Removal color of dyes from textile industrial wastewater by sago waste as a coagulant

The aim of this study was to remove the color of dyes from textile industrial wastewater by sago waste acted as a coagulant. The low-cost, easily available and naturally prepared coagulant like sago waste was chosen to remove color of Congo Red. The experiment was carried out by using jar test experiment. Jar test was used to perform coagulation process. Factors affecting the coagulation and flocculation process, such as pH and dosage were assessed. Fourier Transform Infrared (FT-IR) was used in this study. The purpose of using FT-IR was to examine the formation dyes molecule on the surface of the sago waste before the coagulation process. Three types of coagulant were prepared; untreated sago waste, treated sago waste with sodium hydroxide and treated sago waste with sodium hypochlorite. Next, for data analysis, the dyes percentage removal was measured by using UV-visible spectrophotometer. The optimum condition of each parameter was analyzed. The data was tabulated and discussed