Study on adsorption phenomenon of diffusion dialysis for acid recovery

Kun Wang; Weihong Xing; Zhaoxiang Zhong; Yiqun Fan

doi:10.1016/j.seppur.2013.03.013

Study on adsorption phenomenon of diffusion dialysis for acid recovery

Kun Wang, Weihong Xing, Zhaoxiang Zhong, Yiqun Fan

College of Chemical Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Diffusion dialysis (DD) is widely used to recover acid from waste water. This study examined the acid adsorption phenomenon from the non-steady state to dynamic equilibrium in a continuous dialyzer, and obtains the breakthrough curves at different acid concentrations and for different acid species (HNO ₃, H₂SO₄, H₃PO₄). Then the dynamic adsorption capacities (Q_ads) were calculated from breakthrough curves via the integration method, and they were identical to the Freundlich equilibrium isotherm. Finally, the operating conditions, such as the volumetric liquid flow rate of the feed, flow ratio and temperature were optimized on the basis of the adsorption and diffusion phenomenon in the DD process.

Original language	English
Pages (from-to)	144-149
Number of pages	6
Journal	Separation and Purification Technology
Volume	110
DOIs	https://doi.org/10.1016/j.seppur.2013.03.013
State	Published - 2013

Keywords

Acid recovery
Adsorption
Dialysis
Diffusion
Membrane
Transport processes

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title = "Study on adsorption phenomenon of diffusion dialysis for acid recovery",

abstract = "Diffusion dialysis (DD) is widely used to recover acid from waste water. This study examined the acid adsorption phenomenon from the non-steady state to dynamic equilibrium in a continuous dialyzer, and obtains the breakthrough curves at different acid concentrations and for different acid species (HNO 3, H2SO4, H3PO4). Then the dynamic adsorption capacities (Qads) were calculated from breakthrough curves via the integration method, and they were identical to the Freundlich equilibrium isotherm. Finally, the operating conditions, such as the volumetric liquid flow rate of the feed, flow ratio and temperature were optimized on the basis of the adsorption and diffusion phenomenon in the DD process.",

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author = "Kun Wang and Weihong Xing and Zhaoxiang Zhong and Yiqun Fan",

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T1 - Study on adsorption phenomenon of diffusion dialysis for acid recovery

AU - Wang, Kun

AU - Xing, Weihong

AU - Zhong, Zhaoxiang

AU - Fan, Yiqun

PY - 2013

Y1 - 2013

N2 - Diffusion dialysis (DD) is widely used to recover acid from waste water. This study examined the acid adsorption phenomenon from the non-steady state to dynamic equilibrium in a continuous dialyzer, and obtains the breakthrough curves at different acid concentrations and for different acid species (HNO 3, H2SO4, H3PO4). Then the dynamic adsorption capacities (Qads) were calculated from breakthrough curves via the integration method, and they were identical to the Freundlich equilibrium isotherm. Finally, the operating conditions, such as the volumetric liquid flow rate of the feed, flow ratio and temperature were optimized on the basis of the adsorption and diffusion phenomenon in the DD process.

AB - Diffusion dialysis (DD) is widely used to recover acid from waste water. This study examined the acid adsorption phenomenon from the non-steady state to dynamic equilibrium in a continuous dialyzer, and obtains the breakthrough curves at different acid concentrations and for different acid species (HNO 3, H2SO4, H3PO4). Then the dynamic adsorption capacities (Qads) were calculated from breakthrough curves via the integration method, and they were identical to the Freundlich equilibrium isotherm. Finally, the operating conditions, such as the volumetric liquid flow rate of the feed, flow ratio and temperature were optimized on the basis of the adsorption and diffusion phenomenon in the DD process.

KW - Acid recovery

KW - Adsorption

KW - Dialysis

KW - Diffusion

KW - Membrane

KW - Transport processes

UR - http://www.scopus.com/inward/record.url?scp=84876154804&partnerID=8YFLogxK

U2 - 10.1016/j.seppur.2013.03.013

DO - 10.1016/j.seppur.2013.03.013

M3 - 文章

AN - SCOPUS:84876154804

SN - 1383-5866

VL - 110

SP - 144

EP - 149

JO - Separation and Purification Technology

JF - Separation and Purification Technology

ER -

Study on adsorption phenomenon of diffusion dialysis for acid recovery

Abstract

Keywords

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