Abstract：
:This work aimed to develop a rotating algal biofilm (RAB) cultivation system that can be widely adopted by microalgae producers for easy biomass harvest. Algal cells were grown on the surface of a material rotating between nutrient-rich liquid and CO2-rich gaseous phase. Scrapping biomass from the attached surface avoided the expensive harvest operations such as centrifugation. Among various attachment materials, cotton sheet resulted in best algal growth, durability, and cost effectiveness. A lab-scale RAB system was further optimized with harvest frequency, rotation speed, and CO2 levels. The algal biomass from the RAB system had a similar water content as that in centrifuged biomass. An open pond raceway retrofitted with a pilot-scale RAB system resulted in a much higher biomass productivity when compared to a control open pond. Collectively, the research shows that the RAB system is an efficient algal culture system for easy biomass harvest with enhanced biomass productivity.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Gross M,Henry W,Michael C,Wen Zdoi
10.1016/j.biortech.2013.10.016subject
Has Abstractpub_date
2013-12-01 00:00:00pages
195-201eissn
0960-8524issn
1873-2976pii
S0960-8524(13)01596-4journal_volume
150pub_type
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