Use of fly ash in reducing toxicity of and heavy metals in wastewater effluent

摘要

Fly ash is one of the most abundant waste materials; its major components make it a potential agent of the adsorption o heavy metal contaminants in water and wastewaters. The objective of this study was it measure the changes in toxicity of and heavy metals in a municipal (Salisbury, MD) wastewater treatment plant (SWTP) effluent on treatment with fly ash. The effluent from SWTP after treatment with fly ash for 4 h showed a significant reduction in toxicity, Cu and Pb, And PO~3-_4 and No~-_3 contents.