Co-pyrolytic mechanisms, kinetics, emissions and products of biomass and sewage sludge in N2, CO2 and mixed atmospheres

Pyrolysis dynamics of two medical plastic wastes: Drivers, behaviors, evolved gases, reaction mechanisms, and pathways

“…Their S and N contents close to zero indicated that their thermal treatment would not produce nitrides and sulfides. The higher heating value of SY and MB (33.06 and 45.51 MJ/kg, respectively) were higher than that of coal (28.87 MJ/kg) ( Chen et al, 2019 ), bamboo residues (17.67–18.23 MJ/kg) ( Hu et al, 2019 ), spent potlining (22.21 MJ/kg), textile dyeing sludge (6.95 MJ/kg) ( Sun et al, 2019 ), and coffee grounds (23.64 MJ/kg) ( Chen et al, 2020 ). Their calorific values were higher than those of the other plastics such as polyvinyl chloride (19.02 MJ/kg) ( Lee et al, 2018 ), polystyrene (42.3 MJ/kg) ( Muneer et al, 2019 ), and polyethylene terephthalate (23.97 MJ/kg) ( Singh et al, 2019 ).…”

Carbon quantum dots derived from the extracellular polymeric substance of anaerobic ammonium oxidation granular sludge for detection of trace Mn(vii) and Cr(vi)

“…The broad bands at 3391 cm À1 , 3257 cm À1 , and 2921 cm À1 were attributed to the stretching vibration of the -OH, N-H, and C-H groups, respectively. [24][25][26] The strong peaks at 1663 cm À1 was owing to the stretching vibration of the C]O bond, while the sharp peaks at 1553 cm À1 was owing to the bending vibration of the N-H bond, 4 indicating the nitrogen doped type of CQDs. The peak at 1388 cm À1 was due to the bending vibration of the -OH bond, while the peak at 1270 cm À1 was indicative of the C-N bond.…”

Study on Denitration Performance of Solid Waste Blast Furnace Slag Catalysts under Different Preparation Processes

“… 35 , 36 The mixing method is obtained by mixing, shaping, drying, roasting, and reducing the active component and fine material carrier through mechanical mixing. 37 , 38 The ion exchange method has the characteristics of high dispersion and uniform distribution, and is often used in organic catalytic reactions. 39 In the melting method, the active component is melted at a high temperature, and the degree of dispersion of the mixer far exceeds that of the general mixture.…”