Primary School Essay What are the Dangers of Used Batteries .

In the past two years, the impact of waste batteries on the environment has become one of the most hot topics in China. Some reports say that batteries are very polluting to the environment, and one battery can pollute hundreds of thousands of cubic meters of water. Some even say that waste batteries can cause harm such as Minamata disease in Japan along with the disposal of household garbage, and these reports have caused great repercussions in the society, and there are many people and groups who love environmental protection to carry out or participate in the activities of waste batteries.

Next, we will study the structure of non-rechargeable batteries, which are mainly divided into three levels: one is the outermost layer of "skin", which is also what we call the shell, and the other is for the reaction chemicals, which are encased by the shell, and the middle is the graphite electrode. When the chemical substances react, they are converted into electrical energy, which is output by the graphite electrode, and the circuit forms a circuit to form an electric current

The battery just works. Non-rechargeable batteries are divided into: nickel-metal hydride batteries, nickel-cadmium batteries.

The battery can no longer be powered and becomes a waste battery, and people usually just throw it away and buy a new one. Most people would say that this is quite normal. But they didn't expect that even with that gesture, they were also destroying their home, the earth.

One might ask, "What's so great about this little thing for the earth!" What else is there to say about sabotage?

Batteries don't look that destructive, but you can't look at all the surface. Waste batteries contain a large amount of heavy metals such as mercury, cadmium, manganese, lead, etc. When the surface cortex of the waste battery is corroded in the sun and rain, the components in it will penetrate into the soil and groundwater, once people eat the crops produced by the polluted land or drink the polluted water, these toxic heavy metals will enter the human body, slowly deposited down, causing a great threat to human health!

It has been measured that a No. 1 battery rotting in the soil can make one square meter of land lose its use value; A single button battery can contaminate 600,000 litres of water, which is equivalent to the amount of water a person drinks in a lifetime. Nearly 5 billion people in the world to count each person to lose a battery every month, a year to accumulate 60 billion batteries, the destructive power to the earth can be said to be great, the consequences of its harm to human health are even more unimaginable, according to statistics, only Beijing every year due to waste batteries and mercury into the natural environment has reached tons, this number can not help but headaches. Therefore, used batteries cannot be discarded at will.

Students, let our homes not be harmed by waste batteries!

With the continuous development of science and technology and the continuous improvement of people's living standards, the use of batteries has become an indispensable part of our daily life. However, it can be said that as much as the battery is produced, it will eventually be discarded; Centralized production, dispersed pollution. Nowadays, the harm of waste batteries has become an environmental concern for people all over the world.

Countries around the world are researching the best way to dispose of waste batteries. Although fruitful results have been achieved, the problem cannot be fundamentally solved. Therefore, finding the best solution to dispose of waste batteries has become the scientific research direction of many scientists in various countries.

Waste batteries may seem inconspicuous, but they can be very harmful. I have looked up a lot of information on the Internet and learned that the batteries that people use daily rely on chemical action, and generally speaking, they rely on corrosion to produce electricity.

The battery contains mercury, cadmium, aluminum and other metal substances, and mercury is highly toxic; Cadmium is responsible for kidney damage and bone diseases such as osteoporosis, hypochondria, and fractures. Lead can cause nervous disorders, nephritis, etc. A button battery can pollute 600,000 liters of water, and a No. 1 battery in the soil can make a square meter of land lose its use value, it can be seen that the harm of waste batteries is very great, so it is imperative to waste batteries.

But waste batteries are not just harmful to humans, they contain a lot of resources. For example, coin cell batteries contain rare metals such as lithium, manganese, and silver; Lead-acid batteries contain lead; Mobile phone batteries contain cadmium, which is highly valuable. Some factories have begun to carry out this work of extraction.

In addition, ordinary dry batteries also contain zinc, copper, manganese powder and other resources. With the improvement of life, the number of electrical appliances we use batteries has gradually increased, and the number of waste batteries has also increased a lot. In order to avoid this harm to human beings, when we throw away garbage, we should dispose of batteries separately from other garbage.

In this way, these waste batteries can extract resources without polluting the soil, and can also protect human health. Let's start from bit by bit, care for the environment, take care of ourselves, and participate in the use of waste batteries is the responsibility and obligation of each of us who cares. Shouldn't we do a better job in this action to protect our homeland, protect the living environment of human beings, and protect our own health?

Some people say that batteries cannot be littered and will seriously pollute the environment. But some people said, "Don't you all litter, and you don't see much harm!" So, is there any harm in waste batteries?

I believe that littering used batteries is not only harmful, but also very serious. According to relevant information, a No. 1 battery rots in the ground, which can make one square meter of soil permanently lose its use value; One coin cell battery can contaminate 600 tons of water, which is equivalent to the amount of drinking water in a person's lifetime! You see, how staggering these numbers are!

