ABSTRACT
One genus of algae Nostoclinkiaas dried and livingwas used in reducingthe
concentration of direct blue and reactive red dyes and color in textile factories. The
proper concentration 1 gm/L was prepared for each dye, however 0.005. 0.01, 0.03g/L
were prepared from this concentration and used for 4 days of treatment. The results
confirmed that the efficiency of 1g from dried alga in reducing concentrations of dyes
increased during period of treatment which recorded removal percent for direct blue
at 0.005. 0.01, 0.03g/L concentrations as 83.11%, 73.05%, 63.6% after 4 days of
treatment,while the removal percent for the same dye with 0.5 g of alga
was57.44%,71.57% ،56.23% respectively. Living filamentous alga was recorded
higher removal percent for reactive red at 0.005, 0.01, 0.03g/L concentration after 96
hrfrom treatment 72.88%, 61.63%, 34.75% respectively. The results illustrate
increasing in algal biomass with increasing period of treatment and algal biomass in
treatment, algal biomass of 1 g after 96 hr from treatment with direct blue dye were
recorded 2.682,2.564,2.33g while algal biomass at 0.5 g after the same period of
treatment 1.531, 1.395, 1.274grespectively. Also, the living alga recorded increasing in
biomass 47.73, 43.73, 34.97mg after 96hr from treatment with reactive red |