Cultivation of flocculated microalgal-bacterial consortia using fluidised carriers for wastewater treatment and renewable energy production.

Autor: Hino Y; Department of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 6808552, Japan., Takabe Y; Department of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 6808552, Japan. Electronic address: takabe.yugo@tottori-u.ac.jp., Sarker MAR; Department of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 6808552, Japan., Horino T; Water Reclamation Technology Department, R&D Center, METAWATER Co., Ltd., JR Kanda Manseibashi Bldg. 1-25, Kanda-sudacho, Chiyoda-ku, Tokyo 1010041, Japan., Noguchi M; Water Reclamation Technology Department, R&D Center, METAWATER Co., Ltd., JR Kanda Manseibashi Bldg. 1-25, Kanda-sudacho, Chiyoda-ku, Tokyo 1010041, Japan.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2024 Sep; Vol. 408, pp. 131219. Date of Electronic Publication: 2024 Aug 05.
DOI: 10.1016/j.biortech.2024.131219
Abstrakt: Microalgal-bacterial consortia (MBC) and microalgal consortia (MC) were cultivated with primary and final treated wastewaters, respectively, using a fluidised carrier. This study determines the main factors and operations required for flocculating suspended MBC (SMBC) and MC (SMC) in cultures. The flocculated SMBC and SMC with good settleability require the detachment of thickened MBC or MC on the carrier and suppressed SMBC and SMC formation by the original MBC and MC grown in the culture. Flocculation was achieved by controlling the carrier and culture replacements. A carrier replacement ratio of 0.04 d -1 and a culture replacement ratio of 0.95 d -1 minimised the dissolved organic carbon (15.3 mg-C/L) and SMBC residue (7.3 mg/L). Thus, treating primary treated wastewater with MBC formed using fluidised carriers is a promising strategy, enabling the use of whole cells in MBC for renewable energy production.
Competing Interests: 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.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: