Microalgae Granulation Correlation Between Microalgae Growth And Eps Content
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Date
2022-07-01
Authors
Halim, Farah Zahidah Abd
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Microalgae are often used in biological wastewater treatment as it can survive harsh
condition aside from being a potential alternative resource for biofuel production.
However, there are slight disadvantages to both applications as the algae culture are mostly
low in density and small in size. This results in rigid separation process which requires
greater cost in harvesting and separation processes. Nonetheless, microalgae are able to
produce extracellular polymeric substances (EPS) which is significant for the granule
formation. By supplying cultural condition that is suitable for microalgae to form granule,
the process of harvesting and separation of microalgae will be much secure as granule has
higher density and can settle down easily. In this experiment, several factors that influence
the production of extracellular polymeric substances (EPS) by microalgae are studied,
which are the availability of nutrient and growth phase of the microalgae. MLSS, EPS
content and nutrient analysis are carried out periodically throughout the experiment. There
is formation of granular sludge in microalgae found after the growth of microalgae reach
stationary phase.