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Although there are many difficulties, from another point of view, the disposal of used batteries is still necessary. One is to avoid environmental pollution, and the other is that the utilization value of waste batteries is quite high. According to statistics, China consumes 120,000 tons of zinc, 200,000 tons of manganese dioxide, 20,000 tons of copper, and quite a lot of zinc chloride, graphite, asphalt, stainless steel and other substances for the production of dry batteries every year.
If these metal materials can be decomposed and refined from the disposal of waste batteries, it will be a great saving on energy.
Waste batteries contain a large number of renewable heavy metals and acids, such as lead-acid batteries, the first utilization of lead-acid batteries is mainly based on waste lead recycling, including the use of waste acid and plastic shells. At present, the metal utilization rate of lead-acid batteries for domestic waste cars has reached about 80 85%.
According to industry estimates, according to the calculation of processing 100,000 waste batteries per day, after removing various expenses, it can make a profit of about 20,000 yuan; With 7 billion batteries and a utilization rate of 50%, the annual profit can reach more than 600 million yuan. It can be seen that the implementation of large-scale operation in this field can create benefits.
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1。The main component of waste batteries is zinc, and although zinc is not very good, it is widely used. Therefore, a large number of waste batteries are necessary, which is good for your own wallet and society.
2。To realize its value, you just need to send them to the ** station.
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Volatile mercury, iron, zinc can be extracted.
When the old battery is ground and heated in a furnace, the volatile mercury is extracted, and at higher temperatures, zinc also evaporates, which is also a precious metal. Iron and manganese are fused to form an iron-manganese alloy for steelmaking. 2,000 tons of waste batteries can be processed in one year, and 780 tons of manganese ferroalloy, 400 tons of zinc alloy and 3 tons of mercury slag can be obtained.
The plant extracts iron directly from the battery and uses a mixture of metals such as manganese oxide, zinc oxide, copper oxide and nickel oxide as metal scrap directly. However, the heat treatment method is more expensive, and a small amount of waste battery processing fee is charged to each battery purchaser.
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Dear, I am glad to answer for you: Overview of the achievements of waste batteries, the use of waste batteries, the current situation of domestic use of batteries The most used industrial batteries in China are lead-acid batteries, which account for more than 50 of the total cost of batteries, mainly using pyrometallurgical and hydrometallurgical processes and solid-phase electrolytic reduction technology. The shell is plastic, which can be recycled, and basically no secondary pollution.
Nickel-cadmium, nickel-metal hydride and lithium-ion batteries are used more in small secondary batteries, cadmium in nickel-cadmium batteries is one of the heavy metal elements strictly controlled by environmental protection, organic electrolytes in lithium-ion batteries, nickel-cadmium, alkali in nickel-metal hydride batteries and heavy metals such as copper and copper as auxiliary materials for manufacturing batteries, all constitute pollution to the environment. At present, the total use of small secondary batteries in China is only a few hundred million, and most of them are small, the utilization value of waste batteries is low, and the use is scattered, most of them are used for domestic waste disposal, and there are cost and management problems in its first place, and there are certain technical problems in recycling. Civil dry batteries are currently the largest and most dispersed battery products, with an annual domestic consumption of 8 billion.
There are mainly two lead deficiency series of zinc-manganese and alkaline zinc-manganese, as well as a small amount of zinc-silver, lithium batteries and other varieties. Zinc-manganese batteries, alkaline zinc-manganese batteries, and zinc-silver batteries generally use mercury or mercury compounds as corrosion inhibitors, and mercury and mercury compounds are highly toxic substances. When waste batteries are incinerated as domestic waste, some of the heavy metals such as HG, CD, PB, and ZN in the waste batteries are discharged into the atmosphere at high temperatures, and some of them become ash and slag, resulting in secondary pollution.
There are roughly three ways to dispose of waste batteries in the world: solidification and deep burial, storage in waste mines, and utilization. 1 Solidified and buried deep in abandoned mines For example, a factory in France extracts nickel and cadmium from them, which are then used in steelmaking, and cadmium is reused to produce batteries.
The rest of the waste batteries are generally sent to special toxic and hazardous landfills, but this is not only too expensive but also wasteful, because there are still many useful substances that can be used as raw materials. 2 **Utilization (1) Heat treatment There are two factories in Switzerland that specialize in the processing and utilization of old batteries, and the method taken by the Butlec company is to grind the old batteries and send them to the furnace for heating, at which time the volatilized mercury can be extracted, and when the temperature is higher, zinc also evaporates, which is also a precious metal. Iron and manganese are fused to form an iron-manganese alloy for steelmaking.
