What kind of thing can be a floculant for harvesting microalgae, acid or alkaline or heavy metal or other something ?

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A. R. Karbassi

Dear Salim

More recently we have used electricity for flocculation of microalgae. We came up with good results. I suggest you 3 volt current for this purpose. The electrodes we used was Al ones.

karbassi

Elaya Perumal Ulagalanthaperumal

Dear salim

Sometime we used 'Alum' for harvesting microalgae.. when we use this our culture used to settle down.

Here i am providing a link which explains the efficiency of flocculation by decreasing the pH. Hope it will help you..

With regards..