Fast removal of ammonium ion using a hydrogel optimized with response surface methodology

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 环境材料与生态化学研究发展中心

	Fast removal of ammonium ion using a hydrogel optimized with response surface methodology
	Zheng YA(郑易安); Liu Y(刘毅); Wang AQ(王爱勤)
刊名	Chemical Engineering Journal
	2011
卷号	171 期号:3 页码:1201-1208
关键词	Adsorption Ammonium ion Box-Behnken design Hydrogel Response surface methodology
ISSN号	1385-8947
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	Response surface methodology (RSM) based on a three-level, three-variable, Box-Behnken design (BBD) was used to optimize the preparation parameters of a hydrogel consisted of polyvinyl alcohol (PVA), acrylic acid (AA) and tourmaline (Tm). With the adsorption capacity for ammonium ion (NH4+) as the response, the effects of three variables, i.e. neutralization degree (ND) of AA, ratio of PVA to AA, and ratio of Tm to AA, were investigated. The predicted appropriate preparation conditions for the hydrogel were ND of AA of 70%, PVA:AA of 0.0833 and Tm:AA of 0.5, under which a hydrogel was prepared and used as the adsorbent to remove NH4+. The effects of contact time, ion strength, NH4+ concentration, temperature, and pH value on the adsorption capacity were investigated using a batch experiment. The results indicated that the as-prepared hydrogel showed entangled three-dimensional network and had the advantages of fast adsorption rate and high adsorption capacity for NH4+ in a pH range from 3.0 to 8.0. The regeneration and reusable experiments were also performed, and it was observed that the as prepared hydrogel was stable and regenerable using strong acid (HCl) or base (NaOH) as the desorbing agents.
学科主题	功能高分子
收录类别	SCI
资助信息	国家自然科学基金项目(20877077)
语种	英语
WOS记录号	WOS:000293664600052
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/81]
专题	兰州化学物理研究所_环境材料与生态化学研究发展中心
推荐引用方式 GB/T 7714	Zheng YA,Liu Y,Wang AQ. Fast removal of ammonium ion using a hydrogel optimized with response surface methodology[J]. Chemical Engineering Journal,2011,171(3):1201-1208.
APA	郑易安,刘毅,&王爱勤.(2011).Fast removal of ammonium ion using a hydrogel optimized with response surface methodology.Chemical Engineering Journal,171(3),1201-1208.
MLA	郑易安,et al."Fast removal of ammonium ion using a hydrogel optimized with response surface methodology".Chemical Engineering Journal 171.3(2011):1201-1208.