Emissões de óxido nitroso do tanque de aeração de uma estação de tratamento de esgotos com sistema de lodos ativados convencional

Química Nova

Renato P. Ribeiro²  William Z. De Mello²  Renata B. Alvim²  Samara A. Andrade²  Ariane C. Brotto²  Débora C. Kligerman¹  Jaime L. M. Oliveira¹  Paulo A. De Almeida¹ 

[1] ,Universidade Federal Fluminense Instituto de Química Departamento de GeoquímicaNiterói RJ ,Brasil

关键词: nitrous oxide;    wastewater treatment plant;    activated sludge;   

DOI  :  10.1590/S0100-40422013000700013

来源: SciELO

【 摘 要 】

Nitrous oxide (N2O) emissions were measured monthly from January to June 2010 in the aeration tank of a wastewater treatment plant (WWTP) in Southeast Brazil. Emissions were lower in summer than winter and were positively related with influent ammonium (NH4+) concentration. The average N2O emission was 1.11 kg N day-1 corresponding to 0.02% of the influent total nitrogen load. The average emission factor calculated for the population served was 2.5 lower than that proposed by the Intergovernmental Panel on Climate Change (IPCC) for inventories of N2O emissions from WWTPs with controlled nitrification and denitrification processes.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License