الفهرس 
Water PollutionOnly 14 pages are availabe for public view
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Abstract
The object of this investigation is to study the feasibility and the efficiency of adsorbents in the removal of some industrial dyes from wastewater such as Amaranth dye (Acid dye) and Crystal Violet dye (Basic dye). The used adsorbents are; Chitosan (CS), Nano-magnetic chitosan (CuFe2O4/CS) and Extracted chitosan (CSH). This thesis contains four main chapters and these can be summarized as follows: CHAPTER I: represents a general introduction and a literature review of recent publications related to the subject of this investigation which represent the scientific background of this thesis. CHAPTER II: Include materials, instruments, preparations and general procedures, advanced methods of analysis. CHAPTER III: Deals with the adsorbents’ characterizations and the results obtained from this study with respect to the following: •Chitosan is a strong adsorbent for the removal of Amaranth (anionic dye) and Crystal Violet (cationic dye) with removal ratio 99% for Amaranth and 91% for Crystal Violet. •Nano-magnetic chitosan was prepared by sol-gel method and used as an adsorbent for the removal of Amaranth (anionic dye) and Crystal Violet (cationic dye) with removal ratio 75.6% for Amaranth and 87.41% for Crystal Violet. •Chitosan extracted from peel shrimp was prepared and used as an adsorbent for the removal of Amaranth (anionic dye) and Crystal Violet (cationic dye) with removal ratio 98.2% for Amaranth and 67% for Crystal Violet. • The effect of temperature: for chitosan, the sorption efficiency of Amaranth and Crystal Violet increases as temperature increases. for nano-magnetic chitosan, the sorption efficiency for Amaranth decrease as temperature increase but for Crystal Violet, sorption efficiency increase as temperature increase. for extracted chitosan, the sorption of Amaranth and Crystal Violet decrease as the temperature increase. •Regeneration of chitosan and nano-magnetic chitosan was done by using NaOH for Amaranth and HCl for Crystal Violet.