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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 9    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 9, September 2011
Determine the uptake of lead in Chlorella vulgaris isolated from Tigris River in Baghdad city
Full Text(PDF, 3000)  PP.  
Author(s)
A.S. Dwaish, D.Y. Mohammed, A.M. Jawad and A.A.AL-kubaicy
KEYWORDS
Tigris river ,Baghdad city,heavy metals ,chlorella vulgaris
ABSTRACT
Chlorella vulgaris was isolated from Tigris River in Baghdad city. The isolated strain was identified according to its morphological characteristics as Chlorella vulgaris. The isolate was able to grow in broth medium in the presence of heavy metals. In this paper we present initially the Scanning electron microscopy techniques coupled to Energy Dispersive X-ray will be used to determine if this strain is able to uptake lead which has been detected in Tigris River as a toxic pollutant. The results indicate that Chlorella vulgaris has affinity for lead, and this technique could be very useful for the identification process in contaminated Rivers. The result shown the ability of chlorella vulgaris to uptake the lead with various concentration and it was between(2.2 ,2.7 ,3.2 ,3.7) µg /mg for living cells while it was between (2.3 ,4.1 ,6.8 ,7.9) µg /mg for non living cells in concentration of lead (3,6,12,18) µg /ml respectively, the result shown that the non-living cells have high affinity to uptake lead from the aqueous solution than the living cells .
References
[1] B.J. Alloway, D.C.Ayres, Chemical Principles of Environmental Pollution, Blackie Academic and Professional, London, 1993.

[2] L.W.H. Chua, K.H. Lam, S.P. Bi, A comparative investigation on the biosorption of lead by filamentous fungal biomass, Chemosphere 39 (1999) 2723–2736.

[3] E. Fourest, J. Roux, Heavy metal biosorption by fungal mycelial byproducts: mechanism and influence of pH, Appl. Microbiol. Biotechnol. 37 (1992) 399–403.

[4] S. Schiewer, B. Volesky, in: D.R. Lovely (Ed.), Environmental Microbe-Metal Interactions, ASM Press, Washington, DC, 2000, pp. 329–362.

[5] Z.R. Holan, B.Volesky, Biosorption of lead and nickel by biomass of marine algae, Biotechnol. Bioeng. 43 (1994) 1001–1009.

[6] Q. Yu, J.T. Matheickal, P. Kaewsarn, Heavy metal uptake capacities of common marine macroalgal biomass, Water Res. 33 (1999) 1534–1537.

[7] Patterson,G.(1983)Effect of Heavy Metals On Fresh Water Chl- orophyta. Ph.D.thesis,Univ.Durham.212pp.

[8] Duangrat. Ia, Nalin. Sa, Suthep. Sa and Aran. I(2002) Sorption of mercury, cadmium and lead by microalgae. ScienceAsia 28 (2002) : 253-261.

[9]Stein (ed.) 1973. Handbook of Phycological Methods. Culture methods and growth measurements. Cambridge University Press.

[10]Prescott,G.W.(1982)Algae Of The Western Great Lakes Area. Brown, W.M.C.com.publishers, Dubuque, Lowa, 16th printing, 977pp.

[11] V.J.P. Vilar, C.M.S. Botelho, R.A.R. Boaventura, Influence of pH, ionic strength and temperature on lead biosorption by Gelidium and agar extraction algal waste, Process Biochem. 40 (2005) 3267–3275.

[12] Y. Suzuki, T. Kametani, T. Maruyama, Removal of heavy metals from aqueous solution by nonliving Ulva seaweed as biosorbent, Water Res. 39 (9) (2005) 1803–1808.

[13] Rabsch ,U.and Elbrachter , M.(1980) Cadmium and Zinc uptake ,growth and primary production in Coscinodiscus granii culture containing low levels of cells and dissolved organic carbon. Helgol. Meeresunters.33, 79 -88.

[14] Premuzic, E.T.,LIN,M., ZHU,H.L .and GREMAN,A.M. (1991) Selectivity in metal uptake by stationary phase microbial –populations. Arch.Envir.Con.Toxicol. 20,234-240.

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