【摘要】 本文研究了褐藻酸钠与Cu2+, Pb2+交换行为，通过海藻酸钠溶液与Cu2+, Pb2+的絮凝，测得两种离子最大交换量。考察了褐藻酸钠固体粉末与Cu2+, Pb2+在不同的反应条件下的离子交换与吸附行为。实验表明pH值，温度，时间，配比等条件是影响交换与吸附的因素，其吸附行为在一定的温度和一定的浓度范围内能较好的符合Freundlich等温吸附式更多还原

【Abstract】 The exchange and adsorption of Cu2+ or Pb2+ on algin was examined. In terms of the results, The maximum exchange amount of Cu2+ and Pb2+ was calculated to be 160mg/g and 262mg/g respectively. Freundlich isotherm was good appropriate type for this adsorption under a lower temperature. The influence of pH and time on adsorption was also discussed. The results showed the absorption rate increased with pH value and achieved more than 90% within 10 min.更多还原