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The influence of sewage sludge treatment on its pyrolysis and combustion and the N, S and Cl emissions was studied by thermogravimetry-mass spectrometry in the range 25–800 °C. Two types of sludge were used (L and F). L underwent anaerobic digestion and was treated with organic polyelectrolyte, while F was treated with FeCl 3 and lime. The treatment with inorganic additives had a notable influence...
Blast furnace (BF) slag, a byproduct of steelmaking industry, contains a large amount of sensible heat and is composed of some metal oxides, which exhibits preferable catalytic performance in improving tar cracking and CnHm reforming. This paper presents a heat recovery system from the heat of BF slag, which generates hydrogen-rich gas via the endothermic reactions of sludge pyrolysis. The effects...
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