Borja, R., Banks, C.J., Alba, J. and Escobar, J.P.
The temperature dependence of the kinetic parameters derived for the aerobic treatment of wastewater from the washing of olives prior to the oil production process
Journal of Environmental Science and Health, Part A. Toxic/Hazardous Substances and Environmental Engineering, 30, (8), . (doi:10.1080/10934529509376296).
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A kinetic study of aerobic treatment of wastewater produced from the washing of olives, prior to the olive oil manufacturing process, was carried out at two different temperatures (14 and 28°C) and hydraulic retention times of 6, 12, 18, 24 and 30 h. The wastewater was more efficiently treated at an operating temperature of 28°C. Over 93% of soluble COD was removed at a retention time of 6 h whereas at 14°C, COD removal was only 67% at the same retention time. At 28 °C the maximum specific substrate utilization rate (qm) was about 11 times faster than at 14°C. The biokinetic parameters ?m (maximum growth rate of microorganisms), Ks (saturation constant) and kd (endogenous respiration coefficient) were temperature dependent and showed higher values at 28 °C than at 14 °C. The overall growth yield (Y) was of the same order of magnitude at the different temperatures.
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