The battery is widely used as a convenient DC power supply for power plants, industrial and mining enterprises, and various types of motor vehicles. Since the risk characteristics such as lead poisoning, flammable, explosive explosion are involved in the assembly process of lead-acid batteries, so that the safety production of lead-acid batteries is important. At present, the lead-acid battery has been included in the "Dangerous Chemical Product Directory". my country has always attached importance to the safety production of lead-acid batteries, strengthened the safety precautions for battery production assembly, and formulated the "Lead Work Safety Safety Regulations". .Waste battery pollution and its treatment have become one of the most concerned environmental focus of society. According to relevant personnel of the Science and Technology Standards of the State Environmental Protection Administration, as the species, production and use of my country's battery, the amount and type of waste batteries are increasing. Waste batteries contain electrolyte solutions such as mercury, lead, cadmium, nickel, etc., and have different degrees of harm to the human body and ecological environment. It is understood that the waste cells whose human health and ecological environment are harmful, and the waste cells included in the control of hazardous waste control are mainly: mercury-containing batteries, mainly to monitocadic batteries; lead-acid batteries; containing cadmium-containing batteries, mainly nickel-cadmium batteries. The relevant information shows that the one-size battery is rotten in the ground, which can make the 1 square meter soil permanently use value; a plate battery can cause 600 tons of water to be contaminated, equivalent to a person's drinking water. In several substances whose natural environment is threatened, there is a variety of mercury, lead, cadmium, etc. Infiltrating the soil, pollutes groundwater, and then enter fish, crops, destroy human living environment, indirectly threaten human health.
Once the human body absorbs these heavy metals, what disease will occur? According to relevant experts, mercury is a strong heavy metal with a toxicity, which is very destructive to the human central nervous. At present, my country's mercury-containing alkaline dry batteries produced by 1% to 5%, and the amahydrogen content of neutral dry batteries is 0.025%. The mercury consumed by my country's battery production is more than tens of tons per year. Cadmium is extremely easy to cause chronic poisoning in the human body. The main condition is emphysema, bone softening, anemia, is likely to make human body. It is the most difficult to excrete after lead into the human body, it interferes with renal function.
Experts believe that due to the length of battery pollution has a long period of cycle, the potential harm is quite serious, and improper treatment will cause secondary pollution. According to Dr. Yang Yifu, some farmers in the coastal province in my country are recyclable in the lead-acid battery, because improper recovery is improper, the waste liquid containing lead and sulfuric acid is poured off, which not only causes lead poisoning, but also can't grow local crops. . How to recycle and handle waste batteries in a timely manner, which is increasingly highlighted.
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