Nitrous oxide emissions from the aeration tank of a wastewater treatment plant with conventional activated sludge process

Química Nova

Ribeiro, Renato P.¹  Companhia Estadual de Águas e Esgotos, Rio de Janeiro, Brasil¹  Mello, William Z. de¹  Universidade Federal Fluminense, Niterói, Brasil¹  Almeida, Paulo A. de¹  Andrade, Samara A.¹  Fundação Oswaldo Cruz, Rio de Janeiro, Brasil¹  Kligerman, Débora C.¹  Oliveira, Jaime L. M.¹  Brotto, Ariane C.¹  Alvim, Renata B.¹ 

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

DOI  :  10.1590/S0100-40422013000700013

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown