Bioremediation of Copper with Endophytic Bacteria Bacillus sp. and Streptomyces griseus

Abstract

In this study, the acute toxic effect of copper on organisms was determined with the use of two bacterial species Bacillus sp. and Streptomyces griseus. After 4 days of acute toxicity test, changes in metal and bacteria concentration in water, inhibition (%), bioaccumulation rate and bioconcentration factor were evaluated in terms of toxicology. Cell weights decreased and inhibition rates (%) increased with increasing metal concentrations after a certain level (10 mg L -1 Cu). With increasing metal concentrations from 5 to 25 mg L-1 , % biosorption decreased from 35.94 to 20.73 for S. griseus and from 56.36 to 34.47 for Bacillus sp. The bioaccumulation quantities increased with increasing metal concentrations for both species. Bacillus sp. and S. griseus are suitable candidates for bioremediation of copper ions from the contaminated environment.

Utilizing sustainable hemp biomass as an eco-friendly for potentially toxic elements removal from water

“…In recent years, potentially toxic elements (PTEs) in the aquatic environment have attracted attention worldwide due to their properties, such as persistence, toxicity, bioaccumulation, and non-biodegradability [1][2][3]. In fact, PTEs are among the most widely released environmental pollutants, affecting the environment and human health.…”