大港污水污泥用于绿地的可行性研究

对大港污水处理厂污泥的含水率、pH、水溶性盐分总量、有机质、总氮、总磷、总钾等肥效指标进行分析,将测得的结果与其它地区污水污泥、常用农家肥进行比较。结果表明,大港污水污泥可以直接作为绿地用肥。并以氮素为限值计算大港地区的污泥施用量。

Feasibility of Sewage Sludge in Dagang Used in Garden Greening

Fertilizing indexes of sludge from Dagang Sewage Plant were analyzed, such as rate of water content, pH, conductivity, organic matter, total nitrogen, total phosphorus, and total kalium. The result was compared with sewage sludge from other areas and usual farmyard manure. The conclusion indicated that the sewage sludge from Dagang can be used in garden greening directly. At last, amount of sludge employed in Dagang area by the limit of nitrogen was calculated.