In real life, the pollution of waste batteries has become a serious problem, but it has not been taken seriously. At present, there are no laws, policies and regulations related to the recycling of used batteries, no specialized enterprises or departments to deal with used batteries, no scientific guidance from society, no public awareness, and no corresponding good treatment behavior. Therefore, the pollution of waste batteries is still a considerable problem, and the pollution it brings still exists seriously. The biggest difficulty in dealing with waste batteries is the technical and economic difficulties caused by the current level of understanding, which is related to understanding in the final analysis. Because the direction of technological innovation is determined to be "creation" rather than "utilization", the calculation of economic cost is also limited to the traditional economic framework, without considering environmental pollution and resource costs. However, the survival of human beings and the sustainable development of society can not be separated from the environmental space of the earth, and we have to rely mainly on the resources of the earth, so we must face this problem.

There must be strict procedures for recycling used batteries: (1) put a special recycling bucket for used batteries; (2) Regular door-to-door collection; (3) battery classification; (4) Warehouse classification and safe storage; (5) concentrating to a certain amount, and then transporting to a special treatment plant; (6) Treatment and utilization of rare heavy metals. Recycling is the first step in this project. Without recycling, there is no treatment. Recycling is the key. A good beginning is half the battle.

harm

A grain of button cell can pollute 600,000 liters of water, which is equivalent to a person's lifetime drinking water. A piece of rotten battery in the field can make one square meter of land lose its use value, so it is no exaggeration to say that waste batteries are "small pollution bombs"

Dry batteries commonly used in our daily life mainly include acidic zinc-manganese batteries and alkaline zinc-manganese batteries, both of which contain various metal substances such as mercury, manganese, cadmium, lead and zinc. After the discarded battery is abandoned, the shell of the battery will slowly corrode, and the heavy metal substances in it will gradually penetrate into the water and soil, causing pollution. The biggest feature of heavy metal pollution is that it cannot be degraded in nature and can only be eliminated by purification.

The harm of waste batteries mainly focuses on a small amount of heavy metals contained in them.

Manifestation of the harm of metal types

manganese

Excessive accumulation of manganese in the body causes neurological dysfunction, which manifests as comprehensive dysfunction in the early stage. The heavier ones have heavy legs, monotonous language, dull expression and indifference, often accompanied by mental symptoms.

zinc (Zn)

Zinc salt can precipitate protein and stimulate the membrane mucosa. When the concentration in water exceeds 10-50 ms/L, it is carcinogenic and may cause chemical pneumonia. Lead: Lead mainly acts on nervous system, blood circulation system, digestive system, liver, kidney and other organs, which can inhibit the anabolic process of hemoglobin, and can also directly act on mature red blood cells, which has a great impact on infants and young children, leading to physical retardation of children, and chronic lead poisoning can lead to mental retardation of children.

nickel

Nickel powder is soluble in blood, participates in internal circulation, and has strong toxicity, which can damage the central nervous system, cause vascular variation, and even lead to cancer in severe cases.

Mercury

Among these heavy metal pollutants, it is the most worth mentioning. This heavy metal is really harmful to human beings. For a long time, when producing dry batteries in China, a toxic substance-mercury or mercury compounds has to be added. In China, the mercury content of alkaline dry batteries reaches 1-5%, and that of neutral dry batteries is 0.025%. Mercury used in the production of dry batteries in China has obvious neurotoxicity every year. In addition, it also has adverse effects on endocrine system and immune system. 1953, the Minamata disease that shocked the world occurred in Kyushu Island, Japan, which sounded the alarm of mercury pollution to mankind.

Heavy metal pollution threatens human health. If people ignore the treatment of heavy metal pollution, they will eventually swallow the bitter fruit of self-brewing. Therefore, it is more and more important to strengthen the recycling of used batteries.