Removal of anionic and cationic dyes from aqueous solutions using drinking water treatment plant sludge (DWTS): Equilibrium and kinetic evaluation
6th EnviroChem, Trabzon, Türkiye, 5 - 08 Kasım 2024, ss.91, (Özet Bildiri)
- Yayın Türü: Bildiri / Özet Bildiri
- Basıldığı Şehir: Trabzon
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.91
- Karadeniz Teknik Üniversitesi Adresli: Evet
Özet
Dyes are among the most hazardous and significant water pollutants, as some can exhibit toxic, mutagenic, teratogenic, and carcinogenic effects on both aquatic life and humans, even at low concentrations. Due to the widespread use of both anionic and cationic dyes in various industrial processes, their removal from industrial wastewater is crucial for safeguarding public health, the environment, and aquatic ecosystems. Adsorption using low-cost adsorbents offers an effective and economical approach for eliminating dyes and other pollutants from aqueous solutions.1
In the present study, the natural drinking water treatment plant sludge (DWTS) has been utilized as a low cost and highly effective adsorbent in removal of an anionic (Remazol Brilliant Blue R) and cationic (Brilliant green) dyes from aqueous solution by batch adsorption technique. The characterization of the adsorbent was performed by FTIR, XRD and SEM techniques. Then the effects of experimental parameters such as initial pH of the solution, contact time, initial dye concentration, adsorbent concentration, and ionic strength were studied in detail upon the adsorption process. The experimental data were analyzed by the Langmuir, Freundlich, and Dubinin Radushkevich (D-R) isotherm models. The kinetics of the adsorption was tested using pseudo-first order, pseudo-second order kinetic models and intraparticle diffusion models. The experimental results indicated that DWTS can be successfully used for the removal of toxic anionic and cationic dyes from aqueous solutions.