Examination and chemical treatment of industrial solid wastes for safe land application. I. Evaluation of toxic elements present in solid wastes from a fertilizer and chemical plant.
Four solid wastes from a fertilizer/chemical plant located in the area of Thessaloniki are examined using the U.S. Environmental Protection Agency's (EPA) extraction procedure for toxicity in order to determine their content of toxic elements. Analyses of the extracts indicate that one of the samples generates arsenic at a concentration which exceeds the EPA criterion level for this element by nearly 50 times. Another sample is characterised by pH values that are below the EPA minimum values; however, the toxic element concentration does not exceed EPA limits. The extractability of toxic elements from the solid wastes using various extracting solutions is also examined in order to determine the chemical conditions under which the toxic compounds are soluble.
Katzika
A
A
Department of Chemistry, Aristotelian University of Thessaloniki, Greece.
Kouimtzis
T
T
D006115:Greece; D007220:Industrial Waste / Q000032:analysis*; D008670:Metals / Q000032:analysis*; D012996:Solutions; D013054:Spectrophotometry, Atomic
D007220:Industrial Waste; D008670:Metals; D012996:Solutions