Textile Dyeing Industries

Textile effluents tend to be very toxic while they contain many metal complex dyes. The high concentration of such dyes causes many water-borne diseases and boosts the BOD of this receiving waters. Having said that, flyash is a significant pollutant produced in coal-based thermal power plants and has potentiality for usage as an adsorbent. In the present work, adsorption researches were produced in managing the dye solutions of methylene blue (M-B) and Congo red (CR) textile dyes simply by using flyash. Ramifications of quantity of adsorbent, time of contact, initial effluent concentration, pH and temperature have already been investigated experimentally and outcomes were weighed against those gotten simply by using activated carbon. The first-order adsorption rate constants were determined and found decreasing with heat. The results obtained had been fitted by Langmuir model since monolayer development noticed. Also, Langmuir adsorption isotherm parameters were projected from the experimental information acquired for both methylene blue and Congo purple dyes utilizing both adsorbents.

Keywords

• Dyeing professional effluent;
• Methylene blue dye;
• Cong red dye;
• Flyash;
• Triggered carbon;
• Adsorption;
• Portion of color elimination;
• Equilibrium concentration;
• First-order price constants;
• Langmuir isotherm variables