At least 10% of farmland in China is contaminated by heavy metal battery industry
Source: Internet
Author: User
KeywordsHeavy metal pollution storage battery
March 24, Zhejiang Taizhou Battery Co., Ltd. Factory outside the plant piled up with waste rubbish. Recently, Taizhou Luqiao District Feng Jiang Street in Tao Village 139 villagers appeared by the battery pollution caused by the blood lead content of the children living in the garbage dump as a toy in the near future, Zhejiang province Taizhou Luqiao District Feng Jiang Street 139 villagers were detected blood lead severely exceeded, The culprit is a battery company in the village that is classified as a key monitoring enterprise. Heavy metal pollution has again become a focus of public opinion. 28th this month, the National Ministry of Environmental Protection and other 9 ministries and committees convened the 2011 National Environmental Transformation Action Conference, will be the focus of this year's special action "" sword refers to heavy metal pollution, which lead storage battery enterprises to become the first task of our Environmental protection action this year. According to the data published by the Ministry of Land and resources, environmental experts estimate that the country's annual food pollution by heavy metals is as high as 12 million tonnes, the equivalent of one year's total grain production in Guangdong, which can feed 40 million people in the Pearl River Delta. Heavy metal pollution at least 10% Chinese farmland Environmental Protection Minister Shengxian revealed that, according to the "Integrated control of heavy metal pollution" Twelve-Five "planning" requirements, by 2015, the key areas of lead, mercury, chromium, cadmium and metal-like arsenic emissions of heavy metals, than 2007 cut 15%, and requires all localities to start comprehensive prevention and control of heavy metal pollution "Twelve-Five" planning, play good prevention and control of heavy metal pollution of the protracted war and battle. Why is heavy metal pollution a top priority for environmental protection during the "Twelve-Five" period? The Ministry of Land and Resources in this blushes, the country only because of heavy metal pollution and reduce the production of more than 10 million tons of food, and also by heavy metal pollution of food as much as 12 million tons a year, the total economic loss of at least 20 billion yuan, enough to support more than more than 40 million people a year. Experts have found that 12 million tonnes of grain is almost the same as the total grain output of Guangdong Province in one year, and more than 40 million people are also the permanent residents of the entire Pearl River Delta. Chen Tongbin, director of the Center for Environmental Remediation Research at the Institute of Geography and Resources of the Chinese Academy of Sciences, said China's heavy metal pollution is sporadic in the north and denser in the south. He estimates that heavy metals are more likely to pollute 10% of arable land in China. Among them, the proportion of cadmium pollution and arsenic pollution is the largest, about 40% of the polluted farmland respectively. 40% of the heavy metal in agricultural land in the Pearl River delta the National Environmental Protection Department organized a typical area of soil environmental Quality Survey research, the Pearl River delta in some cities nearly 40% of the farmland vegetable soil pollution of heavy metals, of which 10% are severely exceeded. The main elements of heavy metal in the Pearl River Delta investigation area are: cadmium, mercury, arsenic, copper and nickel. Among them, the content of mercury in the soil increased markedly, and increased by 70%-150%. In some 50% survey areas, the level of lead in soil was obviously increased, and the increase was about 30%. Published in 2008, "Guangdong Province Marine Environmental Quality Bulletin" shows that the Pearl River, Shenzhen and other rivers carryHeavy metals and arsenic-like metals are more than 12,000 tonnes into the sea. Chinese Academy of Sciences, South China Botanical Garden Professor Li Zhian told Nanfang Daily reporter, in recent years, he participated in the Pearl River delta pollution of soil remediation work, irrigation water is affected by the surrounding enterprises, resulting in heavy metal pollution of farmland mainly. "The current heavy metal soil remediation technology is still immature, the fastest and two or three years to repair to the arable level, and repair does not mean that the heavy metal completely eliminated, but to reduce its concentration." If not repaired, heavy metals can be retained for decades, such as lead, which can remain on farmland for 100 of years. Yang Wenxia, a researcher at the Center for Nutrition and Food safety at CDC, points out that environmental pollution such as heavy metal pollution in the soil is widespread, affecting a wide range of people and endangering the population. She cited, for example, heavy metal cadmium poisoning can be shown after 20-30 years, organochlorine pesticides although has been banned for many years, but at present in some fetuses, infants can also be found in the body. Heavy metal pollution in the battery industry has caused the battery industry to become a target. According to the Ministry of the "Battery Industry comprehensive Pollution Prevention Program" shows that the battery industry heavy metal consumption, production, recovery, recycling and other links heavy metal pollution risk. The Mercury-containing button-type battery, mercury-containing zinc-manganese battery and cadmium-nickel battery are treated as ordinary rubbish, which has hidden danger of heavy metal pollution. Battery experts, Ministry of Education, Director of China Engineering Research Center Li Weishan introduced, at present, in people's contact with the battery, containing harmful heavy metals mainly automotive lead batteries and home cameras and other digital products used in the CD-ni battery, have been included in the list of hazardous waste control. "But the former has no substitute, domestic capacity is still very large, the latter has lithium-ion batteries can be replaced, but because of costs and other reasons, cadmium nickel batteries still have market demand." "With the domestic auto market" blowout "growth, the rapid development of automotive batteries, the Chinese Battery Industry Association statistics, China's battery production accounted for more than half of the world last year, lead-acid battery total output 144.167 million KVA, the year-on-year growth of 17.3%. Cadmium nickel batteries about 400 million. China Battery