RT - Journal Article T1 - Adsorption Rate of 198 Reactive Red Dye from Aqueous Solutions by using Activated Red Mud JF - Iran-J-Health-Sci YR - 2013 JO - Iran-J-Health-Sci VO - 1 IS - 1 UR - http://jhs.mazums.ac.ir/article-1-54-en.html SP - 36 EP - 43 K1 - Red mud K1 - Azo dyes K1 - RR198 K1 - Textile wastewater K1 - Adsorption AB - Backgroud and purpose: Dye is one of the problems of industrial effluent such as textile industries. The dyes can be removed by various methods. Therefore, the aim of this study was the evaluation of adsorption rate of reactive red 198 from aqueous solution by activated red mud. Materials and methods: This research was a lab study. Activated red mud was used as an adsorbent to remove reactive red 198 dye. The effect of various parameters on performance of adsorbent was investigated and the isotherm of adsorption was determined. The dye concentration was measured in wavelength of 518 nm by spectrophotometer. Results: The results indicated that the adsorption efficiency reduced by increasing of initial dye concentration. Increasing of contact time and adsorbent dose can lead to increasing of the removal efficiency. The maximum removal efficiency was occurred pH between 2 to 3. The data was best fitted on Frandlich and Temkin isotherms. Conclusion: The red mud had a satisfactory quality in dye adsorption. It can be used as effective and inexpensive adsorbents for treatment of textile effluent. LA eng UL http://jhs.mazums.ac.ir/article-1-54-en.html M3 10.18869/acadpub.jhs.1.1.36 ER -