research

Research and application of heavy metal leaching of waste concretein Xiamen area

Abstract

重金属是我国“十二五”规划中重点防控的污染物,重金属对环境和人体极具潜在的威胁,它不但不能被微生物分解,反而可以被生物体富集,或与某些阴离子(团)形成其他毒性更强的金属化合物。重金属在环境中将经历地质和生化双重循环迁移转化,并通过各种渠道(如大气、饮水、食物等)进入人体,这种摄取将对人体造成极大危害。重金属的过量能抑制生物酶的活性,影响人体正常的生物化学反应。重金属与人体蛋白质、核糖、激素等反应,形成金属络合物或螯合物,使其丧失或改变原来的生理化学功能而产生病变。 我国建筑产业飞速发展,建设过程中产生了大量建筑垃圾,造成城市固体废弃物量的急剧增加,混凝土等建筑垃圾的再利用是解决上述问题的有效...National “12th-5 years plan” had an emphasize on the control and treatment of heavy metal element pollution, which can not be decomposed by microorganism and can be enriched in living things. The heavy metals in the environment will participate in geological and biochemical double circular, finally through the atmosphere, water, food and other forms of human intake destroy the healthy of human bei...学位:工程硕士院系专业:材料学院_工程硕士(材料工程)学号:X201219301

    Similar works