Industry Association released the Chinese Battery industry market research and analysis that the lead-acid battery belongs to the high pollution products, its flour milling and two of acid production links to the surrounding environment, serious pollution caused by lead poisoning or easily lead to the formation of acid rain. Li Weishan said that in addition to doing a good job of waste disposal, but also from the source to promote clean production and reduce pollution emissions "Guangdong is a large battery production province, especially to note, such as the recent Zhejiang Taizhou and Qingyuan in 2009, the blood lead incident, is the lesson." "Lead battery recovery less than 30% of the battery industry pollution is another reason is not high recovery." According to the Ministry of Industry estimates, 2009 battery enterprise emissions containing heavy metal waste water more than 12 million tons, of which the lead-acid battery enterprises discharge more than 10 million tons of waste water, more than 220,000 tons containing heavy metal solid waste, including more than 210,000 tons of lead solid waste, containing cadmium solid waste of about 4000 tons; organized back of waste lead batteriesThe yield is less than 30%. Academician Yang Yuseng of China Academy of Engineering, said, now lead-acid battery regeneration process commonly used dry regeneration technology, its disadvantage is that the recovery of lead is not high, energy consumption is not low, should be upgraded. In addition, the manual-type lead-acid battery regeneration "workshop" should be resolutely banned. In addition to lead-acid batteries, cadmium nickel batteries, the common use of dry batteries are also facing recovery problems. According to a sample survey, an average of 11 dry batteries are used per person a year, while 90% of the population now dispose of waste batteries randomly. In this respect, Professor Li Weishan expressed concern, the dry battery after treatment, has been basically eliminated toxic mercury-containing batteries, but the remaining heavy metals still exist, some are not easy to degrade. If discarded arbitrarily, in the local accumulation of too much, also can cause biological growth disorder, the environment has adverse effects. "There is a more mature practice abroad, which is to recycle discarded batteries by placing them in a convenience store, the public is like drinking a bottle of soda to return the bottle, and at intervals, the manufacturer or supplier will take the initiative to retrieve the treatment." "Guangdong Province Institute of Ecological Environment and soil research researcher Chen Nen recommended that this approach, so as to avoid some of the domestic facilities to recover a large number of discarded batteries, but no recycling enterprises or processing manufacturers connection, the result of the recovery point into a pollution point." Nanfang Daily Reporter Xiaiqingyu All parties respond to the garbage classification enterprises: Unable to recycle waste battery waste battery recovery is there really no way to go? Can waste sorting and recycling companies make a difference? South Daily reporter visits Guangzhou one of the few garbage classification enterprises, heard is a helpless voice. Yang Jingshan in Guangzhou wuyang New Town Run a garbage recycling enterprise, mainly to do garbage classification and then become renewable resources. Yang Jingshan revealed that the company has collected a large number of toxic and harmful waste, can only be stacked in the company's warehouses, nowhere to deal with, including a large number of waste batteries. I want to give it to the CWTC, but I have to pay for it. A set of garbage disposal equipment, to 10,000 yuan, the possibility of family popularization is lower. Yang Jingshan said that if the promotion, a community's equipment initially estimated at least 250,000 yuan, this money can not rely on the burden of enterprises. Yang Jingshan to reporters that the current industry development in the process of the difficulties encountered are mainly policy issues. It seems that in the process of garbage collection, the government is the rule of the game, but the government is involved in the distribution of benefits. The rules of the game to participate in the game, whether it is contrary to economic principles? "The government has the idea of classifying rubbish and shouting this slogan, but in fact, the government has not deliberately given US policy guidance or formulated concrete and feasible proposals to enable enterprises to have a way to go, and I think the government's guidance on this issue is not in place." "For the problem of waste classification and recycling enterprises, the Sustainable Development Community Association Low-carbon City project manager Pan Tao that in the garbage classification and recovery, the Government should guide rather than dominate, to rely on market-driven, the government should be equipped with the elements of marketization. Nanfang Daily reporter Huang intern Shao Province Environmental Protection Department: thorough investigationLead-acid Battery Enterprise Department of Environmental Protection recently said that will focus on the management of lead-acid batteries as the first priority of the Environmental protection campaign this year, the entire industry to complete the investigation, and in the media before July 30, published in the area of lead battery enterprises. Without environmental impact assessment or to achieve environmental impact assessment requirements, all stop the construction of environmental protection, labor protection "Three simultaneous" implementation is not in place, all stop production, the pollution-free treatment facilities, pollution control facilities abnormal operation or excessive discharge, are discontinued renovation , no hazardous waste treatment qualification engaged in waste lead storage battery recovery, all stop illegal business activities, to the law can not meet the requirements of health protection distance, will be discontinued rectification, the occurrence of major lead pollution incidents, will be held accountable. According to the objectives of the Guangdong Province heavy Metal pollution prevention and control plan, by 2015, the main heavy metal pollutant emissions in the key control areas of Guangdong province were reduced by 15%, the new increment of the main heavy metals in the non key control areas was zero, the environmental quality of the key control areas improved, and the heavy metal pollution Nanfang Daily correspondent Xiaiqingyu correspondent Chen Jiejun
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