PMID- 34662604
OWN - NLM
STAT- MEDLINE
DCOM- 20211222
LR  - 20221207
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 807
IP  - Pt 3
DP  - 2022 Feb 10
TI  - Microalgae-based swine wastewater treatment: Strain screening, conditions 
      optimization, physiological activity and biomass potential.
PG  - 151008
LID - S0048-9697(21)06086-1 [pii]
LID - 10.1016/j.scitotenv.2021.151008 [doi]
AB  - Using microalgae to treat swine wastewater (SW) can achieve wastewater 
      purification and biomass recovery at the same time. The algae species suitable 
      for growth in SW were screened in this study, and the response surface combined 
      with the desirability function method was used for multi-objective optimization 
      to obtain high algal biomass and pollutant removal. Chlorophyll fluorescence 
      parameters and biomass composition were analyzed to evaluate the cell 
      physiological activity and its application potential. Chlorella sp. HL was 
      selected as the most suitable species for growth in SW, and after 9 d of 
      cultivation, the maximum specific growth rate and highest algal density were 
      achieved 0.51 d(-1) and 2.43 x 10(7) cells/mL, respectively. In addition, the 
      removal of total phosphate and chemical oxygen demand were reached 69.13% and 
      72.95%, respectively. The optimum conditions for maximum algal density and 
      highest pollutant removal were determined as the light intensity of 
      58.73 mumol/m(2)/s, inoculation density of 5.0 x 10(6) cells/mL, and a light/dark 
      ratio of 3 using response surface model, and the predicted overall desirability 
      value was 0.96. The potential maximum quantum yield of PSII (Fv/Fm) of Chlorella 
      sp. HL in the early stage of cultivation was 0.60-0.70, while under high light 
      and long photoperiod, the value of Fv/Fm and performance index of Chlorella 
      decreased, trapped and dissipated energy flux per reaction center increased. The 
      higher heating value of 18.25 MJ/kg indicated that the Chlorella cultivated in SW 
      could be a good feedstock for biofuel production.
CI  - Copyright (c) 2021 Elsevier B.V. All rights reserved.
FAU - Liu, Xiao-Ya
AU  - Liu XY
AD  - Beijing Key Lab for Source Control Technology of Water Pollution, College of 
      Environmental Science and Engineering, Beijing Forestry University, Beijing 
      100083, China.
FAU - Hong, Yu
AU  - Hong Y
AD  - Beijing Key Lab for Source Control Technology of Water Pollution, College of 
      Environmental Science and Engineering, Beijing Forestry University, Beijing 
      100083, China. Electronic address: yuhong829908@gmail.com.
FAU - Zhao, Guang-Pu
AU  - Zhao GP
AD  - Beijing Key Lab for Source Control Technology of Water Pollution, College of 
      Environmental Science and Engineering, Beijing Forestry University, Beijing 
      100083, China.
FAU - Zhang, Hong-Kai
AU  - Zhang HK
AD  - Beijing Key Lab for Source Control Technology of Water Pollution, College of 
      Environmental Science and Engineering, Beijing Forestry University, Beijing 
      100083, China.
FAU - Zhai, Qing-Yu
AU  - Zhai QY
AD  - Beijing Key Lab for Source Control Technology of Water Pollution, College of 
      Environmental Science and Engineering, Beijing Forestry University, Beijing 
      100083, China.
FAU - Wang, Qiao
AU  - Wang Q
AD  - Beijing Key Lab for Source Control Technology of Water Pollution, College of 
      Environmental Science and Engineering, Beijing Forestry University, Beijing 
      100083, China.
LA  - eng
PT  - Journal Article
DEP - 20211016
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Waste Water)
SB  - IM
MH  - Animals
MH  - Biomass
MH  - *Chlorella
MH  - *Microalgae
MH  - Research
MH  - Swine
MH  - Wastewater
OTO - NOTNLM
OT  - Box-Behnken design
OT  - Chlorella sp. HL
OT  - Chlorophyll fluorescence parameters
OT  - Nutrient removal
OT  - Swine wastewater
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2021/10/19 06:00
MHDA- 2021/12/24 06:00
CRDT- 2021/10/18 20:11
PHST- 2021/08/06 00:00 [received]
PHST- 2021/10/09 00:00 [revised]
PHST- 2021/10/11 00:00 [accepted]
PHST- 2021/10/19 06:00 [pubmed]
PHST- 2021/12/24 06:00 [medline]
PHST- 2021/10/18 20:11 [entrez]
AID - S0048-9697(21)06086-1 [pii]
AID - 10.1016/j.scitotenv.2021.151008 [doi]
PST - ppublish
SO  - Sci Total Environ. 2022 Feb 10;807(Pt 3):151008. doi: 
      10.1016/j.scitotenv.2021.151008. Epub 2021 Oct 16.