PAMAM改性粉煤灰处理麦草碱法制浆中段废水的试验

The treatment of washing & bleaching wastewater from wheat straw alkaline pulping with PAMAM modified fly ash

介绍了聚酰胺-胺(4.0GPAMAM)树形分子改性粉煤灰的制备,并用制备的改性粉煤灰处理麦草碱法制浆中段废水。研究了改性粉煤灰的投加量、作用时间、溶液的酸度、作用温度等对废水SS、COD和色度去除率的影响。研究表明,在最佳的试验条件下,废水的色度去除率可达93.8%,SS和COD去除率可分别达到88.2%和90.3%。

The preparation of polyamidoamine dendrimer（4.0G PAMAM） modified fly ash was introduced. Bleaching wastewater treatment experiment with the prepared PAMAM was made. The influence of PAMAM dosage, treatment time, acidity of the solution, treatment temperature and so on, on the removal rate of SS, COD and chroma were studied. The results show that the removal rate of chroma, SS and COD can reach to 93.8%, 88.2% and 90.3%, respectively, under the proper treatment conditions.