The combined application of UV irradiation at 254 nm and chlorination (UV/chlorine
process) was investigated for ammonia removal in water treatment. The UV/chlorine process …

Ammonia nitrogen in waste water is formed by the enzymatic breakdown of urea, proteins,
and other nitrogen-containing materials. Most of the organic nitrogen in waste waters is in …

The presence of ammonium (NH 4+) in drinking water treatment results in inhibition of
disinfection efficiency and formation of nitrogenous disinfection by-products. Our previous …

One concern with UV disinfection of water is the production of nitrite when polychromatic UV
sources are utilized. Based on previous work, it was hypothesized that a small addition of …

When adding sufficient chlorine to achieve breakpoint chlorination to source water
containing high concentration of ammonia during drinking water treatment, high …

The impact of chloride ion and chlorine radical on the formation of nitrite was investigated
under Vacuum-UV (VUV) photolysis of nitrate contaminating water. An increase in chloride …

Bench‐scale experiments were conducted to determine the effectiveness of using pulsed‐
ultraviolet (UV) irradiation and pulsed‐UV/hydrogen peroxide (H2O2) processes to destroy …

Disinfection by-products (DBPs) are a great challenge to our drinking water security.
Particularly, nitrosamines (NAms), as emerging DBPs, are potently carcinogenic, mutagenic …

Prechlorination of water upstream of an ultraviolet (UV) disinfection process may possibly
influence the effectiveness of UV inactivation through the absorbance of UV radiation …

Most conventional biological treatment wastewater treatment plants (WWTPs) contain nitrate
in the effluent. Nitrate undergoes photolysis when irradiated with ultraviolet (UV) light in the …