Comparison of anaerobic treatment of leachates from an urban-solid-waste landfill at ambient temperature and at 35 C
The Landfill of Meruelo (Cantabria, Spain) is situated in a warm area. The leachates are
produced at a temperature higher than 17° C, even during the winter period. The treatment
of the leachates was carried out in a laboratory-scale upflow anaerobic sludge-bed reactor
(UASB) at a temperature of 35° C and at ambient temperatures (15–20° C), with the aim of
determining the effect of temperature on the COD removal efficiency. At a temperature of 35°
C, the organic loading rate was up to 30 kg COD m− 3 day− 1 and at ambient temperatures …
produced at a temperature higher than 17° C, even during the winter period. The treatment
of the leachates was carried out in a laboratory-scale upflow anaerobic sludge-bed reactor
(UASB) at a temperature of 35° C and at ambient temperatures (15–20° C), with the aim of
determining the effect of temperature on the COD removal efficiency. At a temperature of 35°
C, the organic loading rate was up to 30 kg COD m− 3 day− 1 and at ambient temperatures …
The Landfill of Meruelo (Cantabria, Spain) is situated in a warm area. The leachates are produced at a temperature higher than 17°C, even during the winter period. The treatment of the leachates was carried out in a laboratory-scale upflow anaerobic sludge-bed reactor (UASB) at a temperature of 35°C and at ambient temperatures (15–20°C), with the aim of determining the effect of temperature on the COD removal efficiency. At a temperature of 35°C, the organic loading rate was up to 30 kg COD m−3 day−1 and at ambient temperatures organic loading rates were lower than 15 kg COD m−3 day−1. The average performance of COD removal efficiency was always higher than 82% in both cases, at hydraulic retention times shorter than a day. No nutrients were added to the leachates throughout the study.
Elsevier
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