However, the State Environmental Protection Administration, the people concerned believe that the batteries do not focus on recycling, waste batteries previous reports against the environment lack of scientific basis, to some extent caused by misleading the masses. So, how to deal with waste battery of science does it? This article for this issue to be brief, with a view to help people understand more scientific treatment of waste batteries,Dell KX117 better protection of our environment.
Used batteries in the end what pollutants inside
Environmental Science and Engineering Department of Tsinghua University's doctoral tutor Professor Nie Yongfeng, leading group of specialized batteries for the harm done and processing research. He said that in recent years on the used batteries to the environment is indeed a lot of reports of harm, but Unfortunately, these reports did not indicate to readers or viewers to support their conclusions of scientific research content, not to readers on its analysis of the reasoning process, nor listed due to pollution caused by dry-cell batteries actual cases, only "serious pollution" conclusion.
Used batteries which contain harmful substances, these substances through what kind of mechanism of release into the environment, on the environment caused by the extent of the damage, whether at home and abroad waste battery causing serious pollution cases, the developed countries is how to solve this problem? With doubt,IBM 92P1087 the team made a comprehensive and in-depth investigation and concluded with a far cry from some news reports, these reports there are not realistic and extreme place.
Professor Nie said, battery products can be divided into a dry-cell batteries (ordinary dry-cell batteries), secondary batteries (rechargeable batteries, mainly used in mobile phones, computers), lead-acid batteries (mainly used in cars) three categories. The largest amount of the masses are most concerned about, reported the largest number of ordinary dry-cell batteries. Described below refer to ordinary dry-cell batteries battery.
Battery main iron, zinc, manganese, etc., in addition to contain traces of mercury and mercury are poisonous. It is reported that in general terms, batteries containing mercury, cadmium, lead, arsenic and other substances,Lenovo L08O6D13 it is not accurate. In fact, the masses of ordinary dry-cell batteries for daily use in the production process need not add cadmium, lead, arsenic and other substances.
Of mercury in batteries did not pose a threat to the environment.
Low-temperature volatilization of mercury is a toxic heavy metals larger. In many parts of the soil also contain traces of mercury, the mercury mining, refining, processing of mercury-containing products, such as confined measures are not sufficiently complete, the release of mercury into the air (steam) on the operation of the health impact.
Although batteries containing mercury, but because it is additive, and its content rarely. Even the high-mercury batteries, mercury content in general are less than one-thousandth the weight of batteries. China's battery industry's use of mercury throughout the year, broadly in line with a PVC mercury or mercury law gold, lead, zinc and mercury or high矿采选enterprises in waste water discharges from a considerable amount of mercury. As the battery consumption of the region, and mercury-containing waste battery life into the garbage disposal system, the environmental impact of a chemical enterprise than the aforementioned mercury emissions caused by the impact of waste water is much smaller Moreover,FRU 42T4682the battery used in stainless steel or carbon steel to do outside the foreskin effectively prevent the leakage of mercury. Therefore discarded batteries scattered in the garbage, its minimal harm, objectively impossible Minamata disease caused by such hazards. Japan's Minamata Disease is a chemical enterprise for several decades a river to produce vast quantities of mercury waste water, the lower reaches of the gradual accumulation of mercury in water caused.
Mercury-containing batteries are being mercury-free batteries to replace
Of course, the mercury-containing batteries, after all, have a negative impact on the environment (even if it is minor). As a result, by the end of 1997, the State Economic and Trade Commission, China Light Industry Association and other departments have jointly issued 9 "on the restriction of the provisions of mercury in batteries," drawing on the experience of developed countries, the requirements of domestic battery manufacturers to gradually reduce the mercury content in batteries in 2002, domestic Sales of batteries to achieve low-mercury levels in 2006 reached the level of mercury-free.
From a practical point of view of progress, in accordance with domestic battery manufacturing basic "requirement" in the gradual reduction of mercury in batteries. According to the China Battery Industry Association data, my batteries for the 18 billion annual exports of about 10 billion, the domestic annual consumption of about eight billion, the basic standards has reached a low of mercury (mercury content in battery weight of less than 0.025%) . Of these, about two billion to meet the standards for mercury-free (mercury content in battery weight of less than 0.001 percent).
Professor Nie stressed that so far no batteries at home and abroad caused serious pollutionA42-A3 reports or research information on the used batteries to pollute the environment argument is the lack of scientific basis, resulted in misleading the masses.
Focus on recycling of waste batteries improper handling can cause pollution
If by some reports as called for in our country to build a professional and able to handle bulk waste battery factory, is it practicable? State Environmental Protection Administration, Division of Solid污控Department彭德富engineers said that the construction of a废电池回收treatment plant, need to invest more than 1000 million yuan, but also at least a year more than 4000 tons of used battery recycling, factories can operate together. In fact to such a large number of recycling of waste batteries is extremely difficult. To the capital city of Beijing as an example, in the vigorous publicity and encouragement, 3 years before they recovered more than 200 tons. In environmental protection model city of Hangzhou battery waste recovery rate of only 10%. It is learned that Switzerland and Japan have been built using two Machinable factories used batteries, but now they are often a result of food production status. This can not but let us give serious consideration to investing in building a recycling plant.
彭德富 also said that to deal with these centralized storage batteries Another approach is in accordance with the handling of hazardous waste landfill or storage focus, but this needs to deal with a ton of 三四千million cost, but also faces the problem of unfunded costs . It is understood that the Sichuan province there is a small business under the banner of "green" label, the use of primary and secondary school students in Saturdays and Sundays to help them to collect scrap batteries open with a hammer, recycling them valuable scrap metal to sell when the battery casing, and not to discard the residue. A32-U5 Batteries will not pose a threat to the environment, it is important that the battery pack of stainless steel or carbon steel outside the foreskin, to effectively prevent the leakage of mercury. Batteries outside the stainless steel or carbon steel broke down outside of the foreskin, which contains mercury highly exudative, the results of batteries of harmful substances contaminating the environment, and harmed the health of primary and secondary school students. This is absolutely impermissible and must be strictly prohibited.
