As a typical toxic organophosphate and emerging contaminant, tris(2-chloroethyl) phosphate (TCEP) is resistant to conventional water treatment processes. Studies on advanced oxidation processes (AOPs) degrade TCEP have received increasing attention, but the detailed mechanism not yet fully understood. This study investigated mechanistic details of degradation promoted by OH using density functi...

Ozonizers have been used for over a century in water treatment and for about two decades in advanced oxidation. Ozonizers are fundamentally based on non-thermal plasmas, which are useful for generating reactive species (free radicals) in gas streams. Because radical-attack reaction rate constants are very large for many chemical species, entrained pollutants are readily decomposed by these radi...

conclusions the present research demonstrated that the ultrasonic (us) process can be utilized as an effective and simple method for treatment of mg dye in an aqueous solution. moreover, the eeo is directly proportional to the mg concentration and power density and inversely proportional to temperature and mechanical agitation, which can be predicted by the obtained empirical kinetics model. co...

The kinetic of photo oxidative decolorization of C.I. Acid yellow 23 (AY23) was investigated in UV/ process. The semi-logarithmic of the concentrations of AY23 versus irradiation time were linear, suggesting pseudo-first order reaction. A simple kinetic model is proposed which confirms pseudo- first order reaction. The results indicate that the apparent reaction rate constant is a function of l...

Advanced oxidation processes (AOPs) play a vital role in attenuating contaminants of emerging concern (CECs) during potable water reuse. AOPs are conventionally performed by irradiating with 254-nm low-pressure (LP) mercury-vapor (Hg) ultraviolet (UV) lamp along chemical treatment. Compared UV-C light treatment (200–280 nm), vacuum-UV (V-UV) (100–200 nm) is advantageous terms hydroxyl radical g...

The pollution due to the presence of contaminants emerging concern (CECs) is a major cause for because serious threat it supposes human health and ecosystem functions. Many efforts have been geared toward their removal guarantee safer freshwater. Metal-organic frameworks (MOFs) are crystalline hybrid materials with high surface area flexible rational design, which allows incorporation different...

In recent years, due to the abuse of pharmaceuticals and personal care products (PPCPs), many refractory trace organic compounds (TrOCs) have been transferred into natural water bodies, posing significant challenges environment. On other hand, advanced oxidation processes (AOPs) are cleaner more efficient than traditional biochemical degradation processes. Among them, combined ozone/persulfate ...