Waste Battery Science and Technology Essay

Batteries are one of the most commonly used commodities in our daily life, cameras, tape recorders, MP3, CDs, DV, doorbells, remote controls, etc., are inseparable from the battery. China is the production and consumption of civilian dry batteries in large countries, the annual output of 15 billion, consumption reached 8 billion, mainly for zinc-manganese and alkaline zinc-manganese batteries, an average of each Chinese person a year to consume 5 batteries. Discarding batteries at will not only seriously pollutes the environment and jeopardizes human health, but also wastes the country's limited resources. To produce 10 billion batteries per year will consume 156,000 tons of zinc, 226,000 tons of manganese dioxide, 2080 tons of copper, 27,000 tons of zinc chloride, 79,000 tons of ammonium chloride, 43,000 tons of carbon rods; China's zinc ore resources are gradually depleted, the production capacity of the volume by volume decline, according to the current mining progress, expert estimates, can only be mined for 19 years! That is to say, after 20 years, our country will become zinc-free or zinc-poor countries. Conservation-oriented social construction, which requires us to pay attention to the waste battery resource utilization!

At present, the environmental problems and the sustainable development of the circular economy has become the focus of global attention, including waste batteries, including industrial waste of renewable resources has attracted the attention of the world's countries, renewable resources utilization industry has become the world's optimistic sunshine industry, has also become the countries concerned about the urgent issues.

For the recycling of waste batteries, Jilin Province took the lead in the country to introduce regulations to prohibit the arbitrary disposal of waste batteries. In this year's July 25th meeting of the Standing Committee of the Tenth National People's Congress of Jilin Province, Mr. Kou Chengfu, deputy director of the Jilin Provincial People's Congress of the Environment and Resources Committee, suggested that in the "Prevention and Control of Hazardous Waste Pollution in Jilin Province (Draft) Regulations" clearly stipulates that the prohibition of waste batteries are discarded at will. Not long ago, the European Commission also adopted a new directive on the development of waste battery recycling and reuse, which requires that all batteries sold in the EU must be recovered and recycled.

"In the world, there are only misplaced resources, but no waste that can not be utilized". Waste battery utilization is a worldwide subject, but so far there is no universally accepted and used, economical comprehensive utilization process. Some of the existing methods, more complex than the production of the battery itself, the cost of labor is also higher than the production of batteries, operators are not profit-driven, lack of enthusiasm. In particular, some processes in the solution of zinc, manganese recovery rate and outlet, the treatment of the remaining material is not enough research, economic uneconomical, technically limited to its popularization and application, comprehensive utilization can not be talked about. In this way, waste batteries are generally discarded as household garbage, when the battery shell rupture, mercury, zinc, manganese and other metals contaminated water, soil, also through the food chain into the ecological environment, resulting in regional serious ecological pollution.

Construction of a conservation-oriented society, we must rely on scientific and technological progress and technological innovation; waste dry cell batteries are also "misplaced resources", is entirely possible to turn waste into treasure. According to estimates: 1 ton of waste batteries can be recycled 131 kg of steel, 160 kg of zinc, 375 kg of manganese dioxide. The regeneration of these metals is much easier than the extraction of ore, while eliminating pollution of the environment. Therefore, the waste of dry batteries for resource utilization, is beneficial to the country and the people, a good thing.