【摘要】 我国能源结构中燃煤火电占绝对优势，粉煤灰的处置和综合利用是关系到可持续发展的重大问题。南京市利用原状粉煤灰改良农田，获得了明显的增产效果。但粉煤灰所含的有害元素在施用过程中的富集、富集部位及由此是对人体和动物健康的影响等，目前还不十分清楚。１样品与分...更多还原

【Abstract】 The experiment of fly ash utilization for soil amelioration achieved great success in Nanjing city. However, the fly ash contains five harmful elements such as cadium, mercury, arsenic, chromium and lead. How do these harmful elements affect the soil and crop? Is there existence of enrichment? These are problems people most concern. Systematic researcheon more than 54 samples show that the five harmful element contents of crop produced in farmland incurred by fly ash are lower than the level stipulated in grain Pollution Controlling Standard《GB2762 81》, and there is no problem of enrichment. As verified, there exists no linear relation between five element contents in soil and applied amount of fly ash. This snggeeis that fly ash used for soil amelioration does not pollute the soil.更多还原