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Chitosan is an extremely valuable polysaccharide and usually obtained from crustacean byproduct. In this work, a new non‐animal source chitosan is obtained from fungal precursors (Ganoderma lucidum spore powders, GLSP) using ultrasound‐assisted deacetylation (USAD), and the effects of processing parameters (irradiation time, solid‐to‐liquid ratio, NaOH concentration, and irradiation power) on the...
In this study, solvent extraction was used to recover oil from petrochemical sludge. Three solvents were chosen to mix with petrochemical sludge to ensure adequate miscibility of crude oil in solvent under an appropriate condition. The petrochemical sludge, crude oil sample and residual petrochemical sludge were analyzed by thermogravimetric analysis (TGA). The experiments were performed at three...
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