Evaluation of N2O Emissions in Wastewater Treatment Systems: a Comparative Analysis of Emission Between Case Studies of Developed and Developing Countries
View/Open
11270_2019_4086_Author.pdf (591,1Kb) (Restricted access)
Request copy
Què és aquest botó?
Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:
- Disposem del correu electrònic de l'autor
- El document té una mida inferior a 20 Mb
- Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
Cita com:
hdl:2117/128829
Document typeArticle
Defense date2019-02-01
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial
property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public
communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
N2O is a GHG of environmental concern. It is generated from the nitrous material contained in wastewater and is the sixth most important contributor to N2O emissions. There is a great variety of methods to quantify the emission of N2O in a wastewater treatment plant (WWTP), which present variants among them, such as predetermined values and operational data of the plants. In this paper, we compared three different methods to quantify the N2O emission in 2015 from WWTP in two metropolitan areas with high population density: Mexico City and the Metropolitan Area of Barcelona (MAB). MAB has advanced treatment plants that remove nutrients from wastewater, and Mexico City has only traditional treatment plants. The N2O emission/inhabitant from WWTPs in MAB (3,214,211 inhabitants served) was 40% lower than the plants in Mexico City (1,806,440 inhabitants served). The MAB emission was 0.009 tCO2e/inhabitant and 0.013 tCO2e/inhabitant in Mexico City; these emission values could be considered statistically different with a risk error of 5%. This difference could be due to the fact that MAB has nutrient removal (42% of inhabitants served), and Mexico City has only traditional treatment plants. The results obtained may be influenced by the default emission factors of each methodology. In addition, per capita protein consumption and water consumption per inhabitant are different parameters that must be considered between these zones to quantify and compare the emission of N2O. The integral methods are closer to the reality of the N2O emission when the operating parameters of each plant and wastewater are considered. There should be more research on the reduction of this GHG in wastewater treatment for a correct quantification of these emissions, and more especially in the estimation of N2O emission factors suitable for each treatment plant and study area.
CitationRamírez, M.; Gasso, S.; Güereca , L. Evaluation of N2O Emissions in Wastewater Treatment Systems: a Comparative Analysis of Emission Between Case Studies of Developed and Developing Countries. "Water, air and soil pollution", 1 Febrer 2019, vol. 230, núm. 2, p. 42-1-42-10.
ISSN0049-6979
Publisher versionhttps://link.springer.com/article/10.1007/s11270-019-4086-0
Files | Description | Size | Format | View |
---|---|---|---|---|
11270_2019_4086_Author.pdf![]() | 591,1Kb | Restricted access |