<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区

          Economy

          Green standards issued for rare earths

          By Li Jing and Zhang Qi (China Daily)
          Updated: 2011-03-01 09:05
          Large Medium Small

          BEIJING - Environmental standards governing the production of rare earths, specifically concerning pollutants, were issued on Monday to ensure the sector's sustainable development.

          The standards, which come into force on Oct 1, set strict emission limits possibly affecting at least 60 percent of companies in the industry and could lead to consolidation in the sector, industry sources said.

          Rare earths, composed of 17 elements, are used in a number of high-tech industries ranging from wind turbines and hybrid cars to missiles. China produces 97 percent of the global supply of the minerals, with reserves accounting for only 36 percent of the world's total.

          An executive from Ganzhou Rare Earth Mineral Industry Co Ltd, who declined to be named, said at least 60 percent of producers would have difficulty meeting the standards, which means they will face increasing production costs trying to implement them.

          "This will increase the export price of rare earths," he said.

          Under the standards, enterprises will have to increase investment in pollution treatment facilities. This investment will provide a more accurate picture of the true environmental and financial cost of the industry, according to Wu Xiaoqing, vice-minister of environmental protection.

          At the current scale of production, 150,000 tons of rare earths per year, Wu estimated that the industry will need at least 1.5 billion yuan ($228 million) in investment to build sewage treatment facilities, which will incur annual running costs of 280 million yuan.

          Another 500 million yuan will be needed to build waste gas treatment facilities, with annual operation costs of 30 million yuan, Wu said.

          Previous environmental standards governing the mining and production of the lucrative minerals fell far short of what was required, with specific pollutants, such as nitrogen ammonia and some radioactive substances, not adequately covered, Wu said.

          "For instance, in 2005, the concentration of nitrogen ammonia in the discharge by the industry was between 300 and 5,000 mg/l, scores of times higher than the national standard," Wu said.

          Related readings:
          Green standards issued for rare earths China tackles rare earth industry reshuffle
          Green standards issued for rare earths New rules regulate rare earth industry
          Green standards issued for rare earths China to streamline rare earth industry within 5 yrs
          Green standards issued for rare earths Rare earth mining zones aim for sustainable use

          That year, China produced 103,900 tons of rare earths, which led to the emission of up to 25 million tons of sewage, according to Wu.

          Illegal mining, coupled with excessive and irrational production, has led to severe environmental degradation and resulted in a rapid depletion of reserves, said the vice-minister.

          Existing enterprises will be given a two-year grace period from the standards, but newcomers will have to abide by them immediately.

          To prevent enterprises "diluting emissions", benchmark volumes for sewage and waste gas will also be published and producers will have to keep within these limits, the ministry said in a statement on its website.

          "Some small- and medium-sized smelters, unable to meet the standards, are likely to be taken over by bigger ones, which will boost consolidation in the industry," said Wang Zhenhua, secretary-general of the Shanghai Society of Rare Earths.

          But the policy would not affect big companies that much, as they have already adopted strict environmental measures, said He Guoxin, director of the Sustainable Development Department at Hunan Nonferrous Metals Holding Group.

          A number of measures have already been introduced to protect rare earths. On Feb 16, the State Council said the government will impose stricter mining polices and set reasonable annual production and export quotas for the previously over-exploited sector.

          The country reduced export quotas by 11 percent for the first batch this year, after it slashed export quotas 30 to 40 percent in 2010, in a bid to protect sustainable development.

          分享按鈕
          主站蜘蛛池模板: 亚洲乱码中文字幕小综合| 久久天天躁狠狠躁夜夜婷| 起碰免费公开97在线视频| 国产成人MV视频在线观看| 一区二区欧美日韩高清免费| 97se综合| 国产粉嫩美女一区二区三| 狠狠色噜噜狠狠狠狠色综合久| 蜜臀午夜一区二区在线播放| 亚洲AV毛片一区二区三区| 亚洲中文超碰中文字幕| 国产一区二区在线观看粉嫩| 超碰成人人人做人人爽| 日韩亚洲国产高清免费视频| 亚洲国产另类久久久精品| 女高中生强奷系列在线播放| 免费无码又黄又爽又刺激| 亚洲天堂一区二区成人在线| 亚洲男人天堂av在线| 两个人的视频高清在线观看免费| 视频二区中文字幕在线| 插入中文字幕在线一区二区三区| 伊人久久久av老熟妇色| 亚洲AV无码成人网站久久精品| 美女胸18下看禁止免费视频| 亚洲熟女乱色一区二区三区| 99国产精品欧美一区二区三区| 国产重口老太和小伙| 国产亚洲无线码一区二区| 国产中文三级全黄| 成人无码www免费视频| 亚洲an日韩专区在线| 国产日韩一区二区天美麻豆| 中文字幕v亚洲ⅴv天堂| 欧美拍拍视频免费大全| 亚洲欧洲av一区二区久久| 亚洲中文无码+蜜臀| 亚洲爆乳成av人在线视菜奈实 | 久久99国内精品自在现线| 国产jizz中国jizz免费看| 99国精品午夜福利视频不卡99|