Preparation, characterization, and performance of 4A zeolite based on opal waste rock for removal of ammonium ion

Z Wu, J Xie, H Liu, T Chen, P Cheng… - Adsorption Science …, 2018 - journals.sagepub.com
In this study, 4A zeolite was prepared from opal waste rock by hydrothermal method and
applied in ammonium ion adsorption. To optimize synthesis conditions, the effect of …

An insight into the comprehensive application of opal-palygorskite clay: Synthesis of 4A zeolite and uptake of Hg2+

Z Wu, T Chen, H Liu, C Wang, P Cheng, D Chen… - Applied Clay …, 2018 - Elsevier
To availably utilize opal-palygorskite clay, dry beneficiation technique was applied to
separate opal and palygorskite clay. Based on separated opal from opal-palygorskite clay …

Revealing the effect of preparation parameters on zeolite adsorption performance for low and medium concentrations of ammonium

W He, H Gong, K Fang, F Peng, K Wang - Journal of Environmental …, 2019 - Elsevier
The effect of preparation parameters on the performance of zeolite for ammonium (20–300
mg N/L) adsorption from simulated wastewater is reported. It was found that the ratios of Na …

Synthesis of pure NaA zeolites from coal fly ashes for ammonium removal from aqueous solutions

Z Jiang, J Yang, H Ma, X Ma, J Yuan - Clean Technologies and …, 2016 - Springer
The pure NaA zeolites used as adsorbents for ammonium removal were successfully
synthesized from coal fly ash by means of alkaline fusion followed by hydrothermal …

NaA zeolite derived from blast furnace slag: its application for ammonium removal

H Guo, L Tang, B Yan, K Wan, P Li - Water Science and …, 2017 - iwaponline.com
In this paper, high value added NaA zeolite material was prepared from blast furnace (BF)
slag by hydrothermal method and its adsorption behavior on the removal of ammonium ion …

Removal of ammonium from wastewater by pure form low-silica zeolite Y synthesized from halloysite mineral

Y Zhao, B Zhang, Y Zhang, J Wang, J Liu… - Separation Science …, 2010 - Taylor & Francis
Pure form, single phase, and highly crystalline low-silica zeolite Y was synthesized from
natural nanotubular halloysite mineral by the hydrothermal method. In the synthesis process …

Synthesis of zeolite P1 from fly ash under solvent-free conditions for ammonium removal from water

Y Liu, C Yan, J Zhao, Z Zhang, H Wang, S Zhou… - Journal of Cleaner …, 2018 - Elsevier
In this work, zeolite P1 is synthesized from fluidized bed fly ash (FA) via a solvent-free
process. The formation of zeolite P1 is investigated as a function of crystallization reaction …

Ammonium removal from aqueous solution by zeolite X synthesized from halloysite mineral

Y Zhao, B Zhang, X Zhang, J Wang, J Liu… - Water Science and …, 2010 - iwaponline.com
Zeolite X was successfully synthesized from natural halloysite mineral by hydrothermal
method. The synthesized zeolite X was characterized by XRD, SEM, TEM and HRTEM. The …

Preparation of highly ordered cubic NaA zeolite from halloysite mineral for adsorption of ammonium ions

Y Zhao, B Zhang, X Zhang, J Wang, J Liu… - Journal of Hazardous …, 2010 - Elsevier
Well-ordered cubic NaA zeolite was first synthesized using natural halloysite mineral with
nanotubular structure as source material by hydro-thermal method. SEM and HRTEM …

[PDF][PDF] Removal of ammonium from aqueous solutions using synthetic zeolite obtained from coal fly-ash

Y Niu, Y Zhao, B Xi, X Hu, X Xia, L Wang… - Fresenius …, 2012 - researchgate.net
The purpose of this study was to investigate the removal of ammonium from aqueous
solutions using a novel zeolite obtained from coal fly-ash. The zeolite was characterized by …