نقش گياهان در پالايش خاك هاي آلوده به هيدروكربن هاي نفتي ( گازوئيل)

Phytoreme Diation of Diesel Fuel in Contaminated Soil

The oil pollution is all unavoidable result or rapid increase in world population ant! indusuiulization. lbe objective otrcscarch was to study barley, alfalfa and clover ability in reducing the urnount of diesel fuel in contaminated soils. Barley. alfalfa and clover \\ʹi.TO: planted in pots .... uh contaminated soils by diesel fuel ut 0,25, 100,500,3000 and 40000 ppm (rug-kg) concentration and one lrculm-ʹ:f!l was to control without any plant. Aller J 20 days the concentration or residual pollutant were measured by Gas Chromatograph. Based on the results obtained, the average percentage of decrease in the level of the pollutant was 86%, for harley. ~I~ʹo tor alfulfu and 80% tor clover and tor control pot (without plant) was 75;);;). Basically, the primary amounts of pollutant affect plant ability to decrease diesel fulʹ! contamination. Il was distinguished lor dry mass production. In general, barley W"lS more effective in phytoremediation than alfalfa and clover, due to its scattering root system.