At present, industry or manufacturing color dye waste water discharge into the rivers many, most find that these are not water treated before draining. It causes the water most rotten. Affect water quality and ecosystems in rivers, so has the use of cassava in the experiment. The experimental results can be analyzed to absorb color application in wastewater treatment systems used in the industry. So I want this experiment this to eliminate the color of the water wastewater before releasing it into the environment.