Simultaneous removal of nitrobenzene and phenol by homogenous catalytic wet air oxidation

Preparation of Granulated Biomass Carbon Catalysts—Structure Tailoring, Characterization, and Use in Catalytic Wet Air Oxidation of Bisphenol A

“…Moreover, the possibility of nickel and chromium contamination due to ball milling and the possibility of contamination coming from the pressure reactor were studied; no chromium was detected, and the amount of nickel varied between 0.2 and 0.7 mg/L (≡ 0.0034-0.0119 mmol/L). This amount was two or even three orders of magnitude lower than that obtained in a homogenous WAO experiment of phenol over a nickel catalyst (nickel concentration: 2 mmol/L [72]); therefore, nickel is not expected to contribute to the conversion of BPA in this study. The amount of leached calcium was also low (1.3-2.0 mg/L), whereas the amounts of leached phosphorus (8.4-14.8 mg/L), silica (13.0-14.0 mg/L), and boron (23.3-42 mg/L) were significant.…”

Synthesis and application of pillared clay heterogeneous catalysts for wastewater treatment: a review

“…25 In the past years, wastewater containing phenol has received increased attention because of its extreme toxicity to aquatic life and resistance to biodegradation. 24,26 Consequently, with regards to human health and the environment, it is crucial to purify water contaminated with phenol and its derivatives, which can be present in almost all industrial wastewater streams.…”

“…It is considered toxic at concentration above 2 mg L −1 , and when it is present in natural water streams it can lead to the formation of harmful chlorine solutions during disinfection by chlorination. 24 Typical concentrations of phenolic compounds in these industrial wastewaters are in the range of 200–1500 mg L −1 whilst the Environmental Protection Authority's limit for wastewater disposal discharge is 0.5 mg L −1 for surface water and 1 mg L −1 for sewerage water. 25 In the past years, wastewater containing phenol has received increased attention because of its extreme toxicity to aquatic life and resistance to biodegradation.…”

Kinetic analysis of soil contained pyrene oxidation by a pulsed discharge plasma process

“…The formed AOTs include O 3 /H 2 O 2 , O 3 /UV, H 2 O 2 /UV, Fenton oxidation, photocatalysis, ultrasonic oxidation, wet catalytic oxidation, non-thermal plasma oxidation, etc. All these AOTs have been used successfully for the organic pollutants oxidation in the liquid phase [4][5][6][7][8][9][10]. For the soil remediation, the AOTs of Fenton oxidation and photocatalysis have been tested successfully for remediating the soils contaminated by pesticides, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyl and total petroleum hydrocarbons [3,[11][12][13][14].…”