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粉煤灰是一种可利用的资源,在我国闲置贮存量巨大。介绍了粉煤灰的理化性质,综述了粉煤灰在土壤改良中的作用,如改善土壤物理性质、增加土壤营养成分、影响土壤生物活性、治理盐碱地以及修复治理重金属污染。粉煤灰也可用于土地整治工程,改变土壤结构,增加土壤的生产力,是高质量完成土地整治工程的有力保障。但是,粉煤灰大量使用前,仍需重视其性质的检测及预处理。
Fly ash is an available resource that has a huge amount of idle storage in our country. The physical and chemical properties of fly ash were introduced. The role of fly ash in soil improvement was reviewed. For example, the physical properties of soil were improved, the nutrients in soil were increased, the biological activity of soil was affected, saline - alkali soil was treated, and heavy metal pollution was rehabilitated. Fly ash can also be used for land remediation projects, to change the soil structure, increase soil productivity, high-quality land consolidation project to complete a strong guarantee. However, heavy use of fly ash still needs to pay attention to the detection and pretreatment of its nature.