Shanghai Jiao Tong University School of Environmental Science and Engineering, has recently set up e-waste can be resources, technology and equipment research institute, the Institute has successfully found a discarded circuit boards and road.
e-waste hidden
At present, China has become a household electrical appliance and electronic products production and consumption of power. At the same time, the resulting waste electrical and electronic volume reached 1 million tons per year -200 million tons, of which discarded circuit boards of about 50,000 tons -8 million tons, but also increasing every year.
Recently, a comprehensive electronic waste recycling equipment has been independently developed by the researchers, and has declared nine national patent. Discarded circuit boards in these machines as long as the mean.
e-waste is not waste, but rather be able to develop a
all kinds of waste materials
In the past, our method of dealing with discarded circuit boards are mostly open-air burning, acid and other indigenous methods, although the extract from the metal, may be emissions from waste will be on the atmosphere, soil, water, causing secondary pollution. Some manufacturers rely completely on manual sorting and handling of electronic waste, which would greatly harm the human body.
accordance with the reduction, reuse, recycling, sound principles, Shanghai Jiaotong University researchers figured out an efficient, pollution-free physical methods. Circuit board is first sent to a crusher, was crushed into a 10 mm -20 mm particles after they were sent to two crushing machine, which, under the circuit board becomes a fine powder of less than 0.8 mm. Then, all of the powder were all entering a Taipower election machine the.
上海交通大学研制成功的综合性电子垃圾回收设备
上海交通大学环境科学与工程学院，最近成立了电子垃圾可资源，技术和设备研究所，该研究所已成功地发现了一个废弃电路板和恢复“的道路”。
电子垃圾隐藏的“宝物”
目前
，中国已成为家电及电子产品生产和功耗。同时，由此产生的废电器及电子音量达到100万吨-200万吨，其中抛弃了大约50,000吨-8万元吨电路板，而且逐年增加。
最近，一个全面的电子废物回收设备已独立开发的研究人员，并宣布9个国家专利。在像“肚子里转圈子，金属的，非”这些机器长期废弃电路板的非金属材料是一个“稳定”，同样的材料，每个人都可以是“积极的老龄化”的意思。
电子垃圾不是废物，而是可以发展的第二源，具有高回收价值。金属电路板废料中含有大量被称为“城市矿山”与电脑零件平均吨，载有0.9黄金，铜和一百二十八点七公斤，塑料公斤270千克，58.5公斤铅，以及少量的钯，铂等贵金属。然而，废弃电路板还含有铅，汞，是有毒，有害物质的大量，是一个复杂的“矛盾”。
的各种废料“再生”
在过去，我们对废弃电路板的处理方法大多是露天焚烧，酸“洗金”等土办法，虽然从提取物金属，可从废物的排放量将在大气，土壤，水，造成二次污染。一些生产厂家wq靠人工分类和处理电子废物，这将大大损害人体。
的减少，再利用，再循环，无害原则，上海交通大学的研究人员找到了一个gx，无污染的物理方法。电路板首先被发送到一个破碎机，是为10毫米-20毫米的微粒发生后，被送往两个破碎机，而根据电路板成为小于0.8毫米细粉末粉碎。然后，所有的粉末都进入台电选举机器“的草案。”在高压静电的作用，所有的非金属粉末辊一直坚决隰猪，其余的金属粉末被“关闭”的大单位。{zh1}，金属粉末，然后由真空铜，铁，钢和其他组件，非蒸馏分离，金属粉末生产的可循环再用挤压负债表，其中，所有的废物可以“Gebenqiancheng”的。06.2.24
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