RT Conference Proceedings
T1 Mixing degree effect in the photodegradation of olive mill wastewater
A1 Albqmi, Mha
A1 Basegio-Castellani, Nathalia
A1 Belaiba, Amani
A1 Hodaifa, Gassan
K1 OMWs
K1 Photo-degradation
K1 Photo-Fenton
K1 Semi-industrial reactor
K1 Artificial UV-light
AB Currently, in olive oil producing countries, wastewater from olive mills is collected in large evaporation ponds without any treatment. This overall situation presents an environmental problem due to their high organic load and the presence of toxic and inhibiting growth compounds. Photo-Fenton reaction can be used to degrade the pollutant compounds that present in OMWs. The degree of mixing inside the photoreactor is a key parameter to increase the photodegradation of organic matter. For this reason, experiments were performed in a semi-industrial batch stirred photo-reactor (10 L capacity). The agitation rates were varied in each experiment as follows 60, 150, 300, 400, and 500 rpm. The experimental results showed that the photoreaction has developed in two steps, an instantaneous reaction that takes place in the first five moments and a second reaction that is slower and lasts up to three hours. During the instantaneous reaction, the conversion based on total organic carbon (TOC) increases with the augment of agitation rate, however, during the second step the maximum conversion (XTOC = 0.9) is recorded at 300 rpm in the first 100 min. The common operating conditions were initial pH = 3, hydrogen peroxide equal to that determined by the stoichiometry of the reaction, oxidant/catalyst ratio = 0.03, temperature = 20 °C and four artificial ultraviolet lamps to provide sufficient ultraviolet irradiation. The final treated water could be used in irrigation.
PB IEEE
YR 2022
FD 2022
LK https://hdl.handle.net/10433/20163
UL https://hdl.handle.net/10433/20163
LA en
NO En: 2022 International Conference on Engineering and Emerging Technologies (ICEET)
NO Universidad Pablo de Olavide. Departamento de Biología Molecular e Ingeniería Bioquímica
DS RIO
RD May 22, 2026