南宁城市污泥处理处置工艺路线分析探讨

Analysis the process route and disposal way of wastewater sludge in Nanning City

南宁市污水处理厂污泥量逐年增加,通过数据分析各厂污泥性质,可知该市污泥有机质较低,重金属含量少,发热量不高,营养成分不高。确定污泥处理处置的两条工艺路线:生物沥浸+板框脱水+好氧发酵+土地利用和生物沥浸+板框脱水+水泥窑协同处置。

The sludge of the wastewater treatment plants is increasing in Nanning City. The organic matter, heavy metals, calorific value and nutrients are low through data analysis. According to the characteristics of the sludge, this paper provides two suitable way for sludge disposal, one is bioleaching-plate-frame pressure filtration-aerobic fermentation-land application, and the other is bioleaching-plate-frame pressure filtration-combined process cement kiln and incineration.