Moreover, among the substances that pose the greatest threat to the natural environment, batteries contain a variety of heavy metals such as mercury, lead, and cadmium. If waste batteries are mixed into domestic garbage and landfilled, or discarded, mercury and other heavy metals leaching from waste batteries will seep into the soil, pollute groundwater, and then enter fish and crops, destroy the living environment of human beings, and indirectly threaten human health.

It can be seen that the harm of waste batteries is very serious, in order to protect the environment we rely on, please do not litter waste batteries in the future.

Many people have different opinions on this issue, and I have one opinion as well. My opinion is that batteries should not be discarded indiscriminately, because waste batteries are small but very harmful. As we all know, waste batteries mainly contain heavy metals such as cadmium, lead, mercury, nickel, zinc, manganese, etc., among which cadmium, lead, and mercury are substances that are more harmful to the human body.

Waste batteries are a big killer that endangers our living environment! A small button battery can pollute 600 cubic meters of water, which is equivalent to the amount of water a person drinks in a lifetime; A No. 1 battery rotting in the ground can make one square meter of land lose its use value and cause permanent pollution. In nature, mercury in discarded batteries can slowly spill out of batteries, enter soil or water sources, and then enter the human body through crops, damaging human kidneys.

Under the action of microorganisms, inorganic mercury can be converted into methylmercury, which gathers in the body of fish, and after people eat this fish, methylmercury will enter human brain cells, causing serious damage to the human nervous system, and the serious ones will go crazy and die. Start from me, start from every little thing around you, and protect the ecological environment. It is the responsibility and obligation of each of us to care for the surrounding environment and participate in the classification and utilization of waste batteries.

To protect our planet, to protect our nature is to protect ourselves!

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According to the data, a No. 1 battery rots in the ground, which can make 1 square meter of soil permanently lose its use value; One coin cell battery can contaminate 600 tons of water, which is equivalent to the amount of water a person drinks in a lifetime. In the most threatening to the natural environment of several substances, batteries contain mercury, lead, cadmium and other kinds, if the waste battery is mixed with domestic garbage landfill, or discarded, the leached mercury and heavy metal substances will penetrate into the soil, pollute groundwater, and then enter the fish, crops, damage the living environment of human beings, and indirectly threaten human health.

Once the human body absorbs these heavy metals, what diseases will occur? According to relevant experts, mercury is a very toxic heavy metal, which has a great destructive power on the central nervous system of the human body, and the Minamata disease that occurred in Japan in the 50s of the last century was caused by mercury pollution. At present, the mercury content of mercury-containing alkaline dry batteries produced in China is 1 5, and the mercury content of neutral dry batteries is 0 025, and the mercury consumption of battery production in China is as much as dozens of tons every year.

Cadmium is very easy to cause chronic poisoning in the human body, and the main diseases are emphysema, osteomalacia, anemia, and it is likely to paralyze the human body. Lead is the most difficult to excrete after entering the human body, and it interferes with kidney function and reproductive function.

Experts believe that due to the characteristics of battery pollution with long cycle and large concealment, its potential harm is quite serious, and improper treatment will also cause secondary pollution. According to Dr. Yang Yifu, some farmers in a coastal province in China poured out the waste liquid containing lead and sulfuric acid because of improper treatment of the lead in the lead-acid battery, which not only caused lead poisoning, but also made local crops unable to grow.

However, now many companies produce nickel-metal hydride batteries, polymer lithium batteries, etc., which are more environmentally friendly, such as cel brand batteries produced by Xaar battery, such as nickel-metal hydride batteries, polymer batteries, lithium phosphate batteries, etc., which are environmentally friendly and do not contain toxic heavy metals such as cadmium, mercury, and lead. And it has a long service life.

Some people say that the battery should not be messed with, it will seriously pollute the environment. So-and-so classmate ignored it and said; "Aren't you all throwing around? I didn't see much harm! ”

According to relevant information, batteries contain a large number of heavy metals, such as zinc, lead, cadmium, mercury, manganese, etc. According to expert tests, a single button battery can pollute 600 cubic meters of water.

A No. 1 battery rots in the ground, which can make one square meter of land lose its use value. Look at it, the harm of messing with a battery is so great! If the waste battery is mixed with domestic garbage, after the battery decays, the dissolution of heavy metals such as mercury, cadmium, lead, nickel and so on will pollute the groundwater and soil, and then penetrate into the fish and crops, destroying the living environment of human beings and threatening human health.

If people are poisoned by mercury, they will suffer from central nervous system diseases, and the mortality rate is as high as 40%; Cadmium in used batteries is classified as a carcinogen. This is not alarmist!