High Density polyethylene (HDPE)
High Density Polypropylene is used in bag photobioreactors to overcome the problems in using LDPE for algal cultivation.
Features & Benefits
HDPE is the most promising plastic used for algal cultivation since it is cheap and commercially viable
HDPE would cost approximately only one-third that of the current plastic materials used
The HDPE employed reactors are found to produce algae with oil content 1% higher than that of the reinforced LDPE films.
The opaqueness of HDPE help prevent photooxidative damage or photoinhibition
It is also less prone to biofouling (build-up of layer of algae that blocks some of the sunlight from getting through)
Disadvantages
HDPE is not quite as good as LDPE or the five-layer plastic as it is difficult to weld and hence show less tensile strength
About Materials in use to built closed loop reactors
Photobioreactors are of various types and each of these employs a wide variety of materials for photobioreactor construction. The materials for the construction of photobioreactors represent a significant practical issue both from the standpoint of the investment cost and biological performance. This page discusses the features and benefits along with… - view more
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