The amount of biomass reaches the normal range (100-260 m g/L) within a short period (2-4 days). However, the suitable detention time that gives the maximum Chlorella sp, removal efficiency and Moina macrocopa production u,as found to be 2 days. The efficiency oChlorella sp. removal increased when the starting algal biomass concentration was increased from 100 mglL to 260 mg/L).
On the other hand, it did not change after varying the starting number of Moina macrocopa from 1,500 org./L to 3,000 org./L