DOI: 10.1016/j.watres.2017.11.049
Scopus记录号: 2-s2.0-85035015484
论文题名: The role of algal organic matter in the separation of algae and cyanobacteria using the novel “Posi” - Dissolved air flotation process
作者: Hanumanth Rao N.R. ; Yap R. ; Whittaker M. ; Stuetz R.M. ; Jefferson B. ; Peirson W.L. ; Granville A.M. ; Henderson R.K.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 130 起始页码: 20
结束页码: 30
语种: 英语
英文关键词: Algae harvesting
; Cyanobacteria
; Dissolved air flotation
; Polymer coated bubbles
Scopus关键词: Air
; Biogeochemistry
; Biotechnology
; Carbohydrates
; Cells
; Chlorine compounds
; Cytology
; Dissolution
; Flotation
; Optimization
; Polyelectrolytes
; Proteins
; Water treatment
; Biotechnology applications
; Cationic polyelectrolyte
; Coated-bubble
; Cyanobacteria
; Dissolved air flotations
; In-depth understanding
; Microcystis aeruginosa
; Positively charged bubbles
; Algae
; carbohydrate
; glycoprotein
; organic carbon
; organic matter
; poly(n,n diallyl n,n dimethylammonium chloride)
; polyelectrolyte
; protein
; unclassified drug
; poly-N,N-dimethyl-N,N-diallylammonium chloride
; polyethylene derivative
; quaternary ammonium derivative
; alga
; biotechnology
; carbohydrate
; cells and cell components
; cyanobacterium
; electrolyte
; optimization
; polymer
; protein
; water treatment
; alga
; Article
; biotechnology
; cell separation
; chemical composition
; Chlorella vulgaris
; conjugation
; cyanobacterium
; flotation
; Microcystis aeruginosa
; Mychonastes homosphaera
; nonhuman
; priority journal
; process optimization
; separation technique
; water treatment
; chemistry
; Chlorella vulgaris
; green alga
; Microcystis
; procedures
; water management
; algae
; Chlorella vulgaris
; Cyanobacteria
; Microcystis aeruginosa
; Mychonastes homosphaera
; Biotechnology
; Chlorella vulgaris
; Chlorophyta
; Cyanobacteria
; Microcystis
; Polyethylenes
; Quaternary Ammonium Compounds
; Water Purification
英文摘要: Algae and cyanobacteria frequently require separation from liquid media in both water treatment and algae culturing for biotechnology applications. The effectiveness of cell separation using a novel dissolved air flotation process that incorporates positively charged bubbles (PosiDAF) has recently been of interest but has been shown to be dependent on the algae or cyanobacteria species tested. Previously, it was hypothesised that algal organic matter (AOM) could be impacting the separation efficiency. Hence, this study investigates the influence of AOM on cell separation using PosiDAF, in which bubbles are modified using a commercially available cationic polyelectrolyte poly(N, N-diallyl-N,N-dimethylammonium chloride) (PDADMAC). The separation of Chlorella vulgaris CS-42/7, Mychonastes homosphaera CS-556/01 and two strains of Microcystis aeruginosa (CS-564/01 and CS-555/1), all of which have similar cell morphology but different AOM character, was investigated. By testing the cell separation in the presence and absence of AOM, it was determined that AOM enhanced cell separation for all the strains but to different extents depending on the quantity and composition of carbohydrates and proteins in the AOM. By extracting AOM from the strain for which optimal separation was observed and adding it to the others, cell separation improved from <55% to >90%. This was attributed to elevated levels of acidic carbohydrates as well as glycoprotein-carbohydrate conjugations, which in turn were related to the nature and quantity of proteins and carbohydrates present in the AOM. Therefore, it was concluded that process optimisation requires an in-depth understanding of the AOM and its components. If culturing algae for biotechnology applications, this indicates that strain selection is not only important with respect to high value product content, but also for cell separation. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113049
Appears in Collections: 气候减缓与适应
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作者单位: bioMASS Lab, School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia; Centre for Advanced Macromolecular Design, School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia; UNSW Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia; Cranfield Water Science Institute, School of Applied Sciences, Cranfield University, Bedfordshire, MK43 0AL, United Kingdom; Water Research Laboratory, School of Civil and Environmental Engineering, The University of New South Wales, Manly Vale, NSW 2093, Australia; BASF Corp., Charlotte, North Carolina 28273, United States; ARC Center of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University – Parkville CampusVIC 3052, Australia; TDK Research Solutions, Bondi Junction, NSW 2022, Australia
Recommended Citation:
Hanumanth Rao N.R.,Yap R.,Whittaker M.,et al. The role of algal organic matter in the separation of algae and cyanobacteria using the novel “Posi” - Dissolved air flotation process[J]. Water Research,2018-01-01,130