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ABSTRACT
An experiment was conducted to investigate the effect of water soluble fractions (WSF) of kerosene on two microalgae, Chlorella vulgaris and Selenastrum capricornutum. This study was carried out in the laboratory for fourteen (14) days with varying concentrations of WSF of kerosene which include 0%(control), 5%, 10%, 20%, 30%, 40% and 50% concentrations respectively. The growth responses were measured using a visible spectrophotometer at 750nm. Using standard methods, the prepared samples were periodically analyzed every two (2) days for physiochemical parameters such as pH, temperature, dissolved oxygen, total organic carbon (TOC), chemical oxygen demand (COD) and total dissolved solids (TDS). Duncan Multiple Replication (DMR) was done using Microsoft Excel 2010 and Inferential One-way analysis of variance (ANOVA) tests were also carried out. The results obtained revealed that for Chlorella vulgaris, there was maximum growth in the control treatment followed by the 30% treatment while for Selenastrum capricornutum, 50% treatment had the highest growth. There was no significant differences in the pH for both microalgae but an increase in TDS, conductivity and turbidity was observed. The study revealed that Chlorella vulgaris and Selenastrum capricornutum can be used in phycoremediation of kerosene polluted water.
