These last two years, the environmental impact of waste batteries becomes hot topic in one of the national media. Some have reported that the battery of environmental pollution is very serious, a battery can contaminate hundreds of thousands of cubic meters of water. Some even say that with the disposal of waste batteries can cause Minamata disease, such as Japan, as the danger of these reports have generated a great response, there is a lot of love for people and organizations to take measures to protect the environment or to participate in Laptop battery recycling business waste.
However, the State Administration of Environmental Protection say that does not focus on recycling of used batteries, used batteries damage the environment before the reports of the lack of scientific basis, to some extent led to deceive the masses. So, how to treat the batteries before science? This article aims to inform to the issue, to help you understand the more scientific treatment of waste batteries, better protection of our environment.
Rubbish inside the battery ultimately what contaminants
Environmental Science and Engineering, Tsinghua University, tutor of doctoral student Yong-Feng Nie, Professor, leading research group devoted to the risks and the elimination of waste batteries, research has been done. He said that in recent years, the batteries on the reports of harm to the environment, there are many, but unfortunately, these reports did not explain to readers or viewers to support his findings of the content research, there is no incentive for readers to submit their analysis process, there are no lists the actual pollution caused by the case of the dry Dell FK890 battery, only pollution “serious” conclusion.
Waste batteries containing hazardous substances, these substances through such a mechanism of release into the environment, would be the extent of damage to the environment, availability of internal and external batteries causing serious pollution cases, developed countries is how to solve this problem? with doubt, the research group conducted a survey on the depth and concluded with a number of far cry from news reports, these reports there is no practical and radical of the Office.
Professor Nie said the batteries can be divided into a (normal dry cells) of secondary batteries (rechargeable, mainly used in mobile phones, computers), lead acid batteries (mostly used in cars) three categories. Use the more the masses are more concerned by the reports of most ordinary batteries. Described below refer to a conventional hp 367759-001 battery and dry.
The batteries are made of iron, zinc, manganese, etc., plus traces of mercury, mercury are toxic. It was reported that in general, batteries containing mercury, cadmium, lead, arsenic and other substances, it is not true. In fact, the masses of ordinary dry batteries for daily use in the production process without added cadmium, lead, arsenic and other substances.
The piles of waste, mercury does not pose a threat to the environment
Low temperature volatilization of mercury is a highly toxic heavy metal. Many parts of the world also contain trace amounts of mercury in the mercury mining, refining, processing of mercury containing products, such as the measures are not confined sufficiently complete, the release of mercury into the atmosphere (steam) on the health of the operator a great influence.
May batteries contain mercury, but because it is additive, its concentration rarely. Even high-mercury batteries, mercury batteries are generally less than one thousandth of the mass. The Chinese sony VGP-BPS5 battery with the annual amount of mercury, usually in line with mercury, polyvinyl chloride, or alchemical mercury, lead and zinc mining and dressing or high emissions of mercury from companies wastewater in the year a considerable quantity of mercury. Since the battery consumption of the vast region the mercury batteries in the system of waste disposal, after the environmental impact of chemical emissions than its predecessor, the impact of mercury-containing wastewater is much smaller addition, the battery used in stainless steel or carbon steel because of the external foreskin, prevent leaks of mercury. Therefore discarded used batteries garbage scattered in life, the damage is minimal objectively impossible, as the Minamata disease caused the damage. Japan, Minamata disease is a chemical company for a few decades a large number of flows of rivers of mercury-containing wastewater, the gradual accumulation of mercury in the river downstream of the system caused.
Containing mercury, batteries are replaced by mercury-free BTP-43D1 battery
Of course, mercury, batteries, waste, after all, has a negative impact on the environment (even slightly). Thus, at the end of 1997, Economic and Trade Commission, China Light Industry Association and nine other ministries jointly issued a “restriction on the provisions of mercury batteries,” learn from the experience of developed countries require manufacturers of internal battery to gradually reduce the mercury content in batteries in 2002, domestic sales of batteries to achieve low-mercury, the mercury reached in 2006.
From practical point of view of progress, the domestic industry manufacturing the battery according to the basic “rule” requires the progressive reduction of mercury content in batteries. According to data from the China Battery Industry Association, the battery production in China to 180 dollars, exports about 10 billion euros, the annual domestic consumption of about 8 billion euros, standards Base hit a low of mercury (mercury content less than 0.025% by weight of batteries). Of these, approximately 2 billion of mercury-free standards (weight of mercury batteries less than 0.001%).
