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Microalgae cultivation in wastewater effluent from tilapia culture pond for enhanced bioethanol production

Water science and technology, 2021-11, Vol.84 (10-11), p.2686-2694 [Peer Reviewed Journal]

ISSN: 0273-1223 ;EISSN: 1996-9732 ;DOI: 10.2166/wst.2021.194

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  • Title:
    Microalgae cultivation in wastewater effluent from tilapia culture pond for enhanced bioethanol production
  • Author: Bhuyar, Prakash ; Trejo, Marlen ; Dussadee, Natthawud ; Unpaprom, Yuwalee ; Ramaraj, Rameshprabu ; Whangchai, Kanda
  • Subjects: biomass ; fermentation ; microalgae ; pond effluent
  • Is Part Of: Water science and technology, 2021-11, Vol.84 (10-11), p.2686-2694
  • Description: Abstract The large number of wastewaters are generated because of the various production processes. Vegetable and fish processing can be considered an important industry for wastewater generation. The essential method for completing this waste is to digest the organic matter using anaerobic digestion followed by aerobic wastewater treatment processes; however, wastewater from tilapia culture pond retains considerable quantities of inorganic substances, particularly nutrients like nitrogen and phosphorus. The optimal conditions for cultivating Chlorella vulgaris from wastewater treatment effluent from tilapia culture pond were investigated in this study. The appropriate conditions were found to be 10% initial stock suspension, 20 cm depth, and 12 days of culture conditions. C. vulgaris had an optical density of 0.649, a cell density of 17.68 × 105 cells/mL, and biomass of 0.376 ± 94.21 mg/L after cultivation. Discharged wastewater from the fishpond was utilized for the improved growth of microalgae and obtained biomass was used for bioethanol production. This study verified that fishpond wastewater is the best source of nutrients for algal mass production and biofuel applications.
  • Publisher: IWA Publishing
  • Language: English
  • Identifier: ISSN: 0273-1223
    EISSN: 1996-9732
    DOI: 10.2166/wst.2021.194
  • Source: DOAJ : Directory of Open Access Journals
    ProQuest Central
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