CHAPTER 1INTRODUCTION1.1 Background StudyIn this era of globalization, industrial waste disposal is a big problem for the world's population. Effluents from industries such as the textile industry will cause water pollution, continuously spreading serious diseases. The World Bank estimates that between 17 and 20 percent of industrial water pollution comes from the dyeing and processing of textiles. The textile industry and its wastewater containing dyes are not only undesirable for color, but the decomposition of the products also releases toxic, carcinogenic and mutagenic substances that threaten human health (Suteu D. et al., 2010). Zaharia Carmen and Suteu Daniela (2012) state that only 10 to 25% of textile dyes lost during the dyeing process, while a total of 2 to 20% will be discharged directly as aqueous effluent into different components of the environment. There are several methods used to separate or eliminate industrial wastewater from bodies of water. They are adsorption, chemical precipitation, coagulation-flocculation, ion exchange and many others. Adsorption is one of the effective methods with potential application in textile wastewater treatment. In this method, soluble organic dyes from wastewater will be attached to the highly porous surface of the solid. Activated carbon, peat, coal ash, wood chips or wood sawdust can be used as an adsorbent in the adsorption process, but activated carbon is believed to have the best efficiency (Zahari C. and Suteu D., 2012). Although activated carbon has the best efficiency, it is expensive and associated with an intensive regeneration process. This difficulty has led to research into the use of cheap and efficient alternative materials such as rice husk, bamboo, sugarcane bagasse, ...... half of paper ...... iments which will be conducted thereafter, the following results are predictable:i. Activated carbon will be produced from sugarcane bagasse by optimizing the acid used in the impregnated method, in terms of acid type and concentration. As in this study, sulfuric acid and phosphoric acid will be used successively with a concentration of 4%, 10%, 20%, 30% and 40%. ii. From the study of the properties, the best activated carbon produced will be chosen as the best impregnation method (in terms of acid optimization). iii. From the batch experiment, the best condition for activated carbon to remove textile wastewater will be chosen. The best condition for removing contaminants in wastewater will be known in terms of contact time, dosage and granular size of the activated carbon used. iv. It is foreseeable that the activated carbon produced can treat textile wastewater and reduce water pollution worldwide.