物理与化学联用技术调理改善污泥脱水性能研究进展

Progress on the physical and chemical control combination to improve sludgedewatering

污泥处理与处置问题是世界性难题,而在污泥最终处置或再利用前对污泥进行调理非常关键。物理调理和化学调理是较为普遍的手段,但单独使用其中一种方法不能获得良好的效果,使用物理和化学调理联用对改善污泥脱水性能有重要现实应用意义。作者综述了超声波结合化学调理、微波结合化学调理、电化学与化学调理、冷融与化学调理四种联用技术在污泥调理应用方面的研究进展。

Treatment and disposal of sludge are the present challenges of the world.The sludge conditioning is an important part for anysludge dewatering procedure.The most common technology is physical and chemical conditioning,but if only one method is used,therewill be some shortcomings.Using physical and chemical control combination to improve sludge dewatering properties has very importantsignificance in practical application.This paper describes the research progress on the physical and chemical control combinationtechnology to improve sludge dewatering,such as sonication-chemical combination technology,microwave-chemical combinationtechnology,electrochemical-chemical combination technology,and freeze/thawing-chemical combination technology.