National Environmental Engineering Research Institute (NEERI), Nagpur, India.
Environ Monit Assess. 2013 Aug;185(8):6343-52. doi: 10.1007/s10661-012-3029-7. Epub 2012 Dec 20.
This paper provides a comprehensive characterization of mineral waste such as fly ash, bottom ash, slag and construction demolition (C&D) collected from four different thermal power plants, three steel plants and three C&D waste generation sites in India. To determine utilisation potential and environmental concerns, as received fly ash, bottom ash, slag and C&D waste were analysed for physico-chemical, mineralogical and morphological properties. The physico-chemical properties analysed include pH, moisture content, acid insoluble residue, loss on ignition(LOI), carbon content, fineness, chloride content, sulphate content, reactive silica content, XRF and heavy metal analysis. Morphological and mineralogical characteristics were investigated using scanning electron microscopy-energy dispersive X-ray. Particle size distribution was obtained using particle size analyser. The material analysed has different compositions and were selected with a view to determine their suitability for different applications in cement and concrete industry and for further research studies.
本文对从印度四个不同火力发电厂、三个钢铁厂和三个建筑拆除(C&D)废物产生地收集的飞灰、底灰、矿渣和 C&D 废物等矿物废物进行了全面的特性描述。为了确定利用潜力和环境问题,对收到的飞灰、底灰、矿渣和 C&D 废物进行了物理化学、矿物学和形态特性分析。分析的物理化学性质包括 pH 值、水分含量、酸不溶残渣、灼烧损失(LOI)、碳含量、细度、氯含量、硫酸盐含量、反应性二氧化硅含量、XRF 和重金属分析。使用扫描电子显微镜-能谱分析研究了形态和矿物学特征。使用粒度分析仪获得了粒度分布。所分析的材料具有不同的组成,并进行了选择,以期确定它们在水泥和混凝土行业的不同应用中的适用性,并进一步进行研究。