Bellona nuclear digest. March 2024
A survey of events in the field of nuclear and radiation safety relating to Russia and Ukraine.
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Using algae to capture carbon dioxide in plastic membranes (‘BAGS’)
Publish date: September 21, 2011
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Using algae to capture carbon dioxide in plastic membranes (‘BAGS’)
An Australian company (MBD Energy) is developing a technology based on Biological Algal Growth System.
Not only the abbreviation of the name is ‘BAGS’ but the system itself is based on plastic bags – synthesising captured CO2 emissions, on a continuous basis, in a fully enclosed proprietary plastic membrane. The company states that the technology is relatively low-cost to produce, deploy and operate. The BAGS membranes are supposed to provide the algae with a controlled environment in which they should double in mass every 24 to 48 hours.
The rapid growth of algae is enhanced by a constant flow of captured NOx and SOx which are dissolved into nutrient-rich waste water that slowly circulates through the membranes. The algae biomass is dewatered and processed with intended end use as bio fuels (including oils and briquettes), nutrition or fertiliser production.
The company is currently trialling the technology, claiming that the benefits are much broader than carbon dioxide capture and re-use.
Read more: http://www.mbdenergy.com/bags_system.php
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