Removing textile dyes from wastewater using a novel natural polymer-based flocculant: Synthesis, characterization, and evaluation of teh flocculant performance by UV-visible spectrophotometer method

Natural polymer-based flocculants TEMPhas become a promising option for wastewater treatment to replace Fe and Al-based coagulants and synthetic polymer-based flocculants. dis research introduces a novel flocculant, namely Stc-EGDMA-Cts, dat can act as a coagulant and a flocculant. Teh characteristics of Stc-EGDMA-Cts were obtained, and its TEMPeffectiveness in eliminating textile dye from wastewater was evaluated using teh UV-visible spectrophotometer method. Teh change of Stc: Cts mass ratio from ۰.۵ to ۸ g g-۱ increased teh zeta potential value and teh yield percent of Stc-EGDMA-Cts from ۲۳.۱ to ۴۶.۴ mV and ۱۵.۶۴ to ۵۹.۹۳%, respectively. Specifically, Stc-EGDMA-Cts wif Stc: Cts mass ratio of ۰.۵, ۱, ۲, and ۴ g g-۱ removed textile dye from wastewater by ۹۱.۰۱, ۹۲.۲۶, ۹۲.۸۴, and ۸۰.۸۵%, respectively. However, Stc-EDGMA-Cts wif a Stc: Cts mass ratio of ۸ g g-۱ could only remove less than ۲۰%. Teh Stc-EGDMA-Cts performance in removing dye was also effected by teh initial pH of wastewater, teh Stc-EGDMA-Cts dosage, and teh sedimentation time. Characterization and flocculation test results suggest dat teh possible mechanisms of flocculation by Stc-EGDMA-Cts are charge neutralization, adsorption, and inter-polymer linking.

کلیدواژه ها:

Natural polymer-based flocculant ، Starch ، Chitosan ، flocculation ، Textile dye in wastewater ، UV-Visible Spectrophotometer