Ammonium assists orthophosphate removal from high-strength wastewaters by natural zeolite

Lin Lin; Chunli Wan; Duu-Jong Lee; Zhongfang Lei; Xiang Liu

doi:10.1016/j.seppur.2014.07.010

Ammonium assists orthophosphate removal from high-strength wastewaters by natural zeolite

Lin Lin
, Chunli Wan
, Duu-Jong Lee
, Zhongfang Lei
, Xiang Liu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

74 Citations (Scopus)

Abstract

Nutrients discharge correlates to eutrophication of receiving waters. Phosphorus (P) and nitrogen (N), if recovered from wastewaters, can be applied to land as essential nutrients for plant growth. This study used natural zeolite in batch and continuous tests to simultaneously remove P and N from orthophosphate and ammonium-nitrogen laden wastewaters at pH 3-11. In P only tests, pH > 9 is favorable to P removal. When ammonium was also present, P removal was significantly enhanced. Ammonium was first adsorbed onto the zeolite via ion exchange to release Ca²⁺ ions from the zeolite lattice. This ion exchange reaction was independent of the presence of P. Then the released Ca²⁺ ions precipitated the dissolved phosphate, which was greatly dependent on the concentration of ammonium. Zeolite column could effectively remove P and N from fermentation liquor with minimal adsorption of volatile fatty acids. Implications to practice of zeolite treatment were discussed. © 2014 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	351-356
Journal	Separation and Purification Technology
Volume	133
DOIs	https://doi.org/10.1016/j.seppur.2014.07.010
Publication status	Published - 8 Sept 2014
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Research Keywords

Ammonium
Fermentation liquor
Mechanism
Natural zeolite
Phosphate
Simultaneous removal

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10.1016/j.seppur.2014.07.010

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abstract = "Nutrients discharge correlates to eutrophication of receiving waters. Phosphorus (P) and nitrogen (N), if recovered from wastewaters, can be applied to land as essential nutrients for plant growth. This study used natural zeolite in batch and continuous tests to simultaneously remove P and N from orthophosphate and ammonium-nitrogen laden wastewaters at pH 3-11. In P only tests, pH > 9 is favorable to P removal. When ammonium was also present, P removal was significantly enhanced. Ammonium was first adsorbed onto the zeolite via ion exchange to release Ca2+ ions from the zeolite lattice. This ion exchange reaction was independent of the presence of P. Then the released Ca2+ ions precipitated the dissolved phosphate, which was greatly dependent on the concentration of ammonium. Zeolite column could effectively remove P and N from fermentation liquor with minimal adsorption of volatile fatty acids. Implications to practice of zeolite treatment were discussed. {\textcopyright} 2014 Elsevier B.V. All rights reserved.",

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author = "Lin Lin and Chunli Wan and Duu-Jong Lee and Zhongfang Lei and Xiang Liu",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

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T1 - Ammonium assists orthophosphate removal from high-strength wastewaters by natural zeolite

AU - Lin, Lin

AU - Wan, Chunli

AU - Lee, Duu-Jong

AU - Lei, Zhongfang

AU - Liu, Xiang

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2014/9/8

Y1 - 2014/9/8

N2 - Nutrients discharge correlates to eutrophication of receiving waters. Phosphorus (P) and nitrogen (N), if recovered from wastewaters, can be applied to land as essential nutrients for plant growth. This study used natural zeolite in batch and continuous tests to simultaneously remove P and N from orthophosphate and ammonium-nitrogen laden wastewaters at pH 3-11. In P only tests, pH > 9 is favorable to P removal. When ammonium was also present, P removal was significantly enhanced. Ammonium was first adsorbed onto the zeolite via ion exchange to release Ca2+ ions from the zeolite lattice. This ion exchange reaction was independent of the presence of P. Then the released Ca2+ ions precipitated the dissolved phosphate, which was greatly dependent on the concentration of ammonium. Zeolite column could effectively remove P and N from fermentation liquor with minimal adsorption of volatile fatty acids. Implications to practice of zeolite treatment were discussed. © 2014 Elsevier B.V. All rights reserved.

AB - Nutrients discharge correlates to eutrophication of receiving waters. Phosphorus (P) and nitrogen (N), if recovered from wastewaters, can be applied to land as essential nutrients for plant growth. This study used natural zeolite in batch and continuous tests to simultaneously remove P and N from orthophosphate and ammonium-nitrogen laden wastewaters at pH 3-11. In P only tests, pH > 9 is favorable to P removal. When ammonium was also present, P removal was significantly enhanced. Ammonium was first adsorbed onto the zeolite via ion exchange to release Ca2+ ions from the zeolite lattice. This ion exchange reaction was independent of the presence of P. Then the released Ca2+ ions precipitated the dissolved phosphate, which was greatly dependent on the concentration of ammonium. Zeolite column could effectively remove P and N from fermentation liquor with minimal adsorption of volatile fatty acids. Implications to practice of zeolite treatment were discussed. © 2014 Elsevier B.V. All rights reserved.

KW - Ammonium

KW - Fermentation liquor

KW - Mechanism

KW - Natural zeolite

KW - Phosphate

KW - Simultaneous removal

UR - https://www.scopus.com/pages/publications/84905245596

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U2 - 10.1016/j.seppur.2014.07.010

DO - 10.1016/j.seppur.2014.07.010

M3 - RGC 21 - Publication in refereed journal

SN - 1383-5866

VL - 133

SP - 351

EP - 356

JO - Separation and Purification Technology

JF - Separation and Purification Technology

ER -

Ammonium assists orthophosphate removal from high-strength wastewaters by natural zeolite

Abstract

Bibliographical note

UN SDGs

Research Keywords

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