The effectiveness of Oscillatoria limnetica for the removal of water high salinity under various environmental conditions

Mohammed Salam Al-Maliki; Ithar Kamil Al-Mayaly

doi:10.53730/ijhs.v6nS5.11905

Authors

Mohammed Salam Al-Maliki College of Science, University of Baghdad, Baghdad, Iraq
Ithar Kamil Al-Mayaly College of Science, University of Baghdad, Baghdad, Iraq

Keywords:

Adsorption, Cyanophyta, Oscillatoria, Phytoremediation, Salinity

Abstract

Oscillatoria limnetica alga was tested for its extent to control water`s high salinity stresses, through sets of laboratory batch experiments during five initial salinity concentrations; 10ppt , 15ppt, 25ppt, 30ppt, and 35ppt were applied to aqueous solution under different operational conditions; water temperature and pH. Three water temperatures; 25, 30, and 35 ᵒC, and three pH values; 5, 7, and 9, were applied interchangeably to operate for 10 successive days, at the end of each the optical density and salinity concentration were measured via the spectrophotometer and the Flame atomizer spectrophotometer successively. The main result was the gain of very good performance in the removal of salinity stress under almost all tested operational conditions. The salinity removal efficiencies ranged from 80-94%, especially at the temperature of 30 C and pH value of 7. That in addition to a very good durability to withstand high salinity stresses in almost all experimental conditions during which. Also, it was found that the salinity removal efficiency increases as the initial salinity concentration increase for almost all tested sets.

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