You may be too nervous!

Button batteryThey are an indispensable part of modern life. From new energy electric vehicle batteries to button batteries on TV remote controls, they provide immeasurable convenience to our lives. They are the energy reserve power of various household and commercial appliances. Along with batteries With the wide application, how to handle and recycle batteries has become a topic of increasing concern. It is often seen on the Internet that batteries can pollute water for a person's life. Is battery pollution really so harmful? Let's start with the types and components of batteries.

There are many types of batteries with a wide range of uses. They can be divided into disposable batteries, rechargeable batteries, fuel cells and solar cells. Let's start with the most common batteries on the market: alkaline batteries, lithium batteries and lead-acid batteries.

Alkaline batteries are disposable batteries with manganese dioxide as the positive electrode and zinc, potassium hydroxide or sodium hydroxide electrolyte as the negative electrode. It is commonly used in watches, toys and other small appliances.

Lithium batteries are rechargeable batteries with lithium alloy as the positive electrode and graphite as the negative electrode. Due to its high discharge voltage, high energy density, and no memory effect, it is widely used in mobile phones, digital cameras, laptops, electric vehicles and other fields.

Lead-acid batteries are rechargeable batteries with lead oxide as the positive electrode and lead electrolyte and dilute sulfuric acid as the negative electrode. Its main feature is low cost but low energy density. It is usually used in electric vehicle batteries or car batteries.

These batteries are likely to be contaminated with heavy metals in soil and water, but to what extent are they contaminated? Should they be recycled centrally? Are there regulations in place in this country? To be sure, potential heavy metal contamination in batteries, such as mercury and lead, is likely Cause pollution. For a long time, battery recycling has been necessary in China and the world. The same is true in other parts of the world. But with the advancement of technology, the content of heavy metals in batteries has been significantly reduced, and there is no need for centralized recycling.

In the United States, since 1996, it has been stipulated that alkaline batteries are not allowed to contain lead, so they can be landfilled with ordinary domestic waste. my country's technical policy for the prevention and control of waste battery pollution is greater than the regulations. Since 2005, the mercury content of alkaline zinc-manganese batteries must be Less than 0.0001 percentage. After that, centralized collection of low-mercury or mercury-free batteries is discouraged. According to the national hazardous waste directory released in 2008, waste nickel-chromium batteries and mercury oxide batteries cannot be managed as hazardous waste. That is to say, most of them are Current regulations stipulate that commonly used batteries do not need to worry about mercury content contaminating water and soil, nor do they need to be recycled in a centralized manner.

However, due to their high lead content, lead-acid batteries are prone to lead pollution and are harmful to human health. However, due to the high cost of recycling lead-acid batteries, people are encouraged to recycle them through various formal and informal channels. For example, we heard that battery cars are often If it is stolen, the car owner must remove the battery after parking at night before taking it home, which also reflects the recycling of lead-acid batteries from the side.

Of course, recycling requirements vary from region to region and for different types of batteries. In California, the most stringent environmental protection zone in the United States, all used batteries are always classified as hazardous waste. Therefore, our advice is to work with local regulations, if any Regarding battery recycling regulations, or if you can see battery recycling areas around your living area, I hope you can cooperate. If there are no local regulations, you can safely use batteries as household waste. Don't worry about it contaminating your living area Used so much water.