Application of cold plasma technology for the simultaneous degradation and viscosity removal of polyacrylamide and its copolymers from contaminated wastewater.

Polyacrylamide and its copolymers are routinely employed for polymer flooding, generating an emulsifying and highly viscous wastewater that warrants enhanced treatment due to its recalcitrant nature. Herein, a falling-film dielectric barrier discharge (DBD) plasma reactor was used to examine the simultaneous viscosity removal and degradation of polyacrylamide (PAM), hydrolyzed, and cationic polyacrylamide (HPAM and CPAM) wastewater. The reactor conditions (pH: 6.

Non-thermal plasma activated peroxide and percarbonate for tetracycline and oxytetracycline degradation: Synergistic performance, degradation pathways, and toxicity evaluation.

Tetracycline (TC) and Oxytetracycline (OTC) are common antibiotics increasingly detected in the environment, posing a potential risk to human and aquatic lives. Although conventional methods such as adsorption and photocatalysis are used for the degradation of TC and OTC, they are inefficient in removal efficiency, energy yield, and toxic byproduct generation. Herein, a falling-film dielectric barrier discharge (DBD) reactor coupled with environmentally friendly oxidants (hydrogen peroxide (HPO), sodium percarbonate (SPC), and HPO + SPC) was applied, and the treatment efficiency of TC and OTC was investigated.

Advances of non-thermal plasma discharge technology in degrading recalcitrant wastewater pollutants. A comprehensive review.

With development and urbanization, the amount of wastewater generated due to human activities drastically increases yearly, causing water pollution and intensifying the already worsened water crisis. Although convenient, conventional wastewater treatment methods such as activated sludge, stabilization ponds, and adsorption techniques cannot fully eradicate the complex and recalcitrant contaminants leading to toxic byproducts generation. Recent advancements in wastewater treatment techniques, specifically non-thermal plasma technology, have been extensively investigated for the degradation of complex pollutants in wastewater.