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ABSTRACT
The oil palm industry is one of the major agro industries and has brought about rapid economic growth and development in the producing nations. However, it is one of the main causes of environmental pollution due to the large amounts of waste products produced during the process of extraction. A14- day laboratory experiment on the effect of palm oil mill effluent on the growth of fresh water microalgae Chlamydomonas moewusii and Chlamydomonas reinhardtii, the test microalgae were grown in seven culture vessels and in triplicates. 0%, 10%, 20%, 40%, 60%, 80%, and 100% concentrations of the palmoil mill effluent were used. Microalgae growth was assessed at 750nm on a visible spectrophotometer and every two days samples were analysed for physiochemical parameters. The analysis involved descriptive statistics, inferential procedures including one-way ANOVA test, Tukey test, and paired t- tests carried out using Microsoft Excel and SPSS 20. For Chlamydomonas moewusii, growth occurred only onday10and 14 for 0%, 10%, and 20% concentrations. Growth in other concentrations were completely inhibited. While for Chlamydomonas reinhardtii, growth occurred only on day 12 and 14 in 0%, 10%, and 20% concentrations.
