【摘要】 用盐酸溶液对海泡石进行处理和在450℃灼烧,制备出改性海泡石。在动态条件下,研究了改性海泡石对重金属离子Pb2+、Hg2+、Cd2+的吸附效果及吸附条件。同时探讨了改性海泡石对重金属离子Pb2+、Hg2+、Cd2+的吸附机理。含Pb2+、Hg2+、Cd2+的冶金废水经改性海泡石吸附后,重金属离子含量显著低于国家排放标准。更多还原

【Abstract】 A new adsorbent-unchanged meerschaum was preparedby treating the meerschaum with hydrochloric acid solution and firing at 450℃. Under the condition of dynamic state, the adsorption effect and conditions of unchanged meerschaum on heavy ions such as Pb2+,Hg2+ and Cd2+ were studied. The adsorption mechanism of unchanged meerschaum on Pb2+, Hg2+ and Cd2+ was discussed at the same time. When metallurgical wastewater containing Pb2+, Hg2+ and Cd2+ was absorbed by unchanged meerschaum, the contents of heavy metal ions in wastewater are prominently lower than the national discharge standard.更多还原