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How much harm does the waste battery cause to the environment?
The battery product is divided into three dry batteries (ordinary dry battery, which is also the largest battery), secondary dry battery (rechargeable battery, mainly used for mobile phones, computers, and a small amount), and lead-acid batteries (mainly used for automobiles). . The largest amount, the most concerned and most reported by the masses is a dry battery. The main components of this battery are iron, zinc, manganese, etc., and also contain trace amounts of mercury. Mercury in batteries is an additive, and even high-mercury batteries have a mercury content of only one-thousandth of the total. The domestic battery industry uses only a dozen tons of mercury throughout the year, which is roughly equivalent to the mercury content of an annual wastewater discharged from a mercury-method, mercury-alloy or high-mercury lead-zinc mine. Since the consumption area of the battery is large, the mercury-containing waste battery enters the domestic garbage disposal system, and the impact on the environment is much smaller than that caused by the discharge of mercury-containing wastewater by a chemical company. Objectively, it is impossible to cause damage such as leeches (sound "entertainment"). The cause of Japanese leeches is that chemical companies have discharged a large amount of mercury-containing wastewater into a river for decades, causing the mercury content in downstream water systems to exceed the standard. Caused. At present, there are no reports or scientific research materials that cause serious pollution from waste batteries at home and abroad. A 15-year study by Fukuoka University in Japan showed that mercury-containing batteries can be landfilled with domestic waste. Some reports say that batteries contain mercury, cadmium, lead, zinc and other substances. This is inaccurate. In fact, ordinary ordinary dry batteries used by the masses do not need to add cadmium, lead, zinc and other substances in the production process.