Evaluation of ammonia recovery from swine wastewater via a innovative spraying technology

Leipeng Cao; Jingjing Wang; Ting Zhou; Zihan Li; Shuyu Xiang; Fuqing Xu; Roger Ruan; Yuhuan Liu

doi:10.1016/j.biortech.2018.10.021

Evaluation of ammonia recovery from swine wastewater via a innovative spraying technology

Leipeng Cao, Jingjing Wang, Ting Zhou, Zihan Li, Shuyu Xiang, Fuqing Xu, Roger Ruan, Yuhuan Liu

Bioproducts and Biosystems Engineering

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Abstract

An innovative spraying system for NH₄ ⁺-N removal and recovery was investigated under different pH, temperature, spraying frequency and rate by using spraying system. Results showed that NH₄ ⁺-N removal efficiency and mass transfer coefficient (K_La) value in swine wastewater (SW) remarkably increased with increasing of temperature, spraying frequency and rate due to promoting the diffusion of NH₃ molecules caused by increasing specific surface of SW molecule, and high shear force and temperature difference between SW and circulating heating tube. Considering the cost and discharge standard, the optimum parameters for NH₄ ⁺-N removal from SW using spraying system were alkaline, 0.24 m³ h⁻¹ of continuous spraying, and 45 °C circulating water, and the NH₄ ⁺-N decreased from 591.2 to 68.9 mg L⁻¹ (<80 mg L⁻¹) after 8 h treatment, and this value corresponded to 88.35% removal rate. Furthermore, over 85% recovery rate for NH₄ ⁺-N could be obtained through absorption of phosphoric acid.

Original language	English (US)
Pages (from-to)	235-240
Number of pages	6
Journal	Bioresource Technology
Volume	272
DOIs	https://doi.org/10.1016/j.biortech.2018.10.021
State	Published - Jan 2019

Bibliographical note

Funding Information:
This research was supported by the Research Project of State Key Laboratory of Food Science and Technology Nanchang University (Project No. SKLF-ZZB-201722 ); Key project of Jiangxi Provincial Department of Science and Technology Jiangxi ( 20161BBF60057 ); The National Natural Science Foundation of China ( 21466022 , 21878139 ); Special fund for Jiangxi Province ( GCXZ2014-124 100102102082) for Financial Support; The National study abroad Fund.

Funding Information:
This research was supported by the Research Project of State Key Laboratory of Food Science and Technology Nanchang University (Project No. SKLF-ZZB-201722); Key project of Jiangxi Provincial Department of Science and Technology Jiangxi (20161BBF60057); The National Natural Science Foundation of China (21466022, 21878139); Special fund for Jiangxi Province (GCXZ2014-124 100102102082) for Financial Support; The National study abroad Fund.

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

Ammonia nitrogen
Mass transfer coefficient
Resin
Sprayer
Swine wastewater

UN SDGs

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

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title = "Evaluation of ammonia recovery from swine wastewater via a innovative spraying technology",

abstract = "An innovative spraying system for NH4 +-N removal and recovery was investigated under different pH, temperature, spraying frequency and rate by using spraying system. Results showed that NH4 +-N removal efficiency and mass transfer coefficient (KLa) value in swine wastewater (SW) remarkably increased with increasing of temperature, spraying frequency and rate due to promoting the diffusion of NH3 molecules caused by increasing specific surface of SW molecule, and high shear force and temperature difference between SW and circulating heating tube. Considering the cost and discharge standard, the optimum parameters for NH4 +-N removal from SW using spraying system were alkaline, 0.24 m3 h−1 of continuous spraying, and 45 °C circulating water, and the NH4 +-N decreased from 591.2 to 68.9 mg L−1 (<80 mg L−1) after 8 h treatment, and this value corresponded to 88.35% removal rate. Furthermore, over 85% recovery rate for NH4 +-N could be obtained through absorption of phosphoric acid.",

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note = "Funding Information: This research was supported by the Research Project of State Key Laboratory of Food Science and Technology Nanchang University (Project No. SKLF-ZZB-201722 ); Key project of Jiangxi Provincial Department of Science and Technology Jiangxi ( 20161BBF60057 ); The National Natural Science Foundation of China ( 21466022 , 21878139 ); Special fund for Jiangxi Province ( GCXZ2014-124 100102102082) for Financial Support; The National study abroad Fund. Funding Information: This research was supported by the Research Project of State Key Laboratory of Food Science and Technology Nanchang University (Project No. SKLF-ZZB-201722); Key project of Jiangxi Provincial Department of Science and Technology Jiangxi (20161BBF60057); The National Natural Science Foundation of China (21466022, 21878139); Special fund for Jiangxi Province (GCXZ2014-124 100102102082) for Financial Support; The National study abroad Fund. Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

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AU - Xiang, Shuyu

AU - Xu, Fuqing

AU - Ruan, Roger

AU - Liu, Yuhuan

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N2 - An innovative spraying system for NH4 +-N removal and recovery was investigated under different pH, temperature, spraying frequency and rate by using spraying system. Results showed that NH4 +-N removal efficiency and mass transfer coefficient (KLa) value in swine wastewater (SW) remarkably increased with increasing of temperature, spraying frequency and rate due to promoting the diffusion of NH3 molecules caused by increasing specific surface of SW molecule, and high shear force and temperature difference between SW and circulating heating tube. Considering the cost and discharge standard, the optimum parameters for NH4 +-N removal from SW using spraying system were alkaline, 0.24 m3 h−1 of continuous spraying, and 45 °C circulating water, and the NH4 +-N decreased from 591.2 to 68.9 mg L−1 (<80 mg L−1) after 8 h treatment, and this value corresponded to 88.35% removal rate. Furthermore, over 85% recovery rate for NH4 +-N could be obtained through absorption of phosphoric acid.

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Evaluation of ammonia recovery from swine wastewater via a innovative spraying technology

Abstract

Bibliographical note

Keywords

UN SDGs

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