一种新型污泥调理剂的使用效果综述

Application Effect Summary of a New Sludge Conditioner

在目前常用的几种污泥脱水方法中,深度脱水多采用板框压滤,而板框压滤脱水常规的调理剂为生石灰和铁盐,调理过程就是破坏污泥分子的细胞壁,释放污泥中的结合水和吸附水及细胞内水,降低污泥黏性,从而提高污泥脱水效果。所以污泥调理剂的选型与投加方式直接影响污泥深度脱水的效果,是板框压滤脱水的关键因素。

Plate-and-frame f ilter press is a common method of deep dehydration,in which quicklime and iron salts are usually usedas conditioners.The conditioning process is to destroy the cell wall of sludge,release the bound water,adsorbed water and intracellular water in the sludge,and reduce the viscosity of the sludge.Thereby,the sludge dehydration effect is improved.Hence,the selection and dosing methods of sludge conditioner directly affect the effect of deep sludge dehydration,which arethe key factors for plate-and-frame f ilter press dehydration.