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Abstract Heavy metals from industrial processes are of special concern because they produced to water and accusing chronic poisoning in aquatic animal. Heavy metals can damage the cell membranes, alter enzymes specificity, disrupt cellular functions and damage the structure of the DNA. The concentration of copper, lead and cadmium in the wastewater must be below that (1, 0.1 and 0.001) mg/ L, respectively. Living and deeding biomass of actinomycetes used in bioremediation heavy metals. The cell wall of actinomycetes species generally contains three components, namely peptidoglycan, teichoic acid and surface protein, which could play an important role in the biosorption of metal ions. Dead biomass more advantages than living biomass. These advantages include their ease of treatment and no metal toxicity that can result in cell death in live cells. Additionally, the dead biomass don’t required supplementation with nutrients which can increase the biological and chemical oxygen demands on the treated. The following results were obtained from our results. 1- Sixty-six of different morphologically actinomycetes were isolated from collected wastewater (27 isolates), sediment (14 isolates) and soil samples (25 isolates) from Egypt 2- Living and dead biomass of actinomycetes were screened for biosorption of Cu2+, Pb2+ and Cd2+ singly from aqueous solution. The data revealed that the isolates kw 9, kw 14, kw 27, kw 28, kw 36, kw 40, kw 42, kw 49, kw 52, kw 58, kw 66, were recorded the highest biosorption percentage above 70% for heavy metals ions singly (one at least). |