Journal
ENVIRONMENTAL TECHNOLOGY
Volume 36, Issue 16, Pages 2115-2124Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09593330.2015.1021860
Keywords
biological treatments; thermophilic aerobic membrane reactor (TAMR); ultrafiltration; surfactants removal; phosphorus removal
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Funding
- Idroclean S.p.A. (Casirate d'Adda - Bergamo, Italy)
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This paper describes the advantages of thermophilic aerobic membrane reactor (TAMR) for the treatment of high strength wastewaters. The results were obtained from the monitoring of an industrial and a pilot scale plant. The average chemical oxygen demand (COD) removal yield was equal to 78% with an organic loading rate (OLR) up to 8-10 kg(COD) m(-3) d(-1) despite significant scattering of the influent wastewater composition. Total phosphorus (TP) was removed with a rate of 90%, the most important removal mechanism being chemical precipitation (as hydroxyapatite, especially), which is improved by the continuous aeration that promotes phosphorus crystallization. Moreover, surfactants were removed with efficiency between 93% and 97%. Finally, the experimental work showed that thermophilic processes (TPPs) are complementary with respect to mesophilic treatments.
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