污泥浓缩工艺的应用现状和发展对策

Application and development trend of sludge thickening and the countermeasures

污泥浓缩工艺有重力浓缩、气浮浓缩、机械浓缩等,目前重力浓缩池仍是我国城市污水处理厂污泥浓缩的主要工艺。污泥浓缩工艺的发展趋势主要有机械浓缩和气浮浓缩工艺逐步取代重力浓缩工艺、完善浓缩脱水一体化设备、研究开发低浓度污泥浓缩工艺等。

Sludge thickening contains gravity thickening, air flotation thickening and mechanical thickening. At present, mechanical thickening is the main process in China＇ s municipal wastewater treatment plant. The development trend of sludge chanical thickening, concentration sludge thickening is to gradually replace the gravity concentration with air flotation thickening and meimprove integrated equipment for sludge thickening and sludge dewatering, and develop low thickening process.