NH concentrations in the produced gas were 3
measured using detector tubes (Gastec, Japan), and
CH was analyzed using GC-FID (GC-14B, 4
Shimadzu, Japan).
Toxicity Characteristic Leaching Procedure
(TCLP) of the U.S. EPA SW 846 method 1311 [16]
was followed for assessing the metal leaching potency
of the stabilized dross. The method is a soil sample
extraction one and was employed in this study to
simulate leaching of metals through a landfill.