低成本吸附剂脱铬技术研究  

Research of low cost adsorbents for chromium removal from wastewater

作　　者：官小玉 常金明[1] 张家发[1] 范浩军[1] 陈意[1] 

机构地区：[1]四川大学制革清洁技术国家工程实验室,四川成都610065

出　　处：《中国皮革》2016年第8期6-13,18,共9页China Leather

摘　　要：低成本吸附剂具有经济实惠、来源广泛、性能优异等特点,故在含铬废水脱铬技术研究中取得重大进展。总结了生物质类吸附剂(藻类、植被、菌类、甲壳素、壳聚糖、木质纤维素、植物单宁、胶原纤维)以及无机类吸附剂(工业副产品、沸石、粘土、纳米材料)脱除废水中三价铬或六价铬离子的方法和特性,主要包括吸附剂预处理或改性、吸附机理、吸附影响因素、吸附模型拟合(平衡吸附及吸附动力学模型),吸附效率等方面做了论述与比较。A vast array of adsorbents were received an increasing number of attentions for tri - and hexavalent chromium removal from wastewater on account of their good adsorbing performance,low cost and large available source during the past two decades. The adsorption method and characteristics of low cost adsorbents, including biomass adsorbents （ algae, vegetation, fungus, chitin,chitosan,lignocellulose,vegetable tannin, and collagenous fiber） and inorganic adsorbents （ by - product of industry, zeolite, clay, and nano materials） for tri - and hexavalent chromium removal from wastewater were outlined. In addition, the preliminary treatment processes or modifying methods of some low cost adsorbents were also reviewed. Furthermore, the adsorption mechanism, influencing factors, fitting models（ adsorption isotherm and adsorption kinetic models） , as well as adsorption efficiency and capacities between low cost adsorbents and chromium were fully discussed and highlighted based on the literatures and our researching results.

关 键 词：生物质类吸附剂 无机类吸附剂 吸附 含铬废水 脱铬 

分 类 号：TQ424[化学工程]