Spirulina platensis
strain BP immobilized on fibrous polyester mat was applied for nitrogen removal
from simulated shrimp pond water. Different
S. platensis
mass on mat was built up during immobilizing
process by varying the amount of batch fed suspended
S. platensis
cells. During immobilization, 0.2 OD
560
S. platensis
was replenished to reactor and chlorophyll-a in the solution was monitored. The immobilized
S. platensis
mass was 63, 49 and 19 g dw-
S
. platensis/m
2
for Sp V-1, Sp IV-1 and Sp II-1 mat reactors adding
five, four and two times of 0.2 OD
560
S. platensis
respectively. In accordance with statistic, the results of
nitrogen removal tests by applying those immobilized mats in circulated batch system reactors loaded with
1.94 gN/m
2
-d showed that there were significant differences on ammonia removal among the different initial
S. platensis
mass on mats (ANOVA;
P