Studies on Bioremediation of Toxic Heavy Metals in Agricultural Soil Ecosystem

Abstract

The extent of the current work dealt with bioremediation of toxic heavy metals in agricultural soil ecosystem. The first chapter included biological and chemical characterization of three soil ecosystems irrigated with sole or mixed diversified low quality water, i.e., sewage effluent, drainage water or industrial effluent for varied extended periods. The first sample is a surface sandy soil irrigated with sewage effluent for more than 35 year from El-Lebeny drain collected from Abou-Rawash (Giza Governorate), the second one is an alluvial soil irrigated with mixed sewage, industrial effluents and agricultural drainage for more than 80 year from Branch 62 - main canal pronged from Kitchener drain collected from Kafr-el-Sheikh Governorate and the third one is surface alluvial soil irrigated with sewage effluent for more than 30 year collected from Kafr-Shokr (Qalubya governorate). Two samples were collected from each site, i.e., cultivated with corn or un-cultivated, all types of irrigation water were also sampled.