论文部分内容阅读
煤灰粉是火力发电厂的废渣,可以充分利用于工、农业生产。经过农业改土的研究,证明煤灰粉是一种具有多种效能的土壤改良剂。目前世界各工业国煤灰的利用率,一般为70—80%,其中日本、丹麦的利用率最高,达96%;波兰、西德、法国、美国等为50—70%,主要是用作建筑材料,植物生长刺激剂,硅钙、硅钾肥。我国煤灰利用率不到10%。改土作用(一)煤灰中所含成分:据分析,煤灰中含氮0.056%,每100克煤灰中含水解氮为0.30毫克;含全磷1.6%,每100克煤灰中含速磷15.30毫克;含钾2.3%,含三氧化
Coal ash powder is a power plant waste, can take full advantage of industrial and agricultural production. After the study of agricultural soil improvement, it is proved that coal ash powder is a kind of soil conditioner with various efficiencies. At present, the utilization rate of coal ash in various industrial countries in the world is generally 70-80%, of which Japan and Denmark have the highest utilization rate of 96%; and Poland, West Germany, France and the United States are 50-70%, mainly used for construction Materials, plant growth stimulants, calcium silicate, silicon potash. China’s ash utilization rate of less than 10%. Soil a) The content of coal ash: According to the analysis, the content of nitrogen in coal ash is 0.056%, and the content of hydrolysable nitrogen is 0.30 mg per 100 g of coal ash; the content of total phosphorus is 1.6% Spent phosphorus 15.30 mg; 2.3% potassium, with trioxide