دراسة تأثير بعض العوامل في امتزاز الكروم بأستخدام مسحوق اوراق زهرة النيل

الملخص EN

The efficiency of dried powder of water hyacinth leaves to adsorb some heavy metals such as Chromium, Cadmium, Zinc and Cobalt on the surface of dried leaves particles from industrial polluted water was investigated.

Also the study included detection of metal which has the most removing capacity, the results of the effect of some factors on removing process such as pH, contact time and the adsorption dose showed that the Chromium was most removing metal among the other heavy metals by the water hyacinth dried leaves (1gm.

) at pH 7 for one hour.

The effect of different factors on the removing of hexavalent chromium was studied and the results revealed that the dried powder leaves had high efficiency to remove the metal with maximum removing percent (82%) at pH 2 and contact time 120 min.

The bioadsorption by water hyacinth dried leaves is a new technique that can be used for removing heavy metals or pollutants from industrial water