A two-stage ultrafiltration and nanofiltration process for recycling dairy wastewater

Jianquan Luo; Luhui Ding; Benkun Qi; Michel Y. Jaffrin; Yinhua Wan

doi:10.1016/j.biortech.2011.05.012

A two-stage ultrafiltration and nanofiltration process for recycling dairy wastewater

Jianquan Luo, Luhui Ding, Benkun Qi, Michel Y. Jaffrin, Yinhua Wan

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Abstract

A two-stage ultrafiltration and nanofiltration (UF/NF) process for the treatment of model dairy wastewater was investigated to recycle nutrients and water from the wastewater. Ultracel PLGC and NF270 membranes were found to be the most suitable for this purpose. In the first stage, protein and lipid were concentrated by the Ultracel PLGC UF membrane and could be used for algae cultivation to produce biodiesel and biofuel, and the permeate from UF was concentrated by the NF270 membrane in the second stage to obtain lactose in retentate and reusable water in permeate, while the NF retentate could be recycled for anaerobic digestion to produce biogas. With this approach, most of dairy wastewater could be recycled to produce reusable water and substrates for bioenergy production. Compared with the single NF process, this two-stage UF/NF process had a higher efficiency and less membrane fouling.

Original language	English
Journal	Bioresource Technology
Volume	102
Issue number	16
Pages (from-to)	7437-7442
ISSN	0960-8524
DOIs	https://doi.org/10.1016/j.biortech.2011.05.012
Publication status	Published - 2011
Externally published	Yes

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title = "A two-stage ultrafiltration and nanofiltration process for recycling dairy wastewater",

abstract = "A two-stage ultrafiltration and nanofiltration (UF/NF) process for the treatment of model dairy wastewater was investigated to recycle nutrients and water from the wastewater. Ultracel PLGC and NF270 membranes were found to be the most suitable for this purpose. In the first stage, protein and lipid were concentrated by the Ultracel PLGC UF membrane and could be used for algae cultivation to produce biodiesel and biofuel, and the permeate from UF was concentrated by the NF270 membrane in the second stage to obtain lactose in retentate and reusable water in permeate, while the NF retentate could be recycled for anaerobic digestion to produce biogas. With this approach, most of dairy wastewater could be recycled to produce reusable water and substrates for bioenergy production. Compared with the single NF process, this two-stage UF/NF process had a higher efficiency and less membrane fouling.",

author = "Jianquan Luo and Luhui Ding and Benkun Qi and Jaffrin, {Michel Y.} and Yinhua Wan",

year = "2011",

doi = "10.1016/j.biortech.2011.05.012",

language = "English",

volume = "102",

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T1 - A two-stage ultrafiltration and nanofiltration process for recycling dairy wastewater

AU - Luo, Jianquan

AU - Ding, Luhui

AU - Qi, Benkun

AU - Jaffrin, Michel Y.

AU - Wan, Yinhua

PY - 2011

Y1 - 2011

N2 - A two-stage ultrafiltration and nanofiltration (UF/NF) process for the treatment of model dairy wastewater was investigated to recycle nutrients and water from the wastewater. Ultracel PLGC and NF270 membranes were found to be the most suitable for this purpose. In the first stage, protein and lipid were concentrated by the Ultracel PLGC UF membrane and could be used for algae cultivation to produce biodiesel and biofuel, and the permeate from UF was concentrated by the NF270 membrane in the second stage to obtain lactose in retentate and reusable water in permeate, while the NF retentate could be recycled for anaerobic digestion to produce biogas. With this approach, most of dairy wastewater could be recycled to produce reusable water and substrates for bioenergy production. Compared with the single NF process, this two-stage UF/NF process had a higher efficiency and less membrane fouling.

AB - A two-stage ultrafiltration and nanofiltration (UF/NF) process for the treatment of model dairy wastewater was investigated to recycle nutrients and water from the wastewater. Ultracel PLGC and NF270 membranes were found to be the most suitable for this purpose. In the first stage, protein and lipid were concentrated by the Ultracel PLGC UF membrane and could be used for algae cultivation to produce biodiesel and biofuel, and the permeate from UF was concentrated by the NF270 membrane in the second stage to obtain lactose in retentate and reusable water in permeate, while the NF retentate could be recycled for anaerobic digestion to produce biogas. With this approach, most of dairy wastewater could be recycled to produce reusable water and substrates for bioenergy production. Compared with the single NF process, this two-stage UF/NF process had a higher efficiency and less membrane fouling.

U2 - 10.1016/j.biortech.2011.05.012

DO - 10.1016/j.biortech.2011.05.012

M3 - Journal article

C2 - 21624829

VL - 102

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EP - 7442

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

IS - 16

ER -

A two-stage ultrafiltration and nanofiltration process for recycling dairy wastewater

Abstract

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