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化工新型材料  2019, Vol. 47 Issue (9): 241-244    
  开发与应用 本期目录 | 过刊浏览 | 高级检索 |
响应面法优化改性碳化稻壳对铅的吸附
张婷婷1, 陈宏1,3*, 刘旭1, 靖玉1, 孙思阳1, 励建荣2,3
1.渤海大学化学化工学院,锦州121013;
2.渤海大学食品科学与工程学院,锦州121013;
3.生鲜农产品贮藏加工及质量安全控制技术国家地方联合工程技术研究中心,锦州121013
Process optimization of lead adsorption onto modified rice husk using response surface methodology
Zhang Tingting1, Chen Hong1,3, Liu Xu1, Jing Yu1, Sun Siyang1, Li Jianrong2,3
1.College of Chemistry and Chemical Engineering,Bohai University,Jinzhou 121013;
2.College of Food Science and Technology,Bohai University,Jinzhou 121013;
3.National & Local Joint Engineering Research Center of Storage,Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products,Jinzhou 121013
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摘要 采用聚天冬氨酸(PASP)改性碳化稻壳作为新型生物吸附剂对水溶液中铅离子进行吸附,探讨了影响吸附效果的主要因素,并利用Box-Behnken响应面法对吸附条件进行了优化。单因素实验结果表明,溶液pH、脱除时间、吸附剂投加量对铅的吸附产生较大影响。响应面分析法对吸附条件的优化结果表明,当pH=3.5、脱除时间为40min、吸附剂投加量为0.06g时,PASP改性碳化稻壳对铅的吸附效果最好,理论脱除率可达到99.45%,与实测脱除率仅偏差3.73%。研究表明,PASP改性碳化稻壳能显著提高吸附铅的能力和效率。
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张婷婷
陈宏
刘旭
靖玉
孙思阳
励建荣
关键词:    改性稻壳  聚天冬氨酸  响应面法    
Abstract: Rice husk modified by polyaspartic acid (PASP) was used for the removal of lead in aqueous solution.The main factor affecting the removal of lead was discussed and the optimize conditions was investigated using response surface methodology.The experiment results of single factor showed that the solution pH,removal time,and rice husk dosage had great influence on the lead adsorption on rice husk modified by PASP.The experimental results of response surface methodology showed that the maximum percent removal achieved was predicted to be 99.45% under the optimal conditions of 3.5 for pH,0.06g for rice husk dosage,and 40min for removal time.The deviation between predicated removal rate and measured removal rate was only 3.73%.PASP modified rice husk can significantly improve the efficiency and ability of lead adsorbing,and it can be used for the removal of lead from aqueous solution.
Key words:  lead    modified rice husk    polyaspartic acid    response surface methodology
收稿日期:  2018-04-17                     发布日期:  2019-10-10      期的出版日期:  2019-09-20
基金资助: “十二五”国家科技支撑计划(2012BAD29B06);辽宁省科技厅攻关项目(2015103020);泰山学者蓝色产业领军人才团队支撑计划项目[鲁政办字(2015)19号]
通讯作者:  陈宏(1964-),女,博士,教授,主要从事重金属形态分析与脱除研究。   
作者简介:  张婷婷(1994-),女,硕士研究生,主要从事重金属吸附与脱除研究。
引用本文:    
张婷婷, 陈宏, 刘旭, 靖玉, 孙思阳, 励建荣. 响应面法优化改性碳化稻壳对铅的吸附[J]. 化工新型材料, 2019, 47(9): 241-244.
Zhang Tingting, Chen Hong, Liu Xu, Jing Yu, Sun Siyang, Li Jianrong. Process optimization of lead adsorption onto modified rice husk using response surface methodology. New Chemical Materials, 2019, 47(9): 241-244.
链接本文:  
http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2019/V47/I9/241
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