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In page Photobioreactor:
"The discussion around microalgae and their potentials in carbon dioxide sequestration and biofuel production has caused high pressure on developers and manufacturers of photobioreactors.[1] Today, none of the mentioned systems is able to produce phototrophic microalgae biomass at a price which is able to compete with crude oil[citation needed]. New approaches test e.g. dripping methods to produce ultra-thin layers for maximal growth with application of flue gas and waste water. Further on, much research is done worldwide on genetically modified and optimized microalgae.
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