Conductive Polyaniline Enhanced Decolorization of Azo Dyes in Anaerobic Wastewater Treatment

Abstract

The polyaniline (PANI) was synthesized by chemical oxidation and was conductive media to improve the anaerobic sludge to decolorize the azo dye-containing wastewater in this study. The effect of carbon sources, chemical oxygen demand (COD) concentration and PANI dosage on the decolorization and degradation performance of anaerobic sludge was investigated. The optimized carbon source for decolorization of azo dye by anaerobic sludge was the sucrose in our research. The color removal can be increased by ~20% from the anaerobic system adding with PANI material due to the accelerated degradation of the carbon source by the PANI. Based on the decolorization, the azo dye-containing wastewater treatment could achieve an optimal effect when PANI of 400 mg/L was added in the anaerobic sludge. Finally, the effect of the additional PANI on the microorganism communities in the anaerobic sludge was also investigated.

Impedance matching optimization of hierarchical carbon fiber@MoS2@PANI nanocomposite with core‐sheath structure for achieving excellent microwave absorption

“…At the same time, PANI is equipped with high electrical conductivity, low density, good chemical stability, and good biocompatibility as a typical conductive polymer. [31][32][33][34][35][36][37][38] In this work, a new core-sheath structure has been constructed based on past experimental research that the CF possessing the high mechanical strength and the easily modified surface is regarded as the inner core. And the MoS 2 sheath with a unique hierarchical structure is decorated on the CF surface to fabricate the CF@MoS 2 (CM) nanocomposite through a simple hydrothermal method.…”

Sugar-Based Phase-Selective Supramolecular Self-Assembly System for Dye Removal and Selective Detection of Cu2+ Ions

“…Therefore, there is always a need for an effective dye adsorbent system. Usually, photocatalytic degradation, − photoelectrocatalytic degradation, photodegradation, , photo-Fenton catalytic degradation, , Janus nanoabsorbents, nanocomposites, , activated carbon, , and biosorption methods − have been used to remove organic contaminants such as dyes and harmful chemicals from wastewater. However, phase-selective supramolecular organogelators having appropriate hydrophilic/hydrophobic sites are usually found to be promising in this process.…”

Construction of an S-Scheme Ag2MoO4/ZnFe2O4 Nanofiber Heterojunction for Enhanced Photoelectrocatalytic Activity under Visible Light Irradiation

“…Especially in the era of rapid industrial development, refractory organic dyes and pathogenic bacteria are discharged into water bodies, which brings huge risks to human health. Commonly used organic dye removal methods include adsorption, biological treatment, , membrane separation, and photocatalytic degradation . In addition, most pathogenic bacteria will be killed after physical or chemical disinfection, but some will still survive and develop resistance.…”