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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Effect of calcium magnesium acetate on the forming property and fractal dimension of sludge pore structure during combustion
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Effect of calcium magnesium acetate on the forming property and fractal dimension of sludge pore structure during combustion

机译:乙酸钙镁对燃烧过程中污泥孔隙结构的形成特性和分形维数的影响

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The changes in pore structure characteristics of sewage sludge particles under effect of calcium magnesium acetate (CMA) during combustion were investigated, the samples were characterized by N-2 isothermal absorption method, and the data were used to analyze the fractal properties of the obtained samples. Results show that reaction time and the mole ratio of calcium to sulfur (Ca/S ratio) have notable impact on the pore structure and morphology of solid sample. The Brunauer-Emmett-Tel ler (BET) specific surface area (S-BET) of sample increases with Ca/S ratio, while significant decreases with reaction time. The fractal dimension D has the similar trend with that of S-BET, indicating that the surface roughness of sludge increases under the effect of CMA adding, resulting in improved the sludge combustion and the desulfurization process. (C) 2015 Elsevier Ltd. All rights reserved.
机译:研究了燃烧过程中乙酸钙镁(CMA)作用下污泥颗粒孔结构特征的变化,采用N-2等温吸收法对样品进行了表征,并利用数据对所得样品的分形特性进行了分析。 。结果表明,反应时间和钙硫摩尔比(Ca / S比)对固体样品的孔结构和形貌有显着影响。样品的Brunauer-Emmett-Tel ler(BET)比表面积(S-BET)随着Ca / S比的增加而增加,而随着反应时间的增加而显着减少。分形维数D具有与S-BET相似的趋势,表明污泥的表面粗糙度在添加CMA的作用下增加,从而改善了污泥的燃烧和脱硫过程。 (C)2015 Elsevier Ltd.保留所有权利。

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