CAS OpenIR
Sustainable utilization of cane molasses by an integrated separation process: Interplay between adsorption and nanofiltration
Luo, Jianquan1; Guo, Shiwei1; Qiang, Xiufu2; Hang, Xiaofeng1; Chen, Xiangrong1; Wan, Yinhua1
2019-07-15
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume219Pages:16-24
AbstractMolasses-based fermentation produces a large amount of wastewater with high salinity and recalcitrant pigments, and thus alternative strategies to efficiently utilize molasses are required. In this study, the clarified molasses were treated by nonpolar resin adsorption to recover caramel pigments, and this operation also greatly alleviated fouling formation on loose nanofiltration (NF) membranes used for molasses decolorization, especially the polyethersulphone (PES) membrane. PES1 membrane (molecular weight cut-off similar to 1000 Da, AMFOR) was selected as a substitute for NF5 membrane (340-460 Da, self-made) with a polyamide (PA) separation layer thanks to its stronger long-term chlorine resistance than NF5. The short-term chlorine cleaning at pH 12 could improve the hydrophilicity of PES1 and mitigate its irreversible fouling formation, but such effect decreased color retention by PES1 because the fouling-induced pore narrowing was weakened. The decolorized molasses (the PES1 permeate) were further treated by a tight NF and ion exchange resin adsorption, and the tight NF could not only separate sucrose and reducing sugar, but also retain most divalent ions and residual pigments lessening the burden of the subsequent resin adsorption. The sucrose-rich liquid could be used for sugar crystallization while the desalted reducing sugar was expected to be concentrated to produce syrup. This work offered a complete technological route for green and sustainable utilization of cane molasses from practical application point of view.
KeywordMolasses Chlorine resistance Loose nanofiltration Resin desalination Syrup Resource recovery
DOI10.1016/j.seppur.2019.03.008
Language英语
WOS KeywordWASTE-WATER TREATMENT ; FILTRATION BEHAVIOR ; SUGARCANE MOLASSES ; BEET MOLASSES ; COLOR REMOVAL ; MEMBRANE ; ULTRAFILTRATION ; PH ; DECOLORATION
Funding ProjectGuangxi Science and Technology Major Project[AA17204034] ; Key Research Program of Chinese Academy of Sciences[KFZDSW-211-3]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationGuangxi Science and Technology Major Project ; Key Research Program of Chinese Academy of Sciences
WOS IDWOS:000465054400003
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28141
Collection中国科学院过程工程研究所
Corresponding AuthorLuo, Jianquan; Wan, Yinhua
Affiliation1.Univ Chinese Acad Sci, Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Hefei Univ, 99 Jinxiu Ave, Hefei 230601, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Luo, Jianquan,Guo, Shiwei,Qiang, Xiufu,et al. Sustainable utilization of cane molasses by an integrated separation process: Interplay between adsorption and nanofiltration[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2019,219:16-24.
APA Luo, Jianquan,Guo, Shiwei,Qiang, Xiufu,Hang, Xiaofeng,Chen, Xiangrong,&Wan, Yinhua.(2019).Sustainable utilization of cane molasses by an integrated separation process: Interplay between adsorption and nanofiltration.SEPARATION AND PURIFICATION TECHNOLOGY,219,16-24.
MLA Luo, Jianquan,et al."Sustainable utilization of cane molasses by an integrated separation process: Interplay between adsorption and nanofiltration".SEPARATION AND PURIFICATION TECHNOLOGY 219(2019):16-24.
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