Coupled cultivation and pre-harvesting of microalgae in a membrane photobioreactor (MPBR)

Bilad, Muhammad Roil; Discart, Valerie; Vandamme, Dries; Foubert, Imogen; Muylaert, Koenraad; Vankelecom, Ivo F.J.

doi:10.1016/j.biortech.2013.05.026

Cited by 113 publications

(31 citation statements)

References 24 publications

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“…An MPBR has a good advantage because the SRT can be controlled independently from the HRT to achieve the optimum biomass concentration. Combination of a pre-cultivation PBR with an MPBR also has potential to maintain the optimum biomass concentration [27]. In the two-stage cultivation process, C. vulgaris was cultivated to approximately 800 mg/L in the first PBR (without a submerged membrane) for pre-cultivation, then sent to the second PBR equipped with a submerged membrane for further concentrated cultivation to approximately 2,000 mg/L.…”

Section: Optimum Microalgae Concentration In a Membrane Photobioreactormentioning

confidence: 99%

Optimization of Hydraulic Retention Time and Biomass Concentration in Microalgae Biomass Production from Treated Sewage with a Membrane Photobioreactor

Honda

Teraoka

Noguchi

et al. 2017

J. of Wat. & Envir. Tech.

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Treated sewage is a promising source of nitrogen and phosphorus in microalgae biomass production for carbon-neutral biofuel and chemical products. In this study, Chlorella vulgaris was continuously cultivated in membrane photobioreactors (MPBRs) under short hydraulic retention times (HRTs) and with different numbers of submerged membrane modules to investigate potential microalgae productivity when treated sewage was used as a nutrient source. Microalgae biomass concentrations were independent of HRT in MPBRs with one membrane module owing to microalgae biomass deposition on the membrane. Installation of an additional submerged membrane module effectively reduced deposition on the submerged membrane, resulting in increased microalgae biomass concentration and volumetric productivity. Growth kinetics suggested that HRT is the essential parameter influencing the volumetric productivity of microalgae under nutrient-limited conditions, and that optimization of the biomass concentration, which depends on the surface/volume ratio of the photobioreactor and initial light intensity, is critical to maximization of the volumetric productivity under light-limited conditions.

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Section: Optimum Microalgae Concentration In a Membrane Photobioreactormentioning

confidence: 99%

Optimization of Hydraulic Retention Time and Biomass Concentration in Microalgae Biomass Production from Treated Sewage with a Membrane Photobioreactor

Honda

Teraoka

Noguchi

et al. 2017

J. of Wat. & Envir. Tech.

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“…By applying the MPBR for growing green microalgae Chlorella vulgaris, C. vulgaris was cultivated with synthetic anaerobic digestion supernatant as a nutrient source without the shortage of nutrients (TN, PO 4 3-, SO 4 2-). Although the microalgal productivity was lower than the previous MPBR systems using wastewater, this report showed the potency to obtain large amount of cultivation media with suitable N:P ratio by mixing anaerobic digestion supernatant (nutrient rich) and the treated domestic wastewater (plenteous).…”

Section: Discussionmentioning

confidence: 99%

“…However, due to the low nutrient concentrations (especially P) in the treated wastewater, the microalgal biomass productivity has not reached a practical level yet (0.5 − 0.6 g/L/day). A membrane photobioreactor (MPBR) is a type of platform reactor combined with immersed membrane which can be used for cultivation of microalgae [4]. The introduction of the membrane enables the replacement of cultivating media without washing out the microalgae, obtaining large microalgal retention time.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Anaerobic Digestion Supernatant as a Nutrient Source in Microalgal Biomass Production with a Membrane Photobioreactor

Noguchi

Hashimoto

Honda

et al. 2017

J. of Wat. & Envir. Tech.

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The green microalgae Chlorella vulgaris, which is known to accumulate valuable substrates, are one of the promising bio-resources. To achieve the mass cultivation of microalgae, anaerobic digestion supernatant was applied as cultivation media in membrane photobioreactor system. In the experiment, the synthesized anaerobic digestion supernatant mimicked from activated sludge collected from an actual wastewater treatment plant in Ishikawa, Japan, was used as cultivation media. In the point of view of nutrient loading, the diluted digestion supernatant satisfied the level for growth. Especially, N/P ratio was 3.8 with high concentration of P, which was previously reported as limiting factor when treated sewage was used as media. Although the maximum biomass productivity (5.58 mg/L/day) was below the previously reported data with treated sewage, the high P concentration in anaerobic digestion supernatant could be utilized as a "supplement" in media.

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“…The C. vulgaris (SAG, Germany, 211-11B) broth was produced from a continuous MPBR reported elsewhere [26]. The MPBR offers a substantial advantage to simultaneously cultivate and pre-harvest microalgae.…”

Section: Microalgal Broth Cultivationmentioning

confidence: 99%

Decreasing membrane fouling during Chlorella vulgaris broth filtration via membrane development and coagulant assisted filtration

et al. 2015

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Coupled cultivation and pre-harvesting of microalgae in a membrane photobioreactor (MPBR)

Cited by 113 publications

References 24 publications

Optimization of Hydraulic Retention Time and Biomass Concentration in Microalgae Biomass Production from Treated Sewage with a Membrane Photobioreactor

Optimization of Hydraulic Retention Time and Biomass Concentration in Microalgae Biomass Production from Treated Sewage with a Membrane Photobioreactor

Utilization of Anaerobic Digestion Supernatant as a Nutrient Source in Microalgal Biomass Production with a Membrane Photobioreactor

Decreasing membrane fouling during Chlorella vulgaris broth filtration via membrane development and coagulant assisted filtration

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