The experiment was in progress in dyadic foam of intermittence flotation tower,to the positive ion type,the negative ion type,type and amphiprotic type,etc.

• 结果:泡沫浮选法去除废水中铬离子的表面活性剂,阳离子型和非离子型表面活性剂效果最差,阴离子表面活性剂效果最好。