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污泥堆肥处理被认为是适合中国国情的污泥处理处置方式,但其产物的出路是污泥堆肥产业化过程的关键问题。通过总结和分析国内外大量的研究,发现污泥堆肥产物含有丰富的有机质和氮、磷等营养元素,具有潜在的肥力;农业利用对污泥堆肥产物具有潜在需求;污泥堆肥处理后,重金属活性降低,有机污染物得到不同程度的降解,达到农用目的。因此,污泥堆肥产物在农业利用中具有广阔的应用前景和市场。
Sludge compost treatment is considered to be suitable for the treatment of sludge in China. However, the outlet of its products is a key issue in industrialization of sludge composting. Through summarizing and analyzing a large number of researches at home and abroad, it is found that the sludge compost product is rich in organic matter and nutrients such as nitrogen and phosphorus, and has potential fertility. There is potential demand for sludge compost product by agricultural utilization. After sludge compost treatment, heavy metals Reduce activity, organic pollutants are different degrees of degradation, to agricultural purposes. Therefore, sludge composting products have broad application prospects and markets in agricultural utilization.