标题：Removal of ammonium from municipal landfill leachate using natural zeolites作者：Ye, Zhihong; Wang, Jiawen; Sun, Lingyu; Zhang, Daobin; Zhang, Hui

来源出版物：ENVIRONMENTAL TECHNOLOGY卷：36 期：23 SI页：2919-2923 DOI：10.1080/09593330.2014.941943 出版年：DEC 2 2015

摘要：Ammonium ion-exchange performance of the natural zeolite was investigated in both batch and column studies. The effects of zeolite dosage, contact time, stirring speed and pH on ammonium removal were investigated in batch experiments. The result showed that ammonium removal efficiency increased with an increase in zeolite dosage from 25 to 150g/L, and an increase in stirring speed from 200 to 250r/min. But further increase in zeolite dosage and stirring speed would result in an unpronounced increase of ammonium removal. The optimal pH for the removal of ammonium was found as 7.1. In the column studies, the effect of flow rate was investigated, and the total ammonium removal percentage during 180min operation time decreased with the flow rate though the ion-exchange capacity varied to a very small extent with the flow rate ranging from 4 to 9mL/min. The spent zeolite was regenerated by sodium chloride solution and the ammonia removal capacity of zeolite changed little or even increased after three regeneration cycles.

入藏号：WOS:000363696000003

文献类型：Article

语种：English

作者关键词：ammonium removal, ion exchange, leachate, treatment, zeolite

扩展关键词：AQUEOUS-SOLUTION; CLINOPTILOLITE; PRECIPITATION; OXIDATION; REACTOR; ION

通讯作者地址：Zhang, Hui; Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol

电子邮件地址：eeng@whu.edu.cn

地址：

[Ye, Zhihong; Wang, Jiawen; Sun, Lingyu; Zhang, Daobin; Zhang, Hui]Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

[Zhang, Daobin; Zhang, Hui] Tsinghua Univ, Shenzhen Res Inst, Shenzhen 518057, Peoples R China.

研究方向：Environmental Sciences & Ecology

ISSN：0959-3330

eISSN：1479-487X

影响因子（2014）：1.568