Protecting the earth, starting from me, environmental problems are caused by unreasonable development and utilization of natural resources by human beings. Shocking environmental problems mainly include air pollution, water pollution, noise pollution, food pollution and improper development and utilization of natural resources. "Iron facts tell us that they are ruthlessly devouring human life like demons. Human health restricts the sustainable development of economy and society, which puts human beings in a dilemma. To this end, I made a declaration: "As long as we humans have the awareness of protecting the environment and governing the environment according to law, the earth will become a beautiful paradise. "The future must be a paradise full of trees and flowers, and human beings can enjoy the happiness endowed by nature.
Over the years. Our country has been seriously polluted by the environment. Repeated sandstorms in China will bury grasslands, destroy homes, seriously affect people's lives and make it difficult for us to survive. Green grass will become a desert, trees will lie on the ground forever, and we will not live happily: happiness will be gone, and even the earth on which we live will be shattered in the vast universe, just like glass falling to the ground. However, this is not just a disaster caused by sandstorms.
This is good:
Selected manuscripts of environmental protection knowledge broadcast: environmental pollution caused by waste batteries
A small button cell can pollute 600 cubic meters of water, which is equivalent to a person's lifetime drinking water; A dry battery can pollute 12 cubic meter of water and 1 cubic meter of soil, which will cause permanent public hazards.
Although the recycling of used batteries has been supported by people, the recycling situation of batteries is not optimistic. So far, there is not a professional enterprise in China that can handle waste batteries in batches, and the areas that collect waste batteries all over the country have encountered such embarrassing problems. The reason is that the low recovery rate directly limits the expansion of treatment scale and the improvement of treatment technology, which further seriously hinders the industrialization process of recycling waste dry batteries. According to expert analysis, the reasons are mainly in the following aspects: First, there are no detailed rules for battery recycling in relevant laws and regulations, and there are no rewards and punishments for recycling or not. Secondly, at present, the recycling network of used batteries is basically "woven" by organizations and individuals spontaneously. Without the general awareness of consciously collecting and handing in, it is still difficult for used batteries to enter the "big network". Thirdly, battery manufacturers, as production enterprises, provide hundreds of millions of batteries to the whole society every year, but few manufacturers really consciously participate in the recycling process. At present, in many places, recycled waste batteries can only be piled together. In the upsurge of recycling used batteries, calm people find that used batteries are still not recycled. I can't help asking, where is the difficulty in recycling used batteries?
Let's take a look at how these used batteries are handled abroad. Switzerland has two factories specializing in the treatment and utilization of used batteries. One factory uses the method of grinding waste batteries and heating them in the furnace. At this time, the volatile mercury can be extracted. At high temperature, zinc will evaporate, and manganese and iron will melt to form manganese-iron alloy needed for steelmaking. This factory can handle 2000 tons of waste batteries a year, and can obtain 780 tons of ferromanganese alloy, 400 tons of zinc and 3 tons of mercury. Another factory directly extracts iron from batteries and sells metal mixtures such as manganese oxide, zinc oxide, copper oxide and nickel oxide as metal scrap. A "wet treatment" device was built in the suburb of magdeburg. Nomura Seiko Co., Ltd. in the mountainous area of Hokkaido, Japan, mainly deals in waste batteries and waste fluorescent lamps.
From this point of view, it is urgent to deal with these waste batteries. As middle school students, we should really pay attention to and take practical actions to protect our beautiful earth.