利用水解聚丙烯酰胺-明胶复合凝胶粒子吸附三价铬的研究
详细信息 查看官网全文
- 英文论文题名：Studies of chromium(Ⅲ) from aqueous solutions by HPAM-gelatin gel beads
- 论文作者：赵晓东 ; 匡卫 ; 付丽红 ; 刘东磊 ; 田荟琳
- 英文论文作者：ZHAO Xiaodong ; KUANG Wei ; FU Lihong ; LIU Donglei ; TIAN Huilin ; China Leather and Footwear Industry Research Institute Zhongpi Tianyuan Science and Technology Co. ; LTD ; Qilu University of Technology
- 年：2016
- 作者机构：中国皮革和制鞋工业研究院中皮天元科技有限公司;齐鲁工业大学;
- 论文关键词：水解聚丙烯酰胺 ; 铬吸附 ; 水处理
- 英文论文关键词：hydrolysis PAM ; chromium adsorption ; water treatment
- 会议召开时间：2016-07-27
- 会议录名称：2016第十一届全国皮革化学品学术交流会暨中国皮革协会技术委员会第21届年会摘要集
- 英文会议录名称：Abstracts of 2016 the 11th National Conference on Leather Chemicals & 21st Annual Convention of China Leather Science and Technology Commission
- 语种：中文
- 分类号：X794;O647.3
- 学会代码：ZGHG
- 会议名称：2016第十一届全国皮革化学品学术交流会暨中国皮革协会技术委员会第21届年会
- 会议地点：中国山东济南
- 主办单位：中国皮革协会技术委员会、中国皮革协会皮革化工专业委员会、中国化工学会精细化工专业委员会
- 学会名称：中国化工学会
- 页数：1
- 文件大小：53k
- 原文格式：O
- 会议级别：全国
摘要
以铝盐为交联剂、戊二醛为固化剂,制备了水解聚丙烯酰胺(HPAM)和明胶的复合凝胶粒子,将其用于水溶液三价铬离子的吸附,三价铬的去除率最高达93.76%。研究采用Langmuir模型和Freundlich模型分别对溶液中三价铬离子的吸附动力学及吸附等温线进行研究。其中,Freundlich模型的拟合结果在较宽的浓度范围内与实验结果相吻合。该复合凝胶粒子具有较好的重复利用性能,吸附-解吸附重复使用6次后,吸附效率仍然达到70%左右。尝试探讨了复合凝胶粒子的形成机理和吸附原理,为三价铬废液的处理提供理论基础和新思路。
HPAM-gelatin gel beads prepared by aluminum salt as crosslinking agent and glutaraldehyde as curing agent were utilized as an adsorbent in removing Cr(Ⅲ) from aqueous media.The high percentage of removal for Cr(Ⅲ)-93.76%suggests the great potential for HPAM-gelatin gel beads as an adsorbent for the removal of Cr(Ⅲ)ion from aqueous solution.The kinetic data has been tested in the process of adsorption for Cr(Ⅲ),and proved that it follows the pseudo-second-order rate equation.Both langmuir equations and freundlich equations were used for explaining the experimental data of adsorption isotherm,which demonstrated a better fit to the Freundlich model.The desorption of the gel particles showed that the adsorption efficiency can reach about 70%even the particles were reused six times.Moreover,chromium adsorption profile onto HPAM-gelatin gel beads was suggested through the schematic representation.
HPAM-gelatin gel beads prepared by aluminum salt as crosslinking agent and glutaraldehyde as curing agent were utilized as an adsorbent in removing Cr(Ⅲ) from aqueous media.The high percentage of removal for Cr(Ⅲ)-93.76%suggests the great potential for HPAM-gelatin gel beads as an adsorbent for the removal of Cr(Ⅲ)ion from aqueous solution.The kinetic data has been tested in the process of adsorption for Cr(Ⅲ),and proved that it follows the pseudo-second-order rate equation.Both langmuir equations and freundlich equations were used for explaining the experimental data of adsorption isotherm,which demonstrated a better fit to the Freundlich model.The desorption of the gel particles showed that the adsorption efficiency can reach about 70%even the particles were reused six times.Moreover,chromium adsorption profile onto HPAM-gelatin gel beads was suggested through the schematic representation.
引文