Propylene glycol monomethyl ether acetate (PGMEA) photoresist solvent and monoaromatics are typical organic pollutants found in the wastewater discharged from semiconductor manufacturing processes. Conventional treatment technologies, however, remain mostly ineffective to eliminate these aqueous streams. Herein, we developed a novel strategy for highly efficient degradation of PGMEA archetypal ...

Sickle erythrocyte (RBC) membranes were previously shown to manifest increased Fenton activity (iron-dependent, peroxide-driven formation of hydroxyl radical [.OH]) compared with normal RBC membranes, but the nature of the catalytic iron was not defined. We now find that sickle membranes exposed to superoxide (.O2-) and hydrogen peroxide (H2O2) have three distinct iron compartments able to act ...

In this study, Co-modified alkalinized g-C3N4 (named Co-CNK-OH) was prepared for the Fenton-like photocatalytic degradation of tetracycline (TC) via a simple yet effective calcination–impregnation method. all samples CNK-OH with different Co2+ loadings, Co-CNK-OH catalyst optimal content (9%) exhibited highest catalytic activity, 87.1% removal and 50% efficiency total organic carbon (TOC). Mech...

Sustainable industrial processes are essential for better economic growths and the conservation of environment. Steel scale waste (SSW) is a byproduct steel production containing oxides in large quantity; presently, it mainly disposed off to landfill. However, being rich iron source, appears attractive based on Fenton technology that catalyzed by species. This study originates from idea exploit...

Chemical synthetic pharmaceutical wastewater has characteristics of high concentration, toxicity and poor biodegradability, so it is difficult to directly biodegrade. We used acid modified attapulgite (ATP) supported Fe-Mn-Cu polymetallic oxide as catalyst for multi-phase Fenton-like ultraviolet photocatalytic oxidation (photo-Fenton) treatment with actual chemical the object. The results showe...

The removal efficiency of 4-chlorophenol with different advanced oxidation processes have been studied. Oxidation experiments were carried out using two 4-chlorophenol concentrations: 100 mg L and 250 mg L and UV generated from a KrCl excilamp with (molar ratio H2O2: 4-chlorophenol = 25:1) and without H2O2, and, with Fenton process (molar ratio H2O2:4chlorophenol of 25:1 and Fe concentration of...

Background: Mature landfill leachate is a complicated mixture which is resistant to biological treatment processes. The treatment of mature landfill leachate by struvite precipitation and Fenton oxidation was the main objective of the current research. Methods: Struvite with the phosphate/ammonia/magnesium molar ratio of 1/1/1.05 was considered during all experiments. Five initial pHs of 3, 4,...