The plant can process 2,000 tonnes of waste batteries a year, producing 780 tonnes of ferromanganese alloys, 400 tonnes of zinc alloys and 3 tonnes of mercury. Another plant extracts iron directly from batteries and uses metal mixtures such as manganese oxide, zinc oxide, copper oxide and nickel oxide as metal waste excitation materials**. However, heat treatment methods are more expensive, and Switzerland also requires a small fee for each battery buyer to process used batteries.
2) "Wet treatment" A "wet treatment" plant is being built in the suburbs of Magdeburg, where all types of batteries, except for lead-acid batteries, are dissolved in sulphuric acid, and then various metals are extracted from the solution with the help of ionic resins, and the raw materials obtained in this way are purer than the heat treatment method and therefore in the market.
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Hazards of waste batteries: Mercury in batteries discarded in nature will slowly spill out of batteries, enter the soil or water source, 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.
The famous Japanese Minamata disease is caused by methylmercury. Cadmium exudates and pollutes land and water, and eventually enters the human body to damage the liver and kidneys, and can also cause bone weakness, and in severe cases, bone deformation. The leakage of acid and heavy metal lead contained in automobile waste batteries into nature can cause soil and water pollution, and ultimately cause harm to people.
**Waste batteries: The popularity and variety of household appliances have led to a dramatic increase in the use of batteries. Waste batteries are mixed in garbage, which not only pollutes the environment, but is also a waste.
The annual consumption of batteries in the country is 3 billion, and 740 tons of copper, 10,000 tons of zinc and 10,000 tons of manganese powder are lost due to the lack of **. We should separate the used batteries from other garbage and send them to **. Many countries attach great importance to the use of used batteries.
Many stores in Germany require customers to return the used batteries to the store when they buy them; Japan's proprietary sorting bins collect different waste batteries.
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I'm so lucky.,I'm also a young adult.。。。
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Don't leave waste batteries homeless.
With the continuous improvement of living conditions, the use of batteries in our lives is increasing rapidly, and batteries have penetrated into every corner of our life and work. Move**, camera, calculator, ......can't do without it. At present, the national consumption of batteries is about 7 billion.
If these batteries are not properly disposed of, they can directly or indirectly endanger people's health.
If you don't believe me, listen to my introduction.
According to the measurement, the harmful substances produced by a button battery can pollute 600,000 liters of water, which is the water consumption of a person's lifetime; A No. 1 battery rotting in the ground can make one square meter of valuable land lose its use value. If the battery and garbage are landfilled together and rotten, the leaching heavy metal substances will seep into the soil, contaminate the groundwater, and enter the aquatic organisms and crop branches and fruits. When people eat polluted aquatic organisms and crops, heavy metals enter the human body and cause harm, some leading to cancer, some leading to anemia, and some leading to kidney damage.
Batteries contain heavy metals such as mercury, cadmium, lead, etc. Mercury is highly toxic; Cadmium mainly causes kidney damage, osteoporosis, fractures, etc.; Lead can cause nervous disorders, nephritis, etc.
Isn't there a way to protect the environment and get people to use batteries? Of course!
We can organize an "environmental protection team" where each person takes a plastic belt and picks up waste batteries. If we see who threw it, we have to tell him about the dangers of littering waste batteries. Then pick up the waste battery to the relevant departments, first disinfect the heavy metal substances in the battery, combine the remaining electricity in several waste batteries into a new battery, it becomes an "environmental protection battery", the more waste batteries are picked up, the more environmentally friendly batteries will be, so that you can protect the environment, and you can use batteries, it is really a good idea to protect the environment and let everyone use the battery.
A waste battery is a hidden "bomb", just as a small poem wrote: although the battery is small, it can be harmful.
If people don't litter, the world will be a better place.
Yes, the road to the future is at the foot, the future is to rely on everyone to create together, for our tomorrow will be better, everyone join the team of "protecting the environment", don't litter waste batteries.
1. Heat treatment method: the old battery is ground and sent to the furnace for heating, which can extract the mercury emitted by the volatile circle, and the zinc also evaporates when the temperature is higher, and mercury and zinc are precious metals. Iron and manganese are fused to become manganese ferroalloys required for steelmaking. >>>More
Exploit. 1) It is forbidden to dismantle and crush waste batteries manually and in the open air. >>>More
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Batteries contain a lot of heavy metals, which will pollute the environment, and should be collected and destroyed uniformly.
Nowadays, people are inseparable from batteries almost every day in their social life. According to China's annual consumption of 7 billion 8 billion batteries, per capita consumes 5 to 6 batteries a year. The most commonly used batteries are pagers, cell phones, pocket radios, walkmans, remote controls, etc. >>>More