Facile fabrication of sodium styrene sulfonate-grafted ethylene-vinyl alcohol copolymer as adsorbent for ammonium removal from aqueous solution

Environmental Science and Pollution Research International
Jifu DuLong Zhao

Abstract

An adsorbent EVOH-g-SSS(H) was successfully synthesized for ammonium removal by one-step grafting SSS onto EVOH particles directly using radiation-induced grafting technique followed by protonation. The effects of adsorbed dose and monomer concentration on grafting yield were investigated. The adsorption behaviors of the EVOH-g-SSS(H) towards ammonium ions (NH4+) were discussed. The adsorption isotherm of NH4+ was a followed Langmuir model with the maximum adsorption capacity of 22.53 mg/g at optimal pH 6.5. For comparison, adsorption kinetics towards NH4+ removal by EVOH-g-SSS(H) and commercially available DIAION PK228 were studied. Both adsorbents were better obeyed pseudo-second-order mode. EVOH-g-SSS(H) for NH4+ uptake was faster than PK228 and reached equilibrium within 5 min. Column experiment showed that the column adsorption capacity of EVOH-g-SSS(H) adsorbent was 9.69 mg/g-ad at SV 10 h-1. The NH4+ concentration in outlet solution can maintain at a very low level even SV was as high as 800 h-1. The elution curve showed the EVOH-g-SSS(H) adsorbent can be regenerated using 1 M HCl. Besides, the removal percentage of NH4+ can be 97% from actual groundwater within 1 min. Such high adsorption efficiency of EVOH-g-SSS(H) mak...Continue Reading

References

Apr 17, 2003·Water Research·T C Jorgensen, L R Weatherley
Sep 30, 2006·Journal of Hazardous Materials·Zhi-Yong JiXin-Gang Li
Jul 25, 2008·Journal of Hazardous Materials·A Zgajnar GotvajnJ Zagorc-Koncan
Oct 31, 2009·Journal of Hazardous Materials·Haiming HuangLiping Yang
Feb 23, 2010·Journal of Hazardous Materials·Yafei ZhaoRongfeng Chen
Nov 14, 2015·Environmental Science and Pollution Research International·Xiao-Ling WangJian-Sheng Li
Apr 1, 2016·Environmental Science and Pollution Research International·Yassmina AngarSalima Kebbouche-Gana
Feb 24, 2017·Environmental Science and Pollution Research International·Hye In YangScott X Chang
Feb 8, 2018·Environmental Science and Pollution Research International·Li-Juan PangGuo-Zhong Wu

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