A novel horizontal photobioreactor for high-density cultivation of microalgae

Dogaris, Ioannis; Welch, Michael J.; Meiser, Andreas; Walmsley, Lawrence; Philippidis, George P.

doi:10.1016/j.biortech.2015.09.030

Cited by 99 publications

(39 citation statements)

References 18 publications

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“…in our previous study (Chisti 2013). If this T-flask is scaled up, it is actually a horizontal PBR, which is a hybrid design of PBR and open pond, and shares advantages from both, including low manufacturing cost, closed system, short light path, and easy scaling-up (Dogaris et al 2015). Due to these merits, horizontal PBR has great potential application in future algae culture, and it is an excellent candidate for BICCAPS at large scale.…”

Section: Introductionmentioning

confidence: 99%

Plastic bag as horizontal photobioreactor on rocking platform driven by water power for culture of alkalihalophilic cyanobacterium

Zhu

Cheng

et al. 2017

Bioresour. Bioprocess.

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Background: Mixing in traditional algae culture system consumes intensive electricity. This should be replaced by nature force to reduce energy cost and, more importantly, to realize positive energy balance of algal biofuel production. This study aims to develop a horizontal photobioreactor, in which mixing can be provided with rocking movement driven by nature force.Results: Simple boxes were used as small-scale horizontal photobioreactors on a rocking platform for culture of alkalihalophilic Euhalothece sp. ZM001. There was no CO 2 gas bubbling since 1.0 M NaHCO 3 supplied sufficient inorganic carbon in it. Effect of culture depth, rocking cycle, and light intensity to algal biomass production, pH change, and DO accumulation were investigated in this system. Biomass concentration of 2.73 g/L was achieved in culture with 2.5 cm depth, and maximum productivity of 17.06 g/m 2 /day was obtained in culture with 10 cm depth. k L a in PBR with different culture depths and rocking cycles was measured, and it was from 0.57 to 33.49 h −1, showing great variation. To test this system at large scale, a plastic bag with a surface area of 1 m 2 was placed on a rocking platform driven by water power, and it resulted in a biomass concentration of 1.88 g/L. Conclusion: These results proved feasibility of a novel photobioreactor system driven by nature force, as well as low cost of manufacturing, and easy scaling-up.

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Section: Introductionmentioning

confidence: 99%

Plastic bag as horizontal photobioreactor on rocking platform driven by water power for culture of alkalihalophilic cyanobacterium

Zhu

Cheng

et al. 2017

Bioresour. Bioprocess.

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“…The fundamental principle for photobioreactor design is a high surface area to volume ratio in order to use light energy efficiently, and is a requirement to obtain high values of PCE (Figure 1). Higher photosynthetic efficiency can result in higher biomass productivity and concentration, but at much higher cost because of high energy use (mixing, cooling, and embodied energy) and capital cost [27]. PBR design must include a short light path, which can be obtained using different geometries and low level of liquid to minimize the energy used for mixing the culture [19].…”

Section: Photobioreactor Designmentioning

confidence: 99%

Considerations for Photobioreactor Design and Operation for Mass Cultivation of Microalgae

Cañedo¹,

Lizárraga²

2016

Algae - Organisms for Imminent Biotechnology

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Microalgae have great biotechnological potential for production of substances through photosynthesis. Light capture process and electron transportation imply energy losses due to reflection, fluorescence emission, and energy dissipation as heat, giving a maximum theoretical value of -% for microalgae energy capture efficiency and conversion to biomass. For development of full potential of microalgae the knowledge of the light capture process is required. High yields can only be obtained linking photobioreactor design with biological process taking place inside. In massive microalgae cultures, light gradients are generated and this depends on the biomass concentration, cellular types, cells sizes, and pigment content, and also on geometry, hydrodynamic, and light conditions inside the photobioreactor. In the present chapter we explain the relationship between light energy capture process and photobioreactor design and operation conditions, like turbulence, gas exchange, and nutrient requirements. Finally, the productivity and costs are discussed, and the parameters that determine the economic viability of any microalgae culture.

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“…Currently, raceway ponds and photobioreactors are the predominant means of cultivating micro‐algae . However, there are a variety of algae production systems that have been developed for moderate and hot climates (e.g., USA, Europe, China, and Australia). A recent review by Pankratz et al has identified algae cultivation technologies that may be applicable for the colder northerly regions found in Canada.…”

Section: Introductionmentioning

confidence: 99%

Development of cost models of algae production in a cold climate using different production systems

Pankratz

Oyedun

Kumar

2019

Biofuels Bioprod Bioref

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Research into the potential use of microalgae to produce biofuels is receiving significant attention. In the cold climates of countries like Canada, algae cultivation in open raceway pond (ORP) systems is limited to a short period of the year when pond surface water temperatures and ambient light conditions enable optimal culture growth. In this study we develop techno-economic assessment models to predict, evaluate, and compare the techno-economic results from three autotrophic algae cultivation scenarios to produce algae biomass. The first is a modeled ORP site located in the southern USA, which has a minimum biomass selling price (MBSP) for algae of $541 tonne −1 (T −1 ). The second scenario models an identical ORP system co-located at a site near Fort Saskatchewan, a northern city in the province of Alberta, Canada. The resulting MBSP is $1288 T −1 . A third scenario models a photobioreactor (PBR) cultivation system co-located at the same northern Alberta site and shows algae production with an MBSP of $550 T −1 . Each system is scaled to produce 2000 T day −1 ash-free dry weight (AFDE) algae biomass. The study concludes that PBR systems deployed at this scale have the potential to reduce production costs significantly ($ T −1 ) compared to similarly sited ORP systems in Canada, despite climatic factors and high initial capital costs associated with PBR construction. Furthermore, the modeled PBR system required 0.3% of the water required by the ORP cultivation platforms (153 × 10 3 versus 59 527 × 10 3 m 3 ) and 0.04% of the land (32 versus. 82 038 ha).

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A novel horizontal photobioreactor for high-density cultivation of microalgae

Cited by 99 publications

References 18 publications

Plastic bag as horizontal photobioreactor on rocking platform driven by water power for culture of alkalihalophilic cyanobacterium

Plastic bag as horizontal photobioreactor on rocking platform driven by water power for culture of alkalihalophilic cyanobacterium

Considerations for Photobioreactor Design and Operation for Mass Cultivation of Microalgae

Development of cost models of algae production in a cold climate using different production systems

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