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粉煤灰是火力发电厂的废渣。据有关统计资料,目前我国火电厂年排灰量近3000万吨。仅陕西省7个火电厂统计,年排灰量在100万吨以上,灰场积灰已达500万吨,占地约2000余亩。废灰渣不仅占用大量的土地,还污染环境。本试验目的是利用粉煤灰栽植小冠花,变废地为草地,发展畜牧业,保护环境。
Fly ash is the power plant waste. According to statistics, at present, China’s power plant ash discharge of nearly 30 million tons. Only seven coal-fired power plants in Shaanxi Province statistics, the annual discharge of ash in more than 1 million tons, gray ash deposition has reached 500 million tons, covering about 2,000 acres. Waste ash not only occupy a large amount of land, but also pollute the environment. The purpose of this experiment is the use of fly ash to grow small crown flowers, waste land for grassland, the development of animal husbandry, environmental protection.