【摘要】 综述了自2000年至今国内外研究改性天然矿物吸附废水中重金属离子的研究情况。高岭土、海泡石、蒙脱石、硅藻土、沸石、铁矿和锰矿等天然矿物来源广泛,价格低廉,具有取代传统的高成本处理重金属废水方法的潜力,改性之后对重金属离子有更好的效果。详细介绍了用酸、碱、氧化剂、有机物等改性天然矿物的研究进展,指出其中问题并展望了应用前景。更多还原

【Abstract】 The application of modified natural ores as a replacement for costly conventional methods of removing heavy metal ions from wastewater since 2000 has been reviewed. It is well known that natural ores can be obtained and employed as cheap adsorbents and their performance to remove heavy metal ions. It can be modified by chemical treatment. Numerous chemicals which were used for modifications including acids, bases, oxidizing agent, organic compounds, etc are introduced. The drawbacks in the study and the developmental foreground are also pointed out.更多还原