Interaction of Chlorella vulgaris and bacteria when co-cultivated in anaerobically digested swine manure

Lu Wang; Min Addy; Kirk Cobb; Hongpeng Ma; Renchuan Zhang; Dongjie Chen; Paul Chen; Hualing Wang; Yuhuan Liu; Roger Ruan

doi:10.1016/j.biortech.2020.124250

Interaction of Chlorella vulgaris and bacteria when co-cultivated in anaerobically digested swine manure

Lu Wang, Min Addy, Kirk Cobb, Hongpeng Ma, Renchuan Zhang, Dongjie Chen, Paul Chen, Hualing Wang, Yuhuan Liu, Roger Ruan

Bioproducts and Biosystems Engineering

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Mono-culture and co-culture of algae (Chlorella vulgaris) and bacteria (activated sludge) on anaerobically digested swine manure (ADSM) were investigated in this research. The results showed that during the co-cultivation biomass growth was promoted (2.43 ± 0.11 g/L) compared with the algae-only culture (1.09 ± 0.03 g/L), and the aerobic bacteria growth was initially promoted, then inhibited. The SEM (Scanning Electron Microscope) observation indicated that the amount of the C. vulgaris increased while bacteria ‘disappeared’ over time. After 30 min settlement, 95.5% of the biomass in co-cultivation group precipitated, while only 40.4% of the biomass settled for the algae-only group was. It is believed that the presence of bacteria enhanced the settling rate through the formation of algal consortium flocs. Bacterial community diversity and composition were measured and the results indicated that the bacterial diversity dropped and the bacterial active classes changed in the co-cultivation group.

Original language	English (US)
Article number	124250
Journal	Bioresource Technology
Volume	320
Issue number	Pt A
DOIs	https://doi.org/10.1016/j.biortech.2020.124250
State	Published - Jan 2021

Bibliographical note

Funding Information:
The data reported in this manuscript were from work supported in part by the Minnesota Environmental and Natural Resources Trust Fund as recommended by the Legislative Citizen Commission on Minnesota Resources (LCCMR, CON000000055335) and University of Minnesota Center for Biorefining. We also cooperated with the Genomics Center of the University of Minnesota for some of this work (http://genomics.umn.edu).

Funding Information:
The data reported in this manuscript were from work supported in part by the Minnesota Environmental and Natural Resources Trust Fund as recommended by the Legislative Citizen Commission on Minnesota Resources (LCCMR, CON000000055335) and University of Minnesota Center for Biorefining. We also cooperated with the Genomics Center of the University of Minnesota for some of this work (http://genomics.umn.edu).

Publisher Copyright:
© 2020 Elsevier Ltd

Keywords

Activated sludge
Chlorella vulgaris
Co-cultivation
Relationship and interaction
Wastewater treatment

PubMed: MeSH publication types

Journal Article

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2020.124250

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title = "Interaction of Chlorella vulgaris and bacteria when co-cultivated in anaerobically digested swine manure",

abstract = "Mono-culture and co-culture of algae (Chlorella vulgaris) and bacteria (activated sludge) on anaerobically digested swine manure (ADSM) were investigated in this research. The results showed that during the co-cultivation biomass growth was promoted (2.43 ± 0.11 g/L) compared with the algae-only culture (1.09 ± 0.03 g/L), and the aerobic bacteria growth was initially promoted, then inhibited. The SEM (Scanning Electron Microscope) observation indicated that the amount of the C. vulgaris increased while bacteria {\textquoteleft}disappeared{\textquoteright} over time. After 30 min settlement, 95.5% of the biomass in co-cultivation group precipitated, while only 40.4% of the biomass settled for the algae-only group was. It is believed that the presence of bacteria enhanced the settling rate through the formation of algal consortium flocs. Bacterial community diversity and composition were measured and the results indicated that the bacterial diversity dropped and the bacterial active classes changed in the co-cultivation group.",

keywords = "Activated sludge, Chlorella vulgaris, Co-cultivation, Relationship and interaction, Wastewater treatment",

author = "Lu Wang and Min Addy and Kirk Cobb and Hongpeng Ma and Renchuan Zhang and Dongjie Chen and Paul Chen and Hualing Wang and Yuhuan Liu and Roger Ruan",

note = "Funding Information: The data reported in this manuscript were from work supported in part by the Minnesota Environmental and Natural Resources Trust Fund as recommended by the Legislative Citizen Commission on Minnesota Resources (LCCMR, CON000000055335) and University of Minnesota Center for Biorefining. We also cooperated with the Genomics Center of the University of Minnesota for some of this work (http://genomics.umn.edu). Funding Information: The data reported in this manuscript were from work supported in part by the Minnesota Environmental and Natural Resources Trust Fund as recommended by the Legislative Citizen Commission on Minnesota Resources (LCCMR, CON000000055335) and University of Minnesota Center for Biorefining. We also cooperated with the Genomics Center of the University of Minnesota for some of this work (http://genomics.umn.edu). Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

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language = "English (US)",

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AU - Wang, Lu

AU - Addy, Min

AU - Cobb, Kirk

AU - Ma, Hongpeng

AU - Zhang, Renchuan

AU - Chen, Dongjie

AU - Chen, Paul

AU - Wang, Hualing

AU - Liu, Yuhuan

AU - Ruan, Roger

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PY - 2021/1

Y1 - 2021/1

N2 - Mono-culture and co-culture of algae (Chlorella vulgaris) and bacteria (activated sludge) on anaerobically digested swine manure (ADSM) were investigated in this research. The results showed that during the co-cultivation biomass growth was promoted (2.43 ± 0.11 g/L) compared with the algae-only culture (1.09 ± 0.03 g/L), and the aerobic bacteria growth was initially promoted, then inhibited. The SEM (Scanning Electron Microscope) observation indicated that the amount of the C. vulgaris increased while bacteria ‘disappeared’ over time. After 30 min settlement, 95.5% of the biomass in co-cultivation group precipitated, while only 40.4% of the biomass settled for the algae-only group was. It is believed that the presence of bacteria enhanced the settling rate through the formation of algal consortium flocs. Bacterial community diversity and composition were measured and the results indicated that the bacterial diversity dropped and the bacterial active classes changed in the co-cultivation group.

AB - Mono-culture and co-culture of algae (Chlorella vulgaris) and bacteria (activated sludge) on anaerobically digested swine manure (ADSM) were investigated in this research. The results showed that during the co-cultivation biomass growth was promoted (2.43 ± 0.11 g/L) compared with the algae-only culture (1.09 ± 0.03 g/L), and the aerobic bacteria growth was initially promoted, then inhibited. The SEM (Scanning Electron Microscope) observation indicated that the amount of the C. vulgaris increased while bacteria ‘disappeared’ over time. After 30 min settlement, 95.5% of the biomass in co-cultivation group precipitated, while only 40.4% of the biomass settled for the algae-only group was. It is believed that the presence of bacteria enhanced the settling rate through the formation of algal consortium flocs. Bacterial community diversity and composition were measured and the results indicated that the bacterial diversity dropped and the bacterial active classes changed in the co-cultivation group.

KW - Activated sludge

KW - Chlorella vulgaris

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KW - Relationship and interaction

KW - Wastewater treatment

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ER -

Interaction of Chlorella vulgaris and bacteria when co-cultivated in anaerobically digested swine manure

Abstract

Bibliographical note

Keywords

PubMed: MeSH publication types

UN SDGs

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