摘要
利用马铃薯提取淀粉后的废弃物——马铃薯渣制成的新型纤维(PDF)对重金属离子Hg2+、Pb2+、Cd2+单组分水溶液进行吸附研究,对吸附模型、吸附时间、不同吸附剂用量、pH值、温度等给予表征。结果表明:PDF对Hg2+、Pb2+、Cd2+的吸附是化学与物理吸附的综合结果。物理吸附中,对Hg2+、Pb2+的吸附既符合Langmuir吸附模式,又符合Freundlich吸附模式,而对Cd2+的吸附仅符合Langmuir吸附模式。
The adsorption of PDF, which was made by wastes starch being taken from potato, was used to remove Pb2+ , Hg2+ , Cd2+ in the waste water. The adsorption model, isotherms, the effects of adsorption time and pHValue, the dosage of different adsorbents and different metal ions were characterized respec tively. The adsorption model of Pb2+ , Hg2+ either can be described by Langmuir model or by Freundlich one, and Cd2+ adsorption can be described by Langmuir model only.
出处
《西南科技大学学报》
CAS
2003年第4期51-55,共5页
Journal of Southwest University of Science and Technology
