Abstract
Spirulina platensis can be cultivated in
wastewater to improve water quality. The heavy
metals contaminated in wastewater may be
removed as well. The objective of this study was to
study the potential of S.platensis to accumulate
some heavy metals; copper, mercury, and lead from
Zarrouk’s Medium. Results showed that
S. platensis rapidly accumulated heavy metals in
the first phase of incubation and was slow down
later. Based on Thai standard limitation of
contaminants in wastewater, S. platensis still be
alive. But, there was no growth of S. plantesis when
copper contamination was over the standard limit (1
ppm). In contrast, the maximum levels of copper
and lead contamination which allowed S. plantesis
growth were 1 and 0.2 ppm, respectively