UPTAKE OF SOME NON-ESSENTIAL METALS BY THE ALGA CHLORELLA VULGARIS

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Seas and inland water resources are under the influence of pollution with non-essential elements (cadmium, arsenic, barium etc as a result of the rapid development of technology, increasing population density, unconscious use of water resources, discharge of industrial and domestic wastes to water resources, enrichment of aquatic ecosystems. For this reason, the treatment technique has been applied all over the world with plants, especially with algae, because of the high treatment yield and low maintenance and operation costs. This study aimed to determine the removal capacity for cadmium (Cd^2+), lead (Pb^2+), tin (Sn^4+), barium (Ba^2+) and arsenic (As^5+) heavy metals from 0,5; 1; 2,5; 5 ve 10 ppm concentration of aqueous solutions by using live C. vulgaris (chlorophyta) microalgae. Experiments were performed using synthetic single-metal solutions of Cd, Pb, Sn, Ba and As prepared from chemical reactants of analytical grade: CdSO4·8H2O, Pb(NO3)2, Sn02, Ba(NO3)2 and Na2HAsO4.7H2O, respectively. Based on the experimental data, the mean adsorption capacity of non-essential metals was determined as 254.939 mg/g for Sn, 254.536 mg/g for Pb, 238.563 mg/g for Ba, 235.288 mg/g for Cd and 227.543 mg/g for As (Sn Pb Ba Cd As) by C. vulgaris cells respectively. This study revealed that Chlorella cells were an effective adsorbent for removal of the five non-essential heavy metals ions from aqueous solutions due to its high efficiency of Sn, Pb, Ba, Cd and As adsorption.

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Non , essential elements , Water pollution , Chlorella vulgaris , Heavy metal uptake.

Celal Bayar University Journal Of Social Sciences

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Celal Bayar University Journal Of Social Sciences