PHOSPHORUS ADSORPTION FROM WASTEWATER BY IRON-OXIDE-COATED-ZEOLITE

Lu Yanqin 
Zhu Li  He Zhaoju 
Zhang Hua 
Li Xiaoxia

doi:10.13205/j.hjgc.201504011

Volume 33 Issue 4

Sep. 2015

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Lu Yanqin Zhu Li He Zhaoju Zhang Hua Li Xiaoxia, . PHOSPHORUS ADSORPTION FROM WASTEWATER BY IRON-OXIDE-COATED-ZEOLITE[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(4): 48-52. doi: 10.13205/j.hjgc.201504011

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Lu Yanqin Zhu Li He Zhaoju Zhang Hua Li Xiaoxia, . PHOSPHORUS ADSORPTION FROM WASTEWATER BY IRON-OXIDE-COATED-ZEOLITE[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(4): 48-52. doi: 10.13205/j.hjgc.201504011

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PHOSPHORUS ADSORPTION FROM WASTEWATER BY IRON-OXIDE-COATED-ZEOLITE

doi: 10.13205/j.hjgc.201504011

Lu Yanqin Zhu Li He Zhaoju Zhang Hua Li Xiaoxia,

Publish Date: 2015-04-22

Abstract

Abstract

In this paper，iron-oxide-coated-zeolite has been prepared by using natural zeolite and ferric nitrate． The absorbing effect of IOCZ on phosphorus was discussed．Ｒesults showed that: With the increase of the dosage of IOCZ，the adsorption amount first increased and then decreased． The removal rate of phosphorus went up with the increase of iron content． When the pH of solution was 7，the removal rate was 92. 6%． The influence of coexisting ions on phosphorus removal of absorbent was small． The adsorbing data fitted the Freundlich isothermal model and the adsorption process of phosphorus satisfactorily followed the pseudo-second order kinetic model． Using NaOH as regenerating agent had a good performance on regenaration， and the regeneration increased with the concentration of NaOH solution．
- iron-oxide-coated-zeolite,
- phosphorus removal,
- adsorption,
- adsorption reuse

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