Advanced Oxidation Processes (AOPs) for Refinery Wastewater Treatment Contains High Phenol Concentration

Azizah, Alif N.; Widiasa, I Nyoman

doi:10.1051/matecconf/201815603012

Cited by 6 publications

(1 citation statement)

References 20 publications

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“…Wang et al [148] also reported that AOPs are usually rapid processes with high treatment efficiencies and little residual production, but on the other hand, associated with high energy requirements. Azizah and Widiasa [149] investigated the application of H 2 O 2 /UV and H 2 O 2 /UV/O 3 configurations for the treatment of PRWW with high phenol concentrations. High phenol degradation of about 93.75% was achieved using a H 2 O 2 /UV/O 3 configuration with 1000 ppm of H 2 O 2 after 120 min.…”

Section: Advanced Oxidation Processesmentioning

confidence: 99%

Recent Advancements in the Treatment of Petroleum Refinery Wastewater

Lawan,

Kumar,

Rashid

et al. 2023

Water

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The treatment of petroleum refinery wastewater (PRWW) is of great interest in industrial wastewater management. This wastewater contains a diverse concentration of contaminants such as oil and grease, petroleum hydrocarbons, phenols, ammonia, and sulfides, as well as other organic and inorganic composites. Refinery wastewater treatment has been attempted through various processes, including physical, biological, chemical, and hybrid methods, which combine two or more techniques. This review aims to summarize current research studies involved in the treatment of petroleum refinery wastewater using conventional, advanced, and integrated treatment techniques. Furthermore, it critically highlights the efficiencies and major limitations of each technique and the prospects for improvements. Several conventional treatment techniques (basically, the physicochemical and biological processes) are discussed. In this context, advanced oxidation processes (AoPs), especially electrochemical oxidation and photocatalysis, as well as integrated/hybrid processes are found to be effective in removing the recalcitrant fraction of organic pollutants through their various inherent mechanisms. These techniques could effectively remove COD and phenol concentrations with an average removal efficiency exceeding 90%. Hence, the review also presents an elaborate discussion of the photocatalytic process as one of the advanced techniques and highlights some basic concepts to optimize the degradation efficiency of photocatalysts. Finally, a brief recommendation for research prospects is also presented.

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Section: Advanced Oxidation Processesmentioning

confidence: 99%

Recent Advancements in the Treatment of Petroleum Refinery Wastewater

Lawan,

Kumar,

Rashid

et al. 2023

Water

View full text Add to dashboard Cite

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Removal efficiency of phenol by ozonation process with calcium peroxide from aqueous solutions

2021

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Phenol has been introduced as a priority pollutant by the US Environmental Protection Agency. Advanced oxidation processes (AOPs) are one of the most efficient methods for removal of non-degradable organic pollutants in aqueous solutions. The removal efficiencies of phenol and COD under optimal conditions pH = 3, phenol concentration = 5 mg/L, CaO2 concentration = 0.025 mg/L, temperature 25 °C, 1 g/min ozonation rate and contact time = 90 min in synthetic and real samples (Zarand coal washing factory in Kerman) were obtained 97.8%, 87% and 80%, 65.4%, respectively. The kinetics of phenol decomposition follows from the pseudo-first-order equation. Thermodynamic studies show that phenol decomposition with ozonation and calcium peroxide is an endothermic process. The use of ozonation process with calcium peroxide is an efficient method and can be recommended as a coefficient method for the removal of phenol.

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