Phytoremediation of soil polluted with Iraqi crude oil by using of cotton plant

Remediation technology is an effective way to reduce pollutant like hydrocarbons from the environment. An experimental work was conducted at green house of University of Technology in order to investigate the impact of crude oil on the development of plant and to study and measure shoot height, germination rate and the reduction of total petroleum hydrocarbon (TPH), which result, by thy phytoremediation technology. Soil specimen were measured for TPH reduction and removal by Horiba model OCMA – 350. Five doses was used in this experiment (0% control, 10%, 30%, 50%, 75%) mg crude oil / kg soil. The maximum efficiency was obtained in treatment 50% seeded with cotton, in which cotton removed 72% of the primary TPHs from soil . Results showed that the studied plant species were promising and effective in reducing and removing TPHs from polluted fresh soil.