[PAHs of source separation household organic waste and composting production].

Composing treatments of source separation (SS) household bio-organic waste and straw mixed in 10:1, 16 kinds of PAHs in source separation household bio-organic waste and compost production were determined by gas chromatograph/mass spectrograph (GC-MS) according to U.S.EPA 8270 standard method.

Investigation of MSWI fly ash melting characteristic by DSC-DTA.

The melting process of MSWI (Municipal Solid Waste Incineration) fly ash has been studied by high-temperature DSC-DTA experiments. The experiments were performed at a temperature range of 20-1450 degrees C, and the considerable variables included atmosphere (O(2) and N(2)), heating rates (5 degrees C/min, 10 degrees C/min, 20 degrees C/min) and CaO addition. Three main transitions were observed during the melting process of fly ash: dehydration, polymorphic transition and fusion, occurring in the temperature range of 100-200 degrees C, 480-670 degrees C and 1101-1244 degrees C, respectively.