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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
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A.S. Dwaish, D.Y. Mohammed, A.M. Jawad and A.A.AL-kubaicy
Tigris river ,Baghdad city,heavy metals ,chlorella vulgaris
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 .
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