skip to main content
Idioma:

TREATMENT OF OIL AND GAS PRODUCED WASTEWATER BY DEVELOPING AND OPTIMIZING A PHOTOCATALYTIC METHOD

Mousa, Jana ; Hamd, Wael

Zenodo 2022

Texto completo disponível

Citações Citado por
  • Título:
    TREATMENT OF OIL AND GAS PRODUCED WASTEWATER BY DEVELOPING AND OPTIMIZING A PHOTOCATALYTIC METHOD
  • Autor: Mousa, Jana ; Hamd, Wael
  • Assuntos: Produced wastewater, Advanced Oxidation Processes, Photocatalysis, Zinc oxide, Degradation efficiencies, Concentration, Annealing temperature
  • Notas: RelationTypeNote: HasVersion -- 10.5281/zenodo.6511581
    10.5281/zenodo.6511581
  • Descrição: The treatment of the produced wastewater immerged from the oil and gas industries is indispensable due to the current environmental awareness and strict regulations. It’s also very challenging due to the large amounts of produced wastewater and its complex nature that cannot be treated effectively by traditional wastewater treatment technologies. The employment of photocatalysis, based on advanced oxidation processes (AOPs), as an innovative, environmentally friendly, facile and cost effective technology shall provide the route of an effective treatment. The main purpose of this research is to optimize the factors influencing the photocatalytic degradation kinetics of the contaminants into the non-harmful by products, carbon dioxide and water. For the aim of the proposed research, zinc oxide was chosen to be as the photocatalyst. It was synthesized and prepared by the sol-gel method followed by dip-coating on a fiber glass substrate to create ZnO thin film. To test the effect of the photoactivity of the prepared photocatalyst on the kinetics of the photo-degradation, two parameters were altered and observed, the catalyst concentration and post-heat treatment temperatures. The photocatalytic degradation process was experimented on methylene blue as the contaminant source, and UV rays as the light source. The experimental time was 480 minutes, where the varied absorbance of methylene blue upon degradation was monitored at an interval of 30 minutes. The catalyst concentration was varied to attain these 5 values, 0.03, 0.07, 0.1, 0.2 and 0.6M of zinc oxide. This change investigated how influencing the catalyst loading was on its surface and in turn on the degradation efficiencies. Interesting results emerged showing that the catalyst of concentration 0.1M was found to have the highest degradation efficiency where it was 36% more than the lowest concentration (0.03M), and 10% more than the highest concentration (0.6M) rendering 0.1M as the optimum catalyst concentration to be used for the investigation of the annealing temperature. Moving on, the application of four annealing temperatures, 250, 350, 450, and 550°C, were studied on the 0.1M ZnO catalyst to further illustrate the effect of post-heat treatment on the thin films structure and consequently the rate of degradation. As a result, annealing at 450°C showed the highest degradation kinetics and efficiency of 88.82%
  • Editor: Zenodo
  • Data de criação/publicação: 2022
  • Idioma: Inglês
Links
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  8 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.