N. Mallick et Lc. Rai, REMOVAL OF INORGANIC-IONS FROM WASTEWATERS BY IMMOBILIZED MICROALGAE, World journal of microbiology & biotechnology, 10(4), 1994, pp. 439-443
Anabaena doliolum and Chlorella vulgaris immobilized on chitosan were
more efficient at removing NO3-, NO2-, PO43- and Cr2O72- from wastewat
ers than cells immobilized on agar, alginate, carrageenan or even free
cells. Carrageenan-immobilized cells, however, were better at removin
g NH4+ and Ni2+. The PO43--uptake capacity was significantly increased
in cells starved of PO43- for 24 h. Agar-immobilized cells, though ha
ving good metal and nutrient uptake efficiency, had only a slow growth
rate. Chitosan is recommended as an algal support for wastewater deto
xification.