A Hybrid Denitrification-Alternate Cycles Reactor To Enhance the Nitrogen Biological Removal in a Real Wastewater Treatment Plant

作者：Santinelli M^*; Eusebi A L; Cola E; Battistoni P

来源：Industrial & Engineering Chemistry Research, 2011, 50(24): 13947-13953.

DOI：10.1021/ie201346f

This paper involves the retrofitting of a real municipal wastewater treatment plant (WWTP) of 6600 population equivalent (PE), from a traditional biological process to a predenitrification-alternating cycles (PreD-AC) technology, defining a hybrid reactor. The application was investigated for 11 months, from the upgrading in October 2009 to September 2010. The process optimization allowed to reach high standards of effluent's quality, with total nitrogen (TN) and ammonia (NH(4)-N) concentrations lower than 15 and 1 mg L(-1), respectively, Moreover, the flexibility and automatic control of the process guaranteed an energy consumption decrease of 17%, with a specific energy consumption of 0.18 kW(h) PE(TN)(-1) d(-1) as an average value. A reduction of 20% was reached by comparing the sludge amounts disposed in landfills in 2009 and 2010.

• 出版日期2011-12-21