The effect of low operating temperature and pollutant concentration on the performance of five anaerobic hybrid reactors was investigated. Stable and efficient long-term (>400 days) treatment of a cold (6–13°C), volatile fatty acid (VFA)-based, wastewater was achieved at applied organic loading rates (OLRs) of 5 kg chemical oxygen demand (COD) m−3 d−1 with COD removal efficiencies c. 84% at 6°C (sludge loading rate (SLR) 1.04–1.46 kg COD kg [VSS]−1 d−1). VFA-based wastewaters, containing up to 14 g pentachlorophenol (PCP) m−3 d−1 or 155 g toluene m−3 d−1 were successfully treated at applied OLRs of 5–7 kg COD m−3 d−1. Despite transient declines in reactor performance in response to increasing toxicant loading rates, stable operation (COD removal efficiencies > 90%) and satisfactory toxicant removal efficiencies (>88%) were demonstrated by the systems.
Low temperature anaerobic biotreatment of priority pollutants
R. M. McKeown, G. Collins, F. A. Chinalia, T. Mahony, V. O'Flaherty; Low temperature anaerobic biotreatment of priority pollutants. Water Sci Technol 1 March 2008; 57 (4): 499–503. doi: https://doi.org/10.2166/wst.2008.056
Download citation file:
Impact Factor 1.915
CiteScore 3.3 • Q2
13 days from submission to first decision on average