الفهرس 
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Abstract
Recently, with increasing technological development, the consequences of rapid growth include environmental disturbances and pollution problems. One of the major and most important environmental problems is water pollution. One of the most disturbing problems is dye pollution in wastewater. Annually, it is estimated that more than 700,000–1,000,000 dyes are produced worldwide, with textile, paper, rubber, plastic, pharmaceutical, food-processing, and cosmetic industries being the main users of these pigments in their processes. Cationic dyes (all base dyes), anionic dyes (direct, acidic and reactive dyes), and non-ionic dyes (disperse dyes) are the three types of dyes used in industry. Cationic dyes are more hazardous than other sorts, although they are commonly utilized in the industry. Cationic dyes such as Crystal violet (CV) and methylene blue (MB), these dyes are non-biodegradable, toxic, carcinogenic, skin irritation, teratogenicity, and have allergic dermatitis and mutations effects.Therefore, various efficiently techniques were investigated to treat wastewater from such pollutants.
One of the most important techniques is the adsorption method using various adsorbents. It is cost effective, high efficient and economic feasibility. Recently, many adsorbents materials derived from agricultural wastes are applied in dyes removal from wastewater. One of the most unique adsorbent materials are lignocellulosic materials which are available in large amounts that used as a fuel for sugar mills for pulp. Bagasse is a macromolecular compound consists of lignin, cellulose, and hemicellulose. Their surfaces have high densities of hydroxyl, carboxyl, and carbonyl groups.