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粉煤灰是燃煤火力发电厂排放的工业固体废渣。改革开放以来,随着火力发电厂的大量建成,粉煤灰排放量逐年递增,平均每年以18%的速度增长,1992年全国粉煤灰排放量达到7982万吨。贮存这些粉煤灰不仅要占用大量农田,而且还污染环境。因此,开发研究粉煤灰的综合利用技术是“化害为利”、“变废为宝”和节约土地、保护环境的重要措施。国内外对粉
Fly ash is industrial solid waste discharged from a coal-fired power plant. Since the reform and opening up, with the large number of coal-fired power plants built, fly ash emissions have increased year by year, with an average annual increase of 18%. In 1992, the country’s total fly ash emissions reached 79.82 million tons. The storage of these fly ash not only takes up a lot of farmland, but also pollutes the environment. Therefore, the development and research of the comprehensive utilization technology of fly ash is an important measure for “harming harm to benefit” and “turning waste into treasure”, saving land and protecting the environment. Domestic and foreign powder