Collivignarelli Maria Cristina, Abbà Alessandro, Bertanza Giorgio
a Department of Civil and Architectural Engineering , University of Pavia , via Ferrata 1, 27100 Pavia , Italy.
Environ Technol. 2015 Jul-Aug;36(13-16):2115-24. doi: 10.1080/09593330.2015.1021860. Epub 2015 Mar 23.
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 kgCOD 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.
本文描述了嗜热好氧膜生物反应器(TAMR)处理高浓度废水的优势。研究结果来自对一座工业规模和一座中试规模工厂的监测。尽管进水废水成分存在显著差异,但平均化学需氧量(COD)去除率仍达到78%,有机负荷率(OLR)高达8 - 10 kgCOD m(-3) d(-1)。总磷(TP)的去除率为90%,最重要的去除机制是化学沉淀(尤其是形成羟基磷灰石),持续曝气促进磷结晶,从而提高了化学沉淀效果。此外,表面活性剂的去除效率在93%至97%之间。最后,实验工作表明,嗜热工艺(TPPs)与中温处理互为补充。