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A novel membrane-based integrated process for fractionation and reclamation of dairy wastewater
Chen, Zhiwei1,2; Luo, Jianquan1; Wang, Yujue1,2; Cao, Weifeng1; Qi, Benkun1; Wan, Yinhua1
2017-04-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume313Issue:APRPages:1061-1070
Abstract

An integrated isoelectric precipitation (IP) - ultrafiltration (UF) - nanofiltration (NF) - lactic acid (LA) fermentation process was established for recovering water, proteins, cells and LA from model dairy wastewater (MDW). This process could solve the problems of sludge/retentate disposal and membrane fouling during membrane-based wastewater treatment. The IP process greatly retarded concentration polarization and fouling of UF. However, PES membrane was still severely fouled by whey proteins. XPS results showed that carboxyl groups (C=O) belonging to the proteins was on PES10 surface, but it Was not found on Ultracel PLGC membrane. Proteins in MDW with IP were completely retained by Ultracel PLGC UF membrane and lactose almost passed through. After IP-UF pretreatment, the fouling of NF membrane was greatly retarded (irreversible fouling decreased from 44.4% to 11.1% in a pilot-plant test). Thus, the volume reduction ratio was highly increased to 37 and the retentate with high strength lactose of 44.2 g L-1 was obtained. With a model NF retentate (45.0 g L-1 of lactose) without proteins, 5.42 g L-1 of cell mass and 37.6 g L-1 of LA concentration were produced by the LA producer B. coagulans IPE22. (C) 2016 Elsevier B.V. All rights reserved.

KeywordWastewater Recycling Retentate Disposal Membrane Fouling Nanofiltration Process Integration Lactic Acid Fermentation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cej.2016.10.134
Indexed BySCI
Language英语
WOS KeywordION-EXCHANGE MEMBRANES ; REVERSE-OSMOSIS ; NANOFILTRATION ; REMOVAL ; ULTRAFILTRATION ; PRETREATMENT ; CULTIVATION ; DIGESTION ; RECOVERY ; HARDNESS
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
Funding OrganizationNational High Technology Research and Development Program of China(2014AA021006) ; "100 Talents Program" of Chinese Academy of Sciences
WOS IDWOS:000394723200107
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22100
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Zhiwei,Luo, Jianquan,Wang, Yujue,et al. A novel membrane-based integrated process for fractionation and reclamation of dairy wastewater[J]. CHEMICAL ENGINEERING JOURNAL,2017,313(APR):1061-1070.
APA Chen, Zhiwei,Luo, Jianquan,Wang, Yujue,Cao, Weifeng,Qi, Benkun,&Wan, Yinhua.(2017).A novel membrane-based integrated process for fractionation and reclamation of dairy wastewater.CHEMICAL ENGINEERING JOURNAL,313(APR),1061-1070.
MLA Chen, Zhiwei,et al."A novel membrane-based integrated process for fractionation and reclamation of dairy wastewater".CHEMICAL ENGINEERING JOURNAL 313.APR(2017):1061-1070.
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