نتایج جستجو برای: scraps
تعداد نتایج: 478 فیلتر نتایج به سال:
1. A SUMMARY OF THE GHG IMPLICATIONS OF COMPOSTING During composting, microbial decomposition aerobically transforms organic substrates into a stable, humus-like material (Brown and Subler, 2007). Although small-scale composting, such as backyard composting, occurs across the United States, WARM models composting only in central composting facilities with windrow piles because data for small-sc...
Thermal plasma vitrification is a successfully used technology to treat and recycle hazardous wastes. High plasma temperatures enable to destroy complex molecules and to encapsulate the toxic elements in a non-leaching glass or ceramic matrix, obtaining nonhazardous wastes with large volume reductions. In this work, hazardous incinerator residues (bottom and fly ashes) have been treated by mean...
In the present study, a typical flux containing 90wt% NaCl-KCl, 8wt% Na2SiF6 and 2wt% CaF2 was used to remove the inclusions from the melts of A380 and A319 aluminum alloy scraps. The effect of flux amount on refining efficiency was investigated using tensile test, reduced pressure test (RPT), metallography and SEM. The effect of flux on the 6063 wrought aluminum melts was also studied. On the ...
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