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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
发表期刊CHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
卷号313期号:APR页码:1061-1070
摘要

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.

关键词Wastewater Recycling Retentate Disposal Membrane Fouling Nanofiltration Process Integration Lactic Acid Fermentation
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cej.2016.10.134
收录类别SCI
语种英语
关键词[WOS]ION-EXCHANGE MEMBRANES ; REVERSE-OSMOSIS ; NANOFILTRATION ; REMOVAL ; ULTRAFILTRATION ; PRETREATMENT ; CULTIVATION ; DIGESTION ; RECOVERY ; HARDNESS
WOS研究方向Engineering
WOS类目Engineering, Environmental ; Engineering, Chemical
项目资助者National High Technology Research and Development Program of China(2014AA021006) ; "100 Talents Program" of Chinese Academy of Sciences
WOS记录号WOS:000394723200107
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22100
专题生化工程国家重点实验室
作者单位1.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
推荐引用方式
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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