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Objectives: Using bio-sorbents is regarded as one of the effective methods to remove heavy metals. Therefore, this study aimed to investigate Cu2+ adsorption and it’s effecting on growth of Phormodium formosum and Oscillatoria simplicissima. Methods/Statistical Analysis: Two marine cyanobacteria isolates P. formosum and O. simplicissima were tested for tolerance and removal of copper supplemental individual as a single metal at different contact times (0, ½, 1½, 3 and 24h), different temperatures (20, 30, 35 and 40 °C), different pH (4, 5, 6, 7, 8) and different concentration (5, 10, 20, 30, 40 and 50 mg/L) under controlled laboratory conditions. Findings: The obtained results showed that lower concentration of Cu2+ (5, 10 and 20 mg/L) enhanced the algal growth (chlorophyll a), elevated concentration (30, 40 and 50 mg/L) were inhibitory to growth in case of two algal. The bioremoval of heavy metal ions (Cu2+) by P. formosum and O. simplicissima from aqueous solution showed that the highest percentage of metal bioremoval occurred at 24 h of contact time recording 90% and 80% respectively. The maximum biosorption was observed at optimal conditions including 30°C, pH of 7 and 10 mg/L at 24h of contact time. Application/Improvements: The study findings revealed that P. formosumalgae can be effectively in order to adsorb Cu2+ due to its high efficiency of Cu2+ adsorption. Keyword: Bioremoval, Copper, Marine Blue Green Algae, Phormodium formosum

Bioremoval of Copper by Marine Blue Green AlgaePhormodium formosumandOscillatoria simplicissima