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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(1): 426-435
DOI: https://doi.org/10.20546/ijcmas.2020.901.046


Biosorption of Cu2+, Pb2+ and Cd2+ from Wastewater by Dead Biomass of Streptomyces cyaneus Kw42
Maryam Mustafa Abd El-motaleb1, Sabha Mahmoud El-Sabbagh2, Walaa Salah El-din Mohamed1* and KaramRabee wafy1
1Central laboratory for environmental quality monitoring, National water research center, El-kanater El-khairia, P.M.B 13621, Egypt
2Department of Botany and Microbiology, Faculty of Sciences, University of Menoufia, Shibin El-kom, P.M.B 32511, Egypt
*Corresponding author
Abstract:

Environmental contamination by toxic heavy metals is causing a serious problem through the worldwide due to their incremented accumulation in food chain and continued persistence ecosystem. Sixty-six isolates of actinomycetes were isolated from different drains in Egypt. Eleven isolates which removed studied heavy metals (Cu2+, Pb2+ and Cd2+) singly above 70% were selected to remove metals from ternary mixtures. The biosorption by dead biomass for all isolates was higher than that by living biomass. The highest removal was recorded by Kw42 isolate. It has removed 81.7%, 88.6% and 69.2% from Cu2+, Pb2+ and Cd2+, respectively. The 16S rRNA analyses and phylogenetic data of Kw42 concluded that Kw42 is a member of streptomyces genus and itwas deposited in the Gen Bank Database under accession number MK020765. The biosorption by the dead biomass of Streptomyces cyaneus Kw42 under the optimized conditions (pH-8 at 40C for 3 h. with 0.3% biosorbent dosage) was found to be: Pb2+ (83.4%) > Cu2+ (74.5%) >Cd2+ (68.4%). By Electronic Microscope investigation the surface of dead biomass of Kw42 became smoother after binding with metal ions. Also, the Energy Dispersive X- raycharts after biosorption had copper peak at 8 Kev, lead peak at 2.8 Kev and cadmium peak at 3.1 Kev. Treatment of real wastewater by dead biomass of Streptomyces sp. Kw42 yielded complete bio-removal for all studied heavy metal ions after 120 min.


Keywords: Actinomycetes, Dead biomass,Heavy metals, Living biomass, Streptomyces, Wastewater
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How to cite this article:

Maryam Mustafa Abd El-motaleb, Sabha Mahmoud El-Sabbagh, Walaa Salah El-din Mohamed and KaramRabee wafy. 2020. Biosorption of Cu2+, Pb2+ and Cd2+ from Wastewater by Dead Biomass of Streptomyces cyaneus Kw42Int.J.Curr.Microbiol.App.Sci. 9(1): 426-435. doi: https://doi.org/10.20546/ijcmas.2020.901.046