases are released, and harmful slag and dust are produced, which poses a great threat to our health. The cost of landfill treatment is low, but the landfill occupies a large space. If the anti-seepage work is not in place, the leachate will easily pollute the groundwater quality. Today, even in cities with good garbage disposal, such as Beijing and Shanghai, less than 5% of the garbage is recycled. Why can't such a large amount of "resources" be recycled? Many people say that the income from recycling garbage is not as high as the cost of treatment. However, for the increasingly serious environmental problems, should it be an economic account or an environmental account? Let's calculate how much waste of resources garbage will cause if it is not classified.

Garbage recycling is a worldwide problem, and even developed countries can't achieve 100% recycling. According to the statistics of relevant departments, there are about 3 million tons of scrap steel and 6 million tons of waste paper in China every year. We often throw away more than 6 billion waste dry batteries, including 70,000 tons of zinc and 65,438+10,000 tons of manganese dioxide. If these resources can be reused, what great social wealth they will become!

Let's take a look at how Canadians carry out waste recycling projects: Canadians have a strong concept of waste utilization. When they throw garbage, they will definitely bag it. Recyclable garbage and non-recyclable garbage have their own bins. Moreover, in Canada, many people take cloth bags with them when they go shopping in supermarkets, instead of free plastic bags in supermarkets.

After investigation, we found that many people are afraid of trouble and have insufficient awareness of environmental protection. Another important reason is that there are few trash cans in streets and communities, which makes it difficult for people to form a good habit of garbage sorting. But it doesn't mean that garbage in China is not recycled. In foreign countries, cans, mineral water bottles and old books are rubbish, but in China, there are few such things in garbage dumps. Why? This kind of waste rarely leaves the house and is usually sold directly by the owner. Even if it was thrown into the dustbin, it was picked up by scavengers. After layers of "screening", compared with foreign garbage, there are not many things that can be directly converted into economic benefits in China garbage dump.

If you really want to recycle garbage, you can't do it at once. First of all, we must solve the problem from the root. We can mobilize the local government to provide two garbage bins for each community to hold recyclable and non-recyclable garbage respectively. At the same time, we should cultivate people's concept of waste utilization so that people can actively cooperate. At the beginning, rewards and punishments can be implemented to improve people's consciousness. We transport the unrecoverable garbage to a centralized place for destruction, while the recyclable garbage is collected after being boxed, and the stains and stench on it are removed by purification, and then the garbage is classified by robots, which are divided into paper, plastic, glass and liquid according to the different raw materials they produce. Finally, we transport all kinds of recyclable resources to various factories for centralized treatment, break paper and plastic, melt glass into glass solution, and then make paper, plastic and glass products, which can not only reduce the development of non-renewable resources, but also turn garbage and waste into renewable resources through recycling.

Garbage recycling can not only prevent garbage from becoming the source of secondary pollution, put an end to the huge waste of resources, but also provide inexhaustible resources for human beings. It would be a pity if it is not developed and utilized in time!