【摘 要】
：
Water quenching is a fundamental process of the wet discharge system widely used in municipal solid waste incineration(MSWI)plant.This study,representative
【机 构】
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Graduate School of Engineering,Department of Urban and Environmental Engineering,Kyushu University,J
【出 处】
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The 2nd Symposium of International Waste Working Group Asian
论文部分内容阅读
Water quenching is a fundamental process of the wet discharge system widely used in municipal solid waste incineration(MSWI)plant.This study,representative samples from two incineration plant(N and K)with the different quenching system; drag chain conveyor tank and hydraulic ram discharger were investigated.Unquenched and freshly quenched bottom ashes were sampled from the same combustion line of each incineration.The particle size distribution analysis,thin section analysis,intact particle analysis,specific surface area analysis,pH and bulk chemical composition analysis,and mineralogical analysis were conducted to evaluate the impacts of water quenching on the characterization of bottom ash products.The result showed that water quenching was considerable influence on the bottom ash characterization by changing particle size,increasing specific surface area,changing its morphology by forming the quench product,reducing pH,altering the chemical composition,and enhancing portlandite,hydrocalumite and Friedel's salt formation.
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