摘要
利用聚合硅酸硫酸铝对造纸中段废水进行了处理。结果表明 ,其浊度、色度和COD去除率均高于硫酸铝 。
The bleaching effluent of wheat straw pulp was treated with polyaluminum silicate sulfate (PASS).The results showed that those higher removal rates of turbidity,color and COD could be obtained with PASS at proper pH and basicity than with alum,but additional biological treatment was still necessary for the further removal of COD.
关键词
聚合硅酸硫酸铝
混凝
造纸中段废水
废水处理
polyaluminum silicate sulfate
coagulation
screening room & bleaching effluent
