两种高分子絮凝剂处理污水厂污泥的探讨

A report of two kinds of high polymer flocculants in the treatment of sludge from waste water plant

对污水处理厂所产生的污泥的脱水前添加可溶性甲壳质或聚丙烯酰胺进行沉降和过滤实验 ,结果表明 :能大大提高沉降速度和过滤速度 ,滤液的色度明显降低。特别是在污泥处理中末曾使用过可溶性甲壳质的污泥脱色效果尤其明显 。

The experiments of subsidence and filtration were carried out by added soluble chitin or polyacrylamide before dewatering of the sludge generated from waste water treatment plant.The results showed that the speeds of subsidence and filtration greatly increased and the chroma of filtrate obviously decreased.Especially for the un used soluble chitin,the discoloration effect was remarkably obvious.It is suggested that the choice of the most suitable flocculant and its addition level according to the nature of the sludge can improve the production ability of dewatering devices.